Heated Glass Control Module: Testing and Inspection

INSPECT DEFOGGER TIMER OPERATION
a. Connect the positive (+) lead from the voltmeter to terminal 2, 12 and 42 of defogger switch connector and negative (-) lead to terminal 22.
b. When the switch is OFF, the voltage should be approx. 12 V.




c. Turn the defogger switch ON and check that the indicator lights up and that the voltage is less than 1 V.
d. After 15 minutes, check that the switch is OFF and the voltage is approx. 12 V.
If operation is not as specified, replace the switch.




INSPECT MIRROR HEATER TIMER OPERATION
a. Connect the positive (+) lead from the voltmeter to terminal 2, 12 and 51 of mirror heater switch connector and negative (-) lead to terminal 22.
b. When the switch is OFF, the voltage should be approx. 12 V.
c. Turn the mirror defogger switch ON and check that the indicator lights up and that the voltage is less than 1 V.
d. After 15 minutes, check that the switch is OFF and the voltage is approx. 12 V.
If operation is not as specified, replace the switch.