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 MANUALSCHEVROLET2012CHEVY EXPRESS G2500, VAN PASSENGER, 4.8L ENG VIN AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2466 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEW 5 OF 5)VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) X3 (UE1 WITH U3R, U3U OR UVB)
2012 Chevrolet Chevy Express G2500, Van Passenger, 4.8L Eng VIN A
Vehicle Communication Interface Module (VCIM) X3 (UE1 with U3R, U3U or UVB)
2012 Chevrolet Chevy Express G2500, Van Passenger, 4.8L Eng VIN ASECTION Vehicle Communication Interface Module (VCIM) X3 (UE1 with U3R, U3U or UVB)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Vehicle Communication Interface Module (VCIM) X3 (UE1 with U3R, U3U or UVB) Connector End View
Vehicle Communication Interface Module (VCIM) X3 (UE1 with U3R, U3U or UVB)
| Pin | Wire Color | Circuit | Function |
|---|---|---|---|
| 1 | - | - | Not Used |
| 2 | 0.35 PK | 5149 | Voice Recognition Audio Signal |
| 3 | - | - | Not Used |
| 4 | 0.35 PK/BK | 5152 | Low Reference |
| 5 | 0.35 BARE | 1792 | Drain Wire (Z75 or Z88) |
| 0.5 BARE | 1792 | Drain Wire (X88) | |
| 6-16 | - | - | Not Used |
Connector Part Information
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Terminal Part Information
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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.