Component Inspection

Engine Control
P0685 ECM/PCM Power Relay Control Circuit /Open - Inspection/Repair:_:Component Inspection

Component Inspection

Check Main relay
1. IG "OFF" and disconnect main relay.
2. Measure the resistance between battery power supply and control terminals of main relay.(Measurement "A")
3. Measure the resistance between battery power supply and power supply to PCM terminals of main relay.(Measurement "B")
Specification :









4. Is the measured resistance within specification ?