199000845 - K068 ESP WARNING LIGHT ON

The brake node sends the ABS warning light on message via the C-CAN to the Body Computer which makes it available via the gateway to the Instrument Panel Node through the B-CAN.
If there are problems in the C-CAN, the control unit warning lights for this network will light up. The "CAN INFORMATION" check is designed for this eventuality
Results of the tests
0PRELIMINARY CHECKSAll OKProblems encounteredOperation
Connect an EXAMINER and check the following on CAN NETWORK INFORMATION:- No control units inactive- No faulty control units- No control units with faulty CAN lineMove on to Step 11. Fault on CAN network2. Communication impossible with the Body Computer1. Continue following the instructions for the diagnostic equipment2. Move on to Step 7
1CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Keeping the diagnostic instrument connected, check the following on the BRAKE NODE:- No system/component errors- No CAN faultsMove on to Step 21. System/components faulty2. Fault on C-CAN network1. Continue following the instructions for the diagnostic equipment2. Continue following the instructions for the diagnostic equipment
2CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Using an Examiner check, in Instrument Panel mode, that there are no errors and that the parameters are present.Move on to Step 3Presence of errorsContinue following the instructions on the diagnostic instrument
3ELECTRICAL POWER SUPPLY CHECKAll OKProblems encounteredOperation
Check the electricity supply to the Instrument Panel Node is correct.Move on to Step 4Fault in positive electrical supply and/or earthReplace defective component (in the case of a fuse, find out what caused it to blow).
4CHECK ELECTRICAL CONNECTIONSAll OKProblems encounteredOperation
Check the wiring between the Body Computer and the Instrument Panel. In particular, check that each individual pin is properly connected.Move on to Step 5Electrical connections not operationalRenew the damaged electrical connections
5ACTIVE DIAGNOSIS CHECKAll OKProblems encounteredOperation
With the Examiner in the Instrument Panel Node ambient check that the ESP warning light is correctly activated in Active Diagnosis.Move on to Step 6The ESP warning light does not flashReplace the Instrument Panel    Op. 5560B10 CONTROL PANEL - R+R
6CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Using the Examiner check, in the Body Computer ambient, that there are no errors and that the parameter specified variesMove on to Step 91. Impossible to connect to the Body Computer control unit.2. Presence of errors3. The parameters do not change1. Move on to Step 72. Continue by following the instructions on the diagnostic instrument3. Move on to Step 9
7ELECTRICAL POWER SUPPLY CHECKAll OKProblems encounteredOperation
Check the electricity supply to the Body Computer Node is correctMove on to Step 8Fault in positive electrical supply and/or earthReplace defective component (in the case of a fuse, find out what caused it to blow).
8CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Use an Examiner to check the possibility of connection to the Body Computer NodeMove on to Step 9Impossible to connect to the Body Computer control unit.Replace Body Computer    Op. 5505A32 BODY COMPUTER - R.R
9CHECK ON CORRECT OPERATIONAll OKProblems encounteredOperation
Check that the fault is no longer presentEnd of diagnosisThe fault persistsReplace the electrohydraulic unit - ABS electronic control unit    Op. 3340A12 ABS HYDRAULIC AND ELECTRONIC CONTROL UNIT - R.R.