Diagnostic Fault Information
WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| A/C Relay Switch B+ | 1 | 1 | - | - |
| A/C Relay Coil Ignition | 1 | 1 | - | - |
| A/C Relay Switched Output Control | 1 | 1 | 2 | - |
| A/C Compressor Clutch Relay Control | P0645 | P0645 | P0645 | - |
| A/C Compressor Clutch Ground | - | 1 | - | - |
| 1. A/C Compressor Inoperative 2. A/C Compressor Always On |
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