HVAC Control Module X2 (CJ3)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
HVAC Control Module X2 (CJ3)
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| 1 | 0.35 YE | 6817 | LED Backlight Dimming Control |
| 2 | 0.35 OG | 300 | Ignition Voltage |
| 3 | 0.5 BK/WH | 1851 | Ground |
| 4 | 0.35 RD/WH | 3340 | Battery Positive Voltage |
| 5 | 0.35 D-GN | 5060 | Low Speed GMLAN Serial Data |
| 6-7 | - | - | Not Used |
| 8 | 0.35 WH | 193 | Rear Defog Relay Control |
| 9 | 0.35 L-GN/BK | 735 | Outside Ambient Air Temperature Sensor Signal |
| 10 | 0.5 BK | 1050 | Ground |
| 11 | 0.35 GY | 597 | 5-Volt Reference |
| 12 | 0.35 D-GN | 6101 | Low Reference |
| 13-16 | - | - | Not Used |
Connector Part Information
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Terminal Part Information
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