2427561 - K68 CONTROL PANEL ESP WARNING LIGHT ON
 | The brakes node sends the ABS warning light on message via the C-CAN to the Body Computer which makes it available via the B-CAN network to the instrument panel node. |
 | If there are faults at the C-CAN, the control unit failure warning lights will light up. The CAN INFORMATION check is designed precisely for this purpose |
| Results of the tests | ||||
| 0 | PRELIMINARY CHECK | All OK | Problems met | Operation |
|---|---|---|---|---|
| Check the instrument panel display for an ESP system fault message | Continue to Step 4 | Message present | Continue to Step 1 | |
| 1 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
Connect the EXAMINER diagnostic equipment and check the CAN NETWORK INFORMATION:
| Continue to Step 3 | Presence of fault in the CAN | Continue as instructed by the tester | |
| Presence of errors at Brake Node | Continue to Step 2 | |||
| 2 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
Keep the tester connected and check the BRAKE NODE for:
| Continue to Step 3 | System/component fault | Continue as instructed by the tester | |
| Warning light fault/warning light damaged | Continue to Step 3 | |||
| 3 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
Keep the tester connected and check the BRAKE NODE for:
| Continue to Step 5 | Warning light does not flash | Continue to Step 4 | |
| 4 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
Keeping the diagnostic equipment connected, check at the INSTRUMENT PANEL NODE:
| Continue to Step 5 | Warning light does not flash | Replace the instrument panel | |
| 5 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | Fault persists | Replace ABS control unit | |
| The brakes node sends the ABS warning light on message via the C-CAN to the Body Computer which makes it available via the B-CAN network to the instrument panel node. |
| If there are faults at the C-CAN, the control unit failure warning lights will light up. The CAN INFORMATION check is designed precisely for this purpose |
| Results of the tests | ||||
| 0 | PRELIMINARY CHECK | All OK | Problems met | Operation |
|---|---|---|---|---|
Connect the EXAMINER diagnostic equipment and check the CAN NETWORK INFORMATION:
| Continue to Step 1 | Presence of fault in the CAN | Continue as instructed by the tester | |
| Impossible to converse with the Body Computer | Continue to Step 7 | |||
| 1 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
Keep the tester connected and check the BRAKE NODE for:
| Continue to Step 2 | System/component faults | Continue as instructed by the tester | |
| Presence of faults at the C-CAN | Continue to Step 9 | |||
| 2 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
| Using the Examiner check, in the Instrument Panel Node ambient, that there are no errors and the following parameters are present. | Continue to Step 3 | There are errors | Continue in accordance with the instructions for the diagnostic equipment | |
| 3 | ELECTRIC POWER SUPPLY CHECK | All OK | Problems met | Operation |
| Check that the Instrument Panel Node electrical power supply is correct. | Continue to Step 4 | Positive and/or earth electrical power supply fault. | Replace the defective component (if a fuse is involved, search for the cause of the problem).Continue to Step 4 | |
| 4 | CHECK ELECTRICAL CONNECTIONS | All OK | Problems met | Operation |
| Check the electrical connections between the Body Computer and the Instrument Panel, in particular that each individual pin is correctly connected. | Continue to Step 5 | Electrical connections not working. | Restore damaged electrical connection. | |
| 5 | CHECK WITH ACTIVE DIAGNOSIS | All OK | Problems met | Operation |
| With the Examiner in the Instrument Panel Node ambient, check, in active diagnosis, that the ESP warning light is correctly activated | Continue to Step 6 | The ESP light does not flash | Replace the instrument panel Op. 5560B11 | |
| 6 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
| Using the Examiner, check, in the Body Computer Node ambient, that there are no errors and that the specific parameter varies. | Continue to Step 9 | Impossible to connect with the Body Computer control unit. | Continue to Step 7 | |
| Errors present. | Continue in accordance with the instructions for the diagnostic equipment. | |||
| The parameter values do not change | Continue to Step 9 | |||
| 7 | ELECTRIC POWER SUPPLY CHECK | All OK | Problems met | Operation |
| Check that the Body Computer Node electrical power supply is correct. | Continue to Step 8 | Positive and/or earth electrical power supply fault. | Replace the defective component (if a fuse is involved, search for the cause of the problem). | |
| 8 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
| Using the Examiner, check the possibility of connecting with the Body Computer Node. | Continue to Step 6 | Impossible to connect with the Body Computer control unit. | Replace the Body Computer Op. 5505A32 | |
| 9 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | The fault persists | Replace the Body Computer Op. 5505A32 | |