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.
System description/Design: General
The central locking system is a distributed system. Those parts which are included in the system are:
- rear electronic module (REM)
- central electronic module (CEM)
- driver door module (DDM)
- passenger door module (PDM)
- driver information module (DIM)
- climate control module (CCM)
- upper electronic module (UEM)
- switch for unlocking the fuel tank filler cover
- lock units in doors
- lock motor at the fuel tank filler cover
- lock unit for tailgate/trunk lid.
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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