Possible Causes
WARNING: This page is about a different variant/trim than selected.
| Possible Causes |
|---|
| HP EGR SYSTEM FAULT |
| HP EGR VACUUM SUPPLY HOSES DAMAGED OR CLOGGED |
| HP EGR COOLING BYPASS SOLENOID |
| HP EGR COOLER VALVE SIGNAL CIRCUIT OPEN/HIGH RESISTANCE |
| HP EGR COOLER CLOGGED |
| HP EGR COOLING BYPASS ACTUATOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .