Possible Causes
| Possible Causes |
|---|
| LOW ENGINE OIL LEVEL |
| ENGINE OIL AERATED OR CONTAMINATED |
| INCORRECT ENGINE OIL FILTER |
| INSUFFICIENT OIL PRESSURE DUE TO A MECHANICAL FAILURE IN THE OILING SYSTEM |
| 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE |
| 5-VOLT SUPPLY CIRCUIT OPEN |
| 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND |
| 5-VOLT SUPPLY CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT |
| CMP 1/2 SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| CMP 1/2 SIGNAL CIRCUIT SHORTED TO GROUND |
| CMP 1/2 SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT |
| CMP 1/2 SIGNAL CIRCUIT OPEN/HIGH RESISTANCE |
| SENSOR GROUND CIRCUIT OPEN/HIGH RESISTANCE |
| CAMSHAFT POSITION SENSOR 1 |
| CAMSHAFT TONE WHEEL LOOSE/DAMAGED OR MISALIGNED |
| CAMSHAFT PHASER 1/1 OIL CONTROL VALVE FAULTY OR INTERMITTENTLY BINDING/STICKING SPOOL VALVE |
| CAMSHAFT PHASER 1/1 FAULTY OR INTERMITTENTLY BINDING/STICKING |
| OIL PRESSURE ISSUE IN CYLINDER HEAD |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .