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UNDERHOOD Fuse Block

NOTE: Underhood electrical center is located on right side front of engine compartment.
Fig 1: Identifying Underhood Fuse Block Components
GM1633284Courtesy of GENERAL MOTORS CORP.
Fuse Block - Underhood Fuse And Relay Identification Legend

No. Fuse And Relay Description Rating Circuits
F1 SPARE Fuse 20A Spare Fuse
F2 LT LO BEAM Fuse 20A Headlamp Assembly - LF
F3 RT LO BEAM Fuse 20A Headlamp Assembly - RF
F4 AIRBAG IGN 3 Fuse 10A Inflatable Restraint I/P Module Indicator, Inflatable Restraint Sensing and Diagnostic Module (SDM)
F5 ECM IGN 3 Fuse 10A Engine Control Module (ECM) (LD8), Powertrain Control Module (PCM) (L26)
F6 TRANS IGN 3 Fuse 10A Transmission Control Module (TCM) (LD8), Automatic Transmission
F7-F9 SPARE Fuse - Spare Fuses
F10 HI BEAM Fuse 10A Headlamp Assembly - RF
F11 HI BEAM Fuse 10A Headlamp Assembly - LF
F12 WSW/PUMP Fuse 15A Windshield Washer Fluid Pump
F13 SPARE Fuse - Spare Fuses
F14 HVAC/IPC Fuse 10A HVAC Control Module, Instrument Panel Cluster (IPC), Recirculation Actuator (C67)
F15 SPARE Fuse - Spare Fuses
F16 FOG Fuse 15A Fog Lamp - LF, Fog Lamp - RF (T96)
F17 HORN Fuse 15A Horn Assembly
F18 WPR Fuse 25A WIPER Relay, WIPER HI Relay
F19 LT CRN LAMP Fuse 10A Headlamp - LF
F20 RT CRN LAMP Fuse 10A Headlamp - RF
F21 OXY PST Fuse 15A Heated Oxygen Sensor (HO2S) 2
F22 PWR TRN Fuse 15A Heated Oxygen Sensor 1 (HO2S) (L26), Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (LD8), Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 (LD8), Evaporative Emission (EVAP) Canister Purge Solenoid Valve
F23 ECM/CRNK Fuse 15A Engine Control Module (ECM) (LD8), Throttle Actuator Control (TAC) Module (L26)
F24 INJ/COIL Fuse 15A Fuel Injectors (L26), Fuel Injectors - Odd Bank (LD8), Ignition Coil/Modules - Odd Bank (LD8)
F25 INJ/COIL Fuse 15A Ignition Control Module (L26), Fuel Injectors - Even Bank (LD8), Ignition Coil/Modules - Even Bank (LD8)
F26 A/C Fuse 10A A/C Relay
F27 AIR/SOL Fuse 15A AIR/SOL Relay (NU6)
F28 ECM/TCM Fuse 15A Spare Fuse
F29-F30 SPARE Fuse - Spare Fuses
F31 SPARE Fuse 15A Spare Fuse
F32 SPARE Fuse 25A Spare Fuse
JC1 WSW HTD Fuse 60A Windshield Washer Solvent Heater (XA7)
JC2 FAN 1 Fuse 30A COOL/FAN 1 Relay
JC3 SPARE Fuse - Spare Fuse
JC4 CRNK Fuse 40A CRNK Relay
JC5 FAN 2 Fuse 30A COOL/FAN 2 Relay
JC6 ABS2 Fuse 50A Electronic Brake Control Module (EBCM)
JC7 ABS1 Fuse 60A Electronic Brake Control Module (EBCM)
JC8 AIR PUMP Fuse 50A AIR PUMP Relay (NU6)
R1 COOL/FAN 1 Relay - Engine Control Module (ECM) (LD8), Powertrain Control Module (PCM) (L26), Cooling Fan - Left
R2 COOL/FAN Relay - Engine Control Module (ECM) (LD8), Powertrain Control Module (PCM) (L26)
R3 CRNK Starter Relay - Starter Motor
R4 POWER/TRAIN Relay - ECM/CRNK, INJ/COIL, PWR TRN, INJ COIL, OXY PST Fuses
R5 SPARE Relay - Spare Relay
R6 RUN/CRNK Relay - ECM IGN 3, HVAC/IPC, TRANS IGN 3, AIR BAG IGN 3 Fuses
R7 COOL/FAN 2 Relay - Engine Control Module (ECM) (LD8) Powertrain Control Module (PCM) (L26), Cooling Fan - Right
R8 WPR Wiper Relay - WPR HI Relay
R9 AIR PUMP Relay - Secondary Air injection (AIR) Pump (NU6)
R10 WPR HI Wiper Relay - Windshield Wiper Motor
R11 A/C Relay - Engine Control Module (ECM) (LD8) Powertrain Control Module (PCM) (L26), A/C Compressor Clutch
R12 AIR/SOL Relay - Secondary Air Injection (AIR) Check Valve (NU6)
Printed Circuit Board (PCB) Relays - Not Serviceable
- HORN PCB Relay - HORN Fuse
- TRN/SIG PCB Relay - LT CRN LAMP Fuse
- TRN/SIG PCB Relay - RT CRN LAMP Fuse
- FOG LAMP PCB Relay - FOG Fuse
- HIGH/BEAM PCB Relay - Both HIGH BEAM Fuses
- LO/BEAM PCB Relay - LT LO BEAM Fuse, RT LO BEAM Fuse
- WSH PCB Relay - WSW/PUMP Fuse