Diagnostic Test
WARNING: This page is about a different variant/trim than selected.
- WIRING CHECK BETWEEN THE AUXILIARY COOLING PUMP RELAY AND PCM-1 CONNECTION
- Check for loose, damaged or corroded connections on Auxiliary Cooling Pump Relay R2 of the front relay and fuse base or on the PCM-1.
Are there any loose or damaged connections?
Yes
- Repair the wiring connections as necessary.
No
- Go To 2
- Check for loose, damaged or corroded connections on Auxiliary Cooling Pump Relay R2 of the front relay and fuse base or on the PCM-1.
- CHECK THE AUXILIARY COOLING PUMP RELAY AND PCM-1 WIRING FOR AN OPEN
- Check the wiring for an open circuit or high resistance between the Auxiliary Cooling Pump Relay R2 of the front relay and fuse base and PIN 38 of PCM-1 connector on vehicle side.
Is there a high resistance or open condition in the wiring?
Yes
- Repair the open circuit or high resistance in the wiring.
No
- Go To 3
- Check the wiring for an open circuit or high resistance between the Auxiliary Cooling Pump Relay R2 of the front relay and fuse base and PIN 38 of PCM-1 connector on vehicle side.
- AUXILIARY COOLING PUMP RELAY OPERATION CHECK
- Check the correct operation of the Auxiliary Cooling Pump Relay R2 of the front relay and fuse base.
Is the operation incorrect? of the Auxiliary Cooling Pump Relay R2 of the front relay and fuse base
Yes
- Replace the Auxiliary Cooling Pump Relay R2-30A of the front relay and fuse base.
No
- End of diagnosis.
- Check the correct operation of the Auxiliary Cooling Pump Relay R2 of the front relay and fuse base.