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.
Junction Box Electronics Module
The junction box electronics module is the The trunk central locking system is activated slave control unit which unlocks/locks the directly via a power output stage. entire vehicle. The unlocking/locking relays are located in the junction box electronics module. The following relays are activated:
- Relay for unlocking/locking central locking
- Driver's door.
- Relay for unlocking/locking central locking
- Rear doors
- Front passenger door
- Fuel filler flap.
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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.