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

MaxiFuse® Blocks


Object Number: 231696  Size: LF
(1)Power Brake Booster Pump Motor Relay
(2)MaxiFuse® Block 2
(3)Front Chassis Harness
(4)Positive Battery Cable Feed
(5)Maxifuse® Block 1
Figure 2:

Instrument Panel Harness, Lower Right Side (Relay Center 3)


Object Number: 397659  Size: LF
(1)Relay Center 3
(2)Turn/Hazard Flasher Module
(3)Blower Motor
Figure 3:

Instrument Panel, Right Side Forward View


Object Number: 228475  Size: MF
(1)Relay Center 1
(2)IP Fuse Block
Figure 4:

Instrument Panel, Center (Typical)


Object Number: 231681  Size: LF
(1)Relay Block 2
Figure 5:

Battery Cable to Engine


Object Number: 405205  Size: LF
(1)Positive Battery Cable
(2)Starter
Figure 6:

Battery Positive Cable to Side Member


Object Number: 405200  Size: LF
(1)Battery Positive Cable
Figure 7:

Engine Harness Ground to Frame


Object Number: 405208  Size: LF
(1)Engine Harness Ground Cable
(2)Left Side Frame Rail
Figure 8:

Front Chassis Harness to RH Frame, LH Forward View


Object Number: 228778  Size: MF
(1)Starter Relay
(2)Front Chassis Harness
(3)Body Builder Connector(s)
(4)Trailer Harness
(5)Rear Chassis Harness
(6)Negative Battery Cable
(7)Ground Block (Part of Negative Battery Cable, 6 cavities)
(8)Starter Relay Connector C3 (2 cavities)
(9)Starter Relay Connector C2 (1 cavity)
(10)Starter Relay Connector C1 (1 cavity)
Figure 9:

Cell 11: Fuse Block, Front View


Object Number: 244535  Size: SH
Figure 10:

Cell 11: Fuse Block, Rear View


Object Number: 244479  Size: MF

Fuse/Circuit Breaker

Rating

Description

1

25A

Ignition Switch

2

15A

Radio, Cigar Lighter, Body Builder Connector

3

15A

Timing and Injection Rate Control System (TICS)

4

15A

Glow Plug Relay

5

15A

Data Link Connector (DLC), Serial Signal Connector

6

15A

Relay Centers, VSS Buffer, I/P, Turn Signal Switch, DRL Relays

7

20A

Horn Relay, Turn Signal Switch, Radio, Engine Shutdown Module, Dome Lamp

8

20A

Power Window Relay

9

20A

Multifunction Alarm Module, Relay Center 1, Fuel Injection Pump Control Valve, Check Connector, Exhaust Brake Switch, Fuel Tanks, Air ABS Relay, Electronic Brake Control Module (Hydraulic)

10

15A

Timing and Injection Rate Control System (TICS), Serial Signal Connector, Check Connector

11

20A

LH Turn/Stop Relay

12

25A

Auxiliary Relay (Switched)

13

25A

Body Builder Connector (Battery Direct)

14

15A

LH Headlamps

15

15A

RH Headlamps

16

15A

Lighting Relays

17

--

Not Used

18

15A

Multifunction Alarm Module (MFAM)

19

15A

Taillamp Relay

20

20A

A/C Compressor, A/C Condensor Fan

21

20A

Windshield Wiper Motor, Windshield Washer Pump

22

20A

Heated Mirror Switch, Two-Speed Axle Motor Relay

23

20A

Stoplamp Relay, Stoplamp Switch

24

20A

Blower Motor Relay

25

20A

Hazard Flasher, Stoplamp Switch (Air Brake), RH Turn/Stop Relay, Park Brake Switch

26

20A

Auxiliary Power Post

Figure 11:

Relay Center 1


Object Number: 215317  Size: MH
(1)Power Window Relay
(2)Lighting Relay
(3)Taillamp Relay
(4)Fuel Pump Relay (Gas), Fuel Heater Relay (Diesel)
(5)Lighting Relay
(6)Park Brake Relay (w/J71 Park Brake), Marker Lamps Relay (Tractor)
(7)ABS Telltale Relay
(8)Left Turn/Trailer Relay
(9)Right Turn/Trailer Relay
Figure 12:

Relay Center 2


Object Number: 244518  Size: MH
(1)Engine Stop Relay
(2)Ignition #3 Relay
(3)Ignition #2 Relay
(4)Blower Relay
(5)Ignition #1 Relay
(6)Compressor Relay
(7)Condenser Fan Relay
(8)Accessory Relay
(9)Auxiliary Relay
(10)Horn Relay
(11)Stoplamp Relay