Possible Causes
| Possible Causes |
|---|
| (C18) A/C PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| (C18) A/C PRESSURE SIGNAL CIRCUIT OPEN |
| (C18) A/C PRESSURE SIGNAL CIRCUIT SHORTED TO THE (T103) 5-VOLT SUPPLY CIRCUIT |
| (G180) SENSOR RETURN CIRCUIT OPEN |
| A/C PRESSURE TRANSDUCER |
| FRONT CONTROL MODULE (FCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .