Possible Causes
| Possible Causes |
|---|
| 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND |
| 5-VOLT SUPPLY CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT |
| 5-VOLT SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE |
| MAP SIGNAL CIRCUIT SHORTED TO GROUND |
| MAP SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT |
| MAP SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .