B3172

Diagnostic Chart:

Schematics:

CIRCUIT DESCRIPTION
The switch that failed and generated this diagnostic trouble code (DTC) is wired to the passenger door module. This module contains a microprocessor which takes the signal generated by this switch and assigns a digital message to the switch signal. The passenger door module then sends this message over a simple bus interface (SBI) link to the driver door module (DDM).

CONDITIONS FOR RUNNING THE DTC
The DDM and the passenger door module must both be powered and neither can have B1327-Battery Voltage Low or B1328-Battery Voltage High set for this DTC to set.

CONDITIONS FOR SETTING THE DTC
If the driver door module (DDM) receives a message indicating that the switch is closed for more than 15 continuous seconds from the passenger door module, the DDM sets this DTC.

ACTION TAKEN WHEN THE DTC SETS
If the UP switch is closed for more than 15 seconds, both UP and DOWN movement is prohibited from the switch setting the DTC. The window still operates from the driver door switch.

CONDITIONS FOR CLEARING THE DTC
The DDM clears this DTC when the switch message is not received.

TEST DESCRIPTION
The numbers below refer to the step numbers on the diagnostic table.
2. Checks the existing state of the right front passenger power window switch by using the current state of the input parameter.