Radiator Fan High Speed Circuit Troubleshooting
Is the relay OK?
YES -
Go to Step 2 .
NO -
Replace the fan control relay.■
  1. Measure the voltage between the fan control relay 5P socket terminal No. 5 and body ground.
Is there battery voltage?
YES -
Go to Step 3 .
NO -
Replace the under hood fuse/relay box.■
  1. Check for continuity between the fan control relay 5P socket terminal No. 2 and body ground.
Is there continuity?
YES -
Replace the under hood fuse/relay box.■
NO -
Repair open in the wire between the fan control relay 5P socket terminal No. 2 and body ground. If the wire is OK, check for poor ground at G301.■