DTC P0489: EGR Valve Circuit Shorted to Ground

1. Turn the ignition switch ON (II).

1. Clear the DTC with the HDS.

1. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P0489 indicated?

YES | - | Go to Step 4 .
NO | - | Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the EGR valve and the ECM.■

1. Turn the ignition switch OFF, and wait 30 seconds.

1. Disconnect the EGR valve 6P connector.

1. Disconnect ECM connector No. 1 (96P).

1. Check for continuity between EGR valve 6P connector terminal No. 6 and body ground.

Is there continuity?

YES | - | Repair short in the wire between the EGR valve and ECM connector No. 1 terminal No. 48, then go to Step 10 .
NO | - | Go to Step 8 .