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.
Intelligent Distributor
The intelligent distributor of the SIM performs the following tasks:
- Power supply for each individual satellite.
- Current limitation for each individual satellite.
- Power shutdown for each individual satellite in the event of a fault.
In order to ensure reliable function of the ISIS, all the satellites are supplied with voltage centrally by the SIM. To ensure that the system functions perfectly in the event of a short circuit or overload on one of the supply lines, there must be an intelligent current distribution.
The distributor integrated in the SIM limits the current on each supply line to the satellites to 100 mA (Approx. 10V). An exception is the SZL, which has a current intake of approx. 120 mA, as the steering wheel electronics are also supplied.
If this current limit is exceeded, it causes a reduction in the current output. It is also possible to switch off each individual satellite.
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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