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


Object Number: 720605  Size: LF

Fuse Block-I/P Application Table

Fuse/Circuit Breaker

Rating

Description

BCM PRGRM

10A

Body Control Module (BCM)

ENHANCED EVAP/AWD

15A

Evaporative Emission (EVAP) Canister Vent Solenoid, Clutch Pump Check Valve

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

Tail Lamp-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 Deterrent 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 Deterrent Control Module, Instrument Panel Cluster (IPC), Powertrain Control Module (PCM)

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 Assembly-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

Tail Lamp-Right, Trailer Rear Wiring Harness

RR WPR/WSHR

20A

Window Wiper Motor-Rear, Rear Window Wiper/Washer and Multifunction 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