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.
Reading Off And Programming Data
This function allows programmed data to be read off or data such as customer parameters to be programmed in.
If possible, all data must be read out from the control module before replacement. After replacement the relevant data must be programmed into the new control module.
Customer parameters can be programmed for approach lights, seat heaters, post drying and daytime running lamps.
Seat heater: First read off the data that is programmed in the central electronic module (CEM). Answer, for example, 37C. Then enter the temperature desired by the customer, for example 41C. After programming, the new data must be saved in the control module memory. The following values can be programmed in: 0, 10C, 28C, 30C, 31C, 32C, 33C, 34C, 35C, 36C, 37C, 38C, 39C, 40C, 41C, 43C. The left and right-hand seats are programmed individually and there are two settings that can be selected by the customer, high or low.
Approach lights: First read off the data that is programmed in the central electronic module (CEM). Answer, for example, 30 seconds. Then enter the time desired by the customer, for example 90 seconds). After programming, the new data must be saved in the control module memory. The following values can be programmed in: 0, 30, 60 and 90 seconds.
Post drying: First read off the parameters programmed in the central electronic module (CEM). Reply for example the function is not set. Then enter if the customer wants post drying (the function is set). After programming, the new parameters must be saved to the control module memory. The following values can be entered: Off or on.
Daytime running lamps: First read off the data that is programmed in the central electronic module (CEM). For example, daytime running lamps off. Then enter if the vehicle is to have daytime running lamps (daytime running lamps on). After programming, the new data must be saved in the control module memory. The following values can be programmed in: Off or on. There are two versions of off. Dipped headlamps can be switched on in all light switch positions apart from the P position. The dipped headlamp beam can also be adjusted.
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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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