Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: HVAC Blower Control Schematics , HVAC Compressor Control Schematics , and HVAC Air Delivery/Temperature Control Schematics DEFINITION: The auxiliary blower motor operates with the auxiliary blower motor switch in the OFF position. | |||
1 | Did you perform the HVAC Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check |
2 |
Does the auxiliary blower motor turn OFF? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Test each blower motor control circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 6 | Go to Step 4 |
4 | Inspect for poor connections at the harness connector of the rear HVAC control module. 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 6 | Go to Step 5 |
5 | Replace the rear HVAC control module. Refer to Control Assembly Replacement - Rear . Did you complete the replacement? | Go to Step 6 | -- |
6 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
