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.
Optical Sensor: Description
Vehicles equipped with a power liftgate utilize a optical sensor (Fig 1). This sensor is located on the drive unit clutch housing and is used to supply the power liftgate control module with the motor/clutch speed. This speed signal helps the control module detect obstacles in the power liftgates path or liftgate system component failure. Four wires connect the optical sensor to the drive unit's main electrical connector.
The optical sensor cannot be adjusted or repaired and if found to be faulty, must be replaced. Consult your Mopar parts catalog for a specific part number.
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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.