With Manufacturer's Scan Tool
How to Retrieve a DTCThe Climate Control Unit has a self-diagnostic function. To run the self-diagnostic function, do the following:
1. Turn the ignition switch OFF.
2. Turn the fan switch OFF, the temperature control dial to Max Cool (58 degrees F or 18 degrees C), and the mode control dial to Vent.
3. Turn the ignition switch ON (II), then press and hold the recirculation control switch. Within 10 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-diagnostic will begin. About 15 seconds later, the self-diagnostic will finish and the A/C indicator goes off. If there is any problem in the system after finished self-diagnostic, 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 15), the A/C indicator will blink the DTC. If no DTCs are found, the indicator will not blink.
Canceling the Self-diagnostic Function
DTC Troubleshooting Index:
4. Turn the ignition switch OFF to cancel the self-diagnostic function. After completing repair work, run the self-diagnostic function again to make sure that there are no other malfunctions.
- In case of multiple problems, the recirculation or A/C indicator lights will indicate only the DTC with the least number of blinks.
- In case of an intermittent failure, the climate control unit will store the DTC until the ignition switch is turned off.