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.
Sensor-Control Module Unit
The Sensor-Control Module Unit is mounted to the front of the vehicle by means of an aluminum bracket with an intermediate plastic bracket.
The Control Unit is self contained and assumes control of following distance, speed and acceleration. The ACC control unit communicates with the appropriate modules via the PT-CAN.
The radar sensor, which is contained in the control unit, incorporates a transmitter and receiver. The transmitter frequency is 76-77 GHz and is active at speeds above 20 mph. The sensor shuts down when system voltage is < 10 V or > 17 V, and a fault is stored.
The ACC control unit is protected against shorts to B+ or B-, polarity reversal and open circuits.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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