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.
PPS Displaying Code Procedure
When the inflatable restraint sensing and diagnostic module (SDM) starts to communicate with the passenger presence module, the instrument panel cluster (IPC) and dash lights will begin dimming on and off. This is normal operation during this procedure and does not indicate additional system faults.
- Empty the front passenger seat.
- Install a scan tool.
- Turn ON the ignition, with the engine OFF, and wait for the passenger presence module to complete its bulb check function.
- With the scan tool, request the passenger presence system (PPS) DTCs. Follow the on screen instructions.
- The scan tool will then show any current or history DTCs. Refer to the Diagnostic Trouble Code (DTC) List - Vehicle to diagnose the DTC you have obtained.
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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.