The windshield deicer switch inputs can be checked using the GDS.

To check the input value of windshield deicer switch, select option "Body Control Module".

Select option "Current Data".

To perform functional test on SJB outputs, select "Actuation Test".

Disconnect the negative (-) battery terminal.

Remove the heater and A/C control unit.

(Refer to Heating, Ventilation, Air Condition - "Heater & A/C Control Untit (Manual))

(Refer to Heating, Ventilation, Air Condition - "Heater & A/C Control Untit (FATC))

Install the heater and A/C control unit.

Connect the negative (-) battery terminal.