POWER DOOR LOCK CONTROL SYSTEM > Front Passenger Side Door UNLOCK Detection Switch Circuit

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DESCRIPTION

The front passenger door unlock detection switch is built into the front passenger door lock assembly. The switch turns on when the front passenger door is locked and turns off when the door is unlocked.
The body ECU is connected to the front passenger door lock assembly via terminal LSWP and front passenger door lock/unlock state signals are input to the ECU.
The body ECU applies voltage to the door unlock detection switch via terminal LSWP. When the door unlock detection switch is on (there is continuity between the switch terminals), a lock state signal is input to the ECU. When the switch is off (there is no continuity between the switch terminals), an unlock state signal is input.

WIRING DIAGRAM


B109773E04


INSPECTION PROCEDURE

1.READ VALUE OF DATA LIST (DOOR UNLOCK DETECTION SWITCH)

  1. Check the DATA LIST to ensure proper operation of the door unlock detection switch.

    Body ECU: 
    Item
    		Measurement Item /
    Display (Range)
    		Normal Condition
    		Diagnostic Note
    Passenger Lock Pos SW
    		Passenger side door lock position switch signal
    /ON or OFF
    		ON: Passenger side door lock is in UNLOCK position
    OFF: Passenger side door lock is in LOCK position
    		-

    OK:
    The display is as specified in the normal condition.



NG
Go to step 2
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

2.INSPECT FRONT DOOR LOCK ASSEMBLY (DOOR UNLOCK DETECTION SWITCH)


  1. LHD Models:


    B112741E01

    Remove the front door lock assembly RH.

    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance:
      Measurement Condition
      		Door Lock Condition
      		Specified Condition
      Battery positive (+) → Terminal 2
      Battery negative (-) → Terminal 1
      		LOCK
      		7 to 8 (10 kΩ or higher)
      Battery positive (+) → Terminal 1
      Battery negative (-) → Terminal 2
      		UNLOCK
      		7 to 8 (Below 1 Ω)



    B069901E01

  1. RHD Models:
    Remove the front door lock assembly LH.

    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance:
      Measurement Condition
      		Door Lock Condition
      		Specified Condition
      Battery positive (+) → Terminal 4
      Battery negative (-) → Terminal 3
      		LOCK
      		7 to 8 (10 kΩ or higher)
      Battery positive (+) → Terminal 3
      Battery negative (-) → Terminal 4
      		UNLOCK
      		7 to 8 (Below 1 Ω)



NG
REPLACE FRONT DOOR LOCK ASSEMBLY
OK


3.CHECK WIRE HARNESS (FRONT DOOR LOCK ASSEMBLY - INSTRUMENT PANEL J/B)


    B111708E03

  1. LHD Models:
    Disconnect the front door lock assembly connector.

    1. Disconnect the instrument panel J/B connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance:
      Tester Connection
      		Condition
      		Specified Condition
      D13-7 (LSSR) - B7-27 (LSWP)
      		Always
      		Below 1 Ω
      D13-8 (E) - Body ground
      		Always
      		Below 1 Ω



    B111708E04

  1. RHD Models:
    Disconnect the front door lock assembly connector.

    1. Disconnect the instrument panel J/B connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance:
      Tester Connection
      		Condition
      		Specified Condition
      D13-8 (LSSR) - B7-27 (LSWP)
      		Always
      		Below 1 Ω
      D13-7 (E) - Body ground
      		Always
      		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE