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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 426 (WIRING SYSTEMS AND POWER MANAGEMENT - INTRODUCTION)SCHEMATIC AND ROUTING DIAGRAMSHARNESS ROUTING VIEWS
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Harness Routing Views

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Harness Routing Views
WARNING: This page is about a different car, the 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Forward Lamp and Components
GM1970124Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 X108 (TT7/TT8)
2 X107 (TT7/TT8)
3 X120
4 X116
5 X122 (LH2/LC3)
6 JX100
7 X124 (LC3)
8 X113
9 X125 (LC3)
10 X123 (LH2/LC3)
11 X121
12 X112
13 X111
Fig 2: Identifying Forward Lamp Splices and Grounds and Components
GM1970127Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 J106
2 J114
3 J110
4 J111
5 J107
6 G104
7 J116
8 G110
Fig 3: Identifying Engine-Front (LLT) and Components
GM1972228Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 G104
2 X101
3 G109
Fig 4: Identifying Engine-Left Rear (LLT) and Components
GM1972223Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 X160
2 X161
3 G112
4 X102
Fig 5: Identifying Engine-Left Rear (LH2) and Components
GM1970132Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 X102
2 X105
3 Valve Cover Ground to Ground Strap
4 Valve Cover Ground
5 X140
Fig 6: Identifying Engine-Right Rear (LH2) and Components
GM1970182Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 X139
2 X100
3 X101
4 X113
5 G107
6 G106
7 Valve Cover Ground
8 G100
9 G107 Ground Strap
10 104
Fig 7: Identifying Engine Harness Splices (LH2)
GM1970189Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 J103
2 J105
3 J115
4 J104
Fig 8: Identifying Instrument Panel Harness-Engine Compartment and Components
GM1970194Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 X103
2 X102
3 JX201
4 X116
5 G101
6 X111
7 X112
Fig 9: Identifying Body Harness-Engine Compartment
GM1970204Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 X100/X118 (LC3)
2 X101
3 X203
Fig 10: Identifying Instrument Panel Harness-Left Side of Instrument Panel
GM1970211Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 JX201
2 X218
3 X202
Fig 11: Identifying Instrument Panel Harness-Right Side of Instrument Panel
GM1970215Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 X209
2 X214
3 X200
Fig 12: Identifying Instrument Panel Harness-Below Center Console and Components
GM1970219Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 X215
2 X201
3 Fuse Block - Steering Column
4 X204
5 X304
Fig 13: Identifying Body Harness-Left Front Passenger Compartment and Components
GM1970225Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 X301
2 X300
3 G200
4 X205
5 X500
6 X204
7 X213
8 X212
9 X201
10 G307
11 JX300
Fig 14: Identifying Body Harness-Right Front Passenger Compartment
GM1970229Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 X217
2 X200
3 X600
4 X307
5 X800
6 G306
7 X318
8 JX303
9 G201
Fig 15: Identifying Body Harness-Left Rear Cargo Compartment and Components
GM1970234Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 X308
2 JX305
3 X320
4 X320
5 Windshield Wiper Inhibit Relay (WCV)
6 X302
7 G402
8 Rear Shelf
Fig 16: Identifying Body Harness-Right Rear Cargo Compartment and Components (1 of 2)
GM1970256Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 G403
2 X310
3 Rear Decklid
4 JX304
5 X305
Fig 17: Identifying Body Harness - Right Rear Cargo Compartment 2 of 2
GM1488394Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Right Rear Fender
2 G401
3 Trunk Compartment Floor Panel
Fig 18: Identifying Headliner Harness (Except CF5) and Components
GM1970272Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 X305
2 J309
3 J308
4 J310
5 X308
Fig 19: Identifying Headliner Harness (CF5) and Components
GM1970281Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 X308
2 X305
3 X309
4 J308
5 X309
6 J310
Fig 20: Identifying Front Doors and Components
GM1970285Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Driver Door
2 Front Passenger Door
3 J601
4 X601
5 J603
6 J600
7 J602
8 X600
9 X500
10 J504
11 J501
12 X501
13 J500
14 J501
Fig 21: Identifying Rear Doors and Components
GM1970296Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Left Rear Door
2 Right Rear Door
3 X801
4 J800
5 X800
6 X700
7 J700
8 X701
Fig 22: Identifying Body Harness Splices and Components
GM1970266Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 J401
2 J305
3 J307
4 J207
5 J205
6 J208
7 J209
8 J303
9 J302
10 J306
11 J317
12 J413
Fig 23: Identifying Body Harness-Rear Underbody and Components
GM1970264Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 X401
2 X400
3 X420
4 X403
Fig 24: Identifying Rear Fascia Harness and Components
GM1970302Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 X401
2 J405
3 J404
4 J403
5 J400
6 X402
7 X403
8 J410
9 X400
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