EGR Valve: Testing and Inspection

On-vehicle inspection
1. Crank the engine and listen for initialization noise (clicks) of the EGR valve using a screwdriver or a soundscope.
- If the initialization noise is not heard, inspect for continuity of the wiring harness between the EGR valve and the PCM, and inspect the EGR valve.

NOTE: EGR valve initialization is closing action of the valve observed before and after the engine is started, and when the engine is stopped.

Off-vehicle Inspection
1. Inspect resistance of the EGR valve coils.
- If not as specified, replace the EGR valve.