B2103

DTC B2103 Rear Vertical Down Switch Failed:

CIRCUIT DESCRIPTION
The Memory Seat Module (MSM) receives inputs from the LH seat switch. When you operate a switch, the switch grounds. The MSM recognizes the input. The MSM then moves the seat in the appropriate direction. When any seat positioning switch continues to activate for 30 seconds after motion stops in the direction requested, the system considers the switch shorted. The system also considers a switch shorted under the following conditions:
^ A seat position sensor DTC is currently set.
^ A switch in the direction of the faulty sensor is active for over 30 seconds.

CONDITIONS FOR SETTING THE DTC
The MSM sets the appropriate DTC any time the MSM detects a switch failure.

ACTION TAKEN WHEN THE DTC SETS
^ Motor outputs driven in response to the faulty switch deactivate.
^ The MSM continues to respond to valid inputs from all other positioning switches.
^ The MSM ignores all memory recall commands.

CONDITIONS FOR CLEARING THE DTC
The DTC clears when the MSM does not detect the switch failure for the last monitoring cycle.

TEST DESCRIPTION
The number(s) below refer to the step number(s) on the diagnostic table.
2. This test determines if there is a stuck switch or a short to ground in the input wiring to the MSM. If there is a short to ground in the wiring, the DTC will set again. If there is a stuck switch, the DTC will not set again because the LH seat switch is disconnected.