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.
Watchdog Function
The Intelligent Distributor allows the SIM to deactivate the power supply for individual satellites. This possibility is used to implement a watchdog function. The relevant status telegram is used to monitor the satellites. If any of the following faults is detected by the bus master (SIM), the satellite is deactivated:
- Internal fault in the satellite.
- System time incorrect.
- Status telegram not received.
Depending on the type of fault, up to two attempts are made to switch on again after 100 ms. If the power on reset in the satellite module does not rectify the fault, the satellite remains off until the next wake-up of the bus system.
Use the Manual With the Right Hardware
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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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