Recirculation Control Motor Circuit Troubleshooting
Recirculation Control Motor Circuit Troubleshooting1. Check the No. 30 (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. Disconnect the recirculation control motor 7P (4-door) or 5P (2-door) connector.
3. Turn the ignition switch ON (II).
4. Measure the voltage between the No. 1 terminal of the recirculation control motor 7P (4-door) or No. 5 terminal of the 5P (2-door) connector and body ground.
Is there battery voltage?
YES - Go to step 5.
5. Turn the ignition switch OFF.
6. Test the recirculation control motor.
Is the recirculation control motor OK?
YES - Go to step 7.
NO - Replace the recirculation control motor, or repair the recirculation control linkage or doors.
7. Disconnect audio-HVAC display panel connector B (16P).
8. Check for continuity between the No. 10 and No. 11 terminals audio-HVAC display panel connector B (16P) and body ground individually.
Is there continuity?
YES - Repair any short to body ground in the wire(s) between the climate control unit and the recirculation control motor.
NO - Go to step 9.
9. Turn the ignition switch ON (II), and check the same wires for voltage.
Is there any voltage?
YES - Repair any short to power in the wire(s) between the climate control unit and the, recirculation control motor. This short may also damage the climate control unit. Repair the short to power before replacing the audio-HVAC display panel.
NO - Go to step 10.
10. Turn the ignition switch OFF.
11. Check for continuity between the given terminals of audio-HVAC display panel connector B (16P) and the recirculation control motor 7P (4-door) or 5P (2-door) connector.
Is there continuity?
YES - Check for loose wires or poor connections at audio-HVAC display panel connector B (16P) and at the recirculation control motor 7P (4-door) or 5P (2-door) connector. If the connections are good, substitute a known-good audio-HVAC display panel, and recheck. If the symptom/indication goes away, replace the original audio-HVAC display panel.
NO - Repair any open in the wire(s) between the climate control unit and the recirculation control motor.