POWER DOOR LOCK CONTROL SYSTEM > Only Passenger Door LOCK / UNLOCK Functions do not Operate

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DESCRIPTION

The passenger door ECU receives lock/unlock switch signals and activates the door lock motor according to the signals.

WIRING DIAGRAM


B106235E04


B106235E06


INSPECTION PROCEDURE

1.PERFORM ACTIVE TEST BY INTELLIGENT TESTER (FRONT DOOR LOCK MOTOR)

  1. Select the Active Test, use the intelligent tester to generate a control command, and then check that the door lock motor operates.


Passenger door ECU:

Item
Test Details
Diagnostic Note
Door Lock
Operate door lock motor LOCK/UNLOCK
-

OK:
Door locks/unlocks.



NG
Go to step 2
OK

REPLACE PASSENGER DOOR ECU 

2.INSPECT FRONT DOOR LOCK ASSEMBLY (PASSENGER SIDE)

B109615E01

  1. Apply battery voltage to the door lock motor and check the operation of the door lock motor.

    OK:
    LHD (w/ Double locking system) 
    Measurement Condition
    		Specified Condition
    Battery positive (+) → Terminal 2
    Battery negative (-) → Terminal 1
    		Lock
    Battery positive (+) → Terminal 1
    Battery negative (-) → Terminal 2
    		Unlock

    LHD (w/o Double locking system):
    Measurement Condition
    		Specified Condition
    Battery positive (+) → Terminal 4
    Battery negative (-) → Terminal 1
    		Lock
    Battery positive(+) → Terminal 1
    Battery negative (-) → Terminal 4
    		Unlock

    RHD (w/ Double locking system):
    Measurement Condition
    		Specified Condition
    Battery positive (+) → Terminal 4
    Battery negative (-) → Terminal 3
    		Lock
    Battery positive (+) → Terminal 3
    Battery negative (-) → Terminal 4
    		Unlock

    RHD (w/o Double locking system):
    Measurement Condition
    		Specified Condition
    Battery positive (+) → Terminal 4
    Battery negative (-) → Terminal 1
    		Lock
    Battery positive (+) → Terminal 1
    Battery negative (-) → Terminal 4
    		Unlock



NG
REPLACE FRONT DOOR LOCK ASSEMBLY (PASSENGER SIDE)
OK


3.READ VALUE OF INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH)

  1. Check the Data List for proper functioning of the door lock position switch.


Passenger door ECU:

Item
Measurement Item/Display (Range)
Normal Condition
Diagnostic Note
Lock Pos SW
Passenger side door lock position switch signal/ON or OFF
ON: Passenger side door is unlocked
OFF: Passenger side door is locked
-

OK:
ON (passenger side door is unlocked) appears on screen.



NG
Go to step 4
OK

REPLACE PASSENGER DOOR ECU 

4.INSPECT FRONT DOOR LOCK ASSEMBLY (PASSENGER SIDE) (DOOR LOCK POSITION SWITCH)

B109615E01

  1. Measure the resistance of the position switch.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    7 - 8
    		Unlock
    		Below 1 Ω
    7 - 8
    		Lock
    		10 kΩ or higher



NG
REPLACE FRONT DOOR LOCK ASSEMBLY (PASSENGER SIDE)
OK


5.CHECK WIRE HARNESS (PASSENGER DOOR ECU - FRONT DOOR LOCK ASSEMBLY)
B108956E08

  1. Disconnect the N3*1 or O4*2 ECU connector.

  1. Disconnect the N6*1 or O6*2 door lock connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    LHD 
    Tester Connection
    		Specified Condition
    N3-1 (A-) - N6-1 (UL)
    		Below 1 Ω
    N3-2 (A+) - N6-2 (L)*3
    		Below 1 Ω
    N3-2 (A+) - N6-4 (L)*4
    		Below 1 Ω
    N3-14 (LSW) - N6-7 (LSSR)
    		Below 1 Ω
    N3-13 (LSWE) - N6-8 (E)
    		Below 1 Ω

    RHD:
    Tester Connection
    		Specified Condition
    O4-1 (A-) - O6-3 (UL)*3
    		Below 1 Ω
    O4-1 (A-) - O6-1 (UL)*4
    		Below 1 Ω
    O4-1 (A+) - O6-4 (L)
    		Below 1 Ω
    O4-14 (LSW) - O6-7 (LSSR)
    		Below 1 Ω
    O4-13 (LSWE) - O6-8 (E)
    		Below 1 Ω

    HINT:
    *1: LHD
    *2: RHD
    *3: w/ Double locking system
    *4: w/o Double locking system



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE PASSENGER DOOR ECU