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 MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 663 (COMPUTER/INTEGRATING SYSTEMS)COMPONENT LOCATORCOMPUTER/INTEGRATING SYSTEMS CONNECTORSBODY CONTROL MODULE (BCM) - C6
2006 Chevrolet Suburban C2500, 6.0 U
Body Control Module (BCM) - C6
2006 Chevrolet Suburban C2500, 6.0 USECTION Body Control Module (BCM) - C6
WARNING: This page is about a different car, the 2006 GMC Sierra, 2006 GMC Cab & Chassis Sierra, 2006 Chevrolet Silverado, and 2006 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Body Control Module (BCM) - C6
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A1 | - | - | Not Used |
| A2 | L-GN/BK | 748 | Right Rear Door Ajar Switch Signal |
| A3 | L-BU/BK | 747 | Left Rear Door Ajar Switch Signal |
| A4 | - | - | Not Used |
| A5 | - | - | Not Used - Base |
| L-BU | 2265 | Power Window Lockout Left Rear Control - Uplevel | |
| A6 | - | - | Not Used - Base |
| L-GN | 2266 | Power Window Lockout Right Rear Control - Uplevel | |
| A7 | - | - | Not Used - Base |
| GY/BK | 1186 | Power Window Relay Right Rear Up Control - Uplevel | |
| A8 | - | - | Not Used - Base |
| D-GN | 1188 | Power Window Relay Right Rear Down Control - Uplevel | |
| B1-B6 | - | - | Not Used |
| B7 | - | - | Not Used - Base |
| YE | 1187 | Power Window Relay Left Rear Down Control - Uplevel | |
| B8 | - | - | Not Used - Base |
| WH | 1185 | Power Window Relay Left Rear Up Control - Uplevel | |
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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.