3233075 - K03 SPEEDOMETER NOT WORKING
With the ignition key ON, the speedometer does not work or works irregularly| Results of the tests | ||||
| 1 | CHECK SPEEDOMETER ELECTRICAL CIRCUIT | All OK | Problems met | Operation |
|---|---|---|---|---|
Check, in order:
| Continue to Step 2 | Component defective | Replace the component involved (if a fuse is involved, search for the cause of the problem) | |
| Connections broken | Restore the connections ( | |||
| 2 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
| Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socketCheck that there are no faults in the ABS control unit. In particular, check the speedometer signal is sent properly by the control unit. The signal is pulse-type: two pulses per wheel revolution | Continue to Step 3 | Signal not sent | Check the ABS control unit and replace if necessary Op. 3340A12 | |
| 3 | SPEEDOMETER CHECK | All OK | Problems met | Operation |
| Check the operation of the speedometer: see DESCRIPTION AND OPERATION: 5560 INSTRUMENT PANEL | Continue to Step 4 | Instrument not working | Replace the speedometer Op. 5560B02 | |
| 4 | CHECK CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | Fault persists | Search for the fault starting from another symptom' | |