GM Service Manual Online
For 1990-2009 cars only
Table 1: Underhood Accessory Wiring Junction Block Maxifuse® Application Table
Table 2: Fuse Block Application Table

Underhood Accessory Wiring Junction Block


Object Number: 612638  Size: LF

Underhood Accessory Wiring Junction Block Label


Object Number: 612639  Size: MF

Underhood Accessory Wiring Junction Block Maxifuse® Application Table

Fuse

Rating

Description

1-COOL FAN 2

30A

Coolant Fans

3-HEADLAMPS

60A

Circuit Breakers:

    â€¢ FRT HVAC HI BLWR Fuse (IP)
    â€¢ HEADLAMP Fuse (IP):
       - HAZARD
       - PASS KEY
       - STOP LAMP

4-BATT MAIN 2

60A

Circuit Breaker:

    â€¢ PWR HEATED SEAT/PSD Fuses (IP)
    â€¢ ELC/TRAILER
    â€¢ RR DEFOG/HTD MIRRORS
    â€¢ RR FOG LP
    â€¢ RR DEFOG LP

5-IGN MAIN 1

40A

Ignition Switch to Fuses (IP):

    â€¢ PCM/ABS
    â€¢ CAN VENT SOL
    â€¢ DRL
    â€¢ PCM/CRANK
    â€¢ IGN 1
    â€¢ SIR
    â€¢ T/SIG
    â€¢ CRUISE
    â€¢ PCM/PASS KEY/CLUSTER

6-COOL FAN 1

30A

Coolant Fans

7-BATT MAIN 1

60A

Fuses (IP):

    â€¢ CLUSTER BATT
    â€¢ CIGAR/DLC
    â€¢ CTSY LAMP
    â€¢ RAP RELAY
    â€¢ FRT PWR SCKT
    â€¢ PWR LOCK
    â€¢ PWR MIRROR
    â€¢ RIGHT REAR PWR SCKT

8-IGN MAIN 2

60A

Ignition Switch to Fuses (IP):

    â€¢ BCM PRGRM
    â€¢ RR WPR/WSHR
    â€¢ FRT/WPR/WSHR
    â€¢ MALL/CLUSTER
    â€¢ RAP RELAY
    â€¢ PWR OTR VENT
    â€¢ HVAC/DIC/DRL/HEATED SEAT
    â€¢ HVAC BLOWER
    â€¢ RR HVAC
    â€¢ TEMP CONT
    â€¢ PWR WDO Circuit Breaker

18-INJ

10A

Fuel Injectors 1-6

21-IGNI-UH

15A

    â€¢ Evaporative Emissions (EVAP) Canister Purge Solenoid Valve
    â€¢ Heated Oxygen Sensor #1, AND #2
    â€¢ Mass Air Flow (MAF) Sensor
    â€¢ Air Injection BL Valve

25-ELEK IGN

15A

Ignition Control Module (ICM)

27-B/U LAMP

10A

Transaxle Range Switch to Backup Lamps

28-A/C CLU

10A

A/C CLU Relay to A/C Compressor Clutch Coil

29-RADIO

10A

    â€¢ Driver Information Display
    â€¢ Heater-A/C Control
    â€¢ Radio Rear Side Door Actuator Control Module
    â€¢ Remote Control Door Lock Receiver (RCDLR)
    â€¢ Security Indicator Lamp
    â€¢ Theft Deterrent Shock Sensor

30-ALT SENSE

10A

Generator

31-TCC

10A

    â€¢ Automatic Transaxle (Torque Converter Clutch and Shift Solenoids)
    â€¢ Stop Lamp Switch to Powertrain Control Module (PCM)

32-FUEL PUMP

15A

Fuel Pump Relay

33-ECM SENSE

10A

Powertrain Control Module (PCM)

35-FOG LP

10A

Fog Lamp Relay

36-HORN

15A

Horn Relay

37-PARK LP

20A

    â€¢ Daytime Running Lamps (DRL) Control Module
    â€¢ Headlamp and IP Lamp Dimmer Switch
    â€¢ Theft Deterrent Relay to Headlamps

39-AIR

30A

Air Pump Relay

Instrument Panel Fuse Block


Object Number: 612640  Size: LF

Fuse Block Application Table

Fuse/Circuit Breaker

Rating

Description

BCM PRGRM

10A

Body Control Module (BCM)

CAN VENT SOL

10A

Evaporative Emission (EVAP) Canister Vent Solenoid Valve

CIGAR/DLC

15A

    â€¢ Cigar Lighter
    â€¢ Data Link Connector (DLC)

CLUSTER/BATT

10A

Instrument Cluster

CRUISE

10A

    â€¢ Cruise Control Module
    â€¢ Cruise Control Release Switch
    â€¢ Cruise Control Switch

CTSY LAMP

10A

Body Control Module (BCM)

DRL

10A

Daytime Running Lamps (DRL) Control Module

ELC/TRAILER

25A

Auto Level Control (ALC) air Compressor, Automatic Level on (ALC) In

FRT PWR SCKT

20A

Front Electric Accessory Plug Housing

FRT WPR/WSHR

25A

    â€¢ Windshield Wiper Motor
    â€¢ Windshield Wiper/Washer Switch

HAZARD

15A

    â€¢ Turn Signal Switch
    â€¢ Trailer Towing Indicator

HTD MIRROR

10A

LH, RH Outside Rearview Mirrors

HVAC/BLOWER

25A

Heater-A/C Control

HVAC/DIC/DRL/HEATED SEAT

10A

    â€¢ Electric Slave Actuator
    â€¢ Heater A/C Control
    â€¢ Electric Air Inlet Actuator
    â€¢ Rear Window Defogger Relay
    â€¢ Heated Seat Switch
    â€¢ Driver Information Display (DID)
    â€¢ Daytime Running Lamps (DRL) Control Module

IGNI

10A

    â€¢ Body Control Module (BCM)
    â€¢ Instrument Cluster
    â€¢ Rear Side Door Actuator Control Module
    â€¢ Stop Lamp Switch

LH HEADLP HIGH

10A

LH Headlamp High Beam

LH HEADLP LOW

10A

 

LH T/LP

10A

    â€¢ LH Taillamp
    â€¢ Trailer Rear Wiring Harness

MALL/CLUSTER

10A

    â€¢ Body Control Module (BCM)
    â€¢ Instrument Cluster

PASS KEY

10A

Pass Key III Module

PCM/ABS

10A

    â€¢ Underhood Accessory Wiring Junction Block
    â€¢ Transaxle Range Switch
    â€¢ Powertrain Control Module (PCM)
    â€¢ Electronic Brake Control Module (EBCM)

PCM/CRANK

10A

Powertrain Control Module (PCM)

PCM/PASS KEY/CLUSTER

10A

    â€¢ Pass Key III Module
    â€¢ Instrument Cluster
    â€¢ Powertrain Control Module

PWR LOCK

20A

Body Control Module (BCM)

PWR MIRROR

10A

Outside Rearview Mirror Remote Control Switch

PWR QTR VENT

10A

    â€¢ Interior Lamps
    â€¢ Multifunction Switch (Rear Quarter Window Switch)
    â€¢ Auto Level Control (ALC) Sensor
    â€¢ Auto Level Control (ALC) Air Compressor

RAP RELAY

10A

Rap Relay

RH HEADLP HIGH

10A

RH Headlamp High Beam

RH HEADLP LOW

10A

RH Headlamp Low Beam

RR HVAC/TEMP CONT

25A

    â€¢ Auxiliary Blower Motor
    â€¢ Auxiliary Heater-A/C Control
    â€¢ Auxiliary Temperature Valve Actuator

RR DEFOG/HTD MIRRORS

30A

Rear Window Defogger Relay

RR FOG LP

10A

Rear Fog Lamp Relay

RR PWR SCKT

20A

Rear Electric Accessory Plug Housing

RH T/LP

10A

    â€¢ RH Taillamp
    â€¢ Trailer Rear Wiring Harness

RR WPR/WSHR

20A

    â€¢ Rear Window Wiper Motor
    â€¢ Rear Window Wiper/Washer
    â€¢ Multifunction Switch (Rear Window Wiper/Washer Switch)

SIR

15A

Inflatable Restraint Sensing and Diagnostic Module (SDM)

STOP LAMP

15A

Stop Lamp Switch to Stop Lamps

SWC BACKLIGHT

2A

    â€¢ Left Hand Radio Control Switch
    â€¢ Right Hand Radio Control Switch (Illumination)

T/SIG

10A

Turn Signal Switch and Backup Lamp Relay