MasterTuning Fault code dictionary (DTC)

3751 — Highside output stage starter relay

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: MAN
MeaningHighside output stage starter relay.
SystemEDC
FamilyManufacturer-native code

Frequently asked questions

What does code 3751 mean?

Highside output stage starter relay. Highside output stage starter relay. (System: EDC)

Can I keep driving with code 3751 active?

With caution: limp mode possible, have it checked soon

How do you fix code 3751?

Diagnosis starts from reading the live ECU parameters: the code points to the fault area, not to the part to replace. A vehicle-electronics specialist can test the component and clear the code after the repair.

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Where to get it fixed

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