Condenser Fan High Speed Circuit Troubleshooting
Condenser Fan High Speed Circuit Troubleshooting1. Check the No. 16 (7.5 A) fuse in the under-dash fuse/relay box.
Is the fuse OK?
YES - Go to step 2.
NO - Replace the fuse, and recheck.
2. Remove the fan control relay from the multi-relay box, and test it.
Is the relay OK?
YES - Go to step 3.
NO - Replace the fan control relay.
3. Turn the ignition switch ON (II).
4. Measure the voltage between the No. 5 terminal of the fan control relay 5P socket and body ground.
Is there battery voltage?
YES - Go to step 5.
NO - Repair open in the wire between the No. 16 fuse in the under-dash fuse/relay box and the fan control relay.
5. Turn the ignition switch OFF.
6. Check for continuity between the No. 2 terminal of the fan control relay 5P socket and body ground.
Is there continuity?
YES - Repair open in the wire between the fan control relay and the A/C pressure switch.
NO - Check for an open in the wire between the fan control relay and body ground. If the wire is OK, check for poor ground at G301.