Check on door lock microswitches
- Make
- Alfa Romeo
- Model
- 159 Factory Service Manual
- Year
- 2005–2011
- Section
- General › Check on door lock microswitches
CHECK ON DOOR LOCK MICROSWITCHES
| CHECK TO BE PERFORMED | RESOLUTION IF THE CHECK IS NOT OK | |
|---|---|---|
| 1 | Disconnect the wiring connector from the front driver''s door lock gear motor See N050 DRIVER'S FRONT DOOR LOCK GEARED MOTOR With the tester in Ohmmeter mode, connect the probes to the gear motor connector between Pins B and C See N050 DRIVER'S FRONT DOOR LOCK GEARED MOTOR Check that with the door closed the circuit is open and with the door open it is closed | Replace the door switch |
| 2 | Disconnect the wiring connector from the front passenger door lock gear motor See N051 RIGHT FRONT DOOR LOCK GEARED MOTOR With the tester in Ohmmeter mode, connect the probes to the gear motor connector between Pins C and D See N051 RIGHT FRONT DOOR LOCK GEARED MOTOR Check that with the door closed the circuit is open and with the door open it is closed | Replace the door switch |
| 3 | Disconnect the wiring connector from the left rear door lock gear motor See N055 LEFT REAR DOOR LOCK GEARED MOTOR With the tester in Ohmmeter mode, connect the probes to the gear motor connector between Pins B and C See N055 LEFT REAR DOOR LOCK GEARED MOTOR Check that with the door closed the circuit is open and with the door open it is closed | Replace the door switch |
| 4 | Disconnect the wiring connector from the right rear door lock gear motor See N056 RIGHT REAR DOOR LOCK GEARED MOTOR With the tester in Ohmmeter mode, connect the probes to the gear motor connector between Pins C and D See N056 RIGHT REAR DOOR LOCK GEARED MOTOR Check that with the door closed the circuit is open and with the door open it is closed | Replace the door switch |
| 5 | Disconnect the wiring connector from the boot opening switch See I011 BOOT RELEASE SWITCH With the tester in Ohmmeter mode, connect the probes to the switch connector between Pins 1 and 2. Check that with the tailgate closed the circuit is open and with the tailgate open it is closed Repeat the test by connecting between Pins 2 and 3, with the same result | Replace the boot switch |
| 6 | Disconnect the wiring connector from the bonnect opening switch See I010 BONNET RELEASE SWITCH With the tester in Ohmmeter mode, connect the probes to the switch connector between Pins 1 and 2. See I010 BONNET RELEASE SWITCH Check that with the bonnet closed the circuit is open and with the bonnet open it is closed | Replace the bonnet switch |
| 7 | Check that the door, bonnet and boot microswitches are correcly earthed. | Restore earth connections |
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