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.
Most Control Modules: OVERTEMPERATURE Cutout: Notes
If a control unit becomes too hot, this control unit switches off for up to 10 minutes to protect the individual components against damage.
Furthermore, the entire MOST bus can switch off for 10 minutes. After the control unit has cooled down, it is functional once again!
If the fault "Cutoff excess temperature" is stored in a MOST device, the control unit concerned and the headunit store the fault. The fault code entry from the headunit is evaluated in the test module.
The headunit is only displayed if it has switched itself off due to excess temperature.
NO RELATED
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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.