Name | Location | Locator View | Connector End View |
|---|---|---|---|
A Solenoid (C1 Clutch) (Allison® MD) | Internal to the automatic transmission | -- | -- |
A/C Compressor Clutch (C60) | On the upper right front of the engine, on the front of A/C compressor behind pulley, part of the A/C compressor | ||
A/C High Pressure Switch (C60) | At the right front, behind the front bumper, on the top of A/C condenser receiver/dryer | ||
A/C-Wiper Diode | In the lower I/P harness, behind the lower center of the I/P, part of splice pack SP201, taped to the harness between the windshield wiper motor breakout and the bulkhead connector C200, behind the radio, pins A2, B2 and C2 | -- | -- |
ABS Relay (JE4) | On the front chassis harness, behind the cab at the cab bridge, mounted to the bottom of the radiator surge tank | ||
Accelerator Pedal Position (APP) Sensor | Behind the left side of the I/P, right of the steering column, above the accelerator pedal | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Air Brake Dryer (JE4 and JTU) | On the left side of the frame in the component box | ||
Air Brake Pressure Gage Lamp (JE4) | On the left side of the I/P, left of the IPC and below the driver information center (DIC), in the air brake pressure gage | ||
Air Compressor (K16) | Behind the cab at the outboard left frame rail, inboard of and above the fuse block assembly enclosure | ||
Air Compressor Relay (K16) | Behind the cab at the outboard left frame rail, inboard of and above the fuse block assembly enclosure, in the air compressor harness | ||
Air Suspension Dump Indicator (G40/G45/GSJ) | In the top of the center console | ||
Air Suspension Dump Switch (G40/G45/GSJ) | In the top of the center console | ||
Air Suspension Dump Valve Solenoid (G40/G45/GSJ) | On the inboard right frame rail, rear of the axle, in the air suspension dump valve | ||
Air Temperature Actuator | Behind the lower right side of the I/P, near the blower motor, on the front of the HVAC module | ||
Antenna | On the exterior upper left A-pillar | -- | |
Auto Cruise Switch (K34) | On the left side of the I/P, left of the IPC and below the driver information center (DIC) | ||
Auto Cruise Switch Diode | In the lower I/P harness, behind the lower center of the I/P, taped to the harness between the windshield wiper motor breakout and bulkhead connector C200, behind the radio, pins A and B | -- | -- |
Auto Cruise Switch/PTO Switch Diode | In the lower I/P harness, behind the lower center of the I/P, taped to the harness between the windshield wiper motor breakout and bulkhead connector C200, behind the radio | -- | Cruise Control Connector End Views or |
Automatic Transmission Input Shaft Speed (AT ISS) Sensor (Allison® LCT) | On the upper left side of the transmission, on the transmission bell housing | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission |
Automatic Transmission Input Shaft Speed (AT ISS) Sensor (Allison® MD) | On the lower right side of the transmission, on the transmission bell housing | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission |
Automatic Transmission Shift Lever Position Indicator (Allison® LCT) | In the center console, part of the automatic transmission shift lever | ||
Automatic Transmission Shift Selector (Allison® MD) | On the left side of the center console housing, at the top | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission |
Auxiliary Power Post (-) | In the center console | -- | |
Auxiliary Power Post (+) | In the center console | -- | |
B Solenoid (C2 Clutch) (Allison® MD) | Internal to the automatic transmission | -- | -- |
Backup Alarm (UZF) | On the back of the rear crossmember, on a bracket | ||
Backup Lamp - Left | At the rear of the left frame rail, part of the tail lamp assembly - left | -- | -- |
Backup Lamp - Right | At the rear of the right frame rail, part of the tail lamp assembly - right | -- | -- |
Backup Lamp Switch (Allison® LCT) | On the lower left side of the transmission, part of the park/neutral position (PNP) switch | -- | -- |
Backup Lamp Switch (Allison® MD) | Internal to the automatic transmission | -- | -- |
Backup Lamp Switch (M/T) | On the top forward right side of the transmission cover | ||
Battery - Inboard | On the outboard side of the right frame rail, in the battery box | -- | |
Battery - Outboard | On the outboard side of the right frame rail, in the battery box | -- | |
Blower Motor (C40/C60) | Behind the lower right side of the I/P | ||
Blower Motor Resistor Assembly (C40/C60) | Behind the lower right side of the I/P, on the front of the blower case, left of the blower motor | ||
Blower Motor Switch (C40/C60) | In the center of the I/P, above the radio, mounted in the HVAC control assembly | ||
Brake Fluid Level Switch (JE3) | At the front of the vehicle, behind the left side of the front crossmember, on the front of the brake master cylinder reservoir | ||
Brake Pressure Modulator Valve (BPMV) - LF (JE4) | On the left rear side of the front crossmember | ||
Brake Pressure Modulator Valve (BPMV) - LR (JE4) | On the left side of the crossmember forward of the rear axle | ||
Brake Pressure Modulator Valve (BPMV) - RF (JE4) | On the right rear side of the front crossmember | ||
Brake Pressure Modulator Valve (BPMV) - RR (JE4) | On the right side of the crossmember forward of the rear axle | ||
C Solenoid (C3 Clutch) (Allison® MD) | Internal to the automatic transmission | -- | -- |
C3 Pressure Switch (Allison® MD) | Internal to the automatic transmission | -- | -- |
Camshaft Position (CMP) Sensor | On the back end of the cylinder head | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Chime Module | Under the passenger seat, at the front, mounted on the back of the seat stand cover | ||
Cigar Lighter | In the center of the I/P, right of the radio | ||
Cigar Lighter Lamp | In the center of the I/P, right of the radio | ||
Clearance Lamp - Left | On top of the roof, on the forward left outboard side of the cab | ||
Clearance Lamp - Right | On top of the roof, on the forward right outboard side of the cab | ||
Clutch Pedal Position (CPP) Switch (M/T) | Behind the left side of the I/P, left of the steering column, on the clutch pedal support bracket, at the beginning of clutch pedal travel | Manual Transmission Component Views for the Medium Duty transmission | Manual Transmission Connector End Views for the Medium Duty transmission |
Clutch Start Switch (M/T) | Behind the left side of the I/P, left of the steering column, on the clutch pedal support bracket, at the end of clutch pedal travel | ||
Condenser Fan Motor | At the lower right front of the vehicle, in front of the tire, behind the A/C condenser | ||
Controller Area Network (CAN) Connector | On the lower left side of the I/P, left of the steering column, by the data link connector (DLC) | ||
Coolant Level Switch | Behind the cab at the cab bridge, on the bottom of the radiator surge tank | ||
Crankshaft Position (CKP) Sensor (A/T) | On the top center of the flywheel housing | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Crankshaft Position (CKP) Sensor (M/T) | On the lower left front of the flywheel housing | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Cruise Control Set/Coast Switch (K34) | On the left side of the steering column, controlled by the turn signal/multifunction lever, part of the turn signal/multifunction switch | -- | -- |
D Solenoid (C4 Clutch) (Allison® MD) | Internal to the automatic transmission | -- | -- |
Data Link Communications (DLC) Resistor 1 | In the front chassis harness, taped to the harness, near the left inboard frame rail next to the radiator fan | ||
Data Link Communications (DLC) Resistor 2 | In the lower I/P harness, under the passenger seat, near the chime module, taped to the harness | ||
Data Link Connector (DLC) | On the lower left side of the I/P, left of the steering column | ||
Differential Lock Control Valve (HNB, HPL or HPN) | On the front of the crossmember in front of the rear axle | ||
Differential Lock Switch (HNB, HPL or HPN) | In the top of the center console | ||
Dome Lamp | In the interior center of the roof | ||
Dome Lamp Diode | In the lower I/P harness, behind the lower center of the I/P, part of splice pack SP201, taped to the harness between the windshield wiper motor breakout and bulkhead, pins G2, H2, J2 and K2 | -- | -- |
Door Jamb Switch - Driver | In the left front door frame, at the rear face of the opening | ||
Driver Information Center (DIC) | On the left side of the I/P, left of the IPC | ||
DRL Engine Run Diode | In the lower I/P harness, behind the lower center of the I/P, part of splice pack SP201, taped to the harness between the windshield wiper motor breakout and the bulkhead connector C200, behind the radio, pins G1, H1, J1 and K1 | -- | -- |
DRL Indicator Diode | In the lower I/P harness, taped to the harness, behind the lower center of the I/P, part of splice pack SP201, between the windshield wiper motor breakout and the bulkhead, pins D1, E1 and F1 | -- | -- |
DRL Indicator Relay | In the lower I/P harness, behind the lower right side of the I/P, near the blower motor, on the relay bracket, position 4 | ||
DRL Off Relay | In the lower I/P harness, behind the lower right side of the I/P, near the blower motor, on the relay bracket, position 3 | ||
DRL On Diode | In the lower I/P harness, behind the lower center of the I/P, part of splice pack SP201, taped to the harness between the windshield wiper motor breakout and bulkhead, pins A1, B1, and C1 | -- | -- |
DRL On Relay | In the lower I/P harness, behind the lower right side of the I/P, near the blower motor, on the relay bracket, position 2 | ||
DRL Resistor | In the lower I/P harness, at the data link connector (DLC) breakout, behind the IPC | ||
Electronic Brake Control Module (EBCM) (JE3) | On the inboard left frame rail, behind the #1 crossmember | ||
Electronic Brake Control Module (EBCM) (JE4) | On the left side of the cab bridge, on the power steering reservoir mounting bracket | ||
Engine Control Module (ECM) | On top of the left front frame rail, forward of the cab bridge, left of the engine | Engine Controls Component Views for the 7.8L engine | Engine Control Module Connector End Views for the 7.8L engine |
Engine Coolant Temperature (ECT) Sensor | On the upper left side of the engine, in the cylinder head, below the coolant inlet | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Engine Oil Level Switch | On the lower left side of the engine, near the center, in the oil pan | Engine Controls Component Views for the 7.8L engine | |
Engine Oil Pressure (EOP) Sensor | On the lower right side of the engine, toward the front | Engine Controls Component Views for the 7.8L engine | |
Evaporator Temperature Sensor (C60) | At the front right of the exterior cab, behind the inspection panel, in the A/C evaporator housing | ||
Exhaust Brake Actuator Control Solenoid Valve (K40 or NPE) | On the inboard right frame rail, forward of the second crossmember, by the batteries | ||
Exhaust Brake Relay (K40 or NPE) | In the lower center of the I/P, behind the access panel, attached to the left side of relay block 2, in the center position | ||
Exhaust Brake Switch (K40) | On the center of the I/P, right of the IPC | ||
Exhaust Gas Recirculation (EGR) Valve | On the upper left side of the engine, center, on the intake manifold | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
F Solenoid (Lockup) (Allison® MD) | Internal to the automatic transmission | -- | -- |
Fuel Heater (C30) | On the lower left side of the engine, part of the fuel filter | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Fuel Heater Relay (C30) | In the lower I/P harness, behind the lower right side of the I/P, near the blower motor, on the relay bracket, position 5 | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Fuel Injector 1 | On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 1 | Engine Controls Component Views for the 7.8L engine | -- |
Fuel Injector 2 | On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 2 | Engine Controls Component Views for the 7.8L engine | -- |
Fuel Injector 3 | On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 3 | Engine Controls Component Views for the 7.8L engine | -- |
Fuel Injector 4 | On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 4 | Engine Controls Component Views for the 7.8L engine | -- |
Fuel Injector 5 | On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 5 | Engine Controls Component Views for the 7.8L engine | -- |
Fuel Injector 6 | On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 6 | Engine Controls Component Views for the 7.8L engine | -- |
Fuel Rail Pressure (FRP) Sensor | On the upper left side of the engine, on the bottom of the fuel rail | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Fuel Sender (NG7, NJ7, NK6, NJ8, NNQ or NNV) | On the outboard side of the left frame rail, in the top of the fuel tank | ||
Fuel Sender (NK8 or NNW) | On the outboard side of the right frame rail, in the top of the fuel tank | ||
Fuel Sender - Secondary (NG7, NJ7, NJ8 or NNQ) | On the outboard side of the right frame rail, in the top of the fuel tank | ||
Fuel Temperature Sensor | On the lower left side of the engine, at the rear, on the fuel injection pump | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Fuse Block - I/P - 1 | In the right top of the I/P, under the access panel | ||
Fuse Block - I/P - 2 | In the right top of the I/P, under the access panel | ||
Fuse Block - 1 | Behind the cab at the outboard left frame rail, under a cover, on top of the front chassis harness fuse block bracket, in the fuse box, rear | ||
Fuse Block - 2 | Behind the cab at the outboard left frame rail, under a cover, on top of the front chassis harness fuse block bracket, in the fuse box, front | ||
Fusible Link 1 | In the front chassis harness, from the positive battery ring terminal to C402 | -- | |
Fusible Link 2 | In the front chassis harness, from the positive battery ring terminal to C402 | -- | |
Fusible Link 3 | In the front chassis harness, from the positive battery ring terminal to C400 | -- | |
Fusible Link 4 | In the front chassis harness, from the positive battery ring terminal to C400 | -- | |
G Solenoid (Allison® MD) | Internal to the automatic transmission | -- | -- |
Generator | At the right side of the engine | ||
Glow Plug 1 | On the upper left side of the engine, in the cylinder head, at cylinder 1 | Engine Controls Component Views for the 7.8L engine | -- |
Glow Plug 2 | On the upper left side of the engine, in the cylinder head, at cylinder 2 | Engine Controls Component Views for the 7.8L engine | -- |
Glow Plug 3 | On the upper left side of the engine, in the cylinder head, at cylinder 3 | Engine Controls Component Views for the 7.8L engine | -- |
Glow Plug 4 | On the upper left side of the engine, in the cylinder head, at cylinder 4 | Engine Controls Component Views for the 7.8L engine | -- |
Glow Plug 5 | On the upper left side of the engine, in the cylinder head, at cylinder 5 | Engine Controls Component Views for the 7.8L engine | -- |
Glow Plug 6 | On the upper left side of the engine, in the cylinder head, at cylinder 6 | Engine Controls Component Views for the 7.8L engine | -- |
Glow Plug Bus 1 | On the upper left side of the engine, on the cylinder head, connects glow plugs 1, 2 and 3 to glow plug bus 2 | -- | -- |
Glow Plug Bus 2 | On the upper left side of the engine, on the cylinder head, connects glow plugs 4, 5 and 6 to glow plug bus 1 | -- | -- |
Glow Plug Relay | Behind the left side of the I/P, attached to the inspection panel release mounting bracket | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Hazard Switch | On the right side of the steering column, controlled by the multifunction lever, part of the turn signal/multifunction switch | -- | -- |
Headlamp - High Beam - Left | On the left front of the cab | ||
Headlamp - High Beam - Right | On the right front of the cab | ||
Headlamp - Low Beam - Left | On the left front of the cab | ||
Headlamp - Low Beam - Right | On the right front of the cab | ||
Headlamp Dimmer Switch | On the left side of the steering column, controlled by the turn signal/multifunction lever, part of the turn signal/multifunction switch | -- | -- |
Headlamp Switch | On the left side of the steering column, controlled by the turn signal/multifunction lever, part of the turn signal/multifunction switch | -- | -- |
High Idle Switch (UF3) | On the center of the I/P, right of the IPC | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Horn (w/o U08) | On the front of the vehicle, behind the left side of the front bumper impact bar | ||
Horn, A-Note (U08) | On the front of the vehicle, behind the left side of the front bumper impact bar | ||
Horn, F-Note (U08) | On the front of the vehicle, behind the left side of the front bumper impact bar | ||
Horn Switch | In the steering column, under the steering wheel horn cap and cover assembly, part of the turn signal/multifunction switch | -- | |
HVAC Control Assembly | In the center of the I/P, above the radio | ||
Hydromax® Fuse (JE3) | In the front chassis harness, above the left frame rail, on the cab bridge harness bracket, below the coolant reservoir | ||
I/P Dimmer Switch | On the left side of the I/P, in the instrument panel cluster (IPC) | ||
Identification (ID) Lamp - Center | On top of the roof, on the forward center of the cab | ||
Identification (ID) Lamp - Left | On top of the roof, on the forward left side of the cab, the inboard lamp | ||
Identification (ID) Lamp - Right | On top of the roof, on the forward right side of the cab, the inboard lamp | ||
Ignition Switch | On the right side of the steering column, behind the steering wheel assembly | ||
Instrument Panel Cluster (IPC) | On the left side of the I/P | ||
Low Air Pressure Switch - Primary (JE4) | Inboard of the left frame rail, on the front end of the front axle (primary) service (air supply) reservoir | ||
Low Air Pressure Switch - Secondary (JE4) | On the left end of the rear axle (secondary) service (air supply) reservoir, inboard of the left frame rail | ||
Low Air Pressure Switch (JE3 and K16 or JE4 and KK3) | Inboard of the left frame rail, on the front end of the primary air supply reservoir | ||
Low Air Pressure Switch (JE3 and K16) | Inboard of the left frame rail, on the front end of the primary air supply reservoir | ||
Manifold Absolute Pressure (MAP) Sensor | On the upper left side of the engine, on the top rear of the intake manifold air inlet elbow | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Marker Lamp Switch (JE4 and RQ2 and U86 or JE4 and RQ3) | On the center of the I/P, right of the IPC | ||
Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor | By the outboard right frame rail, behind the air cleaner, on the upper front of the air intake elbow | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Mode Actuator | Behind the lower right side of the I/P, on the bottom of the blower case | ||
Neutral Relay (Allison® MD) | In the transmission cab harness, under the passenger seat, on the top left front edge of the seat bracket, position 2 | Engine Electrical Connector End Views or Automatic Transmission Related Connector End Views for the Allison transmission | |
Oil Level Sensor (Allison® MD) | Internal to the automatic transmission | -- | -- |
Outside Heated Mirror Switch (DNN) | On the center of the I/P, right of the IPC | ||
Outside Rearview Mirror - Driver | On the exterior side of the left door | Lighting Systems Component Views or | Lighting Systems Connector End Views or |
Outside Rearview Mirror - Passenger | On the exterior side of the right door | Lighting Systems Component Views or | Lighting Systems Connector End Views or |
Overdrive (OD) Defeat Switch (Allison® LCT) | On the center of the I/P, right of the IPC | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission |
Overdrive Diode (Allison® LCT) | In the transmission cab harness, under the passenger seat, near the transmission control module (TCM), taped to the harness breakout near the TCM | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission |
Park Brake Indicator Diode (JE3) | In the lower I/P harness, behind the lower center of the I/P, part of park brake indicator/park brake switch diode, taped to the harness between the windshield wiper motor breakout and bulkhead connector C200, behind the radio, pins A and B | -- | -- |
Park Brake Indicator/Park Brake Switch Diode (JE3) | In the lower I/P harness, behind the lower center of the I/P, taped to the harness between the windshield wiper motor breakout and bulkhead connector C200, behind the radio | ||
Park Brake Relay | In the lower I/P harness, behind the lower right side of the I/P, near the blower motor, on the relay bracket, position 1 | ||
Park Brake Switch (JE3) | In the center console, on the park brake lever bracket | Lighting Systems Connector End Views or | |
Park Brake Switch (JE4) | In the center of the I/P, below the radio | Lighting Systems Connector End Views or | |
Park Brake Switch Diode (JE3) | In the lower I/P harness, behind the lower center of the I/P, part of park brake indicator/park brake switch diode, taped to the harness between the windshield wiper motor breakout and bulkhead connector C200, behind the radio, pins A and B | -- | -- |
Park/Neutral Position (PNP) Switch (Allison® LCT) | On the lower left side of the transmission | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission or |
Park/Neutral Position (PNP) Switch (Allison® MD) | Internal to the automatic transmission | -- | -- |
Park/Turn Signal Lamp - LF | On the front of the vehicle, above the left front bumper, mounted to a bracket | ||
Park/Turn Signal Lamp - RF | On the front of the vehicle, above the right front bumper, mounted to a bracket | ||
Power Brake (P/B) Booster Fluid Flow Switch (JE3) | At the front of the vehicle, behind the left side of the front crossmember, on the brake master cylinder | ||
Power Brake (P/B) Booster Pump Motor (JE3) | At the front of the vehicle, behind the left side of the front crossmember, on the brake master cylinder | ||
Power Brake (P/B) Booster Pump Relay (JE3) | In the front chassis harness, above the left frame rail, on the cab bridge harness bracket, below the coolant reservoir | ||
Power Take-Off Switch (PTO) | On the center of the I/P, right of the IPC | ||
Power Take-Off Switch Diode | In the lower I/P harness, behind the lower center of the I/P, part of splice pack SP213, taped to the harness between the windshield wiper motor breakout and bulkhead, pins B and C | -- | -- |
PTO Relay | In the lower center of the I/P, behind the access panel, attached to the left side of relay block 2, in the top position | ||
PTO Switch Diode | In the lower I/P harness, behind the lower center of the I/P, part of auto cruise switch/PTO switch diode, taped to the harness between the windshield wiper motor breakout and bulkhead connector C200, behind the radio, pins B and C | -- | -- |
Pressure Control (PC) Solenoid Valve A (Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission |
Pressure Control (PC) Solenoid Valve B (Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission |
Pressure Switch C (Allison® LCT) | Internal to the automatic transmission, on the pressure switch manifold (PSM) | -- | -- |
Pressure Switch D (Allison® LCT) | Internal to the automatic transmission, on the pressure switch manifold (PSM) | -- | -- |
Pressure Switch E (Allison® LCT) | Internal to the automatic transmission, on the pressure switch manifold (PSM) | -- | -- |
Pressure Switch Manifold (PSM) (Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission |
Pressure Switch R (Allison® LCT) | Internal to the automatic transmission, on the pressure switch manifold (PSM) | -- | -- |
Radio (UM6 or UM7) | In the center of the I/P, below the HVAC control assembly | ||
Rear Axle Driver Control Switch - Two Speed (HPZ and A/T) | On the center of the I/P, right of the IPC | ||
Rear Axle Driver Control Switch - Two Speed (HPZ and M/T) | In front of the center console on the transmission shift lever | ||
Rear Axle Shift Motor - Two Speed (HPZ) | On the front of the rear axle, on the differential | ||
Rear Axle Shift Relay - Two Speed (HPZ) | On the front of the crossmember in front of the rear axle | ||
Rear Compartment Lamp Relay (Z89) | In the lower center of the I/P, behind the access panel, attached to the left side of relay block 2, in the bottom position | ||
Rear Compartment Lamp Switch (Z89) | On the left side of the I/P, left of the IPC and below the driver information center (DIC) | ||
Recirculation Actuator | Behind the lower right side of the I/P, near the blower motor, on the right side of the HVAC module | ||
Relay Block 1 | In the right top of the I/P, under the access panel | ||
Relay Block 2 | In the lower center of the I/P, behind the access panel | ||
Reverse Relay (Allison® MD and UZF) | In the transmission cab harness, under the passenger seat, on the top center of the seat bracket, position 1 | ||
Serial Data Gateway (SDG) Module (JE4 or JE3 w/Allison® MD) | Under the passenger seat, near the front, mounted on the top of the transmission control module (TCM) mounting bracket | ||
Shift Solenoid C (Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission |
Shift Solenoid D (Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission |
Shift Solenoid E (Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission |
Speaker - Left | On the upper left front of the I/P | ||
Speaker - Right | On the upper right front of the I/P | ||
Starter | On the lower right side of the engine | -- | |
Starter Relay | Behind the cab at the outboard left frame rail, on the outboard rear of the front chassis harness fuse block bracket | ||
Starter Solenoid | On the lower right side of the engine, part of the starter | -- | -- |
Stop Lamp Relay | In the lower I/P harness, behind the lower right side of the I/P, near the blower motor, on the relay bracket, position 6 | ||
Stop Lamp Switch (JE3) | Behind the left side of the I/P, right of the steering column, at the top of the brake pedal support bracket | Lighting Systems Connector End Views or | |
Stop Lamp Switch (JE4) | On the left side of the exterior bulkhead, under the brake pedal, on the air brake application valve | Lighting Systems Connector End Views or | |
Suction Control Valve (SCV) | On the lower left side of the engine, at the rear, on the fuel injection pump | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Tail Lamp Assembly - Left | At the rear of the left frame rail | ||
Tail Lamp Assembly - Right | At the rear of the right frame rail | ||
Tail/Stop and Turn Signal Lamp - Left | At the rear of the left frame rail, part of the tail lamp assembly - left | -- | -- |
Tail/Stop and Turn Signal Lamp - Right | At the rear of the right frame rail, part of the tail lamp assembly - right | -- | -- |
Thermo Diode | In the lower I/P harness, behind the lower center of the I/P, part of splice pack SP201, taped to the harness between the windshield wiper motor breakout and bulkhead, pins D2, E2 and F2 | -- | -- |
Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve F (Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission |
Traction Control Indicator Resistor (NW9) | In the lower I/P harness, taped to the C200 main bulkhead connector breakout, above the accelerator pedal | Antilock Brake System Component Views or | Antilock Brake System Connector End Views or |
Traction Control Switch (NW9) | On the center of the I/P, right of the IPC | Antilock Brake System Component Views or | Antilock Brake System Connector End Views or |
Traction Control Valve (JE4 and NW9) | On the right side of the crossmember forward of the rear axle | ||
Tractor Receptacle (JE4 and RQ3) | Behind the cab, attached to the frame bracket and pogo stick | ||
Tractor/Trailer Plug (JE4 and RQ3 and JYV and VPG) | Behind the cab, attached to the frame bracket and pogo stick | ||
Trailer Receptacle (JE4 and RQ2 and U86 or JE4 and RQ3) | Attached to rear crossmember | ||
Trailer Stop Lamp Relay (JE4, RQ2 and U86 or JE4 and RQ3) | On the left side of the cab bridge, on the relay bracket on the front of the electronic brake control module (EBCM) | ||
Trailer Stop Lamp Switch (JE4 and RQ2 and U86 or JE4 and RQ3) | On the left side of the center console housing | ||
Transmission Control Module (TCM) (Allison® LCT or MD) | Under the passenger seat, mounted under the TCM mounting bracket | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission |
Transmission Fluid Temperature (TFT) Sensor (Allison® LCT) | Internal to the automatic transmission, on the pressure switch manifold (PSM) | -- | -- |
Transmission Fluid Temperature (TFT) Sensor (Allison® MD) | Internal to the automatic transmission | -- | -- |
Turbine Shaft Speed (TSS) Sensor (Allison® LCT) | On the upper left side of the transmission, behind the transmission bell housing | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission |
Turbine Shaft Speed (TSS) Sensor (Allison® MD) | Internal to the automatic transmission | -- | -- |
Turbocharger Vane Position (TVP) Control Solenoid Valve | At the right side of the engine, on the turbocharger behind the intake impeller housing | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Turbocharger Vane Position (TVP) Sensor | At the right side of the engine, on the top center of the turbocharger | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine |
Turn Signal and Marker Lamp Assembly - Left | In the forward bottom edge of the left door | ||
Turn Signal and Marker Lamp Assembly - Right | In the forward bottom edge of the right door | ||
Turn Signal/Hazard Flasher Module | Behind the lower right side of the I/P, left of the blower motor | ||
Turn Signal/Multifunction Switch | In the steering column, behind the steering wheel assembly | ||
Vehicle Speed Sensor (VSS) | On the transmission tailshaft housing | Manual Transmission Component Views for the Medium Duty transmission or Automatic Transmission Electronic Component Views for the Allison transmission | Manual Transmission Connector End Views for the Medium Duty transmission or Automatic Transmission Related Connector End Views for the Allison transmission |
Water-In-Fuel Sensor (NWB) | Behind the cab at the outboard left frame rail and outboard of the fuse box, on the bottom of the fuel/water separator | ||
Wheel Speed Sensor (WSS) - LF (JE3) | At the top rear of the left front brake caliper mounting plate | ||
Wheel Speed Sensor (WSS) - LF (JE4) | At the top of the left front brake backing plate | ||
Wheel Speed Sensor (WSS) - LR (JE3) | At the top rear of the left rear brake caliper mounting plate | ||
Wheel Speed Sensor (WSS) - LR (JE4) | At the top of the left rear brake backing plate | ||
Wheel Speed Sensor (WSS) - LR Middle (JE4 and HPE) | At the top of the left rear middle brake backing plate | ||
Wheel Speed Sensor (WSS) - RF (JE3) | At the top rear of the right front brake caliper mounting plate | ||
Wheel Speed Sensor (WSS) - RF (JE4) | At the top of the right front brake backing plate | ||
Wheel Speed Sensor (WSS) - RR (JE3) | At the top rear of the right rear brake caliper mounting plate | ||
Wheel Speed Sensor (WSS) - RR (JE4) | At the top of the right rear brake backing plate | ||
Wheel Speed Sensor (WSS) - RR Middle (JE4 and HPE) | At the top of the right rear middle backing plate | ||
Window Motor | In the right door, on the window regulator | ||
Window Switch - Driver | On the top of the left door panel | ||
Window Switch - Passenger | On the top of the right door panel | ||
Windshield Washer Fluid Pump | At the front left of the exterior cab, behind the inspection panel on the windshield washer reservoir | ||
Windshield Washer Switch | On the right side of the steering column, the button at the end of the multifunction lever, part of the turn signal/multifunction switch | -- | -- |
Windshield Wiper Motor | At the front left center of the exterior cab, behind the inspection panel | ||
Windshield Wiper Switch | On the right side of the steering column, controlled by the multifunction lever, part of the turn signal/multifunction switch | -- | -- |
C100 (12 cavities) | Front chassis harness to the upfitter auxiliary wiring harness, taped to the harness, on the left inboard frame rail, forward of the second crossmember | ||
C101 (2 cavities - U08) | Turn signal harness to the horn harness, behind the left side of the front bumper impact bar | ||
C103 (10 cavities) | Front chassis harness to the upfitter remote transmission control harness, taped to the harness, on the left inboard frame rail, forward of the second crossmember | ||
C104 (10 cavities) | Front chassis harness to the upfitter remote PTO control harness, taped to the harness, on the left inboard frame rail, by the ECM | ||
C105 (10 cavities) | Turn signal harness to the front chassis harness, on the left top of the first crossmember, below the grille | ||
C106 (6 cavities - PTO) | Front chassis harness to the upfitter remote PTO harness, taped to the harness, on the left inboard frame rail, forward of the second crossmember | ||
C108 (16 cavities - A/T) | Transmission cab harness to the front chassis harness, behind the front bumper step, on top of the front bumper impact bar, in the transmission controls harness electrical connector box | ||
C109 (16 cavities - A/T) | Transmission cab harness to the front chassis harness, behind the front bumper step, on top of the front bumper impact bar, in the transmission controls harness electrical connector box | ||
C110 (6 cavities - Allison® LCT) | Transmission cab harness to the front chassis harness, behind the front bumper step, on top of the front bumper impact bar, in the transmission controls harness electrical connector box | ||
C111 (6 cavities) | Front chassis harness to the engine harness, top of the left frame rail, by the ECM | ||
C115 (6 cavities - Allison® LCT) | Engine chassis harness to the front chassis harness, on the front left side of the engine on the top of the harness connector bracket | ||
C115 (12 cavities - Allison® MD or M/T) | Engine chassis harness to the front chassis harness, on the front left side of the engine on the top of the harness connector bracket, under the air intake tube | ||
C116 (16 cavities - A/T) | Engine chassis harness to the front chassis harness, on the front left side of the engine on the side of the harness connector bracket, under the air intake tube | ||
C117 (16 cavities - Allison® LCT) | Engine chassis harness to the front chassis harness, on the front left side of the engine on the side of the harness connector bracket, under the air intake tube | ||
C118 (2 cavities) | Engine chassis harness to the front chassis harness, on the front left side of the engine on the top of the harness connector bracket, under the air intake tube | ||
C120 (4 cavities) | Front chassis harness to the upfitter PTO throttle position sensor harness, taped to the harness, taped to the harness, on the left inboard frame rail, forward of the second crossmember | ||
C122 (8 cavities) | Engine harness to the engine/injector harness connector adapter 1 to injector harness 1, on the upper left side of the cylinder head between injector 2 and 3 | ||
C123 (8 cavities) | Engine harness to the engine/injector harness connector adapter 2 to injector harness 2, on the upper left side of the cylinder head between injector 4 and 5 | ||
C125 (1 cavity) | Engine chassis harness to the front chassis harness, on the front left side of the engine on the side of the harness connector bracket, under the air intake tube | ||
C175 (20 cavities - Allison® LCT) | Engine chassis harness to the automatic transmission, on the right rear end of the automatic transmission | Automatic Transmission Inline Harness Connector End View for the Allison transmission | |
C175 (31 cavities - Allison® MD) | Engine chassis harness to the automatic transmission, on the right rear side of the automatic transmission | Automatic Transmission Inline Harness Connector End View for the Allison transmission | |
C200 (56 cavities) | Lower I/P harness to the front chassis harness, at the front left center of the exterior cab, behind the inspection panel, in the left side of the cab interface electrical connector box | ||
C201 (6 cavities) | Lower I/P harness to upfitter harness, at the lower center of the I/P, on the floor, behind the access panel | ||
C202 (56 cavities) | Lower I/P harness to the front chassis harness, at the front left center of the exterior cab, behind the inspection panel, in the right side of the cab interface electrical connector box | ||
C203 (1 cavity - JE4) | Lower I/P harness to the lower I/P harness, in the right center of the I/P, under the access panel, taped to the harness near relay block 2 | ||
C204 (3 cavities) | Front chassis harness to the lower I/P harness, at the front left center of the exterior cab, behind the inspection panel, in the upper right corner of the cab interface electrical connector box | ||
C205 (1 cavity) | Front chassis harness to the lower I/P harness, at the front left center of the exterior cab, behind the inspection panel, in the lower left corner of the cab interface electrical connector box | ||
C207 (1 cavity) | Front chassis harness to the lower I/P harness, at the front left center of the exterior cab, behind the inspection panel, in the upper left corner of the cab interface electrical connector box | ||
C208 (6 cavities) | Lower I/P harness to the roof harness, behind the right side of the I/P | ||
C209 (6 cavities - Upfitter Connector) | Lower I/P harness to the upfitter harness, under the left side of the I/P, left of the steering column, taped to the harness by the data link connector (DLC) | ||
C210 (14 cavities) | Floor harness to the lower I/P harness, in the lower center of the I/P, below the access panel | ||
C211 (8 cavities) | Lower I/P harness to the dash harness, at the front right side of the exterior cab, behind the inspection panel | ||
C212 (84 cavities) | Lower I/P harness to the upper I/P harness, at the left center of the I/P above the accelerator pedal, behind the knee bolster | ||
C213 (2 cavities) | Floor harness to the auxiliary power harness, under the left side of the center console housing, at the top | ||
C214 (2 cavities - JE4) | Upper I/P harness to the air brake pressure gage lamp harness, at the upper left side of the I/P | ||
C215 (22 cavities) | Lower I/P harness to the transmission cab harness, at the lower center of the I/P, on the floor, behind the access panel | ||
C215 Shunt (22 cavities - M/T) | Lower I/P harness to the lower I/P harness shunt, at the lower center of the I/P, on the floor, behind the access panel | ||
C216 (2 cavities) | Lower I/P harness to the C216 shunt (2 cavities - DNA), in the right center of the I/P, under the access panel, taped to the harness near relay block 2 | ||
C216 Shunt (2 cavities - DNA) | Lower I/P harness, in the right center of the I/P, under the access panel, taped to the harness near relay block 2 | ||
C219 (6 cavities - Allison® MD) | Floor harness to the transmission cab harness, near the center console | ||
C221 (1 cavity) | Radio antenna coaxial cable to the antenna coaxial cable, below the left side of the I/P, at the kick panel | -- | |
C400 (2 cavities) | Battery fusible links to the front chassis harness, near the positive battery terminal | ||
C402 (2 cavities) | Battery fusible links to the front chassis harness, near the positive battery terminal | ||
C403 (16 cavities) | Rear chassis harness to the front chassis harness, at the inboard left frame rail, forward of the second crossmember | ||
C404 (4 cavities - w/o HNB) | Rear chassis harness to the two speed rear axle harness, inboard of the right frame rail, forward of the rear axle | ||
C405 (16 cavities) | Rear chassis harness to the front chassis harness, at the inboard left frame rail, forward of the second crossmember | ||
C406 (8 cavities - JE4 and RQ2 and U86 or JE4 and RQ3) | Tractor/trailer harness to the front chassis harness to the, at the right frame rail, inboard of the batteries | ||
C407 (6 cavities - M/T) | Manual transmission harness to the engine chassis harness, at the right side of the transmission | ||
C411 (6 cavities) | Front chassis harness to the fuel tank harness, at the inboard left frame rail, forward of the second crossmember | ||
C421 (3 cavities - K16) | Front chassis harness to the air compressor harness, behind the cab at the outboard left frame rail, inboard of and above the fuse block assembly enclosure, on the air compressor bracket | ||
C501 (8 cavities) | Lower I/P harness to the left door harness, forward of the door | ||
C503 (2 cavities) | Left door harness to the left outside rearview mirror connector, in the interior side of the left door, behind the door panel | ||
C601 (8 cavities) | Lower I/P harness to the right door harness, forward of the door | ||
C603 (2 cavities) | Right outside rear view mirror connector to the right door harness, in the interior side of the right door, behind the door panel | ||
G100 | On the outboard side of the right frame rail forward of the RF upper shock absorber mount, to the engine | -- | |
G101 | On the right side of the engine, lower front, to the outboard frame rail | -- | |
G102 | In the engine harness, on the lower left side of the engine, forward of the oil filter, above the motor mount | -- | |
G103 | In the fuel heater pigtail, on the left side of the engine, on the back of the fuel filter | -- | |
G107 | In the front chassis harness, on the right frame rail above the front spring perch | -- | |
G108 (JE3) | At the front of the vehicle, in the power brake booster pump pigtail, left of the brake master cylinder | -- | |
G114 | Ground wire, on the outboard right front frame rail to the right front of the cab | -- | |
G208 | In the lower I/P harness, upper right side of the I/P, on the I/P support bracket | -- | |
G209 | In the lower I/P harness, upper right side of the I/P, on the I/P support bracket | -- | |
G210 | In the lower I/P harness and in the right door harness, on the right lower exterior A-pillar behind the trim panel | -- | |
G214 | On the right front of the cab to the outboard right front frame rail | -- | |
G400 | On the outboard side of the right frame rail, from the negative battery cable and from the ground cable/ground block (SP400) | -- | |
G402 (JE4 and RQ2 and U86 or JE4 and RQ3) | At the rear inboard side of the right frame rail, from the tractor-trailer harness | -- | |
G410 (NJ7 or NJ8 or NK8) | At the outboard side of the right frame rail on top of the fuel tank | -- | |
G411 (NJ7 or NJ8 or w/o NK8) | At the outboard side of the left frame rail on top of the fuel tank | -- | |
G501 | In the left door harness, on the left lower exterior A-pillar behind the trim panel | -- | |
G502 | In the left door harness, in the left door | -- | |
G602 | In the right door harness, in the right door | -- | |
S100 (U08) | In the horn harness | -- | -- |
S101 (U08) | In the horn harness | -- | -- |
S102 | In the turn signal harness | -- | -- |
S103 (JE3) | In the front chassis harness | -- | -- |
S104 | In the front chassis harness | -- | -- |
S105 | In the turn signal harness | -- | -- |
S106 | In the engine harness | -- | -- |
S107 | In the front chassis harness | -- | -- |
S108 | In the front chassis harness | -- | -- |
S109 | In the front chassis harness | -- | -- |
S110 | In the front chassis harness | -- | -- |
S111 (JE3) | In the front chassis harness | -- | -- |
S112 | In the front chassis harness | -- | -- |
S113 | In the front chassis harness | -- | -- |
S114 | In the front chassis harness | -- | -- |
S115 | In the front chassis harness | -- | -- |
S116 | In the front chassis harness | -- | -- |
S117 | In the lower I/P harness | -- | -- |
S118 | In the engine harness | -- | -- |
S119 | In the engine harness | -- | -- |
S120 | In the front chassis harness | -- | -- |
S121 | In the front chassis harness | -- | -- |
S122 | In the front chassis harness | -- | -- |
S123 | In the front chassis harness | -- | -- |
S125 | In the front chassis harness | -- | -- |
S126 | In the front chassis harness | -- | -- |
S127 | In the front chassis harness | -- | -- |
S128 | In the front chassis harness | -- | -- |
S129 (JE4) | In the front chassis harness | -- | -- |
S130 (Allison® MD) | In the front chassis harness | -- | -- |
S131 | In the front chassis harness | -- | -- |
S132 | In the front chassis harness | -- | -- |
S133 | In the front chassis harness | -- | -- |
S151 (Allison® LCT) | In the front chassis harness | -- | -- |
S152 | In the front chassis harness | -- | -- |
S158 | In the front chassis harness | -- | -- |
S159 | In the front chassis harness | -- | -- |
S160 | In the engine chassis harness | -- | -- |
S167 | In the engine harness | -- | -- |
S168 | In the engine harness | -- | -- |
S174 (Allison® LCT) | In the internal transmission harness, approximately 19.5 cm (7.7 in) from C175 | -- | -- |
S175 (Allison® LCT) | In the internal transmission harness, approximately 10.5 cm (4.1 in) from C175 | -- | -- |
S176 (A/T) | In the front chassis harness | -- | -- |
S177 (A/T) | In the front chassis harness | -- | -- |
S182 | In the front chassis harness | -- | -- |
S184 | In the engine harness | -- | -- |
S185 | In the engine harness | -- | -- |
S186 | In the engine harness | -- | -- |
S191 | In the engine harness | -- | -- |
S192 | In the engine harness | -- | -- |
S193 | In the engine harness | -- | -- |
S194 | In the engine chassis harness | -- | -- |
S195 | In the engine harness | -- | -- |
S196 | In the engine chassis harness | -- | -- |
S197 | In the engine chassis harness | -- | -- |
S198 | In the engine harness | -- | -- |
S200 | In the lower I/P harness | -- | -- |
S201 | In the lower I/P harness | -- | -- |
S202 (A/T) | In the transmission cab harness | -- | -- |
S203 (Allison® LCT) | In the transmission cab harness | -- | -- |
S204 | In the lower I/P harness | -- | -- |
S205 | In the lower I/P harness | -- | -- |
S206 | In the lower I/P harness | -- | -- |
S207 | In the lower I/P harness | -- | -- |
S208 | In the lower I/P harness | -- | -- |
S209 | In the lower I/P harness | -- | -- |
S211 | In the upper I/P harness | -- | -- |
S212 | In the lower I/P harness | -- | -- |
S213 | In the lower I/P harness | -- | -- |
S214 | In the lower I/P harness | -- | -- |
S215 | In the lower I/P harness | -- | -- |
S216 | In the lower I/P harness | -- | -- |
S217 | In the lower I/P harness | -- | -- |
S218 | In the lower I/P harness | -- | -- |
S219 | In the lower I/P harness | -- | -- |
S220 | In the lower I/P harness | -- | -- |
S221 (Allison® LCT) | In the upper I/P harness | -- | -- |
S222 | In the lower I/P harness | -- | -- |
S223 | In the lower I/P harness | -- | -- |
S224 (Allison® LCT) | In the transmission cab harness | -- | -- |
S225 | In the lower I/P harness | -- | -- |
S227 | In the lower I/P harness | -- | -- |
S228 | In the lower I/P harness | -- | -- |
S229 | In the lower I/P harness | -- | -- |
S230 | In the lower I/P harness | -- | -- |
S231 | In the lower I/P harness | -- | -- |
S232 | In the lower I/P harness | -- | -- |
S233 | In the lower I/P harness | -- | -- |
S234 | In the lower I/P harness | -- | -- |
S235 | In the lower I/P harness | -- | -- |
S237 | In the lower I/P harness | -- | -- |
S238 (A/T) | In the lower I/P harness | -- | -- |
S239 | In the lower I/P harness | -- | -- |
S240 (HPZ) | In the lower I/P harness | -- | -- |
S241 (JE4 and RQ2 and U86 or JE4 and RQ3) | In the lower I/P harness | -- | -- |
S242 | In the lower I/P harness | -- | -- |
S245 | In the lower I/P harness | -- | -- |
S246 | In the lower I/P harness | -- | -- |
S247 | In the lower I/P harness | -- | -- |
S248 | In the lower I/P harness | -- | -- |
S252 | In the lower I/P harness | -- | -- |
S254 | In the lower I/P harness | -- | -- |
S255 | In the upper I/P harness | -- | -- |
S256 | In the lower I/P harness | -- | -- |
S257 | In the lower I/P harness | -- | -- |
S263 | In the upper I/P harness | -- | -- |
S264 | In the lower I/P harness | -- | -- |
S268 | In the upper I/P harness | -- | -- |
S269 | In the lower I/P harness | -- | -- |
S270 | In the transmission cab harness | -- | -- |
S271 | In the transmission cab harness | -- | -- |
S272 | In the transmission cab harness | -- | -- |
S273 | In the transmission cab harness | -- | -- |
S274 | In the transmission cab harness | -- | -- |
S275 | In the transmission cab harness | -- | -- |
S276 (Allison® MD) | In the transmission cab harness | -- | -- |
S277 (Allison® MD) | In the transmission cab harness | -- | -- |
S278 | In the lower I/P harness | -- | -- |
S280 | In the lower I/P harness | -- | -- |
S283 (Allison® MD) | In the transmission cab harness | -- | -- |
S284 | In the lower I/P harness | -- | -- |
S285 | In the lower I/P harness | -- | -- |
S286 | In the lower I/P harness | -- | -- |
S288 | In the lower I/P harness | -- | -- |
S295 | In the upper I/P harness | -- | -- |
S300 (Allison® MD) | In the transmission cab harness | -- | -- |
S301 | In the upper I/P harness, behind the upper left side of the I/P, taped to the harness between the IPC and driver information center (DIC) breakouts | -- | -- |
S302 | In the upper I/P harness, behind the upper left side of the I/P, taped to the harness between the IPC and driver information center (DIC) breakouts | -- | -- |
S303 | In the upper I/P harness, behind the upper left side of the I/P, taped to the harness between the IPC and driver information center (DIC) breakouts | -- | -- |
S304 | In the lower I/P harness, behind the lower center of the I/P, taped to the harness by the radio breakout | -- | -- |
S305 | In the lower I/P harness, behind the lower left side of the I/P, taped to the harness between the data link connector (DLC) and the CAN connector | -- | |
S306 (C60) | In the lower I/P harness | -- | -- |
S307 (C60) | In the lower I/P harness | -- | -- |
S308 (C60) | In the lower I/P harness | -- | -- |
S310 | In the lower I/P harness, behind the lower right side of the I/P | -- | -- |
S312 | In the lower I/P harness | -- | -- |
S313 | In the lower I/P harness | -- | -- |
S318 | In the lower I/P harness | -- | -- |
S319 | In the lower I/P harness | -- | -- |
S321 | In the lower I/P harness | -- | -- |
S333 | In the lower I/P harness | -- | -- |
S334 | In the lower I/P harness | -- | -- |
S335 | In the lower I/P harness | -- | -- |
S336 | In the lower I/P harness | -- | -- |
S344 | In the floor harness | -- | -- |
S345 | In the roof harness | -- | -- |
S348 | In the floor harness | -- | -- |
S349 | In the lower I/P harness | -- | -- |
S350 | In the lower I/P harness | -- | -- |
S358 | In the floor harness | -- | -- |
S359 | In the roof harness | -- | -- |
S360 | In the roof harness | -- | -- |
S365 | In the roof harness | -- | -- |
S366 | In the roof harness | -- | -- |
S367 | In the roof harness | -- | -- |
S368 | In the roof harness | -- | -- |
S378 | In the lower I/P harness | -- | -- |
S380 | In the upper I/P harness | -- | -- |
S386 | In the lower I/P harness | -- | -- |
S387 | In the upper I/P harness | -- | -- |
S402 | In the rear chassis harness | -- | -- |
S406 (JE4) | In the front chassis harness | -- | -- |
S411 (JE4) | In the front chassis harness | -- | -- |
S412 (JE4) | In the front chassis harness | -- | -- |
S413 (JE4) | In the rear chassis harness | -- | -- |
S414 (JE4) | In the rear chassis harness | -- | -- |
S416 | In the front chassis harness | -- | -- |
S418 (HPZ) | In the two speed rear axle harness | -- | -- |
S421 (K16) | In the air compressor harness | -- | -- |
S422 | In the front chassis harness | -- | -- |
S423 | In the front chassis harness | -- | -- |
S424 (JE4) | In the front chassis harness | -- | -- |
S500 | In the left door harness | -- | -- |
S600 | In the right door harness | -- | -- |
S900 | In the rear chassis harness | -- | -- |
S901 | In the rear chassis harness | -- | -- |
Splice Pack SP201 (33 cavities) | In the lower I/P harness, behind the lower center of the I/P, taped to the harness between the windshield wiper motor breakout and bulkhead connector C200, behind the radio | ||
Splice Pack SP205 (10 cavities) | In the upper I/P harness, behind the upper left side of the I/P, taped to the harness between the IPC and DIC breakouts | ||
Splice Pack SP206 (12 cavities) | In the lower I/P harness, under the passenger seat, near the chime module, taped to the harness, on the chime module breakout | ||
Splice Pack SP209 (6 cavities) | In the lower I/P harness, under the passenger seat, near the chime module, taped to the harness, on the chime module breakout | ||
Splice Pack SP212 (10 cavities) | In the lower I/P harness, behind the lower center of the I/P, taped to the harness by the radio breakout | ||
Splice Pack SP219 (6 cavities) | In the lower I/P harness, under the passenger seat, near the chime module, taped to the harness, on the chime module breakout | ||
Splice Pack SP230 (6 cavities - A/T) | In the transmission cab harness, under the passenger seat, behind the seat stand cover, near the transmission control module (TCM), taped to the harness breakouts to the TCM | ||
Splice Pack SP231 (6 cavities - A/T) | In the transmission cab harness, under the passenger seat, behind the seat stand cover, near the transmission control module (TCM), taped to the harness breakouts to the TCM | ||
Splice Pack SP400 (Ground Block) (6 cavities) | On the inboard side of the right frame rail, the ground block, part of the ground cable |
