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UNDERHOOD Fuse Block

Underhood fuse block is located on driver's side in the engine compartment. See Fig 1.

Fig 1: Locating Underhood Fuse Block
G00310270Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying Underhood Fuse Block Components
G00310271Courtesy of GENERAL MOTORS CORP.
UNDERHOOD FUSE BLOCK LEGEND

No. Fuse Rating Description
1 ECM/TCM Fuse 10A TCM and ECM
2-3 - - Not Used
4 RH HDLP Fuse 15A Headlamp-Right
5 A/C Fuse 10A A/C Relay
6-7 - - Not Used
8 ABS2 Fuse 10A EBCM (JM4)
9 ECM Fuse 10A ECM
10 ERLS Fuse 10A EVAP Canister Purge Solenoid, EVAP Canister Vent Solenoid, Coolant Level Switch, HO2S 1, and HO2S 2
11 IGN Fuse 10A ICM and PNP Switch
12 - - Not Used
13 TRANS2 Fuse 10A Ratio Control Motor
14 TRANS 1 Fuse 10A TCM and PNP Switch (M43 or M75)
15 BACK UP Fuse 10A PNP Switch (M43 or M75) or Backup Lamp Switch (M86)
16 INJECTORS Fuse 10A Fuel Injectors 1-4
17 FOG Fuse 10A FOG LAMP Relay
18 LH HDLP Fuse 15A Headlamp-Left
19 WIPER Fuse 25A WIPER Relay
20 HORN Fuse 10A HORN Relay
21 PREM AUDIO 20A Audio Amplifier (UZ6)
22 ABS1 Fuse 20A EBCM (JM4)
23 RR DEFOG Fuse 30A REAR DEFOG Relay
24 A/C Relay - A/C Compressor Clutch
25 HORN Relay - Horn
26 FOG LAMP Relay - Fog Lamps
27 - - Not Used
28 RUN/CRANK Relay - Fuse Block - Underhood ABS 2, ECM, IGN, TRANS 2, TRANS 1, BACK UP, ERLS, INJECTORS Fuses, A/C Relay, Body Control Module AIR BAG, EPS, and CRUISE Fuses
29 - - Not Used
30 COOLING FAN Relay - Cooling Fan
31 PCM CONT Relay - Starter
32 WIPER1 Relay - Wiper 2 Relay
33 WIPER2 Relay - Windshield Wiper Motor Assembly
34 REARDEFOG Relay - Rear Window Defogger Grid
35 AC DIODE -  
36 - - Not Used
37 WIPER DIODE -  
38 RUN/CRANK Fuse 30A RUN/CRANK Relay
39 IP BATT1 Fuse 30A Body Control Module PARK, LIGHTER, DASH, BCM PWR, ONSTAR, RADIO Fuses and ACC Relay
40 ABS Fuse 40A EBCM (JM4)
41 IP BATT2 Fuse 40A Body Control Module FUELPUMP, STOP, CLUSTER, IGN SW, AND BCM ELECT Fuses
42 EPS 2 Fuse 30A EPS
43 EPS 1 Fuse 30A EPS
44 - - Not Used
45 COOLING FAN Fuse 30A COOLING FAN Relay
46 CRANK Fuse 30A PCM CONT Relay
47 IP BATT1A Fuse 30A Body Control Module PARK, LIGHTER, DASH, BCM PWR, ONSTAR, RADIO Fuses and ACC Relay
48 RUN (IGN3) Fuse 30A Body Control Module RUN RELAY
49 - - Fuse Puller