Chevrolet Silverado (mk1; 1999-2007) fuses and relays

Fuse box diagram (location and assignment of electrical fuses and relays) for Chevrolet Silverado (mk1; 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007).

Fuse Box Diagram Chevrolet Silverado
(mk1; 1999-2007)

1999, 2000, 2001, 2002
2003, 2004, 2005
2006, 2007

Fuse box location

Instrument Panel Fuse Box

The fuse box is located on the side of the instrument panel, on the driver’s side, under the cover

Center instrument panel relay box

The center instrument panel utility block is located underneath the instrument panel, to the left of the steering column

Engine Compartment Fuse Box
Auxiliary Electric Cooling Fan Fuse Block

The auxiliary electric cooling fan fuse block is located in the engine compartment on the driver’s side of the vehicle next to the underhood fuse box

1999, 2000, 2001, 2002

Fuse box diagram (Instrument Panel Fuse Box)

Assignment of the fuses in the Instrument Panel Fuse Box (1999-2002)
FuseUsage
HVAC 1Climate Control System
IGN 3Ignition, Power Seats
BRAKEAnti -Lock Brake System
HTR A/CClimate Control System
IGN 0PRND321 Display, Odometer, PCM
CRUISECruise Control, Instrument Panel Cluster
4WDFour-Wheel Drive System, Auxiliary Battery
TURNExterior Lamps, Turn Signals, Hazard Lamps
RR WIPERNot Used
WS WPRWindshield Wipers
SEO IGNSpecial Equipment Option, Ignition, Manual Selectable Ride
ILLUMInterior Lamps
IGN 1Ignition, Instrument Panel
SEO ACCYSpecial Equipment Option Accessory, Cellular Telephone
L BODYRetained Accessory Power Relay
CRANKStarting System
AIR BAGAir Bag
MIR/LOCKPower Mirrors, Power Door Locks
SEATPower Seat Circuit Breaker
DRLOCKPower Door Locks
RAP #1Retained Accessory Power Relay
LOCKPower Door Locks
INT PRKInterior Lamps
UNLOCKPower Door Locks
DRV UNLOCKPower Door Lock Relay
L DOORPower Door Lock Relay
PWR WDOPower Window Circuit Breaker
RDO 1Audio System
RAP #2Not Used
LOCKPower Door Lock Relay
UNLOCKPower Door Lock Relay

Center instrument panel relay box (1999-2002)

Center instrument panel relay box (1999-2002)
NameUsage
SEOSpecial Equipment Option
HTDSTHeated Seats
SPARE 4Not Used
VANITYHeadliner Wiring
TRAILERTrailer Brake Wiring
PWRSTPower Seats
SPARE 5Not Used
CLUTCHManual Transmission Clutch Switch
UPFUpfitter
PARK LAMPParking Lamps (Relay)
FRT PRK EXPTNot Used (Fuse)
SL RIDEManual Selectable Ride Switch
SPARE 2Not Used
RR PRK LPNot Used (Relay)
RR FOG LPNot Used (Relay)
SPARE 3Not Used
INADV PWRInterior Lights Feed
CTSY LPCourtesy Lamps
CEL PHONECellular Telephone Wiring

Fuse box diagram (Engine Compartment Fuse Box)

*1: INJ B – Gasoline Engine and Diesel Engine
*2: ECM I – Gasoline Engine; ECMRPV – Diesel Engine
*3: 02 A – Gasoline Engine; FUEL HT – Diesel Engine
*4: 02 B – Gasoline Engine; ECM I – Diesel Engine

Assignment of the fuses and relay in the Engine Compartment Fuse Box (1999-2002)
FuseUsage
GLOW PLUGDiesel Glow Plugs and Intake Air Heater
CUST FEEDGasoline Accessory Power
STUD #1Accessory Power/Trailer Wiring Feed
ABSAnti-Lock Brakes
IGN AIgnition Switch
AIRA.I.R. System
RAP #1Retained Accessory - Power, Power Mirrors, Power Door Locks, Power Seat(s)
IGN BIgnition Switch
RAP #2Not Used
STUD #2Accessory Power/Trailer Wiring Brake Feed
SPARESpare Fuse
TRL R TRNRight Turn Signal Trailer Wiring
TRL L TRNLeft Turn Signal Trailer Wiring
IGN 1Ignition, Fuel Controls (Relay)
INJBIgnition, Fuel Controls
STARTERStarter (Relay)
PARK LPParking Lamps
FRT HVACClimate Control System
STOP LPExterior Lamps, Stoplamps
ECM IPCM
ECMRPVFuel Controls, ECM
CHMSLCenter High Mounted Stoplamp
VEH STOPStoplamps, Cruise Control
TRL B/UBackup Lamps Trailer Wiring
INJ AFuel Controls, Ignition
RR HVACNot Used
VEH B/UVehicle Backup Lamps
ENG 1Engine Controls, Canister Purge, Fuel System
ETCElectronic Throttle Control
IGN EA/C Compressor Relay, Rear Window Defogger, Daytime Running Lamps, A.I.R. System
B/U LPBackup Lamps, Automatic Transmission Shift Lock Control System
ATCAutomatic Transfer Case
RR DEFOGRear Window Defogger, Heated Mirrors (Relay)
RR PRKRight Rear Parking Lamps
ECM BPCM
F/PMPFuel Pump (Relay)
02 AOxygen Sensors
FUEL HTFuel Heater, Glow Plug and Intake Heater Controls
02 BOxygen Sensors
LR PRKLeft Rear Parking Lamps
RR DEFOGRear Window Defogger, Heated Mirrors
HDLPHeadlamps (Relay)
TRL PRKParking Lamps Trailer Wiring
RT HDLPRight Headlamps
DRLDaytime Running Lamps (Relay)
HTD MIRHeated Mirrors
LT HDLPLeft Headlamps
A/CAir Conditioning
AUX PWRCigarette Lighter, Auxiliary Power Outlets
SEO 2Special Equipment Option Power, Power Seats, Aux Roof Mnt Lamp
SEO 1Special Equipment Option Power, Aux Roof Mnt Lamp, Cell Phone, OnStar®
DRLDaytime Running Lamps
A/CA/C (Relay)
FOG LPFog Lamps
FOG LPFog Lamps (Relay)
RADIOAudio System, Instrument Cluster, Climate Control System
CIGARCigarette Lighter, Auxiliary Power Outlets
RT TURNRight Turn Signals
BTSIAutomatic Transmission Shift Lock Control System
LT TURNLeft Turn Signals
FR PRKFront Parking Lamps, Sidemarker Lamps
W/W PMPWindshield Washer Pump
HORNHorn (Relay)
IGN CIgnition Switch, Fuel Pump, PRND321 Display, Crank
RDO AMPNot Used
HAZ LPExterior Lamps, Hazard Lamps
EXP LPSNot Used
HORNHorn
CTSY LPInterior Lamps
RR WPRNot Used
TBCBody Control Module, Remote Keyless Entry, Headlamps

2003, 2004, 2005

Fuse box diagram (Instrument Panel Fuse Box)

Assignment of the fuses in the Instrument Panel Fuse Box (2003-2005)
FusesUsage
RR WiperNot Used
SEO ACCYSpecial Equipment Option Accessory
WS WPRWindshield Wipers
TBC ACCYTruck Body Controller Accessory
IGN 3Ignition, Heated Seats
4WDFour-Wheel Drive System, Auxiliary Battery
HTR A/CClimate Control System
LOCK (Relay)Power Door Lock Relay (Lock Function)
HVAC 1Climate Control System
L DOORDriver's Door Harness Connection
CRUISECruise Control, Power Take Off (PTO)
UNLOCK (Relay)Power Door Lock Relay (Unlock Function)
RR FOG LPNot Used
BRAKEAnti-Lock Brake System
DRIVER UNLOCKPower Door Lock Relay (Driver's Door Unlock Function)
IGN 0TCM
TBC IGN 0Truck Body Controller
VEH CHMSLVehicle and Trailer High Mounted Stoplamp
LT TRLR ST/TRNLeft Turn Signal/Stop Trailer
LT TRNLeft Turn Signals and Sidemarkers
VEH STOPVehicle Stoplamps, Brake Module, Electronic Throttle Control Module
RT TRLR ST/TRNRight Turn Signal/Stop Trailer
RT TRNRight Turn Signals and Sidemarkers
BODYHarness Connector
DDMDriver Door Module
AUX PWR 2Not Used
LOCKSPower Door Lock System
ECCNot Used
TBC 2CTruck Body Controller
FLASHFlasher Module
CB LT DOORSLeft Power Windows Circuit Breaker
TBC 2BTruck Body Controller
TBC 2ATruck Body Controller

Center instrument panel relay box (2003, 2004)

Center instrument panel relay box (2003-2007)
DeviceUsage
SEOSpecial Equipment Option
TRAILERTrailer Brake Wiring
UPFITUpftter (Not Used)
SL RIDERide Control Harness Connection
HDLR 2Headliner Wiring Connector
BODYBody Wiring Connector
DEFOGRear Defogger Relay
HDLNR 1Headliner Wiring Connector 1
SPARE RELAYNot Used
CB SEATDriver and Passenger Seat Module Circuit Breaker
CB RT DOORRight Power Windows Circuit Breaker
SPARENot Used
INFOInfotainment Harness Connection

Fuse box diagram (Engine Compartment Fuse Box)

Assignment of the fuses and relay in the Engine Compartment Fuse Box (2003-2005)
FusesUsage
GLOW PLUGDiesel Glow Plugs and Intake Air Heater
CUST FEEDGasoline Accessory Power
STU D #1Auxiliary Power (Single Battery and Diesels Only)/ Dual Battery (TP2) Do not install fuse.
MBECMid Bussed Electrical Center Power Feed, Front Seats, Right Doors
BLOWERFront Climate Control Fan
LBECLeft Bussed Electrical Center, Door Modules, Door Locks, Auxiliary Power Outlet?Rear Cargo Area and Instrument Panel
STUD 2Accessory Power/Trailer Wiring Brake Feed
ABSAnti-Lock Brakes
VSES/ECASVehicle Stability
IGN AIgnition Power
IGN BIgnition Power
LBEC 1Left Bussed Electrical Center, Left Doors, Truck Body Controller, Flasher Module
TRL PARKParking Lamps Trailer Wiring
RR PARKRight Rear Parking and Sidemarker Lamps
LR PARKLeft Rear Parking and Sidemarker Lamps
PARK LPParking Lamps Relay
STARTERStarter Relay
INTPARKInterior Lamps
STOP LPStoplamps
TBC BATTTruck Body Controller Battery Feed
SUNROOFSunroof
SEO B2Off-Road Lamps
4WSVent Solenoid Canister/Quadrasteer Module Power
RR HVACNot Used
AUX PWRAuxiliary Power Outlet 7 Console
IGN 1Ignition Relay
PCM 1Powertrain Control Module
ETC/ECMElectronic Throttle Control, Electronic Brake Controller
IGN EInstrument Panel Cluster, Air Conditioning Relay, Turn Signal/Hazard Switch, Staiter Relay
RTDRide Control
TRL B/UBackup Lamps Trailer Wiring
PCM BPowertrain Control Module, Fuel Pump
F/PMPFuel Pump (Relay)
B/U LPBack-up Lamps, Automatic Transmission Shift Lock Control System
RR DEFOGRear Window Defogger
HDLP-HIHeadlamp High Beam Relay
PRIMENot Used
02BOxygen Sensors
SIRSupplemental ln?atable Restraint System
FRT PARKFront Parking Lamps, Sidemarker Lamps
DRLDaytime Running Lamps (Relay)
SEO IGNRear Defog Relay
TBC IGN1Truck Body Controller Ignition
HI HDLP-LTHigh Beam Headlamp-Left
LH HIDNot Used
DRLDaytime Running Lamps
IPC/DICInstrument Panel Cluster/Driver Information Center
HVAC/ECASClimate Control Controller
CIG LTRCigarette Lighter
HI HDLP-RTHigh Bearn Headlamp-Right
HDLP-LOWHeadlamp Low Beam Relay
A/C COMPAir Conditioning Compressor
A/C COMPAir Conditioning Compressor Relay
RR WPRNot Used
RADIOAudio System
SEO B1Mid Bussed Electrical Center, Rear Heated Seats, HomeLink
LO HDLP-LTHeadlamp Low Beam-Left
BTSIBrake Transmission Shift Interlock System
CRANKStarting System
LO HDLP-RTHeadlamp Low Beam-Right
FOG LPFog Lamp Relay
FOG LPFog Lamps
HORNHorn Relay
W/S WASHWindshield Washer Pump Relay
W/S WASHWindshield Washer Pump
INFOOnStar/Rear Seat Entertainment
RADIO AMPRadio Ampli?er
RH HIDNot Used
HORNHorn
EAPNot Used
TRECAll-Wheel Drive Module
SBASupplemental Brake Assist
RVCRegulated Voltage Control (2005)
INJ 2/15AFuel Injection Rail #2
INJ 1/15AFuel Injection Rail #1
02A/15AOxygen Sensors
02B/15AOxygen Sensors
IGN 1Ignition 1
ECMHPV/15AEngine Control Module
FUEL HT/15AFuel Heater
ECMI/15AEngine Control Module

Auxiliary Electric Cooling Fan Fuse Block

Auxiliary Electric Cooling Fan Fuse Block
FusesUsage
COOL/FANCooling Fan
COOL/FANCooling Fan Relay Fuse
COOL/FANCooling Fan Fuse
Relays
COOL/FAN 1Cooling Fan Relay 1
COOL/FAN 3Cooling Fan Relay 3
COOL/FAN 2Cooling Fan Relay 2

2006, 2007

Fuse box diagram (Instrument Panel Fuse Box)

Assignment of the fuses in the Instrument Panel Fuse Box (2006, 2007)
FusesUsage
RR WPRNot Used
SEO ACCYSpecial Equipment Option Accessory
WS WPRWindshield Wipers
TBC ACCYTruck Body Controller Accessory
IGN 3Ignition, Heated Seats
4WDFour-Wheel Drive System, Auxiliary Battery
HTR A/CClimate Control System
LOCK (Relay)Power Door Lock Relay (Lock Function)
HVAC 1Climate Control System
LT DRDriver's Door Harness Connection
CRUISECruise Control, Power Take Off (PTO)
UNLCK (Relay)Power Door Lock Relay (Unlock Function)
RR FOG LPNot Used
BRAKEAnti-Lock Brake System
DRIVER UNLCKPower Door Lock Relay (Driver's Door Unlock Function)
IGN 0TCM
TBC IGN 0Truck Body Controller
VEH CHMSLVehicle and Trailer High Mounted Stoplamp
LT TRLR ST/TRNLeft Turn Signal/Stop Trailer
LT TRNLeftTurn Signals and Sidemarkers
VEH STOPVehicle Stoplamps, Brake Module, Electronic Throttle Control Module
RT TRLR ST/TRNRight Turn Signal/Stop Trailer
RT TRNRiahtTurn Signals and Sidemarkers
BODYHarness Connector
DDMDriver Door Module
AUX PWR 2, M/GATENot Used
LCKSPower Door Lock System
ECC, TPMTire Pressure Monitoring System
TBC 2CTruck Body Controller
HAZRDFlasher Module
CB LT DRSLeft Power Windows Circuit Breaker
TBC 2BTruck Body Controller
TBC 2ATruck Body Controller

Center instrument panel relay box (2006, 2007)

Center instrument panel relay box (2003-2007)
DeviceUsage
SEOSpecial Equipment Option
TRAILERTrailer Brake Wiring
UPFITUpftter (Not Used)
SL RIDERide Control Harness Connection
HDLR 2Headliner Wiring Connector
BODYBody Wiring Connector
DEFOGRear Defogger Relay
HDLNR 1Headliner Wiring Connector 1
SPARE RELAYNot Used
CB SEATDriver and Passenger Seat Module Circuit Breaker
CB RT DOORRight Power Windows Circuit Breaker
SPARENot Used
INFOInfotainment Harness Connection

Fuse box diagram (Engine Compartment Fuse Box)

Assignment of the fuses and relay in the Engine Compartment Fuse Box (2006, 2007)
FusesUsage
GLOW PLUGDiesel Glow Plugs and Intake Air Heater
CUST FEEDGasoline Accessory Power
HYBRIDHybrid
STUD #1Auxiliary Power (Single Battery and Diesels Only)/ Dual Battery (TP2) Do not install fuse.
MBECMid Bussed Electrical Center Power Feed. Front Seats, Right Doors
BLWRFront Climate Control Fan
LBECLeft Bussed Electrical Center, Door Modules, Door Locks, Auxiliary Power Outlet - Rear Cargo Area and Instrument Panel
STUD #2Accessory Power/Trailer Wiring Brake Feed
ABSAnti-lock Brakes
VSES/ECASVehicle Stability
IGN AIgnition Power
IGN BIgnition Power
LBEC 1Left Bussed Electrical Center, Left Doors, Truck Body Controller, Flasher Module
TRLPARKParking Lamps Trailer Wiring
RR PARKRight Rear Parking and Sidemarker Lamps
LR PARKLeft Rear Parking and Sidemarker Lamps
PARK LPParking Lamps Relay
STRTRStarter Relay
INTPARKInterior Lamps
STOP LPStoplamps
TBC BATTTruck Body Controller Battery Feed
SEO B2Off-Road Lamps
4WSNot Used
AUX PWRAuxiliary Power Outlet - Console
PCM 1Powertrain Control Module
ETC/ECMElectronic Throttle Control, Electronic Brake Controller-Gasoline Engine, Fan Clutch-Diesel Engines
IGN EInstrument Panel Cluster, Air Conditioning Relay, Turn Signal/Hazard Switch, Starter Relay
RTDRide Control
TRL B/UBackup Lamps Trailer Wiring
F/PMPFuel Pump (Relay)
B/U LPBack-up Lamps, Automatic Transmission Shift Lock Control System
RR DEFOGRear Window Defogger
HDLP-HIHeadlamp High Beam Relay
PRIMENot Used
AIRBAGSupplemental ln-atable Restraint System
FRT PARKFront Parking Lamps, Sidemarker Lamps
DRLDaytime Running Lamps (Relay)
SEO IGNRear Defog Relay
TBC IGN1Truck Body Controller Ignition
HI HDLP-LTHigh Beam Headlamp-Left
LH HIDNot Used
DRLDaytime Running Lamps
RVCRegulated Voltage Control
IPC/DICInstrument Panel Cluster/Driver Information Center
HVAC/ECASClimate Control Controller
CIG LTRCigarette Lighter
HI HDLP-RTHigh Beam Headlamp-Right
HDLP-LOWHeadlamp Low Beam Relay
A/C COMPAir Conditioning Compressor Relay
A/C COMPAir Conditioning Compressor
TCMBTransmission Control Module
RR WPRNot Used
RADIOAudio System
SEO B1Mid Bussed Electrical Center, Rear Heated Seats, Universal Home Remote System
LO HDLP-LTHeadlamp Low Beam-Left
BTSIBrake Transmission Shift Interlock System
CRNKStarting System
LO HDLP-RTHeadlamp Low Beam-Right
FOG LPFog Lamps Relay
FOG LPFog Lamps
HORNHorn Relay
W/S WASHWindshield Washer Pump Relay
W/S WASHWindshield Washer Pump
INFOOnStar/Rear Seat Entertainment
RADIO AMPRadio Amplifer
RH HIDNot Used
HORNHorn
EAPNot Used
TRECNot Used
INJ2Fuel Injection Rail #2
INJ 1Fuel Injection Rail #1
02AOxygen Sensors
02BOxygen Sensors
IGN 1Ignition 1
PCM BPowertrain Control Module B
SBASupplemental Brake Assist
ECMEngine Control Module
ACTUATORActuator
FUEL HTRFuel Heater
ECM 1Engine Control Module 1
ECMEngine Control Module
ECM BEngine Control Module B
EV FANElectronic Viscous Fan
RR HVACRear Climate Control
S/ROOFSunroof

Auxiliary Electric Cooling Fan Fuse Block

Auxiliary Electric Cooling Fan Fuse Block
FusesUsage
COOL/FANCooling Fan
COOL/FANCooling Fan Relay Fuse
COOL/FANCooling Fan Fuse
Relays
COOL/FAN 1Cooling Fan Relay 1
COOL/FAN 3Cooling Fan Relay 3
COOL/FAN 2Cooling Fan Relay 2
Chevrolet Silverado (mk1; 1999-2007) fuses and relays November 13, 2018 admin