DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820: SWITCH CIRCUIT MALFUNCTION: Description

Seat adjuster switch is supplied a 12-volt reference circuit by Memory Seat Module (MSM). When a seat adjuster switch is pressed, signal circuit is closed to 12-volt reference circuit. Closing signal circuit to 12-volt reference circuit pulls signal circuit high indicating to MSM switch status is active.

When DTC sets, MSM will ignore switch input for which a current status DTC is set. When fault no longer exists, a history status DTC will be stored, and switch operation will be restored. DTC will be current for as long as fault exists. When faults no longer exists, DTC will be a history status code. A history DTC will be cleared after 100 error free ignition cycles, or by using scan tool clearing DTCs feature.