Climate Control Power and Ground Circuit Troubleshooting
|1.||Check the No. 36 (10 A) fuse in the under-dash fuse/ relay box.|
Is the fuse OK?
YES - Go to 2.
NO - Replace the fuse, and recheck.n
|2.||Disconnect the climate control unit 32P connector.|
|3.||Turn the ignition switch ON (II).|
|4.||Measure the voltage between the climate control unit 32P connector terminal No. 3 and body ground.|
Is there battery voltage?
YES - Go to 5.
NO - Repair an open in the wire between the No. 36 fuse in the under-dash fuse/relay box and the climate control unit.n
|5.||Turn the ignition switch OFF.|
|6.||Check for continuity between the climate control unit 32P connector terminal No. 5 and body ground.|
Is there continuity?
YES - Check for loose wires and poor connections at the climate control unit 32P connector. If connections are good, substitute a known-good climate control unit and recheck. If the symptom/indication goes away, replace the original climate control unit.n
NO - Check for an open in the wire between the climate control unit and body ground. If the wire is OK, check for poor ground at G504.n