GM Service Manual Online
For 1990-2009 cars only

Information Sensors/Input Devices


Object Number: 830859  Size: LF
(1)Power Steering Pressure Switch
(2)Heated Oxygen Sensor 1 - HO2S 1
(3)Heated Oxygen Sensor 2- HO2S 2
(4)Fuel Tank Pressure (FTP) Sensor - FWD
(5)Fuel Tank Pressure (FTP) Sensor - AWD
(6)Engine Coolant Temperature (ECT) Sensor
(7)Mass Air Flow (MAF) Sensor
(8)Camshaft Position (CMP) Sensor
(9)Throttle Position (TP) Sensor
(10)PNP Switch, Automatic Transmission only
(11)Knock (KS) Sensor
(12)Crankshaft Position (CKP) Sensor

PCM Controlled Devices


Object Number: 830855  Size: LF
(1)EVAP Purge Solenoid
(2)Malfunction Indicator Lamp (MIL)
(3)EVAP Pressure Switching Solenoid - AWD
(4)EVAP Pressure Switching Solenoid - FWD
(5)Circuit Opening Relay - Fuel Pump Relay
(6)EVAP Vent Solenoid
(7)Idle Air Control (IAC) Valve
(8)Camshaft Position (CMP) Actuator Solenoid
(9)Fuel Injector
(10)Ignition Coil

Other Components - FWD


Object Number: 848127  Size: LF
(1)Powertrain Control Module (PCM)
(2)EVAP Service Port
(3)Data Link Connector (DLC)
(4)EVAP Canister
(5)Noise Filter, for ignition system
(6)EFI Relay

Other Components - AWD


Object Number: 830842  Size: LF
(1)Powertrain Control Module (PCM)
(2)EVAP Service Port
(3)Data Link Connector (DLC)
(4)EVAP Canister
(5)Noise Filter, for ignition system
(6)EFI Relay

Crankshaft Position (CKP) Sensor and Power Steering Pressure (PSP) Switch


Object Number: 392655  Size: MF
(1)Generator
(2)Crankshaft Position (CKP) Sensor
(3)Power Steering Pump
(4)Power Steering Pressure (PSP) Switch

ECT Sensor and Noise Filter


Object Number: 851358  Size: SH
(1)Engine Coolant Temperature (ECT) Sensor
(2)Noise Filter, for ignition system
(3)Upper Radiator Hose
(4)Engine Ground G104 and G105

Fuse Block-Underhood


Object Number: 831521  Size: MF
(1)EFI Relay
(2)Main Fuse
(3)EFI Fuse
(4)Fuse Block-Underhood

Instrument Panel (I/P) Components


Object Number: 848018  Size: MF
(1)Malfunction Indicator Lamp (MIL), Check Engine Lamp
(2)Powertrain Control Module (PCM)
(3)Fuse Block - Instrument Panel (I/P)
(4)Data Link Connector (DLC)

Top View of Fuse Block - Instrument Panel (I/P)


Object Number: 847988  Size: SH
(1)Circuit Opening Relay, Fuel Pump Relay
(2)Fuse Block - Instrument Panel (I/P)

Camshaft Position (CMP) Actuator Solenoid Valve and Filter


Object Number: 622392  Size: SH
(1)Camshaft Position (CMP) Actuator Solenoid Valve
(2)Camshaft Position (CMP) Actuator Solenoid Oil Filter

Ignition Coils


Object Number: 621682  Size: SH
(1)Ignition Coil 1
(2)Ignition Coil 2
(3)Ignition Coil 3
(4)Ignition Coil 4