Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Circuit Operation
There are three 12V reversible motors that operate the power seats. The front and back of a seat are operated by different motors. They can be raised or lowered independently of each other. When the Entire Seat Switch is pushed to the UP or DOWN position, both motors run to move the front and back of the seat at the same time.
The Left Forward-Back Motor is operated by the Left Entire Seat Switch. When it is held in the FORWARD position, battery voltage is applied through the Entire Seat Forward Switch contacts to the forward-back motor. The motor is grounded through the Entire Seat Back Switch contact. The motor runs to drive the seat forward until the switch is released.
With the Entire Seat Switch in the BACK position, voltage is applied through the Entire Seat Back Switch contacts to the forward-back motor. The motor is grounded through the Entire Seat Forward contacts. This reverses the voltage polarity applied to the motor, and causes the motor to run in the opposite direction which drives the seat backward. All the seat motors operate in a similar manner.
Each motor contains an electronic circuit breaker which protects the motor and circuit. The circuit breakers have positive temperature coefficients (PTC) and reset automatically when voltage is removed from the motor.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.