Fresh/Recirculated Air Cannot Be Controlled
WARNING: This page is about a different car, the 1994 Honda Prelude. However, it is still accessible from the selected car via links, so may be relevant.
- Check fuse No. 9 (15-amp) in underdash fuse/relay box. If fuse is blown, replace fuse. Repair short to ground if necessary. If fuse is okay, turn ignition on. Check to see if mode control motor operates by selecting different modes (vent, heat, etc.). If mode control motor operates, go to step 3).
- If mode control motor does not operate, check for open Black/Yellow wire between fuse and recirculation control motor. If Black/Yellow wire is okay, check for open Black wire between heater control panel and ground. If Black wire is okay, replace heater control panel.
- Turn ignition off. Unplug recirculation control motor connector. Turn ignition on. Measure voltage at Black/Yellow wire terminal of recirculation control motor connector. If battery voltage is not present, repair Black/Yellow wire between fuse and recirculation control motor.
- If battery voltage is present, turn ignition off. Test recirculation control motor. See RECIRCULATION CONTROL MOTOR under TESTING . If recirculation control motor is okay, remove radio for access to back of heater control panel. Unplug 16-pin connector from heater control panel.
- Check for faults (open, short to ground, short to power) in wires between heater control panel an recirculation control motor. If wires are okay, replace heater control panel.