General Troubleshooting Information
How to Retrieve a DTC
The Climate Control Unit has a self-diagnosis function. To run the self-diagnosis function, do the following:
1. Turn the ignition switch OFF.
2. Tu rn the fan switch OFF, the temperature control dial to MaxCool (60.F or 18.C), and the mode control dial to Vent.
3, Turn the ignition switch ON (ll),then press and hold the recirculation control switch. Within lO seconds while holding the switch down, press the rear window defogger switch five times. The recirculation indicator blinks two times and the A/C indicator comes on, then the self-diagnosis will begin. About 15 seconds later, the self diagnosis will finish and the Ay'C indicator goes off. lf there is any problem in the system after finished self diagnosis, the recirculation indicator will blink the Diagnostic Trouble Code (DTC) 1 through 13. When problems in the evaporator temperature sensor circuit are detected (codes 14 and t5), the A/C indicator will blink the DTC. lf no DTCs are found. the indicator will not blink.
Resetting the Self-diagnosis Function
Turn the ignition switch OFF to cancel the self-diagnosis function. After completing repair work, run the self-diagnosis function again to make sure that there are no other malfunctions.