Possible Causes
| Possible Causes |
|---|
| 5-VOLT SUPPLY CIRCUIT OPEN |
| EXCESSIVE RESISTANCE IN THE BANK 1 MAP SIGNAL CIRCUIT |
| EXCESSIVE RESISTANCE IN THE SENSOR GROUND CIRCUIT |
| BANK 1 MAP SENSOR |
| POWERTRAIN CONTROL MODULE |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .