Possible Causes
| Possible Causes |
|---|
| 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE |
| 5-VOLT SUPPLY CIRCUIT OPEN |
| 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND |
| CMP SENSOR SIGNAL 1/1 CIRCUIT SHORTED TO VOLTAGE |
| CMP SENSOR SIGNAL 1/1 CIRCUIT OPEN |
| CMP SENSOR SIGNAL 1/1 CIRCUIT SHORTED GROUND |
| SENSOR GROUND CIRCUIT OPEN |
| INCORRECT OIL/LOW OIL LEVEL OR PRESSURE |
| CAM PHASER ISSUES |
| MECHANICAL ISSUES RELATED TO THE CAMSHAFTS/CAMSHAFT SPROCKETS/TIMING CHAINS |
| CAMSHAFT POSITION SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .