Engine Compartment Junction Block

NOTE: Engine compartment junction block is located on driver's side of engine compartment. See Fig 1.

Fig 1: Locating Underhood Junction Block

Courtesy of GENERAL MOTORS CORP.

Fig 2: Identifying Engine Compartment Fuse Block

Courtesy of GENERAL MOTORS CORP.

ENGINE COMPARTMENT FUSE BLOCK CIRCUIT IDENTIFICATION (1 OF 3)

Fuses	Usage
1	Ignition Switch
2	Right Electrical Center-Fog Lamps (If Equipped), Radio, Body Function Control Module, Interior Lamps
3	Left Electrical Center-Stoplamps, Hazard Lamps, Body Function Control Module, Cluster, Climate Control System
4	Anti-Lock Brakes
5	Ignition Switch
6	Not Used
7	Left Electrical Center-Power Seats, Power Mirrors, Door Locks, Trunk Release and Remote Lock Control
8	Cooling Fan #1

ENGINE COMPARTMENT FUSE BLOCK CIRCUIT IDENTIFICATION (2 OF 3)

Relays	Usage
9	Rear Defogger Relay
10	Not Used
11	Not Used
12	Cooling Fan #1 Relay
13	HVAC Blower Relay(Climate Control)
14	Cooling Fan #2 Relay
15	Cooling Fan Relay
16	Air Conditioning Compressor Relay
17	Not Used
18	Fuel Pump Relay
19	Automatic Headlamp System Relay
20	Automatic Headlamp System Relay
21	Horn Relay
22	Daytime Running Lamps Relay (DRL)

ENGINE COMPARTMENT FUSE BLOCK CIRCUIT IDENTIFICATION (3 OF 3)

Fuses	Usage
23-32	Spare Fuse Holder
33	Rear Defogger
34	Accessory Power Outlets, Cigar Lighter
35	Not Used
36	Not Used
37	Air Conditioning Compressor, Body Function Control Module
38	Automatic Transaxle
39	Powertrain Control Module (PCM), Ignition
40	Anti-Lock Brakes (ABS)
41	Ignition System
42	Back-Up Lamps, Shift Lock Control System
43	Horn
44	PCM
45	Parking Lamps
46	Climate Control System
47	Canister Purge Valve, PCM, Exhaust Gas Recirculation, Heated Oxygen Sensor
48	Fuel Pump Injectors
49	Not Used
50	Right Headlamp
51	Left Headlamp
52	Cooling Fan
53	HVAC Blower (Climate Control)
54	Not Used
55	Not Used
56	Fuse Puller
57	Not Used