Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

CHECK BETWEEN THE AUXILIARY COOLING PUMP RELAY AND PCM-1 CONNECTION
1. 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 THE AUXILIARY COOLING PUMP RELAY AND PCM-1 WIRING FOR A SHORT TO BATTERY
1. Check for a short circuit to Battery in the wiring between the Auxiliary Cooling Pump R2 of the front relay and fuse base and PIN 38 of PCM-1 connector on vehicle side.
  Is there a short circuit to Battery in the wiring?
  
  Yes
  - Repair the wiring and connections as necessary insulation to Battery.
  No
  - Go To 3
AUXILIARY COOLING PUMP RELAY OPERATION CHECK
1. Check the correct operation of the Auxiliary Cooling Pump R2 of the front relay and fuse base.
  Is the operation incorrect? of the Auxiliary Cooling Pump R2 of the front relay and fuse base
  
  Yes
  - Replace the Auxiliary Cooling Pump R2-30A of the front relay and fuse base.
  No
  - End of diagnosis.