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

Underhood Accessory Wiring Junction Block, Top View


Object Number: 589269  Size: LF
Figure 2:

Underhood Accessory Wiring Junction Block, Bottom View


Object Number: 589268  Size: LF

Underhood Accessory Wiring Junction Block, Fuse Application Table

Fuse/Circuit Breaker

Rating

Description

COOL FAN 2

25 AMP

COOL FAN 2 Relay and COOL FAN 3 Relay

STARTER SOLENOID

40 AMP

CRANK Relay

BAT 3

60 AMP

REAR DEFOG Circuit Breaker, POWER SEATS Circuit Breaker, RH HEATED SEAT Fuse and LH HEATED SEAT Fuse

BAT 2

60 AMP

HIGH BLOWER Fuse, HAZARD Fuse, STOP LAMPS Fuse, DOOR LOCKS Fuse and POWER MIRRORS Fuse

IGN 2

50 AMP

Ignition Switch

COOL FAN 1

25 AMP

COOL FAN 1 Relay

BAT 1

60 AMP

RADIO, HVAC, RFA, CLUSTER, DATA LINK Fuse, BCM Fuse, CIGAR LTR AUX POWER Fuse, INADV POWER BUS Fuse and CD CHANGER Fuse

IGN 1

30 AMP

Ignition Switch and Retained Accessory Power (RAP) Relay

GEN

10 AMP

Generator

ECM

10 AMP

Powertrain Control Module (PCM)

A/C CLU

10 AMP

A/C Clutch Relay

F/INJ

15 AMP

Fuel Injector 2, 3 and 6, Ignition Control Module (ICM) Front

TRANS

10 AMP

Automatic Transaxle

HORN

15 AMP

HORN Relay

F/INJR

15 AMP

Fuel Injector 1, 3, 5 and Ignition Control Module (ICM) Rear

OXY SEN

15 AMP

Heated Oxygen Sensor (HO2S) 1 and Heated Oxygen Sensor (HO2S) 2

ENG EMIS

10 AMP

Auxiliary Underhood Accessory Wiring Junction Block, Evaporative Emissions (EVAP) Canister Purge Solenoid Valve, Mass Air Flow (MAF) Sensor, Secondary Air Injection Bypass Valve Solenoid and Brake Transmission Shift Interlock (BTSI) Switch

FOG LP

10 AMP

FOG LAMP Relay

HDLP R

15 AMP

RH Headlamp

R/CPMT REL

7.5 AMP

Park/Neutral Position Switch

LP PARK

20 AMP

Headlamp Switch, Headlamp Relay and Parklamp Relay

F/PMP

15 AMP

F/PMP Relay

HDLP L

15 AMP

LH Headlamp

ABS

10 AMP

Electronic Brake Traction Control Module (EBTCM), Steering Angle (VDC) Sensor and Vehicle YAW Sensor

Figure 3:

Instrument Panel Fuse Block Label


Object Number: 589261  Size: LF
Figure 4:

IP Fuse Block Cavity Terminal


Object Number: 589264  Size: LF
Figure 5:

Fuse Block Amperage Rating


Object Number: 589262  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 6:

I/P-Lower Center, Passenger Side


Object Number: 589222  Size: LF
(1)Auxiliary Power Outlet and Connector
Figure 7:

Lower Center of Instrument Panel


Object Number: 589223  Size: LF
(1)HVAC Control Module
(2)Heated Seat Switch-Driver (w/KA1)
(3)Heated Seat Switch-Front Passenger (w/KA1)
(4)Cigar Lighter
Figure 8:

Fuse Block Side of Instrument Panel-Right


Object Number: 305345  Size: LF
(1)Fuse Block-IP
Figure 9:

Right of Instrument Panel Cluster


Object Number: 589226  Size: LF
(1)Ignition Switch Lamp Connector
(2)Ignition Switch Connector
(3)Ignition Switch Connector
(4)Ignition Switch
(5)Passlockā„¢ Sensor Connector
Figure 10:

Right Front of Engine Compartment


Object Number: 576566  Size: LF
(1)Positive Battery Cable
(2)Negative Battery Cable
(3)Positive Battery Cable to Remote Battery Stud
(4)Positive Battery Cable to Fuse Block-Underhood
(5)Fuse Block-Underhood
(6)G100
Figure 11:

Left Rear of Engine Compartment


Object Number: 576578  Size: LF
(1)Fuse Block-Underhood
(2)Positive Battery Cable to Remote Battery Stud
(3)Positive Battery Cable to Fuse Block-Underhood Accessory
(4)Fuse Block-Underhood Accessory
Figure 12:

Fuse Block-Underhood Accessory (NC1)


Object Number: 589230  Size: LF
(1)Fuse Block-Underhood Accessory
(2)Positive Battery Cable to Fuse Block-Underhood Accessory
Figure 13:

Lower Right of Engine Compartment


Object Number: 576827  Size: LF
(1)Fuse Block-Underhood Connector, C2
(2)Fuse Block-Underhood Connector, C3
Figure 14:

Lower Side of I/P, in Front of I/P Compartment-Right


Object Number: 593542  Size: LF
(1)Auxiliary Power Drop Connector--Taped To Harness