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 high voltage circuit impact detector sensor utilizes a unidirectional 2-wire circuit. The high voltage circuit impact detector sensor modulates current on the circuit interface to send ID, state of health, and collision status to the serial data gateway module. The serial data gateway module serves as a power source and a ground for the high voltage circuit impact detector sensor. When the ignition is turned ON and input power from the serial data gateway module is first detected, the high voltage circuit impact detector sensor responds by performing internal diagnostics and sending an ID to the serial data gateway module. The high voltage circuit impact detector sensor continually communicates status messages to the serial data gateway module,
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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.