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

Fuse Block-Underhood


Object Number: 612638  Size: LF

Fuse Block-Underhood Label


Object Number: 612639  Size: MF

Fuse Block-Underhood Maxifuse® Application Table

Fuse

Rating

Description

1-COOL FAN 2

30A

Coolant Fans

3-HEADLAMPS

60A

Circuit Breakers:

    • FRT HVAC HI BLWR
    • HEADLAMP

Fuses:

    • HAZARD
    • PASS KEY
    • STOP LAMP

4-BATT MAIN 2

60A

Circuit Breaker:

  • PWR SEAT

Fuses:

    • ELC/TRAILER
    • PWR SLDG DR
    • RR DEFOG
    • RR FOG LP
    • RR DEFOG LP

5-IGN MAIN 1

40A

Ignition Switch to Fuses:

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

6-COOL FAN 1

30A

Coolant Fans

7-BATT MAIN 1

60A

Fuses:

    • CIGAR/DLC/APO FRT
    • CLUSTER BATT
    • CTSY LAMP
    • ON STAR
    • PWR LOCK
    • PWR MIRROR
    • RAP RELAY
    • RR PWR SCKT

8-IGN MAIN 2

60A

Ignition Switch to Fuses:

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

18-INJ

10A

Fuel Injectors 1-6

21-IGNI-UH

15A

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

25-ELEK IGN

15A

Ignition Control Module (ICM)

27-B/U LAMP

10A

Park/Neutral Position (PNP) Switch to Backup Lamps

28-A/C CLU

10A

A/C CLU Relay to A/C Compressor Clutch

29-RADIO

10A

    • Driver Information Center (DIC)
    • HVAC Control Module
    • Radio
    • Remote Control Door Lock Receiver (RCDLR)
    • Shock Sensor
    • Rear Side Door Actuator Control Module-Left, Right
    • Theft LED

30-ALT SENSE

10A

Generator

31-TCC

10A

    • Automatic Transmission (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 Switch
    • Vehicle Interface Unit (VIU)

39-AIR

30A

Air Pump Relay

Fuse Block


Object Number: 720605  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

CIGAR/DLC/APO FRT

20A

    • Auxiliary Power Outlet-Front
    • Cigar Lighter
    • Data Link Connector (DLC)

CLUSTER/BATT

10A

Instrument Panel Cluster (IPC)

CRUISE

10A

    • Cruise Control Module (CCM)
    • Cruise Control Release Switch
    • Cruise Control ON/OFF Switch

CTSY LAMP

10A

Body Control Module (BCM)

DRL

10A

Daytime Running Lamps (DRL) Control Module

DRL/HVAC/TEMP/HTD ST

10A

    • Air Temperature Actuator-Left
    • Air Temperature Actuator-Right
    • Daytime Running Lamps (DRL) Control Module
    • Driver Information Center (DIC)
    • Mode Actuator
    • Rear Window Wiper/Washer and Multifunction Switch (Heated Seat Switch)
    • Recirculation Actuator
    • Relay Block (Rear Window Defogger Relay)

ELC/TRAILER

25A

    • Auto Level Control (ALC) Air Compressor
    • Auto Level Control (ALC) Air Inflator Relay
    • Auto Level Control (ALC) Sensor

FRT HVAC HI BLWR

30A

Blower Motor Resistor Assembly

FRT WPR/WSHR

25A

    • Windshield Wiper Motor
    • Windshield Wiper/Washer Switch

HAZARD

15A

Turn Signal/Multifunction Switch

HEADLAMP

20A

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

HTD MIRROR

10A

Outside Rearview Mirrors-Left, Right

HVAC/BLOWER

25A

HVAC Control Module

IGN1

10A

    • Body Control Module (BCM)
    • Instrument Panel Cluster (IPC)
    • Left Rear Side Door Actuator Control Module
    • Rear Object Sensor Control Module
    • Right Rear Side Door Actuator Control Module
    • Stop Lamp Switch

LH HEADLP HIGH

10A

Headlamp High Beam-Left

LH HEADLP LOW

10A

Headlamp Low Beam-Left

LH T/LP

10A

    • Taillamp-Left
    • Trailer Rear Wiring Harness

MALL/CLUSTER

10A

    • Body Control Module (BCM)
    • Instrument Panel Cluster (IPC)

ON STAR

10A

Vehicle Interface Unit (VIU)

PASS KEY

10A

Theft Deterent Control Module

PCM/ABS

10A

    • Electronic Brake Control Module (EBCM)
    • Fuse Block-Underhood
    • Powertrain Control Module (PCM)
    • Park/Neutral Position (PNP) Switch

PCM/CRANK

10A

Powertrain Control Module (PCM)

PCM/PASS KEY/CLUSTER

10A

    • Instrument Panel Cluster (IPC)
    • Powertrain Control Module (PCM)
    • Theft Deterent Control Module

PWR LOCK

20A

Body Control Module (BCM)

PWR MIRROR

10A

Outside Rearview Mirror Switch

PWR QTR VENT

10A

    • Auto Level Control (ALC) Air Compressor
    • Auto Level Control (ALC) Sensor
    • Rear Quarter Window Switch

PWR SEAT

30A

    • Driver Seat Assembly
    • Passenger Seat Assembly

PWR SLDG DR

30A

    • Left Rear Side Door Actuator Control Module
    • Right Rear Side Door Actuator Control Module

PWR WDO

30A

    • Window Switch-Driver
    • Window Switch-Front Passenger

RAP RELAY

10A

Relay Block (RAP Relay)

RH HEADLP HIGH

10A

Headlamp High Beam-Right

RH HEADLP LOW

10A

Headlamp Low Beam-Right

RR HVAC/TEMP CONT

25A

    • Air Temperature Actuator-Auxiliary
    • Blower Motor-Auxiliary
    • Blower Motor Relay-Auxiliary
    • HVAC Control Module-Auxiliary
    • Mode Actuator-Auxiliary

RR DEFOG

30A

Window Defogger Relay-Rear

RR FOG LP

10A

Fog Lamp Relay-Rear

RR PWR SCKT

20A

Auxiliary Power Outlet-Rear

RH T/LP

10A

    • Taillamp-Right
    • Trailer Rear Wiring Harness

RR WPR/WSHR

20A

    • Window Wiper Motor-Rear
    • Rear Window Wiper/Washer and Multifunction Switch (Rear Window Wiper/Washer Switch)

SDM

15A

Inflatable Restraint Sensing and Diagnostic Module (SDM)

STOP LAMP

15A

Stop Lamp Switch

SWC BACKLIGHT

2A

Steering Wheel Controls-Left, Right

T/SIG

10A

Turn Signal Switch and Backup Lamp Relay