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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 131 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT VIEWS & COMPONENT CONNECTOR END VIEWS)COMPONENT CONNECTOR END VIEWSBODY CONTROL MODULE (BCM) - X1
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Body Control Module (BCM) - X1

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Body Control Module (BCM) - X1
WARNING: This page is about a different car, the 2008 Chevrolet Malibu Classic. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Body Control Module (BCM) X1 Connector End View
GM1376257Courtesy of GENERAL MOTORS CORP.
Body Control Module (BCM) - X1

Pin Wire Circuit Function
1 - - Not Used
2 0.35 L-GN/BK 592 DRL Relay Control
3 0.35 D-GN/WH 636 Ambient Air Temperature Sensor Signal
4 0.35 TN 305 Trunk Key Switch Signal
5 - - Not Used
6 0.35 YE 61 Ground
7-11 - - Not Used
12 0.5 BK 1050 Ground
13 0.35 TN 28 Horn Relay Control
14 - - Not Used
15 0.35 L-BU 2182 Reverse Lamp Relay Control
16 0.35 L-BU 1344 Trunk Release Relay Control
17 - - Not Used
18 0.35 OG/BK 744 Rear Compartment Lid Ajar Switch Signal
19 0.35 YE 317 Fog Lamp Relay Control (T96)
20-21 - - Not Used
22 0.35 D-GN 113 Windshield Wiper Switch Signal 2
23 - - Not Used
24 0.35 WH 17 Stop Lamp Supply Voltage
25 - - Not Used
26 0.35 YE 196 Windshield Wiper Motor Park Switch Signal
27-28 - - Not Used
29 0.35 TN/WH 1969 Headlamp High Beam Relay Control
30-32 - - Not Used
33 0.35 BN/WH 1571 Traction Control Switch Signal (NW7/NW9)
34 - - Not Used
35 0.35 L-GN 262 Driver Door Key Switch Signal
36 - - Not Used
37 0.35 D-GN 5060 Low Speed GMLAN Serial Data
38 0.35 L-BU 14 Left Turn Signal Lamps Supply Voltage
39 - - Not Used
40 0.35 D-GN/WH 1135 A/T Shift Lock Control Solenoid Supply Voltage
41 - - Not Used
42 0.35 WH 17 Stop Lamp Supply Voltage
43-50 - - Not Used
51 0.35 GY/BK 745 Left Front Door Ajar Switch Signal
52 - - Not Used
53 0.35 L-GN/BK 748 Passenger Door Ajar Switch Signal
54 0.35 L-BU/BK 747 Passenger Door Ajar Switch Signal
55 0.35 D-GN 5060 Low Speed GMLAN Serial Data
56 0.35 D-BU 15 Right Turn Signal Lamps Supply Voltage
57 0.35 WH 193 Rear Defog Relay Control
58 0.35 YE 5199 Run/Crank Relay Coil Control
59 0.35 L-BU 1134 Park Brake Switch Signal
60 0.35 PK 849 Brake Fluid Level Sensor Signal
61 0.35 D-GN 5525 Tap Up/Tap Down Enable Signal
62 0.35 TN/WH 99 Windshield Washer Fluid Level Signal
63-64 - - Not Used
65 0.35 WH 1080 Park Lamp Relay Control
66 0.35 WH 682 Door Lock Lock/Unlock Signal
67 0.35 WH 682 Door Lock Lock/Unlock Signal
68 - - Not Used
69 0.35 PK/BK 109 Hood Ajar Switch Signal (AP3/AP8)
70 0.35 PU 5531 Hood Ajar Switch Signal (AP3/AP8)
71 0.35 BN/WH 2091 Trunk Release Switch Supply Voltage
72 0.35 TN/WH 746 Passenger Door Ajar Switch Signal
Connector Part Information 
  • OEM: 15393122
  • Service: 88987847
  • Description: 72-Way F Micro-Pack 64 Series (GY)
Terminal Part Information 
  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.