| | Results of the tests |
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation |
|---|
| Connect the EXAMINER diagnostic equipment and check the CAN NETWORK INFORMATION: - For inactive control units
- For control units with errors
- For control units with CAN errors
| Continue to Step 5 | Presence of faults in the CAN network | Continue as instructed by the tester |
| Impossible to converse with the Body Computer | Continue to Step 2 |
| 1 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Keeping the Examiner connected, check the plausibility of the brake fluid level parameter at the Body Computer Node | Continue to Step 4 | The parameter is not plausible | Replace the Body Computer Op. 5505A32 |
| Impossible to connect with the Body Computer control unit | Continue to Step 2 |
| 2 | ELECTRICAL POWER SUPPLY CHECK | All OK | Problems met | Operation |
|---|
| Check that the Body Computer Node electrical power supply is correct. | Continue to Step 3 | Positive and/or earth electrical power supply fault. | Replace the defective component (if a fuse is involved, search for the cause of the problem). |
| 3 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Using the Examiner, check the possibility of connecting with the Body Computer Node. | Continue to Step 1 | Impossible to connect with the Body Computer control unit | Replace the Body Computer Op. 5505A32 |
| 4 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check that the fault is no longer present | End of diagnosis | The fault persists | Continue to Step 5 |
| 5 | BRAKE FLUID LEVEL CHECK | All OK | Problems met | Operation |
|---|
| Check that the brake fluid level is not low | Continue to Step 9 | Brake fluid level too low | Continue to Step 6 |
| 6 | TOP UP BRAKE FLUID LEVEL | All OK | Problems met | Operation |
|---|
| Restore the brake fluid level and check that the warning light goes out | End of diagnosis | The warning light does not go off | Continue to Step 7 |
| 7 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Keeping the diagnostic equipment connected, check that there are no CAN errors at the BRAKE NODE | Continue to Step 8 | Presence of C-CAN faults | Continue to Step 14 |
| 8 | CHECKING ELECTRICAL EQUIPMENT | All OK | Problems met | Operation |
|---|
| Disconnect the connector from the fluid level sensor and, using a multimeter, check the efficiency of the connection to earth See E4010 INSTRUMENT PANEL | Continue to Step 9 | Faulty earth | Restore earth connection efficiency See E4010 INSTRUMENT PANEL |
| 9 | CHECKING ELECTRICAL EQUIPMENT | All OK | Problems met | Operation |
|---|
| Check the continuity of the cable from the connector to the Body computer See E4010 INSTRUMENT PANEL | Continue to Step 10 | Cable broken | Restore connection See E4010 INSTRUMENT PANEL |
| 10 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Connect the Examiner and check the plausibility, at the Body Computer Node, of the handbrake applied parameter | Continue to Step 11 | The parameter is not plausible | Continue according to the instructions See table K72 HANDBRAKE APPLIED WARNING LIGHT |
| 11 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Connect the Examiner or keep it connected and check the operation of the brake fluid level warning light at the Instrument Panel Node through active diagnosis | Continue to Step 12 | The warning light does not flash | Replace instrument panel Op. 5560B11 |
| 12 | ELECTRICAL POWER SUPPLY CHECK | All OK | Problems met | Operation |
|---|
| Check that the Instrument Panel Node electrical power supply is correct. | Continue to Step 13 | Positive and/or earth electrical power supply fault. | Replace the defective component (if a fuse is involved, search for the cause of the problem). |
| 13 | 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 14 | Electrical connections not working. | Restore damaged electrical connection. |
| 14 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Keeping the Examiner connected, check the plausibility of the brake fluid level parameter at the Body Computer Node | Continue to Step 15 | The parameter is not plausible | Replace the Body Computer Op. 5505A32 |
| 15 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check that the fault is no longer present | End of diagnosis | Fault persists | Replace the brake fluid reservoir and sensor Op. 3330C30 |
