FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Reading and Clearing Diagnostic Trouble Codes




Climate Control System

Self-Test - Retrieving And Clearing HVAC Module DTCs

To retrieve HVAC module DTCs, Carry out the following steps:

1. With the ignition on, select any mode except OFF on the HVAC controls.

2. While pressing the RECIRC mode button, select OFF on the HVAC controls.

3. Continue holding the RECIRC mode button for 5 seconds after OFF is selected.

The recirc mode indicator flashes at the rate of 1 flash per second for the first digit of the DTC, pause for 2 seconds, then resumes flashing at 1 flash per second for the second digit of the DTC. There is a 5 second pause between DTCs. DTC 1-1 indicates no faults present.

To exit without clearing DTCs, select any mode except FLOOR or PANEL/FLOOR or turning the ignition off after retrieving HVAC module DTCs.

To exit and clear HVAC DTCs, select FLOOR after retrieving HVAC module DTCs. The recirc mode indicator flashes 5 times a second for 2 seconds, then resumes flashing to indicate any DTCs. DTC 1-1 indicates no faults present.