Diagnostic Test
- CHECK FOR ACTIVE CONTROL CIRCUIT/PERFORMANCE AND CONTROL CIRCUIT OPEN DTCs
- Turn the ignition on.
- With the scan tool, read active HVAC DTCs.
Does the scan tool display any active: XXXX CONTROL CIRCUIT/PERFORMANCE or XXXX CONTROL CIRCUIT OPEN DTCs?
Yes
- Diagnose and repair the DTCs. If present, diagnose and repair all Control Circuit/Performance DTCs before diagnosing Control Circuit Open DTCs.
No
- Go to step 2
- CHECK FOR A BROKEN RECIRCULATION DOOR ACTUATOR
- Turn the ignition off.
- Remove the Recirculation Door Actuator from the A/C Heater Housing Assembly.
- By hand, attempt to rotate the actuator in both directions.
Does the actuator turn in either direction?
Yes
- Replace the Recirculation Door Actuator 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 3
- CHECK THE RECIRCULATION DOOR AND A/C HEATER HOUSING FOR WARPED, WORN, DAMAGED, MISSING, AND BROKEN COMPONENTS
- Inspect for excessively worn, disconnected, missing, or broken door linkage. Inspect for a damaged or broken A/C Heater Housing Assembly. Inspect for a warped or broken door, and missing door seals. Rotate the door from stop to stop. The door should rotate approximately 100 degrees.
Are there any physical or mechanical problems with the door or housing?
Yes
- Repair as necessary in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
No
- Replace the Recirculation Door Actuator in accordance with the Service Information. Then, Go To 4.
- Inspect for excessively worn, disconnected, missing, or broken door linkage. Inspect for a damaged or broken A/C Heater Housing Assembly. Inspect for a warped or broken door, and missing door seals. Rotate the door from stop to stop. The door should rotate approximately 100 degrees.
- RUN THE ACTUATOR CALIBRATION TEST
- Turn the ignition on.
- With the scan tool, select System Tests and then select Actuator Calibration Test. When the test is complete, select View DTCs.
Does the scan tool display: B105D-RECIRCULATION DOOR TRAVEL RANGE TOO LARGE?
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
- Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure