Power Seats

The LH and RH power seat system consist of the seat switches, the seat relay modules, and four reversible motors (front height, rear height, forward/back, and recline) which operate independently of each other.

When the entire seat switch is pushed to the FORWARD position, the forward input of the seat relay module is grounded. In response to this input, the seat relay module supplies battery positive voltage (B+) and ground to the forward/back motor. The motor runs to drive the seat forward until the switch is released. The BACK position works similar to the FORWARD position except that the voltage polarity supplied by the seat relay module is reversed causing the motor to run in the opposite direction driving the seat backward.

The front height, rear height, and recline motors work in a similar way when the front height, rear height, and recline switches are operated independently.

When the entire seat switch is pushed to the UP position, the seat relay module receives inputs from the rear and front height switches simultaneously. The seat relay module then supplies battery positive voltage (B+) and ground to both height motors at the same time to move the seat up. A similar action occurs to move the entire seat down.