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.
Control Module
Remote Digital Audio Receiver (RDAR) has the task of receiving both digital satellite and terrestrial radio signals, process them and transmit them onward on the MOST network.
The remote digital audio receiver (RDAR) is located beneath the rear side window on the right side of the vehicle.
The control module has serial optical communication with other components in the MOST network. This means that all communication with Remote Digital Audio Receiver (RDAR) occurs via the Infotainment control module (ICM) or on the initiative of the Infotainment control module (ICM).
The control module checks the input and output signals through an integrated diagnostic system.
The control module communicates with directly connected components, and via MOST communication.
Any diagnostic trouble codes are stored in the control module memory. The information can be read out via the data link connector in the vehicle.
Use the Manual With the Right Hardware
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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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