Auxiliary Blower Motor Malfunction

Auxiliary Blower Motor Malfunction

Test Description

Step 1 - Step 10:

Step 11 - Step 21:

Step 22 - Step 33:

The numbers below refer to the step numbers on the diagnostic table.
7. Test the circuit that did not illuminate the test lamp in Step 6.
10. The control circuit of the auxiliary blower motor relay is the circuit which provides the ground path for the relay coil through the auxiliary blower motor switches.
14. Test the blower motor control circuit that corresponds with the inoperative blower motor speed.
15. The auxiliary blower motor switch control circuit is the circuit that enables the rear auxiliary HVAC control assembly when the front auxiliary blower motor switch is placed in the rear control position.
16. The auxiliary blower motor switch control circuit is the circuit that enables the rear auxiliary HVAC control assembly when the front auxiliary blower motor switch is placed in the rear control position.