Blower Motor Inoperative - Auxiliary

TEST DESCRIPTION

Steps 1-9:

Steps 10-21:

The numbers below refer to the step numbers on the diagnostic table.
2. This step tests for auxiliary heater and A/C blower motor operation in any speed setting.
3. This step identifies the presence of battery positive voltage at the auxiliary heater and A/C blower motor switches.
6. This step tests for a possible open in the A/C relay ground circuit.