GMC Sierra Classic 2500 HD 2007 - 2007 ELECTRCAL Fuses & Circuit Breakers - Sierra Classic & Silverado Classic
GMC Sierra Classic 2500 HD 2007 - IDENTIFICATION
CAUTION: When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See PROGRAMMING AND SETUP article in GENERAL INFORMATION before disconnecting battery.
GMC Sierra Classic 2500 HD 2007 - FUSIBLE LINKS
For information on fusible links and repairing them, refer to illustration. See Fig. 1.
Fig. 1: GMC Sierra Classic 2500 HD 2007 - Component Locations - Repairing Fusible Links
GMC Sierra Classic 2500 HD 2007 - INSTRUMENT PANEL FUSE BLOCK
NOTE: Instrument Panel (I/P) fuse block (left) is located at the left side of the I/P behind the access panel. See Fig. 2.
GMC Sierra Classic 2500 HD 2007 Fuse Block - I/P
Device Rating Description RR WPR Fuse 15A Not Used SEO ACCY Fuse 10A Upfitter Provisions WS WPR Fuse 25A Windshield Wiper Motor and Module TBC ACCY Fuse 10A Body Control Module (BCM) IGN 3 Fuse 10A Rear Wheel Steering Control Module 4WD Fuse 15A Front Axle Actuator, Transfer Case Shift Control Switch, Auxiliary Battery Relay HTR A/C Fuse 30A HVAC Control Module LCK Relay - Door Lock Actuators HVAC 1 Fuse 10A HVAC Control Module, HVAC Actuators L DOOR - 12-WAY - BLACK - Fuse Block - Left I/P C3 (Driver Door Harness) CRUISE Fuse 10A Cruise Control Switch, Cruise Control Module, Steering Wheel Speed/Position Sensor, Power Take-Off (PTO) Switch UNLCK Relay - Door Unlock Actuators RR FOG LP Relay - Not Used BRK Fuse 10A Stop Lamp Switch, Electronic Brake Control Module (EBCM), Clutch Start Switch DRIVER UNLCK Relay - Door Latch Assembly-Driver (Base) IGN O Fuse 10A Passlock Sensor, Automatic Transmission, Powertrain Control Module (PCM) - Gas, Engine Control Module (ECM) - Diesel TBC IGN O Fuse 10A Body Control Module (BCM) VEH CHMSL Fuse 10A Center High Mounted Stop Lamp (CHMSL) LT TRLR ST/TRN Fuse 10A Trailer Wiring Provisions LT TRN Fuse 10A Turn Signal Lamps - Left, Marker Lamps - Left, Driver Door Module (DDM), Instrument Panel Cluster (IPC) VEH STOP Fuse 15A Tail/Stop and Turn Signal Lamps-Rear, Throttle Actuator Control (TAC) BODY - 12-WAY - BROWN - Fuse Block - Left I/P C4 (Body Harness) RT TRLR ST/TRN Fuse 10A Trailer Wiring Provisions RT TRN Fuse 10A Turn Signal Lamps - Right, Marker Lamps - Right, Front Passenger Door Module (FPDM), Instrument Panel Cluster (IPC) DDM Fuse 15A Driver Door Module (DDM) AUX PWR 2/M GATE Fuse 20A Not Used LCKS Fuse 20A Door Lock/Unlock Relays ECC Fuse 10A Not Used TBC 2C Fuse 15A Body Control Module (BCM) HAZRD Fuse 25A Turn Signal/Hazard Flasher Module CB - LT DRS 25A Window Switch - LR, Driver Door Module (DDM) TBC 2B Fuse 15A Body Control Module (BCM) TBC 2A Fuse 15A Body Control Module (BCM)
GMC Sierra Classic 2500 HD 2007 - INSTRUMENT PANEL RELAY BLOCK
NOTE: Instrument panel relay block is located below instrument panel to the left of the steering column.
Fig. 4: GMC Sierra Classic 2500 HD 2007 - Component Locations - Instrument Panel Relay Block
GMC Sierra Classic 2500 HD 2007 Relay Block I/P
Device Rating Description SEO - 6-WAY - BLK - Mobile Radio and Emergency Lighting TRAILER - 6-WAY - BRN - Trailer Provisions UPFIT - 4-WAY - CRM - Upfitter Provisions SL RIDE - 6-WAY - GRY - Manual Selectable Ride (MSR) HDLNR 2 - 6-WAY - CRM - Air Temperature Assembly - Inside, Blower Motor Control Processor, HVAC Actuators, Inside Rearview Mirror BODY - 12-WAY - WHT - Door Courtesy Lamps, Driver/Passenger Seat Modules, Heated Seat Module - LR/RR, Rear Window Defogger Grid, Automatic Occupant Sensing DEFOG Relay (C49) - Rear Window Defogger Grid HDLNR 1 - 6-WAY - BRN - Courtesy Reading Lamps, Garage Door Opener, Inside Rearview Mirror, Vanity Mirror Lamps SPARE Relay - Not Used CB - SEAT 30A Driver/Passenger Seat Modules CB - RT - DOOR 25A Front Passenger Door Module (FPDM), Window Switch - RR SPARE - 4-WAY - GRY - Not Used INFO - 12-WAY - BLK - Rear Seat Audio (RSA) Module, OnStar Module, Audio Amplifier (Bose)
GMC Sierra Classic 2500 HD 2007 - UNDERHOOD FUSE BLOCK
NOTE: Underhood fuse block is located at the left side of the engine compartment to the rear of the battery. See Fig. 5.
Fig. 5: GMC Sierra Classic 2500 HD 2007 - Component Locations - Locating Underhood Fuse Block
GMC Sierra Classic 2500 HD 2007 Fuse Block - Underhood
Device Rating Description STUD 1 Fuse - Trailer Wiring, Auxiliary Battery Relay and Battery Right - TP2, AUX HTR PMP Fuse - HP2, ESCM Fuse - HP2, HCM-B Fuse - HP2 and TRANS PUMP Fuse - HP2 MBEC 1 Fuse 50A SEAT CB, RT DOOR CB BLWR Fuse 40A Blower Motor LBEC 2 Fuse 50A LCKS Fuse, DDM Fuse, PDM Fuse, ECC/TPM Fuse, AUX PWR 2 Fuse STUD 2 Fuse 30A Trailer Wiring, Emergency Vehicle Roof Lamp Relay - 5YO ABS Fuse 60A Electronic Brake Control Module (EBCM) VSES/ECAS Fuse 60A Not Used IGN A Fuse 40A Ignition Switch RUN, START, RUN/START/ACCY, STRTR Relay IGN B Fuse 40A Ignition Switch RUN/ACC, RUN/START LBEC 1 Fuse 50A HAZRD Fuse, TBC 2A Fuse, TBC 2B Fuse, TBC 2C Fuse, LT DOORS C.B. TRL PARK Fuse 15A Trailer Wiring RR PARK Fuse 10A Exterior Lamps - Right Rear, Clearance Lamps - Right LR PARK Fuse 10A Exterior Lamps - Left Rear, Clearance Lamps - Left PARK LP Relay - TRL PARK Fuse, LR PARK Fuse, RR PARK Fuse, FRT PARK Fuse, INT PARK Fuse STRTR Relay - Starter INTPARK Fuse 10A Power Take-Off (PTO) Switch, Inflatable Restraint I/P Module Disable Switch, HD Trailering Equipment Provisional - Z82 STOP LP Fuse 25A Stop Lamp Switch TBC BATT Fuse 10A Body Control Module (BCM) S/ROOF Fuse 25A Sunroof Module Control SEO B2 Fuse 30A Roof Beacon Relay - 5G4 4WS Fuse 15A Evaporative Emission (EVAP) Canister Vent Solenoid RR HVAC 30A Not Used AUX PWR Fuse 20A Accessory Power Outlets, Auxiliary Power Outlets PCM 1 Fuse 15A Powertrain Control Module (PCM), Mass Air Flow (MAF) Sensor, Evaporative Emission (EVAP) Canister Purge Solenoid, Fuel Composition Sensor, Secondary Fuel Pump Relay ETC/ECM Fuse 15A Throttle Actuator Control (TAC) INJ 1 Fuse (Gas)/ACTUATOR Fuse (Diesel) #2 15A Fuel Injectors - Odd-Numbered, Ignition Coils - Odd-Numbered - Gas 15A Engine Control Module (ECM) - Diesel INJ 2 Fuse (Gas)/ECM Fuse (Diesel) #1 15A Fuel Injectors - Even-Numbered, Ignition Coils - Even-Numbered - Gas 25A Engine Control Module (ECM) - Diesel IGN E Fuse 10A A/C COMP Relay, Park/Neutral Position (PNP) Switch, Turn Signal/Multifunction Switch, Headlamp Leveling Components, Clutch Start Switch IGN 1 Relay (Gas)/ECM Relay (Diesel) #5 - SBA Fuse, ETC/ECM Fuse, PCM 1 Fuse, INJ 1 Fuse, INJ 2 Fuse - ACTUATOR Fuse, ECM Fuse - Diesel RTD Fuse 30A Not Used TRL B/U Fuse 10A Body Control Module (BCM), Trailer Wiring, Backup Alarm PCM B Fuse (Gas)/ECM B Fuse (Diesel) 20A Powertrain Control Module, F/PMP Relay - Gas 20A Engine Control Module (ECM ) - Diesel F/PMP Relay - Fuel Pump O2 A Fuse (Gas)/FUEL HTR Fuse (Diesel) #3 15A Heated Oxygen Sensors - Upstream - Gas 15A Fuel Heater, Glow Plug Controller, Intake Air (IA) Heater Relay, EGR System Components - Diesel B/U LP Fuse 20A Park/Neutral Position (PNP) Switch - A/T, Backup Lamp Switch - M/T RR DEFOG Fuse 30A DEFOG Relay HDLP - HI Relay - HI HDLP - LT Fuse, HI HDLP - RT Fuse O2 B Fuse (Gas)/EMC 1 Fuse (Diesel) #4 15A Heated Oxygen Sensors - Downstream - Gas 15A MAF/IAT Sensor, Engine Control Module (ECM) - Diesel AIRBAG Fuse 15A Inflatable Restraint Sensing and Diagnostic Module (SDM), Memory Seat Module-Passenger, Inside Rearview Mirror FRT PARK Fuse 10A Park/Turn Signal Lamps - Front, Marker Lamps - Front DRL Relay - DRL Lamp - LT, DRL Lamp - RT SEO IGN Fuse 10A DEFOG Relay, Instrument Panel Cluster (IPC) - (8S8), Selectable Ride Switch - ZX3 TBC IGN 1 Fuse 10A Body Control Module (BCM) HI HDLP-LT Fuse 10A Headlamp - High Beam - Left LH HID Fuse 20A Not Used DRL Fuse 10A DRL Relay RVC Fuse 10A Generator Battery Control Module IPC/DIC Fuse 10A Instrument Panel Cluster (IPC) HVAC/ECAS Fuse 10A HVAC Control Module CIG LTR Fuse 15A Cigar Lighter, Data Link Connector (DLC) HI HDLP RT Fuse 10A Highbeam Headlamp - Right HDLP-LOW Relay - LO HDLP - LT Fuse, LO HDLP - RT Fuse A/C COMP Relay - A/C Compressor Clutch A/C COMP Fuse 10A A/C Compressor Clutch Relay TCM B 10A Transmission Control Module (TCM) RR WPR 25A Not Used RADIO Fuse 15A Radio, Rear Seat Audio (RSA), Digital Radio Receiver - U2K SEO B1 Fuse 15A Instrument Panel Cluster (IPC) - 8S8, Overhead Console, Roof Beacon Switch LO HDLP-LT Fuse 10A Headlamp - Low Beam - Left BTSI Fuse 10A Stop Lamp Switch CRNK Fuse 10A Powertrain Control Module (PCM) - Gas, Engine Control Module (ECM) - Diesel, Transmission Control Module (TCM) - MW7 LO HDLP-RT Fuse 10A Headlamp - Low Beam - Right FOG LP Relay - Fog Lamp - RF, Fog Lamp - LF FOG LP Fuse 15A FOG LP Relay HORN Relay - HORN Fuse W/S WASH Relay - Windshield Washer Fluid Pump W/S WASH Fuse 15A W/S WASH Relay INFO Fuse 15A Vehicle Communication Interface Module (VCIM) - UE1, Rear Seat Entertainment (RSE) Assembly - U42, Remote Playback Device - CD Player - U1S RADIO AMP Fuse 30A Audio Amplifier RH HID Fuse 20A Not Used HORN Fuse 15A Horn - Left, Horn - Right EAP Fuse 15A Not Used TREC Fuse 30A Transfer Case Encoder Motor, Transfer Case Shift Control Module SBA Fuse 15A Supplemental Brake Assist (SBA), Fuel Pump Relay - Secondary - w/o NQZ
GMC Sierra Classic 2500 HD 2007 - UNDERHOOD COOLING FAN FUSE BLOCK (10 SERIES)
NOTE: Underhood cooling fan fuse block is located on left side of engine compartment to the rear of the battery.
GMC Sierra Classic 2500 HD 2007 Fuse Block - Underhood - Cooling Fan (10 Series)
Device Rating Description Cool/Fan Fuse 40A Cool/Fan 1 Relay Cool/Fan Fuse 40A Cool/Fan 2 Relay Cool/Fan Fuse 10A Cool/Fan 3 Relay Cool/Fan 1 Relay - Cooling Fan - Left Cool/Fan 2 Relay - Cooling Fan - Left and Right High Speed Cool/Fan 3 Relay - Cooling Fan - Left and Right Low Speed
GMC Sierra Classic 2500 HD 2007 - UNDERHOOD FUSE BLOCK - SECONDARY (HP2)
NOTE: Underhood secondary fuse block is located in left side of engine compartment to the rear of battery.
GMC Sierra Classic 2500 HD 2007 Fuse Block - Underhood - Secondary (HP2)
Device Rating Description HYBRID PWR Fuse 30A Electronic Power Take-Off (EPTO) Switch, AUX HTR PMP and TRANS PMP Relays, Heated Oxygen Sensors HYBRID O2B 15A Heated Oxygen Sensors Bank 2 Sensor 1 and Bank 1 Sensor 2 AUX HTR PUMP 10A AUX HTR Pump Relay ESCM 15A Energy Storage Control Module (ESCM) HCM-I 10A Starter Generator Control Module and Hybrid Control Module (HCM) HYBRID O2A 15A Heated Oxygen Sensor Bank 2 Sensor 1 and Bank 1 Sensor 1 TRANS PUMP 15A Trans Pump Relay HCM-B 10A Hybrid Control Module (HCM) EHPS-I 10A Electro Hydraulic Power Steering (EHPS) Module COOL PUMP 15A Starter/Generator Control Module Coolant Pump PWR MAINT 10A Electronic Power Take-Off (EPTO) Switch, AUX HTR Pump Relay, TRANS PMP Relay, and Park/Neutral Position Switch SCGM COOL PUMP/FAN RELAY - REDBOX Coolant Pump and Fan AUX HTR PUMP RELAY - Auxiliary Heater Pump TRANS PUMP RELAY - Transmission Pump PWR MAINT RELAY - Electronic Power Take-Off (EPTO) Switch, AUX HTR Pump Relay, TRANS PMP Relay, Park/Neutral Position Switch, and Heated Oxygen Sensors