Possible Causes
| Possible Causes |
|---|
| INTERMITTENT DTC |
| (Z904) GROUND CIRCUIT OPEN OR HIGH RESISTANCE |
| (K35) EGR CONTROL CIRCUIT OPEN OR HIGH RESISTANCE |
| EXHAUST GAS RECIRCULATION VALVE |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to *PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .