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.
Remote Receiver Module (RRX)
Remote Receiver Module (RRX) is located up at the headlining, to the left of the front lighting panel.
Remote Receiver Module (RRX) receives signals sent from the remote control and transmits them on to Central electronic module (CEM) via serial communication (ISO).
When a key is in the ignition the Central electronic module (CEM) ignores all messages that come from the Remote Receiver Module (RRX). This is so that, e. g., the central locking system will not be locked if a button on the remote control is pushed accidentally.
The remote receiver checks for a signal from a remote control 4 times a second.
Remote Receiver Module (RRX) is supplied with voltage directly via 30-feed and is grounded in the A-pillar.
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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.