FixVault

UDERHOOD Fuse Block

NOTE: Engine compartment junction block is located in rear of left side of engine compartment. See Fig 1.
Fig 1: Locating Underhood Fuse Block
G00100866Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying Underhood Fuse Block
GM770281Courtesy of GENERAL MOTORS CORP.
Fuse Block - Underhood Fuse And Relay Identification Legend

No. Fuse And Relay Description Rating Circuits
1 IGN SW - BATT2 Fuse 30A Ignition Switch
2 R/H BEC BATT Fuse 30A RH I/P Junction Block
3 L/H BEC BATT2 Fuse 30A LH I/P Junction Block
4 ABS Fuse 50A Electronic Brake Control (ABS) Relay
5 IGN SW - BATT1 Fuse 40A Ignition Switch
6 - - Not Used
7 L/H BEC BATT1 Fuse 40A LH I/P Junction Block
8 COOL FAN #1 Fuse 30A Fan Control Relay #1
9 RR Defog Relay - Rear Defogger
10-11 - - Not Used
12 Cool fan #1 Relay - Cooling Fan - Left
13 HVAC Blower Relay - Blower Motor
14 Cool Fan #2 Relay - Cooling Fan - Right
15 Cool Fan Mode Relay - Switches from Only the Left Cooling Fan to Both Cooling Fans
16 A/C Compressor Relay - A/C Compressor Clutch
17 - - Not Used
18 Fuel Pump Relay - Controlled from the PCM, Controls the Fuel pump
19 ALC Park Lamp Control Relay - Marker Lamps
20 ALC Headlamp Control Relay - Marker Lamps with Headlamps On
21 Horn Relay - Horn
22 DRL Relay - Daytime Running Lamps
23 - 32 - - Spare
33 RR DEFOG 30A Rear Defogger
34 AUX PWR/CIGAR 20A Auxiliary Power Outlet and Cigar Lighter (Chevrolet)
35 GEN BATT 10A Generator
36 - - Not Used
37 A/C BFC 10A A/C Compressor Clutch and Body Control Module (BCM)
38 AUTO TRANS 10A Automatic Transaxle
39 PCM IGN 10A Powertrain Control Module (PCM)
40 ABS IGN 10A Electronic Brake Control Module (EBCM)
41 IGN MOD 10A Ignition Control (IC) Module
42 B/U LMP 10A Park/Neutral Position Switch
43 HORN 15A Horn
44 PCM BATT 10A Powertrain Control Module (PCM)
45 PARK LPS 15A Park Lamps
46 HTR A/C IGN 10A Daytime Running Lamps (DRL), Rear Defogger, Heater A/C Control Assembly, and Air Temperature Actuator
47 ERLS 10A EVAP, EGR, PCM, HO2S 1, and HO2S 2
48 F/P INJR 15A Fuel Pump and Fuel Injectors
49 - - Not Used
50 RH HDLP 15A Headlamps Right Side
51 LH HDLP 15A Headlamps, Left Side
52 COOL FAN #2 15A Fan Control Relay #2
53 HI BLO MOT 30A Blower Motor
54 - - Not Used
55 COOL FAN #2 Ground (V-6 ONLY) 30A Cooling Fans (V-6 Only)
Misc A/C Comp Diode - A/C Compressor