Blower Motor Malfunction - Auxiliary

BLOWER MOTOR MALFUNCTION - AUXILIARY

TEST DESCRIPTION

Steps 1-5:

Steps 6-9:

Steps 10-14:

Steps 15-18:

Steps 19-24:

Steps 25-33:

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 switch esi.
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.