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/System Description
The driver and passenger door lock and side window switches are integrated control module switch assemblies. The driver door switch (DDS) controls the passenger window through a serial data message to the passenger door switch (PDS). When a power window switch is activated in the up or down positions the DDS or PDS supplies power and ground to their respective window motor control circuits to drive the window motor in the required direction. The rear passenger power windows can also be operated from the DDS through a serial data message to the BCM. The rear passenger window switches on the DDS have 2 positions, up and down, their position is a direct input into the DDS. When the BCM receives a command to operate a rear window up or down the appropriate signal circuit to the rear door window switch.
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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.