B2103

CIRCUIT DESCRIPTION
When the power seat switches are pressed, the memory seat module (MSM) receives an input from the switch. The MSM commands the driver seat to move in response to the switch input.

CONDITIONS FOR SETTING THE DTC
^ If a seat switch continues to be active for 30 seconds after the motor controlled by that switch reaches the end of its travel, the switch will be considered shorted and the MSM will set the DTC.
^ If a position sensor DTC is current and the associated switch is active for 30 continuous seconds, the switch will be considered shorted and the MSM will set the DTC.
^ A switch DTC will not set if DTC B1982 MSM or DTC B1983 is current.

ACTION TAKEN WHEN THE DTC SETS
^ A motor output driven in response to a switch considered failed, is deactivated for both directions.
^ All memory recall commands are ignored.
^ The MSM will respond to any other switch input that has not set a DTC.

CONDITIONS FOR CLEARING THE DTC
The DTC automatically clears when the switch circuit setting the DTC is no longer active.

TEST DESCRIPTION

Steps 1-10:

The numbers below refer to the step numbers on the diagnostic table:
2. Checks the existing state of the seat switch by using the current state of the current state of the diagnostic trouble code (DTC) list. If all of the seat switch DTCs display current, possibly one of the switch signal circuits is shorted to ground.
4. When the seat switch is disconnected, this step determines if the seat switch contacts are stuck closed, or if the related switch signal circuit is possibly shorted to ground.
10. This step verifies the repair.