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:

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

4-BATT MAIN 2

60A

Circuit Breaker:

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

5-IGN MAIN 1

40A

Ignition Switch to Fuses (IP):

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

6-COOL FAN 1

30A

Coolant Fans

7-BATT MAIN 1

60A

Fuses (IP):

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

8-IGN MAIN 2

60A

Ignition Switch to Fuses (IP):

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

18-INJ

10A

Fuel Injectors 1-6

21-IGNI-UH

15A

    • Evaporative Emissions (EVAP) Canister Purge Solenoid Valve
    • Heated Oxygen Sensor #1, AND #2
    • Mass Air Flow (MAF) Sensor
    • 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

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

30-ALT SENSE

10A

Generator

31-TCC

10A

    • Automatic Transaxle (Torque Converter Clutch and Shift Solenoids)
    • 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

    • Daytime Running Lamps (DRL) Control Module
    • Headlamp and IP Lamp Dimmer Switch
    • 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

    • Cigar Lighter
    • Data Link Connector (DLC)

CLUSTER/BATT

10A

Instrument Cluster

CRUISE

10A

    • Cruise Control Module
    • Cruise Control Release Switch
    • 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

    • Windshield Wiper Motor
    • Windshield Wiper/Washer Switch

HAZARD

15A

    • Turn Signal Switch
    • Trailer Towing Indicator

HTD MIRROR

10A

LH, RH Outside Rearview Mirrors

HVAC/BLOWER

25A

Heater-A/C Control

HVAC/DIC/DRL/HEATED SEAT

10A

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

IGNI

10A

    • Body Control Module (BCM)
    • Instrument Cluster
    • Rear Side Door Actuator Control Module
    • Stop Lamp Switch

LH HEADLP HIGH

10A

LH Headlamp High Beam

LH HEADLP LOW

10A

 

LH T/LP

10A

    • LH Taillamp
    • Trailer Rear Wiring Harness

MALL/CLUSTER

10A

    • Body Control Module (BCM)
    • Instrument Cluster

PASS KEY

10A

Pass Key III Module

PCM/ABS

10A

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

PCM/CRANK

10A

Powertrain Control Module (PCM)

PCM/PASS KEY/CLUSTER

10A

    • Pass Key III Module
    • Instrument Cluster
    • Powertrain Control Module

PWR LOCK

20A

Body Control Module (BCM)

PWR MIRROR

10A

Outside Rearview Mirror Remote Control Switch

PWR QTR VENT

10A

    • Interior Lamps
    • Multifunction Switch (Rear Quarter Window Switch)
    • Auto Level Control (ALC) Sensor
    • 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

    • Auxiliary Blower Motor
    • Auxiliary Heater-A/C Control
    • 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

    • RH Taillamp
    • Trailer Rear Wiring Harness

RR WPR/WSHR

20A

    • Rear Window Wiper Motor
    • Rear Window Wiper/Washer
    • 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

    • Left Hand Radio Control Switch
    • Right Hand Radio Control Switch (Illumination)

T/SIG

10A

Turn Signal Switch and Backup Lamp Relay