Chevrolet Colorado 2004 - 2004 GENERAL MOTORS Canyon & Colorado

Chevrolet Colorado 2004 - BUZZERS, RELAYS & TIMERS

Chevrolet Colorado 2004 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C COMP Relay	On underhood fuse block. See Fig. 17.
BEAM SEL Relay	On underhood fuse block. See Fig. 17.
FOG LP Relay	On underhood fuse block. See Fig. 17.
FUEL PUMP Relay	On underhood fuse block. See Fig. 17.
HD LP Relay	On underhood fuse block. See Fig. 17.
HORN Relay	On underhood fuse block. See Fig. 17.
IGN 3 HVAC Relay	On underhood fuse block. See Fig. 17.
PARK LP Relay	On underhood fuse block. See Fig. 17.
POWERTRAIN Relay	On underhood fuse block. See Fig. 17.
RAP Relay	On underhood fuse block. See Fig. 17.
RUN/CRANK Relay	On underhood fuse block. See Fig. 17.
START Relay	On underhood fuse block. See Fig. 17.
WIPER Relay	On underhood fuse block. See Fig. 17.
WIPER 2 Relay	On underhood fuse block. See Fig. 17.

Chevrolet Colorado 2004 - CIRCUIT PROTECTION DEVICES

Chevrolet Colorado 2004 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Underhood Fuse Block	On left front side of engine compartment. See Fig. 22.

Chevrolet Colorado 2004 - CONTROL UNITS

Chevrolet Colorado 2004 CONTROL UNITS LOCATION

Component	Location
Body Control Module (BCM)	Behind right kick panel. See Fig. 32.
Electronic Brake Control Module (EBCM)	On inner left frame rail, beside transmission. See Fig. 19.
Electronic Brake Control Module (EBCM) Connector	On inner left frame rail, beside transmission. See Fig. 19.
HVAC Module Assembly	Under dash. See Fig. 18.
Inflatable Restraint I/P Module	Right side of dash. See Fig. 10.
Inflatable Restraint I/P Module Connector	Right side of dash. See Fig. 10.
Inflatable Restraint Roof Rail Module Connector (Right)	Right "A" pillar. See Fig. 9.
Inflatable Restraint Roof Rail Module (Left)	In roof above driver door. See Fig. 9.
Inflatable Restraint Roof Rail Module (Right)	In roof above front passenger door. See Fig. 9.
Inflatable Restraint Roof Rail Sensor Connector (Left)	Left "A" pillar. See Fig. 9.
Inflatable Restraint Sensing & Diagnostic Module	Beneath center console. See Fig. 11.
Inflatable Restraint Steering Wheel Module	Top of steering wheel. See Fig. 10.
Powertrain Control Module (PCM)	Right rear corner of engine compartment. See Fig. 26.
Transfer Case Shift Control Module	Under driver's seat. See Fig. 32 & Fig. 33 .
Vehicle Communication Interface Module (VCIM)	Right side of dash. See Fig. 13.

Chevrolet Colorado 2004 - MOTORS

Chevrolet Colorado 2004 MOTORS LOCATION

Component	Location
Blower Motor	Below right side of dash. See Fig. 18.
Door Lock Actuator (Driver)	In lower rear of door. See Fig. 16.
Front Axle Actuator	On right center of front axle housing. See Fig. 3.
Fuel Pump & Sender Assembly	Top of fuel tank. See Fig. 27.
Recirculation Actuator	Right side of dash. See Fig. 18.
Starter	Left rear side of engine. See Fig. 22.
Transfer Case Encoder Motor C1	Front of transfer case. See Fig. 27.
Transfer Case Encoder Motor C2	Front of transfer case. See Fig. 27.
Transfer Case Encoder Motor C3	Rear of transfer case. See Fig. 27.
Window Motor (Driver)	In lower front of door. See Fig. 16.
Windshield Washer Fluid Pump	On washer fluid reservoir. See Fig. 31.
Windshield Wiper Motor	Left rear of engine compartment. See Fig. 31.

Chevrolet Colorado 2004 - SENDING UNITS & SENSORS

Chevrolet Colorado 2004 SENDING UNITS & SENSORS LOCATION

Component	Location
Accelerator Pedal Position Sensor	On accelerator bracket. See Fig. 1.
Accelerator Pedal Position Sensor Connector	On accelerator bracket. See Fig. 1.
A/C Refrigerant Pressure Sensor	Right rear of engine compartment. See Fig. 31.
Camshaft Position (CMP) Sensor 1 (3.5L)	Top right front of engine. See Fig. 30.
Camshaft Position (CMP) Sensor 2 (3.5L)	Top left front of engine. See Fig. 30.
Camshaft Position (CMP) Sensor (2.8L)	Top tight front of engine. See Fig. 25.
Crankshaft Position (CKP) Sensor	Left rear of engine block, below starter. See Fig. 24.
Engine Coolant Temperature (ECT) Sensor (2.8L)	On left rear of engine. See Fig. 23.
Engine Coolant Temperature (ETC) Sensor (3.5L)	On left rear of engine. See Fig. 28.
Engine Oil Pressure (EPO) Sensor (2.8L)	Right front of engine. See Fig. 23.
Engine Oil Pressure (EPO) Sensor (3.5L)	Right front of engine. See Fig. 28.
Evaporative Temperature Sensor	Lower right side of dash. See Fig. 18.
Fuel Pump & Sender Assembly	On top of fuel tank. See Fig. 27.
Fuel Tank Pressure (FTP) Sensor	At top left rear of fuel tank. See Fig. 27.
G Sensor	Below driver seat. See Fig. 32.
Heated Oxygen Sensor (HO2S) 1 Connector (2.8L)	Right side of engine compartment. See Fig. 23.
Heated Oxygen Sensor (HO2S) 1 (2.8L)	Right side of engine, on exhaust manifold. See Fig. 23.
Heated Oxygen Sensor (HO2S) 1 (3.5L)	Right side of engine, on exhaust manifold. See Fig. 28.
Heated Oxygen Sensor (HO2S) 2	In exhaust pipe, adjacent to transmission. See Fig. 27.
Inflatable Restraint Front End Sensor (Left)	On left underside of front frame crossmember. See Fig. 9.
Inflatable Restraint Front End Sensor (Right)	On right underside of front frame crossmember. See Fig. 9.
Inflatable Restraint Side Impact Sensor (Left)	Lower rear of driver door. See Fig. 11.
Inflatable Restraint Side Impact Sensor (Right)	Lower rear of front passenger door. See Fig. 11.
Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor	In air intake duct, top right of engine. See Fig. 25.
Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor Connector	In air intake duct, top right of engine. See Fig. 25.
Knock Sensor 1 Front (3.5L)	Near front of engine, below intake manifold. See Fig. 29.
Knock Sensor 2 Rear (3.5L)	Near rear of engine, below intake manifold. See Fig. 29.
Knock Sensor (2.8L)	Top left rear of engine. See Fig. 24.
Manifold Absolute Pressure (MAP) Sensor	Top right side of engine, on intake manifold. See Fig. 24.
Vehicle Speed Sensor (2WD)	On left rear of transfer case. See Fig. 2.
Vehicle Speed Sensor (4WD)	On left rear of transfer case. See Fig. 7.
Wheel Speed Sensor (Left Front)	On left front hub. See Fig. 20.
Wheel Speed Sensor (Right Front)	On right front hub. See Fig. 20.

Chevrolet Colorado 2004 - SOLENOIDS & SOLENOID VALVES

Chevrolet Colorado 2004 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
A/C Compressor Clutch	Left front of engine. See Fig. 24.
A/T Shift Lock Control Solenoid	Under center console, left side of shifter. See Fig. 1.
A/T Shift Lock Control Solenoid Connector	Under center console, left side of shifter. See Fig. 1.
Camshaft Position (CMP) Actuator Solenoid - Bank 1 Exhaust	On top right front of engine. See Fig. 24.
Evaporative Emission (EVAP) Canister Purge Solenoid	Top of engine rear of throttle body. See Fig. 24.
Evaporative Emission (EVAP) Canister Vent Solenoid	Front of fuel tank. See Fig. 27.
Fuel Injector 1 (2.8L)	Top of engine, attached to fuel rail. See Fig. 23.
Fuel Injector 1 (3.5L)	Top of engine, attached to fuel rail. See Fig. 28.
Fuel Injector 2 (2.8L)	Top of engine, attached to fuel rail. See Fig. 23.
Fuel Injector 2 (3.5L)	Top of engine, attached to fuel rail. See Fig. 28.
Fuel Injector 3 (2.8L)	Top of engine, attached to fuel rail. See Fig. 23.
Fuel Injector 3 (3.5L)	Top of engine, attached to fuel rail. See Fig. 28.
Fuel Injector 4 (2.8L)	Top of engine, attached to fuel rail. See Fig. 23.
Fuel Injector 4 (3.5L)	Top of engine, attached to fuel rail. See Fig. 28.
Fuel Injector 5 (3.5L)	Top of engine, attached to fuel rail. See Fig. 28.
Ignition Coil 1 (2.8L)	On top of left valve cover. See Fig. 23.
Ignition Coil 1 (3.5L)	On top of left valve cover. See Fig. 28.
Ignition Coil 2 (2.8L)	On top of right valve cover. See Fig. 23.
Ignition Coil 2 (3.5L)	On top of right valve cover. See Fig. 28.
Ignition Coil 3 (2.8L)	On top of left valve cover. See Fig. 23.
Ignition Coil 3 (3.5L)	On top of left valve cover. See Fig. 28.
Ignition Coil 4 (2.8L)	On top of right valve cover. See Fig. 23.
Ignition Coil 4 (3.5L)	On top of right valve cover. See Fig. 28.
Ignition Coil 5 (3.5L)	On top of left valve cover. See Fig. 28.
Pressure Control Solenoid Valve	In automatic transmission. See Fig. 4.
Torque Converter Clutch Pulse Width Modulation (TCCPWM) Solenoid Valve	In automatic transmission. See Fig. 4.
Torque Converter Clutch (TCC) Solenoid Valve	In automatic transmission. See Fig. 4.
1-2 Shift Solenoid Valve	In automatic transmission. See Fig. 4.
2-3 Shift Solenoid Valve	In automatic transmission. See Fig. 4.
3-1 Shift Solenoid Valve Assembly	In automatic transmission. See Fig. 4.

Chevrolet Colorado 2004 - SWITCHES

Chevrolet Colorado 2004 SWITCHES LOCATION

Component	Location
Accelerator Pedal Position (APP) Sensor	On accelerator bracket. See Fig. 26.
Back-Up Lamp Switch	Left side of engine compartment, on top of transmission.
Brake Fluid Level Switch	On brake fluid reservoir. See Fig. 31.
Clutch Start Switch	Top of clutch pedal assembly. See Fig. 14.
Clutch Start Switch Connector	Top of clutch pedal assembly. See Fig. 14.
Clutch Switch	Lower left side of dash. See Fig. 14.
Clutch Switch Connector	Lower left side of dash. See Fig. 14.
Door Jamb Switch (Driver)	Inside left front door. See Fig. 32 & Fig. 33 .
Door Jamb Switch (Front Passenger)	Inside right front door. See Fig. 32.
Door Jamb Switch (Left Rear) (Crew Cab)	Inside left rear door. See Fig. 34 & Fig. 35 .
Door Jamb Switch (Right Rear) (Crew Cab)	Inside right rear door. See Fig. 34 & Fig. 35 .
Park Brake Switch	Lower left end of dash. See Fig. 21.
Park Brake Switch Connector	Lower left end of dash. See Fig. 21.
Park/Neutral Position (PNP) Switch	On lower left side of transmission. See Fig. 5.
Seat Belt Switch (Driver)	At driver side seat belt latch. See Fig. 8.
Stop Lamp Switch	Above brake pedal assembly. See Fig. 14.
Stop Lamp Switch Connector	Above brake pedal assembly. See Fig. 14.
TCC Brake/Cruise Release Switch	Above brake pedal assembly. See Fig. 14.
TCC Brake/Cruise Release Switch Connector	Above brake pedal assembly. See Fig. 14.

Chevrolet Colorado 2004 - MISCELLANEOUS

Chevrolet Colorado 2004 MISCELLANEOUS LOCATION

Component	Location
Battery	Left side of engine compartment. See Fig. 22.
Battery Positive Terminal	Top of battery. See Fig. 22.
Blower Motor Resistor Assembly	Lower right side of dash, near blower motor. See Fig. 18.
Data Link Connector (DLC)	Lower left side of dash. See Fig. 13.
Digital Radio Receiver	Center of dash. See Fig. 15.
Engine Bock Heater	Top of engine. See Fig. 24.
Generator	Left front side of engine. See Fig. 22.
Generator Positive Voltage Connector	On generator, left front of engine. See Fig. 22.
Ring Terminal Battery	Next to underhood fuse block. See Fig. 22.
Ring Terminal Generator	Next to underhood fuse block. See Fig. 22.
Seat Belt Pretensioner Connector (Left Front) (Extended Cab)	In left rear door. See Fig. 12.
Seat Belt Pretensioner (Left Front) (Extended Cab)	In left rear door. See Fig. 12.
Seat Belt Pretensioner (Left) (Regular/Crew Cab)	In left "B" pillar. See Fig. 10.
Seat Belt Pretensioner (Right) (Regular/Crew Cab)	In right "B" pillar. See Fig. 10.

Chevrolet Colorado 2004 - CONNECTORS

Chevrolet Colorado 2004 CONNECTORS LOCATION

Component	Location
C100 (Black, 4 Pin)	Engine harness to front axle jumper harness, in engine compartment.
C101 (2.8L) (Black, 5 Pin)	Engine harness to fuel rail harness, in engine compartment.
C101 (3.5L) (Black, 6 Pin)	Engine harness to fuel rail harness, in engine compartment.
C102 (Black, 16 Pin)	Body harness to chassis harness, in engine compartment. See Fig. 31.
C103 (Black, 2 Pin)	Forward lamp harness to body harness, in engine compartment. See Fig. 31.
C104 (Black, 8 Pin)	Forward lamp harness to body harness, in engine compartment. See Fig. 31.
C105 (Black, 10 Pin)	Engine harness to body harness, in engine compartment. See Fig. 31.
C106 (Black, 2 Pin)	Engine harness to body harness, in engine compartment. See Fig. 31.
C107 (Black, 3 Pin)	Forward lamp harness to front turn signal harness, behind right front park/turn signal lamp.
C108 (Black, 3 Pin)	Forward lamp harness to front turn signal harness, behind left front park/turn signal lamp.
C175 (Natural, 20 Pin)	Engine harness to transmission harness, right side of transmission. See Fig. 6.
C200 (Black, 40 Pin)	I/P harness to body harness, behind dash. See Fig. 32 & Fig. 33 .
C201 (Light Gray, 22 Pin)	I/P harness to body harness, behind dash). See Fig. 32.
C202 (Blue, 9 Pin)	Driver door harness to body harness, behind dash. See Fig. 16.
C203 (Black, 10 Pin)	I/P harness to HVAC harness, behind right side dash. See Fig. 18.
C204 (Light Gray, 22 Pin)	Steering column harness to I/P harness, at base of steering column.
C208 (Yellow, 4 Pin)	I/P harness to body harness, behind dash. See Fig. 32 & Fig. 33 .
C209 (Natural, 18 Pin)	Body harness to driver door harness, lower left side of dash). See Fig. 16.
C210 (Natural, 18 Pin)	Body harness to passenger door harness, lower right side of dash. See Fig. 32 & Fig. 33 .
C211 (Blue, 9 Pin)	Passenger door harness to body harness, lower right side of dash. See Fig. 32 & Fig. 33 .
C275 (Yellow, 4 Pin)	I/P harness to steering wheel harness, behind dash. See Fig. 1.
C307 (Black, 7 Pin)	Body harness to driver seat harness, below driver seat.
C310 (Natural, 2 Pin)	Dome lamp harness to body harness, in headliner. See Fig. 32 & Fig. 33 .
C311 (Yellow, 2 Pin)	Body harness to right rear passenger door harness, in right rear door.
C312 (Yellow, 2 Pin)	Body harness to left rear passenger door harness, in left rear door. See Fig. 12.
C313 (Black, 4 Pin)	Body harness to passenger seat harness, under passenger seat. See Fig. 32.
C314 (Black, 4 Pin)	Body harness to driver seat harness, under driver seat. See Fig. 32 & Fig. 33 .
C315 (Black, 5 Pin)	Body harness to passenger seat harness, under passenger seat.
C316 (Crew Cab W/O Power Windows) (Black, 2 Pin)	Body harness to left rear passenger door harness, in left rear door.
C316 (Crew Cab W/ Power Windows) (Natural, 10 Pin)	Body harness to left rear passenger harness, in left rear door.
C316 (Extended Cab) (Black, 4 Pin)	Body harness to left rear passenger door harness, in left rear door. See Fig. 12.
C317 (Crew Cab W/O Power Windows) (Black, 2 Pin)	Body harness to right rear passenger door harness, in right rear door. See Fig. 34.
C317 (Crew Cab W/ Power Windows) (Natural, 10 Pin)	Body harness to right rear passenger door harness, in right rear door. See Fig. 34.
C317 (Extended Cab) (Black, 4 Pin)	Body harness to right rear passenger door harness, in right rear door.
C318 (Black, 4 Pin)	Passenger seat harness to heated element, in passenger seat.
C319 (Black, 4 Pin)	Driver seat harness to heat element, in driver seat.
C400 (Black, 2 Pin)	Chassis harness to license lamp harness, behind license lamps. See Fig. 37.
C401 (Black, 6 Pin)	Chassis harness to left rear lamp assembly, behind left rear lamps. See Fig. 37.
C402 (Black, 5 Pin)	Chassis harness to right rear lamp assembly, behind right rear lamps. See Fig. 37.

Chevrolet Colorado 2004 - GROUNDS

Chevrolet Colorado 2004 GROUNDS LOCATION

Component	Location
G100	Next to rear side of battery. See Fig. 22.
G101	Lower left side of engine. See Fig. 29.
G102	Lower left side of engine. See Fig. 29.
G103	Lower left side of engine. See Fig. 29.
G104	Left side of engine. See Fig. 22.
G105	Left side of engine compartment. See Fig. 31.
G106	Right side of engine compartment. See Fig. 31.
G300	Under driver seat. See Fig. 32 & Fig. 33 .
G301	Under front passenger seat. See Fig. 32.
G302	Between front seats. See Fig. 32.

Chevrolet Colorado 2004 - SPLICES

Chevrolet Colorado 2004 SPLICES LOCATION

Component	Location
SP105	Left side of engine compartment. See Fig. 31.
SP106	Right side of engine compartment. See Fig. 31.
S100	Body harness, 14.5 cm from accelerator pedal position switch breakout. See Fig. 36.
S102	Body harness, 8 cm from accelerator pedal position switch breakout. See Fig. 36.
S103	Fuel injector harness, 5 cm from fuel injector 4 breakout.
S104	Fuel injector harness, 4 cm from fuel injector 4 breakout.
S110	Chassis harness, 39 cm before fuel pump & sender assembly.
S133	Automatic transmission harness.
S200	I/P harness, 6 cm from instrument cluster breakout.
S201	I/P harness, 7 cm from C204 breakout.
S202	HVAC harness, 14 cm from recirculation actuator breakout toward blower motor resistor assembly.
S300	Body harness, 5 cm from G300 breakout. See Fig. 36.
S301	Body harness, 12 cm from C314 breakout. See Fig. 36.
S302	Body harness, 4 cm from accelerator pedal position switch breakout. See Fig. 36.
S303	Body harness, 6 cm from C209 breakout. See Fig. 32 & Fig. 33 .
S304	Body harness, 6 cm from accelerator pedal position switch breakout.
S306	Driver seat harness, 5 cm from C319 breakout.
S307	Body harness, 4 cm from accelerator pedal position breakout. See Fig. 36.
S308	Body harness, 10.5 cm from accelerator pedal position switch breakout. See Fig. 36.
S309	Body harness, 17 cm from accelerator pedal position switch breakout. See Fig. 36.
S310	Chassis harness, 39 cm before fuel pump & sender assembly. See Fig. 37.
S311	Body harness, 24.5 cm from G302 breakout. See Fig. 36.
S312	Driver seat harness, 12.5 cm from C319 breakout.
S313	Passenger seat harness, 12.5 cm from C318 breakout.
S314	Passenger seat harness, 5 cm from C319 breakout.
S316	Passenger heated element harness.
S317	Passenger heater element harness.
S318	Passenger heater element harness.
S319	Passenger heater element harness.
S320	Driver heater element harness.
S321	Driver heater element harness.
S322	Driver heater element harness.
S400	Chassis harness, 40.5 cm from fuel pump & sender assembly breakout. See Fig. 37.
S401	Chassis harness, 21 cm from fuel pump & sender assembly breakout. See Fig. 37.
S402	Chassis harness, 13 cm from C401 & C402 breakout. See Fig. 37.
S403	Chassis harness, 14 cm from C401 & C402 breakout. See Fig. 37.
S404	Chassis harness, 75.5 cm before C402. See Fig. 37.
S500	Driver door harness, 5 cm from left front door tweeter speaker breakout.
S900	License lamp harness, 44.5 cm before right license lamp. See Fig. 38.
S901	License lamp harness, 24 cm from C400 breakout. See Fig. 38.