GM Service Manual Online
For 1990-2009 cars only

Electrical Center Identification Views Label

Table 1: Underhood Fuse Block Details
Table 2: IP Fuse Block Detail

Underhood Fuse Block Details


Object Number: 669174  Size: MF

Underhood Fuse Block Details

Fuse/Circuit Breaker

Rating

Description

Maxi Fuses

INT BATT

50A

HDLP SW, AUX PWR, RDO BATT, CIGAR LTR, and CTSY LP Fuses

ABS

60A

Electronic Brake Control Module (EBCM)

IGN B

50A

Ignition and Start Switch

RAP

50A

Retained Accessory Power (RAP) Relay

IGN A

40A

Starter Relay and Ignition and Start Switch

STUD #2

30A

Not Used

Mini Fuses

TRL TRN

10A

Not Used

LT TRN

10A

Park and Turn Signal Lamp, LH Rear

BTSI

10A

Stop Lamp Switch and Transfer Case Shift Control Module

PARK LP

20A

Park Lamp Relay, Headlamp Grounding Relay, and Headlamp Switch

HVAC

30A

Blower Motor Relay

HAZ LP

20A

Multifunction Switch (Hazard)

TRR TRN

10A

Not Used

RT TRN

10A

Park and Turn Signal Lamp, RH Rear

TRCHMSL

10A

Not Used

VECHMSL

10A

High Mount Stop Lamp, and Cruise Control Module (CCM)

TRL B/U

10A

Not Used

ECM I

15A

Electronic Ignition Control Module (EICM), Powertrain Control Module (PCM) (2.2L only), Vehicle Control Module (VCM) (4.3L only), Crankshaft Position (CKP) Sensor, Central Sequential Fuel Injection (CSFI), Fuel Injectors 1-6 (4.3L only), and Ignition Coil (4.3L only)

LD LEV

25A

Not Used

VEH B/U

15A

Backup Lamps, RH/LH

ENG I

10A

Evaporative Emission Canister Purge Solenoid Valve (EVAP), Evaporative Emission Canister Control Valve (EVAP), Mass Air Flow (MAF) Sensor (4.3L), and Camshaft Position (CMP) Sensor (4.3L)

OXYSEN

20A

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1, Heated Oxygen Sensor (HO2S) Bank 1 Sensor 3 (4.3L only), Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (4.3L only)

RR PRK

10A

Rear License Plate Lamp, RH, Side Marker Lamp, RR, and Park and Turn Signal Lamp, RR

ECM B

20A

Fuel Pump Relay, Powertrain Control Module (PCM) (2.2L), Vehicle Control Module (VCM) (4.3L)

B/U LP

25A

Backup Lamp Switch (w/ M/T) or Park Neutral Position (PNP) and Backup Lamp Switch (w/ A/T)

IGN E

10A

A/C Compressor Relay, Secondary Air Injector Reactor (AIR) Relay (w/ California Emissions only)

LR PRK

10A

Rear License Plate Lamp, LH, Side Marker Lamp, LR, and Park and Turn Signal Lamp, LR

RR DEFOG

30A

Not Used

TRL PRK

10A

Not Used

LT HDLP

15A

Headlamp, LH Low Beam, and Daytime Running Lamp (DRL) Relay

HTD MIR

10A

Outside Rear View Mirror, RH/LH (Heating Element)

RT HDLP

15A

Headlamp, RH Low Beam, and Headlamp, RH High Beam

MIR/LKS

3A

Outside Rear View Mirror Switch, Door Lock and Side Window Switch, LH/RH

ATC

20A

Transfer Case Shift Control Module

A/C

10A

Not Used

FOG LP

15A

Daytime Running Lamps (DRL) Relay

TBC

10A

Body Control Module (BCM) and Multifunction Switch (Flash to Pass)

RT TURN

10A

Park and Turn Signal Lamp, RH, and Side Marker Lamp, RF

CRANK

10A

Transfer Case Shift Control Module, Clutch Pedal Position Switch (M/T Only), and Park/Neutral Position (PNP) and Backup Lamp Switch (A/T Only)

LT TURN

10A

Park and Turn Signal Lamp, LH, Side Marker Lamp, LF

FR PRK

10A

Park and Turn Signal Lamps, LH/RH, Side marker Lamps, LF/RF

W/W PMP

10A

Not Used

IGN C

20A

Ignition and Start Switch

STOP LP

20A

Stop Lamp Switch and High Mount Stop Lamp (CHMSL) Relay

HDLP W/W

15A

Not Used

HORN

15A

Horn, LH/RH

HTD SEAT

20A

Not Used

RR W/W

15A

Not Used

Micro Relays

F/PUMP

--

Fuel Pump and Fuel Injectors (2.2L)

DRL

--

Headlamp, LH High Beam

LIFT GLASS

--

Not Used

A/C

--

Not Used

FOG LP

--

Not Used

HORN

--

HORN Fuse

CHMSL

--

Multifunction Switch supplies the LT TURN, RT TURN, RT TRN, and LT TRN fuses

Mini Relays

STARTER

--

Starter Solenoid (Coil)

RR DEFOG

--

HTD MIR Fuse

HDLP PWR

--

RT HDLP, and LT HDLP Fuses

IP Fuse Block Detail


Object Number: 547722  Size: MF

IP Fuse Block Detail

Fuse No.

Fuse/Circuit Breaker

Rating

Description

1

--

--

Not Used

2

CIGAR LTR

15A

Cigar Lighter and Data Link Connector (DLC)

3

CRUISE

10A

Body Control Module (BCM), Cruise Control Module (CCM), Multifunction Switch (Cruise Control Switch)

4

GAUGES

10A

Body Control Module (BCM), and Instrument Cluster

5

PARK LP

10A

Body Control Module (BCM), Outside Rear View Mirror Switch, Door Lock and Side Window Switch LH/RH, Side Window Lockout Switch, and IP Ashtray Lamp

6

STR WHL ILLUM

2A

Not Used

7

HDLP SW

10A

Headlamp Switch

8

CTSY LP

10A

Courtesy Lamps, LH/RH Console, Inadvertent Power Lamp Relay, and Transfer Case Shift Control Module

9

HVAC

20A

Heater Controller (Non-A/C) and Heater and A/C Controller (w/ A/C)

10

TURN

20A

Multifunction Switch (Hazard Switch)

11

CLSTR

10A

Instrument Cluster, Powertrain Control Module (PCM) (2.2L), Vehicle Control Module (VCM) (4.3L), and Automatic Transmission

12

ILLUM

10A

Radio, Heater Controller (Non-A/C), Heater and A/C Controller (w/ A/C), Fog Lamp Switch, Supplemental Restraint IP Module Switch, Body Control Module (BCM), Transfer Case Select Switch and Instrument Cluster

13

AUX PWR

20A

Accessories Power Outlet, LH/RH

14

PWR LKS

15A

Door Lock Relay, Door Unlock Relay, and Driver Door Unlock Relay (w/ Power Door Locks)

15

4WD

10A

Vehicle Control Module (VCM), Transfer Case Shift Control Module, Transfer Case Shift Control Switch, Front Drive Axle Clutch Solenoid, and Four Wheel Drive Indicator Switch

16

SIR

15A

Supplemental Restraint IP Module Switch and Supplemental Restraint Sensing and Diagnostic Module (SDM)

17

FRT WPR

25A

Windshield Wiper Motor, and Multifunction Switch (Wiper Switch)

18

STR WHL RDO IGN

2A

Not Used

19

RDO BATT

15A

Radio and Instrument Cluster

20

AMPF

25A

Not Used

21

HVAC I

10A

Electric Actuator (Temperature), Heater Controller (non-A/C) and Heater and A/C Controller (w/ A/C)

22

ABS

10A

Stop Lamp Switch, and Electronic Brake Control Module (EBCM)

23

RR WPR

15A

Not Used

24

RDO IGN

10A

Radio

Electrical Center Identification Views Terminal Location View

Figure 1:

Underhood Fuse Block


Object Number: 547748  Size: LF
Figure 2:

Body Relay Block


Object Number: 547756  Size: LH