Step | Action | Values | Yes | No |
---|---|---|---|---|
Schematic Reference: HVAC Blower Control Schematics , HVAC Compressor Control Schematics , and HVAC Air Delivery/Temperature Control Schematics DEFINITION: Air recirculation is inoperative or always on. | ||||
1 | Did you perform the HVAC Diagnostic System Check? | -- | Go to Step 2 | Go to Diagnostic System Check |
2 |
Does the scan tool display any DTCs? | -- | Go to DTC Table | 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 in Wiring Systems. | Go to Step 4 |
4 |
Does the scan tool indicate that the value of the Air Inlet Dr. Commanded 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 (IPM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 8 | Go to Step 7 |
6 | Inspect and the air distribution system for the following conditions:
Did you find and correct the condition? | -- | Go to Step 8 | -- |
7 |
Important: Perform the recalibration procedure Instrument Panel Module Recalibration for the IPM. Replace the IPM. Refer to HVAC Module Assembly Replacement . 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 |