| 1 | CHECK THE CAN NETWORK USING AN EXAMINER | All OK | Problems encountered | Operation |
|---|
| Check for errors in the network control units | Move on to Step 2 | - Presence of errors in CAN control units
- Errors present in the electric steering
| - Solve the problem for the control unit where the error is present. Move on to Step 2
- Solve the problem for the electric steering Move on to Step 2
|
| 2 | CAN IMPEDANCE CHECK | All OK | Problems encountered | Operation |
|---|
| Check the CAN network impedence is correct See Test 5505OA CAN LINE C CHECK | Move on to Step 5 | - ABS control unit faulty through impedance that does not conform
- ABS control unit faulty due to non-compliant impedence
| |
| 3 | CHECK ELECTRIC STEERING POWER SUPPLY | All OK | Problems encountered | Operation |
|---|
| Check the electric steering power supply | Move on to Step 4 | Electric steering power supply missing | Restore the power supply and move on to Step 5 |
| 4 | ELECTRICAL CONNECTION CHECK | All OK | Problems encountered | Operation |
|---|
| Check the wiring from the electric steering to the braking node | Move on to Step 5 | Fault in the wiring | Restore the correct connection between the brake control unit and the electric steering |
| 5 | CHECK ON CORRECT OPERATION | All OK | Problems encountered | Operation |
|---|
| Delete the errors using the diagnostic equipment.Carry out a road test See Test 3350EA ESP SYSTEM ACTUATION CHECKto ensure that the control unit checks whether there are any errors still present.Return to the workshop and check that the fault is no longer present using the diagnostic equipment | End of diagnosis | | |
