Power Door Lock Control System Driver Side Door Unlock Detection Switch Circuit

Body Electrical. Camry. Acv40 Gsv40
Door Lock. Camry. Acv40 Gsv40

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING DATA LIST (DOOR UNLOCK DETECTION SWITCH)

INSPECT FRONT DOOR LOCK ASSEMBLY (DOOR UNLOCK DETECTION SWITCH)

CHECK WIRE HARNESS (FRONT DOOR LOCK ASSEMBLY - MAIN BODY ECU)

POWER DOOR LOCK CONTROL SYSTEM - Driver Side Door UNLOCK Detection Switch Circuit


DESCRIPTION

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

WIRING DIAGRAM


Camry. Acv40 Gsv40.Door Lock.Power Door Lock Control System.Power Door Lock Control System Driver Side Door Unlock Detection Switch Circuit


INSPECTION PROCEDURE

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

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

    Main Body
    Item
    		Measurement Item /
    Display (Range)
    		Normal Condition
    		Diagnostic Note
    D-Door Lock Pos SW
    		Driver side door unlock detection switch signal
    /ON or OFF
    		ON: Driver side door is unlocked
    OFF: Driver side door is locked
    		-
    OK:
    The display is as specified in the normal condition column.


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)


    Camry. Acv40 Gsv40.Door Lock.Power Door Lock Control System.Power Door Lock Control System Driver Side Door Unlock Detection Switch Circuit

  1. Inspect LHD models.

    1. Remove the front door lock assembly LH.

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

      Standard resistance:
      Tester Connection
      		Measurement Condition
      		Door Lock Condition
      		Specified Condition
      7 - 8
      		Battery positive (+) → Terminal 4
      Battery negative (-) → Terminal 1
      		Lock
      		10 kΩ or higher
      7 - 8
      		Battery positive (+) → Terminal 1
      Battery negative (-) → Terminal 4
      		Unlock
      		Below 1 Ω


    Camry. Acv40 Gsv40.Door Lock.Power Door Lock Control System.Power Door Lock Control System Driver Side Door Unlock Detection Switch Circuit

  1. Inspect RHD models.

    1. Remove the front door lock assembly RH.

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

      Standard resistance:
      Tester Connection
      		Measurement Condition
      		Door Lock Condition
      		Specified Condition
      7 - 8
      		Battery positive (+) → Terminal 4
      Battery negative (-) → Terminal 1
      		Lock
      		10 kΩ or higher
      7 - 8
      		Battery positive (+) → Terminal 1
      Battery negative (-) → Terminal 4
      		Unlock
      		Below 1 Ω


NG
REPLACE FRONT DOOR LOCK ASSEMBLY
OK


3.CHECK WIRE HARNESS (FRONT DOOR LOCK ASSEMBLY - MAIN BODY ECU)


    Camry. Acv40 Gsv40.Door Lock.Power Door Lock Control System.Power Door Lock Control System Driver Side Door Unlock Detection Switch Circuit

  1. Disconnect the front door lock assembly connector.

  1. Disconnect the main body ECU connector.

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

    Standard resistance:
    Tester Connection
    (Symbols)
    		Condition
    		Specified Condition
    (*1) I7-8 (LSSR) - E7-9 (LSWD)
    		Always
    		Below 1 Ω
    (*1) I7-8 (LSSR) - Body ground
    		Always
    		10 kΩ or higher
    (*1) I7-7 (E) - Body ground
    		Always
    		Below 1 Ω
    (*2) M8-7 (LSSR) - E7-9 (LSWD)
    		Always
    		Below 1 Ω
    (*2) M8-7 (LSSR) - Body ground
    		Always
    		10 kΩ or higher
    (*2) M8-8 (E) - Body ground
    		Always
    		Below 1 Ω
    *1: LHD
    *2: RHD


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE MAIN BODY ECU