Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.3 T, 4L60E/M30REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1103 (DATA COMMUNICATION SYSTEM)COMPONENT LOCATORDATA COMMUNICATION CONNECTORSBODY CONTROL MODULE (BCM) X2
2006 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.3 T, 4L60E/M30
Body Control Module (BCM) X2
2006 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.3 T, 4L60E/M30SECTION Body Control Module (BCM) X2
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Body Control Module (BCM) X2 Connector Parts Information
Connector Part InformationÂ
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Terminal Part InformationÂ
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Body Control Module (BCM) X2 Connector Terminal Identification
| Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
| 1 | 0.5 OG | 6815 | Inadvertent Power Supply Voltage |
| 2 | 0.5 RD/WH | 2540 | Battery Positive Voltage |
| 3 | 0.5 BN/WH | 230 | Instrument Panel Lamps Dimming Control |
| 4 | - | - | Not Used |
| 5 | 0.5 GY | 157 | Courtesy Lamp Control |
| 6-7 | - | - | Not Used |
| 8 | 0.35 L-BU | 13 | Headlamp Switch Park Lamps Signal |
| 9-10 | - | - | Not Used |
| 11 | 0.35 WH | 278 | Ambient Light Sensor Signal |
| 12 | 0.35 WH | 103 | Headlamp Switch Headlamps On Signal |
| 13-16 | - | - | Not Used |
| 17 | 0.35 D-GN | 306 | Headlamp Switch Headlamps Off Signal |
| 18 | 0.35 D-BU/WH | 149 | Courtesy Lamp Supply Voltage |
| 19-20 | - | - | Not Used |
| 21 | 0.35 L-BU | 1788 | Traction Control Switch Signal |
| 22 | 0.35 YE | 43 | Accessory Voltage |
| 23-24 | - | - | Not Used |
| 25 | 0.35 PU | 328 | Interior Lamp Defeat Switch Signal |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
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.