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

Engine Wiring Harness Junction Block 1 Label


Object Number: 326528  Size: MF
Figure 2:

Engine Wiring Harness Junction Block 1 (Top View)


Object Number: 326532  Size: MF

Engine Wiring Harness Junction Block 1 MaxiFuse® Application Table

Fuse/Circuit Breaker

Rating

Description

1

30 Amps

Engine Wiring Harness Junction Block 1: FAN CONT 1 Relay

2

60 Amps

Engine Wiring Harness Junction Block 1: PCM BAT, R/CMPT REL Fuses, IGN SYST Relay

4

60 Amps

Fuse Block: Fuses 1, 5, 6, 10, 14, 15, 19, 23, 28, 32, 37, 41 and POWER SEATS Circuit Breaker D

Engine Wiring Harness Junction Block 1 MiniFuse® Application Table

Fuse/Circuit Breaker

Rating

Description

R/CMPT REL

15 Amps

Transaxle Range Switch: Rear Compartment Lid Release Switch, RCDLR, Backup Lamps

PCM BAT

20 Amps

Powertrain Control Module (PCM), FUEL PUMP Relay, Engine Coolant Fan Relays: FAN CONT 1 and FAN CONT 2

A/C CONT

10 Amps

A/C CMPR Relay

TRANS

10 Amps

Automatic Transaxle Controls

F/INJN

15 Amps

Fuel Injectors

PCM IGN

15 Amps

PCM Sensors: Mass Air Flow (MAF) Sensor, Heated Oxygen (HO2S) Sensors 1 and 2, Evaporative Emissions (EVAP) Canister Purge Solenoid Valve

ELEK IGN

15 Amps

Ignition Control (IC) Module

Engine Wiring Harness Junction Block 1 Relay Application Table

Relay

Description

FUEL PUMP

Fuel Pump Relay

A/C CMPR

A/C Compressor Relay

FAN CONT #1

Engine Coolant Fan Motor 1 Control Relay

FAN CONT #2

Engine Coolant Fan Motor 1 and 2 Control Relay

IGN SYST

Underhood Ignition Feed

Figure 3:

Engine Wiring Harness Junction Block 2 Label


Object Number: 326537  Size: MF
Figure 4:

Engine Wiring Harness Junction Block 2 (Top View)


Object Number: 326541  Size: MF

Engine Wiring Harness Junction Block 2 MaxiFuse® Application Table

Fuse/Circuit Breaker

Rating

Description

ABS

60 Amps

Engine Wiring Harness Junction Block 2: Electronic Brake Control (ABS) Relay

HD LPS

20 Amps

Headlamp Switch

IGN SW 1

50 Amps

Ignition Switch: Theft Deterrent Relay, Fuse Block: POWER WINDOWS Circuit Breaker C and Fuses 4, 11, 12, 13, 20, 21, 22, 29, 30, 33, 38, 39, 42

Engine Wiring Harness Junction Block 2 MiniFuse® Application Table

Fuse/Circuit Breaker

Rating

Description

PARK LPS

15 Amps

Headlamp Switch (Parklamps)

HORN

15 Amps

Engine Wiring Harness Junction Block 2: HORN Relay

FAN #3

25 Amps

Engine Wiring Harness Junction Block 2: FAN #3 Relay

ABS

20 Amps

Front Brake Solenoid Valves (ABS)

Engine Wiring Harness Junction Block 2 Relay Application Table

Relay

Description

ABS

Electronic Brake Control (ABS) Relay

HORN

Horn Relay

FAN #3

Engine Coolant Motor 2 Control (High Speed)

Figure 5:

IP Fuse Block (Top View)


Object Number: 326517  Size: MF
Figure 6:

IP Fuse Block (Bottom View)


Object Number: 326523  Size: MF

I/P Fuse Block MiniFuse® Application Table

Fuse/Circuit Breaker

Rating

Description

1-CIGAR LIGHTER

15 Amps

Cigar Lighter

4-HVAC

15 Amps

HVAC Air Delivery Controls, HVAC Air Temperature Controls, Rear Window Defogger, Daytime Running Lamps (DRL), SEO: Digital Speedometer Module

5-HAZARD FLASHER

15 Amps

Hazard Lamps

6-RH SPOT LAMP (SEO)

15 Amps

RH Spot Lamp

7-STARTER RELAY

5 Amp

Transaxle Range Switch to Starter System

10-I/P ELECTRONICS BATTERY

15 Amps

Seat Belt/Ignition Key/Lamps (Warning) Alarm, Theft Deterrent System, Radio, DLC, Electronic Brake Control Module

11-POWER ACCESSORY #2 (SUNROOF)

20 Amps

Power Sunroof Switch, SEO 6J1 Customer Installed Accessories

12-ANTI THEFT/PCM

10 Amps

Theft Deterrent System, Powertrain Control Module (PCM), IGN SYST Relay

13-ABS

5 Amps

Electronic Brake Control Relay (ABS)

14-HVAC BLOWER MOTOR

20 Amps

Blower Motor Relay

15-LH SPOT LAMP (SEO)

15 Amps

LH Spot Lamp

16-STR WHL CONTROL #1

2 Amps

Steering Wheel Radio Controls Lighting

19-POWER ACCESSORY #1

10 Amps

Outside Remote Control Switch (Mirrors), Door Locks, Rear Compartment Courtesy Lamp, SEO: Emergency Vehicle Rear Compartment Lid Lamps, Emergency Vehicle Rear Window Panel Lamps

20-STR WHL CONTROL #2

2 Amps

Steering Wheel Radio Control Switches

21-AIR BAG

15 Amps

Inflatable Restraint Sensing and Diagnostic Module (SDM)

22-CRUISE CONTROL

15 Amps

Cruise Control System (Cruise Control Release Switch, Turn Signal Lever/Cruise Control Switches, Cruise Control Module

23-STOP LAMPS

15 Amps

Stop Lamps

25-ENGLISH/METRIC

5 Amps

Digital Speedometer Module (SEO)

28-CTSY LAMPS

15 Amps

RH Sunshade Illuminated Mirror or Auxiliary Dome Lamp (SEO), Courtesy Lamps, Inside Rearview Mirror

29-WIPER

25 Amps

Windshield Wiper/ Washer System

30-TURN SIGNAL

10 Amps

Turn Signal Lamps

32-POWER LOCKS

20 Amps

Door Locks, Remote Control Door Lock Receiver (RCDLR)

33-DRL MDL

10 Amps

Daytime Running Lamps (DRL), Accessory Switch (SEO)

37-REAR DEFOG

30 Amps

Rear Window Defogger Relay

38-RADIO

10 Amps

Radio, Auxiliary Power Drop Connector

39-I/P ELECTRONICS IGNITION FEED

10 Amps

Interior Lamps, Remote Control Door Lock Receiver (RCDLR), Instrument Cluster, Seat Belt/Ignition Key Lamps (Warning) Alarm, BTSI, Transmission Controls, SEO: Digital Instrument Cluster Controls

41-POWER DROP

15 Amps

Auxiliary Power Drop Connector

42-EVAP SOL

5 Amps

Evaporative Emissions (EVAP) Canister Vent Solenoid

I/P Fuse Block MiniFuse® Application Table

Fuse/Circuit Breaker

Rating

Description

C-POWER WINDOWS

20 Amps

Power Windows

D-POWER SEATS

20 Amps

Power Seats

Figure 7:

Cell 11: ELEK IGN, F/INJN, and PCM IGN Fuses


Object Number: 348760  Size: FS
Power and Grounding Components
Cell 11: A/C CONT, and TRANS Fuses
Figure 8:

Cell 11: A/C CONT, and TRANS Fuses


Object Number: 348771  Size: FS
Power and Grounding Components
Cell 11: PCM BAT, and R/CMPT REL Fuses
Cell 11: ELEK IGN, F/INJN, and PCM IGN Fuses
Figure 9:

Cell 11: PCM BAT, and R/CMPT REL Fuses


Object Number: 348781  Size: FS
Power and Grounding Components
Cell 11: ABS, Fan 3, Horn, and Park LPS Fuses
Cell 11: A/C CONT, and TRANS Fuses
Figure 10:

Cell 11: ABS, Fan 3, Horn, and Park LPS Fuses


Object Number: 348787  Size: FS
Power and Grounding Components
Cell 11: Cigar Lighter (1), Courtesy Lamps (28), and Rear Defog (37)Fuses
Cell 11: PCM BAT, and R/CMPT REL Fuses
Figure 11:

Cell 11: Cigar Lighter (1), Courtesy Lamps (28), and Rear Defog (37) Fuses


Object Number: 348791  Size: FS
Power and Grounding Components
Cell 11: IP Electronics Battery (10), and Power Accessory No.1 (19)Fuses
Cell 11: ABS, Fan 3, Horn, and Park LPS Fuses
Figure 12:

Cell 11: IP Electronics Battery (10), and Power Accessory No.1 (19) Fuses


Object Number: 348797  Size: FS
Power and Grounding Components
Cell 11: Power Accessory No. 2 (Sunroof) (11), Power Accessory No.2 (20), Wiper (29), and Radio (38) Fuses
Cell 11: Cigar Lighter (1), Courtesy Lamps (28), and Rear Defog (37)Fuses
Figure 13:

Cell 11: Power Accessory No. 2 (Sunroof) (11), Power Accessory No. 2 (20), Wiper (29), and Radio (38) Fuses


Object Number: 348800  Size: FS
Power and Grounding Components
Cell 11: Anti-Theft PCM (12), Air Bag (21), Turn Signal (30), and IP Electronics Ignition Feed (39) Fuses
Cell 11: IP Electronics Battery (10), and Power Accessory No.1 (19)Fuses
Figure 14:

Cell 11: Anti-Theft PCM (12), Air Bag (21), Turn Signal (30), and IP Electronics Ignition Feed (39) Fuses


Object Number: 348805  Size: FS
Power and Grounding Components
Cell 11: HVAC (4), ABS (13), and Cruise Control (22) Fuses
Cell 11: Power Accessory No. 2 (Sunroof) (11), Power Accessory No.2 (20), Wiper (29), and Radio (38) Fuses
Figure 15:

Cell 11: HVAC (4), ABS (13), and Cruise Control (22) Fuses


Object Number: 348929  Size: FS
Power and Grounding Components
Cell 11: Hazard Flasher (5), HVAC Blower Motor (14), Stop Lamps (23),Power Locks (32), and Power Drop (41) Fuses
Cell 11: Anti-Theft PCM (12), Air Bag (21), Turn Signal (30), and IP Electronics Ignition Feed (39) Fuses
Figure 16:

Cell 11: Hazard Flasher (5), HVAC Blower Motor (14), Stop Lamps (23), Power Locks (32), and Power Drop (41) Fuses


Object Number: 348936  Size: FS
Power and Grounding Components
Cell 11: RH Spot Lamp (SEO) (6), LH Spot Lamp (SEO) (15), DRL MDL (33),and EVAP SOL (42) Fuses
Cell 11: HVAC (4), ABS (13), and Cruise Control (22) Fuses
Figure 17:

Cell 11: RH Spot Lamp (SEO) (6), LH Spot Lamp (SEO) (15), DRL MDL (33), and EVAP SOL (42) Fuses


Object Number: 348943  Size: FS
Power and Grounding Components
Cell 11: Power Windows (C), Power Seats (D) Circuit Breakers, and STaRter Relay (7), STR Wheel Control NO.1 (16) Fuses
Cell 11: Hazard Flasher (5), HVAC Blower Motor (14), Stop Lamps (23),Power Locks (32), and Power Drop (41) Fuses
Figure 18:

Cell 11: Power Windows (C), Power Seats (D) Circuit Breakers, and Starter Relay (7), STR Wheel Control NO.1 (16) Fuses


Object Number: 348949  Size: FS
Power and Grounding Components
Cell 11: RH Spot Lamp (SEO) (6), LH Spot Lamp (SEO) (15), DRL MDL (33),and EVAP SOL (42) Fuses