169000664 - Z84 VARIANT CODING ERROR

The diagnostic equipment signals the following error: "C1881 Variant error: the brake control unit is not suitable for the engine type"
This error is signalled if the ABS control unit is not plausible with the engine management control unit
1ENGINE MANAGEMENT CONTROL UNIT COMPATIBILITY CHECKAll OKProblems encounteredOperation
Check that the engine management control unit design number is compatible with the part number for the Model-Version-Series in question.Move on to Step 2 1The design number is not compatibleReplace the engine management control unit    Op. 1060G80 DS ELECTRIC INJECTION CONTROL UNIT - R Rand move on to Step 3
2ABS CONTROL UNIT COMPATIBILITY CHECKAll OKProblems encounteredOperation
Check that the ABS control unit design number is compatible with the part number for the Model-Version-Series in questionMove on to Step 3 1The design number is not compatibleReplace the ABS electrohydraulic control unit with one that is compatible    Op. 3340A12 ABS HYDRAULIC AND ELECTRONIC CONTROL UNITand move on to Step 3
3CHECK ON CORRECT OPERATIONAll OKProblems encounteredOperation
Delete the errors using the diagnostic equipment.Turn the key OFF and then ON to check that the error is no longer presentEnd of diagnosis