Possible Causes
| Possible Causes |
|---|
| (G31) AAT SIGNAL CIRCUIT HIGH RESISTANCE |
| (G31) AAT SIGNAL CIRCUIT SHORTED TO GROUND |
| (G31) AAT SIGNAL CIRCUIT SHORTED TO THE (G931) SENSOR GROUND CIRCUIT |
| (G31) AAT SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| (G931) SENSOR GROUND HIGH RESISTANCE |
| AMBIENT AIR TEMPERATURE SENSOR |
| CAN C BUS CIRCUITS |
| TOTALLY INTEGRATED POWER MODULE (TIPM) |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .