Possible Causes
| Possible Causes |
|---|
| PINCHED/OBSTRUCTED PURGE TUBE BETWEEN THE OBD VENT VALVE AND CANISTER |
| ESIM SIGNAL CIRCUIT SHORTED TO GROUND |
| ESIM SIGNAL CIRCUIT SHORTED TO THE ESIM SENSOR GROUND CIRCUIT |
| EVAPORATIVE SYSTEM INTEGRITY MONITOR (ESIM) SWITCH |
| OBD VENT VALVE STICKING CLOSED/FILTER PLUGGED |
| PURGE SOLENOID STICKING OPEN (LEAKING) |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .