Explore Chevrolet Tahoe fuse box diagrams in this practical guide that outlines the electrical layout of the second-generation full-size SUV. Here we look at the second-generation Chevrolet Tahoe (Produced from 1999 to 2005) (Model Code: GMT800 ) and provide fuse diagrams for 2000, 2001, 2002, 2003, 2004, 2005 and 2006 , along with the location of the fuse panels and the assignment of each fuse and relay , giving you a reliable reference for troubleshooting and electrical maintenance.
The fuse box is located on the driver’s side of the instrument panel, behind the cover.
The center instrument panel utility block is located underneath the instrument panel, to the left of the steering column.
It is located in the engine compartment on the driver’s side of the vehicle next to the under-hood fuse box.
Fuse Data
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Assignment of the fuses in the Instrument Panel (2000-2002)
Fuse Data
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Short-Code Description L BODY Retained Accessory Power Relay LOCK Power Door Locks DRV UNLOCK Power Door Lock Relay LOCK Power Door Lock Relay HVAC 1 Climate Control System CRUISE Cruise Control, Instrument Cluster IGN 3 Ignition, Power Seats 4WD Four-Wheel Drive System, Auxiliary Battery CRANK Starting System INT PRK Parking Lamps, Sidemarker Lamps, Interior Lamps L DOOR Power Door Lock Relay BRAKE Anti-Lock Brake System RR WIPER Rear Window Wiper ILLUM Interior Lamps SEAT Power Seat Circuit Breaker TURN Exterior Lamps, Turn Signals, Hazard Lamps UNLOCK Power Door Locks HTR A/C Climate Control System WS WPR Windshield Wipers IGN 1 Ignition, Instrument Panel AIR BAG Air Bag MIR/LOCK Power Mirrors, Power Door Locks DR LOCK Power Door Locks PWR WDO Power Window Circuit Breaker UNLOCK Power Door Lock Relay IGN 0 PRND321 Display, Odometer, VCM/PCM SEO IGN Special Equipment Option, Ignition SEO ACCY Special Equipment Option Accessory, Cellular Telephone RAP#1 Retained Accessory Power Relay RDO 1 Audio System RAP #2 Rear Power Windows, Sunroof, Radio
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Fuse Data
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Center instrument panel relay box (2000-2002)
Fuse Data
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Short-Code Description SEO Special Equipment Option HTD ST Heated Seats HDLNR Headliner (2001-2002) VANITY Headliner Wiring TRAILER Trailer Brake Wiring PWR ST Power Seats Y9 Not Used UPF Upfitter PARK LAMP Parking Lamps FRT PRK EXPT Not Used SPARE 2 Not Used PUDDLE LP Not Used / Puddle Lamps (2002) SL RIDE Not Used SPARE 3 Not Used INADAV PWR Interior Lights Feed CTSY LP Courtesy Lamps CEL PHONE Cellular Telephone Wiring
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Fuse Data
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Assignment of the fuses and relay in the Engine Compartment (2000-2002)
Fuse Data
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Short-Code Description STUD #1 Accessory Power/Trailer Wiring Feed/Load Leveling ABS Anti-Lock Brakes IGN A Ignition Switch AIR A.I.R. System RAP #1 Retained Accessory Power, Power Mirrors, Power Door Locks, Power Seat(s) IGN B Ignition Switch RAP #2 Retained Accessory Power/Rear Power Windows, Sunroof, Radio STUD #2 Accessory Power/Trailer Wiring Brake Feed TRL R TRN Right Turn Signal Trailer Wiring TRL L TRN Left Turn Signal Trailer Wiring IGN 1 Ignition, Fuel Controls INJ B Ignition, Fuel Controls (Relay) STARTER Starter (Relay) PARK LP Parking Lamps FRT HVAC Climate Control System STOP LP Exterior Lamps, Stoplamps ECM 1 PCM CHMSL Center High Mounted Stoplamp VEH STOP Stoplamps, Cruise Control TRL B/U Backup Lamps Trailer Wiring INJ A Fuel Controls, Ignition RR HVAC Rear HVAC VEH B/U Vehicle Backup Lamps ENG 1 Engine Controls, Canister Purge, Fuel System ETC Electronic Throttle Control IGN E A/C Compressor Relay, Rear Window Defogger, Daytime Running Lamps, A.I.R. System B/U LP Backup Lamps, Automatic Transmission Shift Lock Control System ATC Automatic Transfer Case RR DEFOG Rear Window Defogger, Heated Mirrors (Relay) RTD Autoride (Real Time Damping) RR PRK Right Rear Parking Lamps ECM B PCM F/PMP Fuel Pump (Relay) O2 A Oxygen Sensors O2 B Oxygen Sensors LR PRK Left Rear Parking Lamps RR DEFOG Rear Window Defogger, Heated Mirrors HDLP Headlamps (Relay) TRL PRK Parking Lamps Trailer Wiring PRIME Not Used RT HDLP Right Headlamps DRL Daytime Running Lamps (Relay) HTD MIR Heated Mirrors LT HDLP Left Headlamps A/C Air Conditioning AUX PWR Cigarette Lighter, Auxiliary Power Outlets SEO 2 Special Equipment Option Power, Power Seats, Aux Roof Mnt Lamp SEO 1 Special Equipment Option Power, Aux Roof Mnt Lamp, Cell Phone, Onstar DRL Daytime Running Lamps A/C A/C (Relay) FOG LP Fog Lamps FOG LP Fog Lamps (Relay) RADIO Audio System, Instrument Cluster, Climate Control System CIGAR Cigarette Lighter, Auxiliary Power Outlets RT TURN Right Turn Signals BTSI Automatic Transmission Shift Lock Control System LT TURN Left Turn Signals FR PRK Front Parking Lamps, Sidemarker Lamps W/W PMP Windshield Washer Pump HORN Horn (Relay) IGN C Ignition Switch, Fuel Pump, PRND321 Display, Crank RDO AMP Radio Amplifier HAZ LP Exterior Lamps, Hazard Lamps EXP LPS Not Used HORN Horn CTSY LP Interior Lamps RR WPR Rear Wipers TBC Body Control Module, Remote Keyless Entry, Headlamps
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Fuse Data
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Assignment of the fuses in the Instrument Panel (2003-2006)
Fuse Data
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Short-Code Description RR Wiper Rear Window Wiper Switch SEO ACCY Special Equipment Option Accessory WS WPR Windshield Wipers TBC ACCY Truck Body Controller Accessory IGN 3 Ignition, Heated Seats 4WD Four-wheel Drive System, Auxiliary Battery HTR A/C Climate Control System LOCK Power Door Lock Relay (Lock Function) HVAC 1 Inside Rearview Mirror, Climate Control System L DOOR Driver’s Door Harness Connection CRUISE CRUISE Control UNLOCK Power Door Lock Relay (Unlock Function) RR FOG LP Rear Fog Lamp (Export Only) BRAKE Anti-Lock Brake System DRIVER UNLOCK Power Door Lock Relay (Drive’s Door Unlock Function) IGN 0 PCM, TCM TBC IGN 0 Truck Body Controller VEH CHMSL Vehicle and Trailer High Mounted Stoplamp LT TRLR ST/TRN Left Turn Signal/Stop Trailer LT TRN Left Turn Signals and Sidemarkers VEH STOP Vehicle Stoplamps, Brake Module, Electronic Throttle Control Module RT TRLR ST/TRN Right Turn Signal/Stop Trailer RT TRN Right Turn Signals and Sidemarkers BODY Harmess Connector DDM Driver Door Module AUX PWR 2 Rear Cargo Area Power Outlet LOCKS Power Door Lock System TBC 2C Truck Body Controller FLASH Flasher Module CB LT DOORS Left Power Window Circuit Breaker TBC 2B Truck Body Controller TBC 2A Truck Body Controller
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Fuse Data
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Center instrument panel relay box (2003-2006)
Fuse Data
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Short-Code Description SEO Special Equipment Option TRAILER Trailer Brake Wiring UPFIT Upfitter (Not Used) SL RIDE Ride Control Harness Connection HDLR 2 Headliner Wiring Connector BODY Body Wiring Connector HDLNR 1 Headliner Wiring Connector 1 SPARE RELAY Not Used CB SEAT Driver and Passenger Seat Module Circuit Breaker CB RT DOOR Right Power Window Circuit Breaker SPARE Not Used INFO Infotainment Harness Connection
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Fuse Data
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Assignment of the fuses and relay in the Engine Compartment (2003-2006)
Fuse Data
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Short-Code Description GLOW PLUG Not Used CUST FEED Gasoline Accessory Power HYBRID Hybrid STUD #1 Auxiliary Power (Single Battery and Diesels Only)/Dual Battery (TP2) Do not install fuse. MBEC Mid Bussed Electrical Center Power Feed, Front Seats, Right Doors BLOWER Front Climate Control Fan LBEC Left Bussed Electrical Center, Door Modules, Door Locks, Auxiliary Power Outlet-Rear Cargo Area and Instrument Panel STUD 2 Accessory Power/Trailer Wiring Brake Feed ABS Anti-Lock Brakes VSES/ECAS Vehicle Stability IGN A Iqnition Power IGN B Iqnition Power LBEC 1 Left Bussed Electrical Center, Left Door, Truck Body Controller, Flasher Module TRL PARK Parking Lamps, Trailer Wiring RR PARK Right Rear Parking and Sidemarker Lamps LR PARK Left Rear Parking and Sidemarker Lamps PARK LP Parking Lamps Relay STARTER Starter Relay INTPARK Interior Lamps STOP LP Stoplamps TBC BATT Truck Body Controller Battery Feed SUNROOF Sunroof SEO B2 Off-Road Lamps 4WS Vent Solenoid Canister/QUADRASTEER Module Power RR HVAC Rear Climate Control AUX HVAC Auxiliary Power Outlet – Console IGN 1 Ignition Relay PCM 1 Powertrain Control Module ETC/ECM Electronic Throttle Control, Electronic Brake Controller IGN E Instrument Panel Cluster, Air Conditioning Relay, Turn Signal/Hazard Switch, Starter Relay RTD Ride Control TRL B/U Backup Lamps Trailer Wiring PCM B Powertrain Control Module, Fuel Pump F/PMP Fuel Pump (Relay) B/U LP Back-up Lamps, Automatic Transmission Shift Lock Control System RR DEFOG Rear Window Defogger HDLP-HI Headlamp High Beam Relay PRIME Not Used AIRBAG Supplemental Inflatable Restraint System FRT PARK Front Parking Lamps, Sidemarker Lamps DRL Daytime Running Lamps (Relay) SEO IGN Rear Defog Relay TBC IGN1 Truck Body Controller Ignition HI HDLP-LT High Beam Headlamp-Left LH HID Not Used DRL Daytime Running Lamps IPC/DIC Instrument Panel Cluster/Driver Information Center HVAC/ECAS Climate Control Controller CIG LTR Cigarette Lighter HI HDLP-RT High Beam Headlamp-Right HDLP-LOW Headlamp Low Beam Relay A/C COMP Air conditioning Compressor A/C COMP Air conditioning Compressor Relay RR WPR Rear Wiper/Washer RADIO Audio System SEO B1 Mid Bussed Electrical Center, HomeLink, Rear Heated Seats LO HDLP-LT Headlamp Low Beam-Left BTSI Brake Transmission Shift Interlock System CRANK Starting System LO HDLP-RT Headlamp Low Beam-Right FOG LP Fog lamp Relay FOG LP Fog Lamp HORN Horn Fuse HORN Horn Relay W/S WASH Windshield and Rear Window Washer Pump Relay W/S WASH Windshield and Rear Window Washer Pump INFO OnStar/Rear Seat Entertainment RADIO AMP Radio Amplifier RH HID Not Used EAP Electric Adjustable Pedals TREC All-Wheel Drive Module SBA Supplemental Brake Assist INJ 2/15A Fuel Injection Rail #2 INJ 1/15A Fuel Injection Rail #1 02A/15A Oxygen Sensors 02B/15A Oxygen Sensors IGN 1 Ignition 1 ECMRPV/15A Engine Control Module FUEL HT/15A Fuel Heater ECM I/15A Engine Control Module
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Fuse Data
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Assignment of the fuses in the Auxiliary Electric Cooling Fan Fuse Block (2003-2006)
Fuse Data
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Short-Code Description COOL/FAN Cooling Fan COOL/FAN Cooling Fan Relay Fuse COOL/FAN Cooling Fan Fuse
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Assignment of the relays in the Auxiliary Electric Cooling Fan Fuse Block (2003-2006)
Fuse Data
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Short-Code Description COOL/FAN 1 Cooling Fan Relay 1 COOL/FAN 2 Cooling Fan Relay 3 COOL/FAN 3 Cooling Fan Relay 2
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