Harness Routing Views. Chevrolet Express 2000

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2000 🢒 Express 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Harness Routing Views

Figure 1:

Forward Lamp Wiring


(1)	G109
(2)	C111
(3)	C102
(4)	G108

Figure 2:

Inflatable Restraint Forward Wiring


(1)	C114

Figure 3:

Forward Lamp Wiring, Horns


(1)	G108
(2)	C102
(3)	C111
(4)	R100

Figure 4:

Generator Wiring


(1)	C 115
(2)	Generator, 100 Amp
(3)	Generator, 124 Amp

Figure 5:

P/B Booster System Wiring


(1)	P103
(2)	C113
(3)	G112
(4)	G108

Figure 6:

4.3L Engine Harness, Right Side


(1)	C110
(2)	G103

Figure 7:

Engine, Upper RH Side (5.0L, 5.7L)


(1)	C112
(2)	A/C Compressor Clutch
(3)	Exhaust Gas Recirculation (EGR) Valve
(4)	Engine Coolant Temperature (ECT) Sensor
(5)	Evaporative Emission (EVAP) Canister Vacuum Switch
(6)	C110
(7)	Ignition Control Module
(8)	Ignition Coil
(9)	Fuel Injectors (1-8)
(10)	Manifold Absolute Pressure (MAP) Sensor

Figure 8:

7.4L Engine Harness, Rear


(1)	C110
(2)	C112
(3)	G103

Figure 9:

Glow Plug Controller (Federal)


(1)	Glow Plug Relay (Federal)

Figure 10:

Automatic Transmission, 4-Speed, 4L60-E


(1)	C 103
(2)	Vehicle Speed Sensor (VSS)
(3)	Park/Neutral Position Switch

Figure 11:

Automatic Transmission, 4-Speed, 4L80-E


(1)	Vehicle Speed Sensor (VSS)
(2)	Park/Neutral Position Switch
(3)	Backup Lamp Switch (Part of Park/Neutral Position Switch)
(4)	Automatic Transmission Input Shaft Speed (A/T ISS) Sensor

Figure 12:

Oxygen Sensor Wiring (5.0L, 5.7L, 7.4L Engines)


(1)	Heated Oxygen Sensor Bank 1, Sensor 2
(2)	Heated Oxygen Sensor Bank 2, Sensor 2
(3)	Catalytic Converter
(4)	Heated Oxygen Sensor Bank 1, Sensor 1
(5)	C105
(6)	Heated Oxygen Sensor Bank 2, Sensor 1

Figure 13:

Wheel Speed Sensor Wiring


(1)	Wheel Speed Sensor, LF
(2)	Wheel Speed Sensor, RF
(3)	Connector C3
(4)	Electronic Brake Control Module (EBCM)

Figure 14:

Electronic Brake Control Module


(1)	Electronic Brake Control Module (EBCM)
(2)	Ignition Feed (C1)
(3)	Wheel Sensor (C2)
(4)	Brake Pressure Differential Switch
(5)	Battery (C3)

Figure 15:

Fuel Pump Wiring


(1)	C301
(2)	Electronic Brake Control Module (EBCM)
(3)	Fuel Lift Pump

Figure 16:

Instrument Panel Wiring, Forward of Dash


(1)	Vehicle Control Module (VCM)
(2)	Cruise Control Module
(3)	P102
(4)	Windshield Wiper Motor

Figure 17:

Bulkhead Connector Harness View


(1)	C100
(2)	P100

Figure 18:

Antenna


(1)	Antenna
(2)	P104

Figure 19:

Instrument Panel, Radio


(1)	Radio Antenna Lead
(2)	Radio
(3)	C204

Figure 20:

Steering Column Wiring


(1)	Steering Column Harness
(2)	C200
(3)	C218
(4)	Steering Column

Figure 21:

IP Fuse Block Wiring


(1)	P103
(2)	C100
(3)	G202
(4)	G201

Figure 22:

Instrument Panel Wiring


(1)	C206
(2)	C208
(3)	C201
(4)	C405

Figure 23:

Convenience Center Connectors


(1)	C202
(2)	C207
(3)	C210

Figure 24:

Power Brake Fluid Flow Alarm And Module


(1)	Resistor R208
(2)	P/B Booster Fluid Flow Alarm
(3)	Diode D202
(4)	Connector C208
(5)	Connector C201
(6)	Park Brake Warning Switch
(7)	P/B Booster Fluid Flow And Pressure Alarm Delay Module (Cutaway-School Bus)

Figure 25:

Front Crossbody Wiring (Right)


(1)	C212
(2)	C300

Figure 26:

Accessory Wiring Harness


(1)	C409
(2)	C415
(3)	P103
(4)	C302

Figure 27:

LH Wiring View


(1)	C215
(2)	C209

Figure 28:

Sunshade Illuminated Mirror Wire


(1)	C303
(2)	C214

Figure 29:

Front Side Door Wiring, Left


(1)	Power Outside Rearview Mirror, Interface Cable
(2)	P500, P600 (Right)
(3)	C211, C212 (Right)
(4)	Radio Speaker, Left Door (Right Opposite)

Figure 30:

Dome Lamp Wiring


(1)	C417
(2)	C405

Figure 31:

Auxiliary Heater and A/C Wiring


(1)	C407
(2)	Auxiliary Blower Motor High Speed Relay
(3)	Auxiliary Blower Motor Medium Speed Relay
(4)	Auxiliary Blower Motor Low Speed Relay
(5)	Auxiliary Blower Motor
(6)	Rear Auxiliary Mode Valve and Seal Assembly (Mode Door Motor)
(7)	Rear Auxiliary Temperature Valve Assembly (Temperature Door Motor)
(8)	Auxiliary Blower Motor Resistor
(9)	C408

Figure 32:

Body Wiring -- Dome Lamps, Rear Window Defroster Relay


(1)	Front Dome Lamp
(2)	Rear Window Defogger Relay
(3)	Rear Dome Lamp
(4)	Body Harness -- LH

Figure 33:

Left Body Wiring


(1)	G400
(2)	C404
(3)	C411
(4)	C408
(5)	C407
(6)	C406
(7)	C402
(8)	G401
(9)	C401
(10)	G402

Figure 34:

Radio Rear Speaker Wiring


(1)	Right Body Harness
(2)	C415
(3)	Left Body Harness
(4)	Radio Speaker, Right Overhead
(5)	Radio Speaker, Left Overhead
(6)	C403

Figure 35:

Rear Defogger Details-Stationary Window


(1)	RR Window/Grid
(2)	Door Lock Actuator Motor, Rear
(3)	Power Door Lock Switch Connector
(4)	P901 LH, P902 RH
(5)	C411 LH, C402 RH
(6)	C400
(7)	C901 LH, C902 RH
(8)	P905 LH, P906 RH

Figure 36:

Rear Defogger Details-Swing Out Window


(1)	RR Window/Grid
(2)	RR Window Latch w/Flex Circuit
(3)	C901 LH, C902 RH
(4)	P905 LH, P906 RH

Figure 37:

Trailer Wiring


(1)	P400
(2)	C406

Figure 38:

Right Rear Door Wiring (LH Similar), Radio Speaker


(1)	C412
(2)	License Lamp
(3)	Door Jamb Switch, Right Rear
(4)	Door lock Actuator Motor, Rear
(5)	Radio Speaker, Right Rear Door (Left Rear Door Opposite)
(6)	P901 RH, P902 LH
(7)	C402
(8)	C400 RH

Figure 39:

Taillamp Assembly Wiring


(1)	P903 LH, P904 RH
(2)	C401 RH, C404 LH

Figure 40:

C419


(1)	C419

Figure 41:

P400


(1)	P400