3360374 - Z74 IMPLEMENTATION FAULT NOTB ERROR

The diagnostic equipment signals the following error: C1504 NOTB (Implementation fault)
This error is signalled if the control unit detects that the speed of one of the wheels (transmitted by the sensor) is incorrect or if the magnetic wheel is not correct or damaged
Results of the tests
1POWER SUPPLY CHECKAll OKProblems metOperation
Check the ESP system supply voltage See   E7023  ESP Continue to Step 2Incorrect supply Restore the correct supply, if necessary, replace the faulty components
2CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Delete the errors using the diagnostic equipment.Carry out road to make the control unit check whether there are still errors present. Return to the workshop and check that the fault is no longer present using the diagnostic equipment.End of diagnosis.