For 1990-2009 cars

#### Improper Air Delivery

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the Air Delivery System Check performed? | -- | Go to Step 2 | Go to Air Delivery System Check
2 |

• | Install the scan tool.

• | Select the actuator tests from the Air Conditioning SPECIAL FUNCTIONS menu.

• | Select one actuator test at a time and command the actuator from 0% to 100%.

• | Monitor the air flow when commanding the selected actuator (e.g., good air flow should be felt when the floor actuator is commanded to 100% and none when commanded to 0%.)

Does the scan tool display the status ACTIVE when the actuator is commanded?

--

Go to Step 3

Go to Step 4

3 | Is good air flow felt when the actuator selected is commanded from 100% to 0%? | -- | System OK | Go to Step 4
4 |

• | Check the actuator that failed for mechanical binding. Repair as needed.

• | Check the circuit wiring between the heater and A/C control and the actuator. Repair as needed. Refer to the applicable DTC table related to the actuator for assistance.

Is the repair complete?

--

System OK

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