Possible Causes
| Possible Causes |
|---|
| EXCESSIVE RESISTANCE IN THE (F856) 5-VOLT SUPPLY CIRCUIT |
| EXCESSIVE RESISTANCE IN THE (K35) EGR SOLENOID CONTROL CIRCUIT |
| (K34) EGR SENSOR SIGNAL CIRCUIT SHORTED TO GROUND |
| (Z42) GROUND CIRCUIT OPEN |
| EGR SOLENOID ASSEMBLY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.