Abs failure warning light on
- Make
- Lancia
- Model
- Ypsilon Factory Service Manual
- Year
- 2003–2011
- Section
- Instrument panel › Abs failure warning light on
Fault diagnosisAbs failure warning light on
ABS FAILURE WARNING LIGHT ON
The brakes node sends the ABS warning light on message via the C-CAN network to the body computer which, through the gateway, 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 for this very 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 faults in the CAN | Continue as instructed by the tester | |
| Impossible to converse with the Body Computer 1. Continue following the instructions given by the diagnostic equipment | 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 C-CAN faults | 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). | |
| 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 ELECTRICAL CONNECTIONS | All OK | Problems met | Operation |
| With the Examiner in the Instrument Panel Node ambient, check, in active diagnosis, that the ABS warning light is correctly activated | Continue to Step 6 | The ABS warning 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 warning light status varies | Continue to Step 9 | Impossible to connect with the Body Computer control unit. | Continue to Step 7 | |
| Errors present. | Continue according to 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 | Fault persists | Replace the Body Computer Op. 5505A32 | |
Parts & tools for this job Staging For 2003 Lancia Ypsilon
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