Workshop Manuals Factory service & repair Alfa Romeo
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Transmission (4x4)12 Axles and driveshafts13 Brakes14 Steering15 Suspension and wheels16 Heating, air conditioning and auxiliary units17 Electrical equipment18 Body fittings19 Body panels and frame20 Wiring diagrams and electrical functions21 Wiring harnesses22 Connectors and pin-outs23 Fault diagnosis24 Special tools
Alfa Romeo 159 Factory Service Manual (2005-2011)18 · Body fittings
18 · Body & interior

Check on door lock microswitches

Make
Alfa Romeo
Model
159 Factory Service Manual
Year
2005–2011
Section
General › Check on door lock microswitches
Body fittingsCheck on door lock microswitches

CHECK ON DOOR LOCK MICROSWITCHES

Check 70C

CHECK TO BE PERFORMEDRESOLUTION 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

Op. 7005N20 FRONT SIDE DOOR LOCK MOTOR/CATCH ASSEMBLY, LEFT OR RIGHT - R.R WITH DOOR PANEL AND SUPPORT FRAME REMOVED

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

Op. 7005N20 FRONT SIDE DOOR LOCK MOTOR/CATCH ASSEMBLY, LEFT OR RIGHT - R.R WITH DOOR PANEL AND SUPPORT FRAME REMOVED

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

Op. 7010N20 REAR SIDE DOOR LOCK MOTOR/CATCH ASSEMBLY - R.R. WITH DOOR PANEL AND SUPPORT FRAME REMOVED

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

Op. 7010N20 REAR SIDE DOOR LOCK MOTOR/CATCH ASSEMBLY - R.R. WITH DOOR PANEL AND SUPPORT FRAME REMOVED

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

Op. 7025B38 BOOT LID LOCK - R+R

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.

See E7015 ALARM

Restore earth connections

Parts & tools for this job Staging For 2005 Alfa Romeo 159

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