Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Jeep >> 2009 >> Grand Cherokee Laredo, 3.0 M, AWD >> Repair and Diagnosis >> Engine Performance >> System >> DRIVEABILITY - Diesel - Non-DTC-Based Diagnostics >> Diagnosis and Testing >> Checking The EGR System >> Notes

Checking The EGR System: Notes

Fig 1: EGR Airflow Control Valve Circuit Schematic
GC0120720Courtesy of CHRYSLER LLC

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS .

Possible Causes 
FUSED ASD RELAY OUTPUT CIRCUIT OPEN
EGR SOLENOID GROUND CIRCUIT OPEN
EGR AIRFLOW CONTROL VALVE
EGR SOLENOID/VALVE
INTAKE OR EXHAUST SYSTEM PROBLEM