Step | Action | Yes | No | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: HVAC Schematics DEFINITION: Air does not flow correctly from the air distribution outlets. | |||||||||||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |||||||||
2 |
Is the blower motor OFF? | Go to Step 3 | Go to Blower Motor Always On | ||||||||
3 | Place the blower motor switch in each speed position. Does the blower motor operate in each speed position? | Go to Step 4 | Go to Blower Motor Inoperative | ||||||||
4 | Does the blower motor operate at the desired speeds? | Go to Step 5 | Go to Blower Motor Malfunction | ||||||||
5 |
Does the recirculation door move from the recirculation position to the ambient air position? | Go to Step 6 | |||||||||
6 |
Does the scan tool display any DTCs? | Go to Step 7 | |||||||||
7 | Place the mode switch in each mode position. Does the air flow from the correct air distribution outlets in each selected mode position? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 8 | ||||||||
8 | 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 11 | Go to Step 10 | ||||||||
9 | Inspect the air distribution system for the following conditions:
Did you find and correct the condition? | Go to Step 11 | -- | ||||||||
10 | Replace the HVAC control module. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 11 | -- | ||||||||
11 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |