B1017 - Driver Door Module (DDM)

CIRCUIT DESCRIPTION
The Driver Door Module (DDM), upon receipt of a Class 2 message will supply battery positive voltage to the internal mirror heater relay control circuit to enable the mirror heater relay. The DDM will also supply a pulse width modulated signal on the heated/memory seat switch illumination circuit to control switch back lighting.

CONDITIONS FOR RUNNING THE DTC
^ Battery voltage is between 10.6 and 16.0 volts.
^ Ignition switch in the ON position

CONDITIONS FOR SETTING THE DTC
^ When the DDM supplies battery voltage to the internal mirror heater relay control circuit and it is shorted to ground for more then 160 milliseconds.
^ When the DDM supplies a pulse width modulated signal on the heated/memory seat switch illumination circuit and it is shorted to ground for more then 160 milliseconds.

ACTION TAKEN WHEN THE DTC SETS
The DDM will cancel any outputs on the internal mirror heater relay control circuit and the heated/memory seat switch illumination circuits for the remainder of the ignition cycle.

CONDITIONS FOR CLEARING THE DTC
When the fault is no longer present, the DDM changes the current DTC to a history DTC. The DDM will clear the history DTC after 50 fault free ignition cycles.

TEST DESCRIPTION

DTC B1017 (Driver Door Module (DDM)) - Steps 1-9:

The numbers below refer to the step numbers on the diagnostic table.
2. This step determines if the heated/memory seat switch illumination circuit is the cause for DTC B1017 setting.
3. This step determines if the mirror heating element supply voltage circuit is the cause for DTC B1017 setting.
4. This step eliminates the possibility that the heated/memory seat switch is internally shorted to ground.