Circuit/System Description

Battery positive voltage is supplied at all times to the memory seat module (MSM) through the battery positive voltage circuit from the SEATS circuit breaker located in the left rear fuse block. This voltage is used to power up the MSM and also to apply power to the seat motors when commanded. Each seat, lumbar and steering column motor is controlled by the MSM through 2 motor control circuits. While the motors are in an inactive state, the motor control circuits are closed to ground circuit contacts within the MSM. During memory recall and manual control functions, the motor current is monitored through the motor control circuits by the MSM. When an overcurrent condition is detected by the MSM, it will disable the appropriate motors in order to prevent the internal MSM circuitry from damage.