P10 Door locking device not working
- Make
- Fiat
- Model
- Seicento Factory Service Manual
- Year
- 1998–2010
- Section
- Doors › P10 Door locking device not working
DiagnosisP10 Door locking device not working
P10 Door locking device not working
Operating the door locking device with the key (or with the remote control) the doors do not lock/un- lock at all.
If the door locking device works with the key but not with the remote control, see table P11
Preliminarily check:
– the repeat protection device has not been engaged
– battery voltage not less than 9 V
In these conditions, in fact, the door locking device is not powered by the ECU
| Step | Validity Operation to be performed | Test results | ||
|---|---|---|---|---|
| All OK | Problems found | Intervention | ||
| 1 | CHECK DOOR LOCKING DEVICE ELECTRIC CIRCUIT Check in sequence: – door locking device fuse (F1) – connection between junction unit and door locking device ECU – connection between door locking device ECU and door lock (geared motor) – door locking device ECU earth – door lock switch earth (Wiring diagram: E3040 “Door locking device”) |
Go to Step 2 | Incorrect connections | Restore connections |
| Faulty component | Replace component (if it is a fuse, investigate the causes which may have triggered it) | |||
| All OK | – | – | ||
| 2 | CHECK DOOR LOCKING DEVICE ECU AND GEARED MOTORS Lock/unlock the doors and check: – 12V between door locking device ECU connector pins 2 and 3 – polarity is inverted at each operation (Wiring diagram: E3040 “Door locking device”) |
Go to Step 3 | No voltage | Check and if required replace the door lock geared motors PROCEDURE OP. 7005N27 |
| Regular voltage | Replace the door locking device ECU PROCEDURE OP. 7005N40 |
|||
| All OK | – | – | ||
| 3 | CHECK CORRECT OPERATION Check the fault is no longer present |
End of test | – | – |
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