Possible Causes
| POSSIBLE CAUSES |
|---|
| IAT 2 SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| IAT 2 SIGNAL CIRCUIT OPEN/HIGH RESISTANCE |
| SENSOR GROUND CIRCUIT OPEN/HIGH RESISTANCE |
| MASS AIR FLOW (MAF) SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .