GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Underhood Accessory Wiring Junction Block -- Top View


Object Number: 589187  Size: LF
Figure 2:

Underhood Accessory Wiring Junction Block Label


Object Number: 589185  Size: LF
Figure 3:

Underhood Accessory Wiring Junction Block -- Bottom View


Object Number: 589189  Size: LF

Underhood Accessory Wiring Junction Block, Fuse Application Table

Fuse/Circuit Breaker

Rating

Description

COOL FAN 2

30 AMP

COOL FAN 2 Relay and COOL FAN Relay

HEADLAMPS

60 AMP

HVAC HI Fuse, PWR MIR Fuse, HAZARD Fuse, RAP Fuse and PASSKEY III Fuse

BATT MAIN 2

60 AMP

R DEFOG Fuse, H SEAT LUM Fuse, PWR LOCK Fuse, RADIO AMP Fuse and SEAT Circuit Breaker

IGN MAIN 1

40 AMP

Ignition Switch

COOL FAN 1

30 AMP

COOL FAN 1 Relay

BATT MAIN 1

60 AMP

CD CHG Fuse, AUX/CNSL Fuse, Stop Lamp Fuse, INT LAMP Fuse and CIG LTR Fuse

IGN MAIN 2

60 AMP

Accessory Time Delay (RAP) Relay, Ignition Switch

INJ

10 AMP

Fuel Injectors

IGN1-UH

15 AMP

Evaporative Emissions (EVAP) Canister Purge Solenoid Valve and Mass Air Flow (MAF) Sensor

ELEK IGN

15 AMP

Ignition Control Module (ICM)

B/U LAMP

10 AMP

Park/Neutral Position Switch

A/C CLU/ABS IGN

10 AMP

A/C CLU Relay and Electronic Brake Control Module (EBCM)

RADIO BATT

10 AMP

Heater-A/C Control, Remote Control Door Lock Receiver (RCDLR), Theft Deterrent Shock Sensor, Theft Deterrent Indicator Lamp and Trip Calculator

ALT SENSE

10 AMP

Generator

TCC

10 AMP

Stoplamp Switch, Automatic Transaxle

FUEL PUMP

15 AMP

F/PMP SPD CONT Relay and FUEL PUMP Relay

ECM SENSE

10 AMP

Powertrain Control Module (PCM)

FOG LP

10 AMP

FOG LAMP Relay

HORN

15 AMP

HORN Relay

PARK LP

20 AMP

HORN Relay

Figure 4:

Fuse Block Label


Object Number: 589183  Size: LF
Figure 5:

Fuse Block Cavity Terminals


Object Number: 589179  Size: LF
Figure 6:

Fuse Block Amperage Ratings


Object Number: 589178  Size: LF

Instrument Panel Fuse Block, Fuse Application Table

Fuse/Circuit Breaker

Rating

Description

ABS

20 AMP

Brake Modulator (RPO L36 Only)

CRANK SIGNAL, BCM, CLUSTER

10 AMP

Instrument Cluster, Body Control Module (BCM), Powertrain Control Module (PCM)

IGN 0: CLUSTER PCM & BCM

10 AMP

Powertrain Control Module (PCM), Body Control Module (BCM), Automatic Transaxle Control Position Indicator Bulb and Instrument Cluster

HEATED MIRROR

10 AMP

LH Outside Rearview Mirror and RH Outside Rearview Mirror

LOW BLOWER

20 AMP

Heater-A/C Control (RPO C67 Only)

HVAC

10 AMP

Vacuum/Electric Solenoid, Rear Window Defogger Relay, LH Electric Actuator, Heater-A/C Control, RH Electric Actuator (RPO CJ2 Only), LH Heated Seat, Inside Rearview Mirror (Day/Night) and RH Heated Seat

CRUISE

10 AMP

Cruise Control Module

BTSI

10 AMP

Brake Transmission Shift Interlock (BTSI)

TURN SIGNALS CORN LP

10 AMP

Hazard Warning Switch, Turn Signal Switch

AIR BAG

10 AMP

Inflatable Restraint Sensing and Diagnostic Module (SDM)

CLUSTER

10 AMP

Instrument Panel

PCM, BCM, U/H RELAY

10 AMP

Body Control Module (BCM), CRANK Relay, IGN MAIN Relay, Powertrain Control Module (PCM)

RADIO, HVAC, RFA CLUSTER, DATA LINK

15 AMP

Low Frequency Audio Amplifier (RPO U85), Radio, Heater-A/C Control, Data Link Connector (DLC), Remote Control Door Lock Receiver and Instrument Cluster

BCM

10 AMP

Body Control Module (BCM)

CIGAR LTR, AUX POWER

20 AMP

Power Drop Connector, Cigar Lighter and Accessory Power Receptacle

INADV POWER

15 AMP

Retained Accessory Power (RAP) Relay

CD CHANGER

10 AMP

CD Player

HIGH BLOWER

30 AMP

Blower Motor Resistor and Blower Motor Control Module

HAZARD

15 AMP

Hazard Warning Switch

STOP LAMPS

15 AMP

Stop Lamp Switch

DOOR LOCKS

20 AMP

Body Control Module (BCM)

POWER MIRRORS

2 AMP

Outside Remote Control Rearview Mirror Switch

RH HEATED SEAT

15 AMP

RH Heated Seat

LH HEATED SEAT

15 AMP

LH Heated Seat

RED STRG WHL ILLUM

2 AMP

Inflatable Restraint Steering Wheel Module Coil, LH Steering Wheel Control Switch and RH Steering Wheel Control Switch

FRT PARK LPS, FOG LAMPS

10 AMP

LH Headlamp and RH Headlamp

TAIL LAMPS LIC LAMPS

15 AMP

LH Rear Side Marker Lamp, LH Tail/Stop Lamp, LH Rear License Plate Lamp, RH Rear License Plate Lamp, RH Tail/Stop Lamp and RH Rear Side Marker Lamp

PANEL DIMMING

7.5 AMP

Instrument Panel Lamps Dimmer Switch

WIPER

25 AMP

Windshield Wiper Motor and Windshield Wiper/Washer Switch

POWER DROP

10 AMP

Power Drop Connector

RADIO, CRUISE

2 AMP

Cruise Control Switch and Radio

Figure 7:

Lower Center of Instrument Panel (w/o D55)


Object Number: 573603  Size: LF
(1)C242 (Inline from IP to Cigar Lighter Jumper)
(2)Cigar Lighter Jumper Harness
(3)Cigar Lighter (w/o RPO D55)
(4)Ashtray
Figure 8:

Below I/P, Inside of Floor Console


Object Number: 374758  Size: LF
(1)Driver Seat Heater Switch
(2)Driver Seat Heater Switch Connector
(3)C240
(4)S238
(5)S264
(6)Floor Console Accessory Power Receptacle
Figure 9:

Right Side Of Instrument Panel


Object Number: 327495  Size: LF
(1)Fuse Block
(2)IP Compartment Lamp
Figure 10:

Steering Wheel Component Views


Object Number: 374744  Size: LF
(1)Windshield Wiper/Washer/Turn Signal Switch
(2)Ignition Switch
(3)Radio Steering Wheel Controls Connector
(4)SIR Connector
(5)Inflatable Restraint Steering Wheel Module Coil
Figure 11:

Right Side Of Engine Compartment


Object Number: 327340  Size: LF
(1)Battery
(2)Postive Battery Terminal
(3)Underhood Accessory Wiring Junction Block
Figure 12:

RH Side of I/P


Object Number: 593545  Size: LF
(1)Power Drop Connector