Diagnostic Test

INSPECT THE A/C HEATER CONTROL FOR DAMAGE
1. Inspect the A/C Heater Control for damage.
  Is the A/C Heater Control damaged?
  
  Yes
  - Replace the A/C Heater Control in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Go to step 2
INSPECT FOR OBJECT OR SUBSTANCE CAUSING THE EBL MODE SWITCH TO STAY OR STICK IN A PUSHED POSITION
1. Inspect the A/C Heater Control for anything that would cause the EBL mode switch to stay or stick in a pushed position.
  Is anything present that would cause the EBL mode switch to stay or stick in a pushed position?
  
  Yes
  - Repair as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Go to step 3
CHECK FOR NORMAL EBL MODE SWITCH AND STATUS INDICATOR FUNCTION
1. Turn the ignition on.
2. Press the EBL mode switch on and off several times while observing the EBL status indicator.
  Does the EBL status indicator turn on and off with respect to the switch position?
  
  Yes
  - Go to step 4
  No
  - Replace the A/C Heater Control in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
CHECK A/C HEATER CONTROL OPERATION BY ATTEMPTING TO RUN THE ACTUATOR CALIBRATION FUNCTION
1. If illuminated, turn off the A/C status indicator and the EBL status indicator.
2. Actuate the Actuator Circuit Test / Door Calibration Function by performing the following:
  - Turn the blower control off.
  - Press and hold the EBL mode switch down and then turn the blower control on. Continue to hold the EBL mode switch down until the EBL status indicator begins flashing. Then, release the EBL mode switch.
3. While the test / function is running, the EBL status indicator will flash once per second. If the test / function passes, the EBL status indicator will stop flashing. If the test / function fails, the A/C and EBL status indicators will flash alternately.
  Did the A/C Heater Control run the test / function?
  
  Yes
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Replace the A/C Heater Control in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure