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.
Theory Of Operation
The pedestrian protection impact sensors perform their own self test using power supplied by the Electronic Pedestrian Protection module (EPPM) then communicate this status back to the EPPM with periodic updates. The repair of this fault condition involves verifying the integrity of the wiring between the EPPM and the sensor. For EPPM Description information. Refer to MODULE, ELECTRONIC PEDESTRIAN PROTECTION, DESCRIPTION . For EPPM Operation information. Refer to MODULE, ELECTRONIC PEDESTRIAN PROTECTION, OPERATION .
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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.