B1722
DTC B1722
CIRCUIT DESCRIPTION
The driver door module (DDM) and passenger door module (PDM) switch the mirror fold motor control circuits to battery voltage and ground in response to mirror extend or retract command.
DTC DESCRIPTOR
This diagnostic procedure supports the following DTC:
DTC B1722 Mirror Power Fold Control Circuit
CONDITIONS FOR RUNNING THE DTC
- Battery voltage must be between 9-16 volts.
- The ignition switch is in the ON position.
- A mirror extend or retract function must be active.
CONDITIONS FOR SETTING THE DTC
When the DDM or PDM switch the mirror fold motor control circuits to battery voltage and ground and one of the mirror fold motor control circuits are shorted to ground, shorted to battery or open.
ACTION TAKEN WHEN THE DTC SETS
The DDM or PDM will stop suppling battery voltage and ground to the mirror fold motor and the folding mirrors will be inoperative.
CONDITIONS FOR CLEARING THE DTC
When the fault is no longer present, the door module changes the current DTC to a history DTC. The door module will clear the history DTC after 50 fault-free ignition cycles, or in response to a scan tool command.
TEST
