| | Results of the tests |
| 1 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Connect
the diagnostic equipment and, in the PARAMETERS ambient, display
the wheel speeds.With the vehicle raised on a lift, rotate the wheels manually
and check that the wheel speed signal varies using the diagnostic
equipment. | Continue to Step 3 | One or more wheels do
not signal the correct speed variation. | Carry out the checks on the
wheel in questionContinue to Step 2 |
| 2 | SENSOR CHECK | All OK | Problems met | Operation |
|---|
| Visually
inspect the state of the sensors involved (front and/or rear, right
and/or left). In particular, check: - that there are no metal shavings in the magnetic tracks
for the flywheels
- that the sensor has been correctly fitted
- that the sensor does not show signs of abrasion or distortion
| Continue to Step 3 | Metal shavings present | Clean the flywheel track |
| Sensor incorrectly fitted | Refit correctly |
| Left front sensor faulty | Replace the sensor Op. 3340A26 |
| Right front sensor faulty | Replace the sensor Op. 3340A28 |
| Left rear sensor faulty | Replace the sensor Op. 3340A35 |
| Right rear sensor faulty | Replace the sensor Op. 3340A37 |
| 3 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Delete
the errors using the diagnostic equipment.Carry out road See Test 3340A ABS intervention check , See Test 3340A ABS intervention check and See Test 3340A ABS intervention check in
order to make the control unit check whether there are still errors
present. Return to the workshop and check that the fault is no longer
present using the diagnostic equipment. | End of diagnosis | The fault persists | Continue to Step 1 |
