Test Description
The numbers below refer to the step numbers on the diagnostic table.
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This action will calibrate the HVAC actuators and check to ensure the DTCs that set when calibration is performed will be set.
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This step is to ensure that the recirculation actuator is with its calibrated range.
Step | Action | Values | Yes | No | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: HVAC Schematics DEFINITION: Air recirculation is inoperative or always ON. | ||||||||||||
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | |||||||||
Does the scan tool display any DTCs? | -- | Go to Step 3 | ||||||||||
3 |
Does the recirculation door move from the recirculation position to the ambient air position? | -- | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 4 | ||||||||
Does the scan tool indicate that the value of the Recirculation Dr. Command parameter changes from the minimum specified value to the maximum specified value? | 0-230 Counts | Go to Step 6 | Go to Step 5 | |||||||||
5 | Inspect for poor connections at the harness connector of the HVAC control module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | -- | Go to Step 8 | Go to Step 7 | ||||||||
6 | Inspect the air distribution system for the following conditions:
Did you find and correct the condition? | -- | Go to Step 8 | -- | ||||||||
7 | Replace the HVAC control module. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | -- | Go to Step 8 | -- | ||||||||
8 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 | |||||||||
