Step  | Action  | Yes  | No  | 
|---|---|---|---|
Schematic Reference: HVAC Schematics Connector End View Reference: HVAC Connector End Views DEFINITION: The auxiliary blower motor operates with the auxiliary blower motor switch in the OFF position.  | |||
1  | Did you perform the Diagnostic System Check - Vehicle?  | Go to Step 2  | |
2  | Turn the auxiliary HVAC controls OFF. Is the auxiliary blower motor OFF?  | Go to Testing for Intermittent Conditions and Poor Connections  | Go to Step 3  | 
3  | Disconnect the auxiliary HVAC control module. Is the auxiliary blower motor OFF?  | Go to Step 4  | Go to Step 5  | 
4  | Inspect for poor connections at the harness connector of the auxiliary HVAC control module. Refer to Wiring Repairs and Connector Repairs . Did you find and correct the condition?  | Go to Step 7  | Go to Step 6  | 
5  | Repair a short to voltage in the appropriate auxiliary blower motor speed control circuit. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?  | Go to Step 7  | --  | 
6  | Replace the auxiliary HVAC control module. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement?  | Go to Step 7  | --  | 
7  | Operate the system in order to verify the repair. Did you correct the condition?  | System OK  | Go to Step 3  |