ENTRY AND START SYSTEM > Front Passenger Side Door Entry Unlock Function does not Operate

for Preparation Click here


DESCRIPTION

  1. for LHD
    When an ID code from the door electrical key oscillator RH matches the ID code from the key, the certification ECU outputs an SEL signal (Lo when output) to the door electrical key oscillator RH, activates the touch sensor located on the backside of the outside door handle, and enters unlock standby mode. When the touch sensor is touched, the door electrical key oscillator RH sends a SENS signal (Lo when output) to the certification ECU and the certification ECU sends an unlock signal to the front passenger side door lock.
  1. for RHD
    When an ID code from the door electrical key oscillator LH matches the ID code from the key, the certification ECU outputs an SEL signal (Lo when output) to the door electrical key oscillator LH, activates the touch sensor located on the backside of the outside door handle, and enters unlock standby mode. When the touch sensor is touched, the door electrical key oscillator LH sends a SENS signal (Lo when output) to the certification ECU and the certification ECU sends an unlock signal to the front passenger side door lock.

WIRING DIAGRAM


B133439E02


INSPECTION PROCEDURE

1.CHECK FOR DTC
  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch on (IG) and turn the tester ON.

  1. By following the tester screen display, check whether any DTCs are output.

    OK:
    No DTC output.


NG
Go to DIAGNOSTIC TROUBLE CODE CHART
OK


2.CHECK MANUAL DOOR UNLOCK OPERATION
  1. Check that all the doors unlock when the door control switch (for manual operation) is turned to UNLOCK.

    OK:
    All doors can be unlocked with door control switch.


NG
Go to POWER DOOR LOCK CONTROL SYSTEM
OK


3.CHECK WIRELESS DOOR LOCK CONTROL OPERATION
  1. Check that the wireless door lock and unlock functions operates normally (Click here).

    OK:
    Wireless door lock and unlock functions operate normally.


NG
Go to WIRELESS DOOR LOCK CONTROL SYSTEM (w/ ENTRY AND START SYSTEM)
OK


4.READ VALUE USING INTELLIGENT TESTER (DOOR COURTESY LIGHT SWITCH)
  1. Check the Data List for proper functioning of the door courtesy light switch (passenger side).

    Main body ECU: 
    Item
    Measurement Item / Range (Display)
    Normal Condition
    Diagnostic Note
    P Door Courtesy SW
    Passenger side courtesy light switch signal / ON or OFF
    ON: Passenger side door is open
    OFF: Passenger side door is closed
    -

    OK:
    On tester screen, item changes between ON and OFF according to above chart.


NG
Go to LIGHTING SYSTEM
OK


5.READ VALUE USING INTELLIGENT TESTER (LOCK POSITION SWITCH)
  1. Check the Data List for proper functioning of the door lock position switch (passenger side).

    Main body ECU: 
    Item
    Measurement Item / Range (Display)
    Normal Condition
    Diagnostic Note
    P-Door Lock Pos SW
    Passenger side door unlock detection switch signal / ON or OFF
    ON: Door is unlocked
    OFF: Door is locked
    -

    OK:
    On tester screen, item changes between ON and OFF according to above chart.


NG
Go to POWER DOOR LOCK CONTROL SYSTEM
OK


6.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FRONT PASSENGER SIDE SELECT)
  1. Select the Active Test, use the intelligent tester to generate a control command, and then check that the door electrical key oscillator operates.

    Certification ECU: 
    Item
    Test Details
    Diagnostic Note
    P-Seat Select
    Passenger side electrical key oscillator ON / OFF
    -

    OK:
    ON (P-Seat Select is ON) appears on screen.


NG
REPLACE ECU AGGREGATION BOX (CERTIFICATION ECU)
OK


7.READ VALUE USING INTELLIGENT TESTER (TOUCH SENSOR)
  1. With "P-Seat Select" ON, check the Data List to confirm the operation of the touch sensor.

    Certification ECU: 
    Item
    Measurement Item / Range (Display)
    Normal Condition
    Diagnostic Note
    P-Door Touch Sensor
    Front passenger side door touch sensor / ON or OFF
    ON: Sensor is touched
    OFF: Sensor is not touched
    -

    OK:
    When passenger side door touch sensor is set to ON, ON (sensor is touched) appears on screen.


NG
Go to step 9
OK


8.CHECK ECU AGGREGATION BOX (OPERATION)
  1. Temporarily replace the ECU aggregation box (certification ECU) with a new or normally functioning one.

  1. Check that the entry unlock function operates normally (Click here).

    OK:
    Entry unlock function operates normally.


NG
REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)
OK

END (CERTIFICATION ECU IS DEFECTIVE) 

9.CHECK DOOR ELECTRICAL KEY OSCILLATOR (for Passenger Side)
B111542E04
  1. Measure the voltage of the oscillator.

    Standard voltage:
    Tester Connection
    Condition
    Specified Condition
    4 (SEL) - Body ground
    During Active Test
    Below 1 V
    6 (SENS) - Body ground
    Touch sensor is touched during Active Test
    Below 1 V
    Touch sensor is not touched during Active Test
    10 to 14 V


OK
REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)
NG


10.CHECK WIRE HARNESS (DOOR ELECTRICAL KEY OSCILLATOR - ELECTRICAL KEY ANTENNA)
B108040E31
  1. Disconnect the Y2*1 or Z2*2 oscillator connector.

  1. Disconnect the Y1*1 or Z1*2 antenna connector.

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

    HINT:
    *1: for LHD
    *2: for RHD

    Standard resistance:
    for LHD:
    Tester Connection
    Specified Condition
    Y2-2 (SGT) - Y1-6 (SGT)
    Below 1 Ω
    Y2-3 (ANT1) - Y1-5 (ANT1)
    Y2-8 (ANT2) - Y1-2 (ANT2)
    Y2-9 (TRG-) - Y1-1 (TRG-)
    Y2-2 (SGT) or Y1-6 (SGT) - Body ground
    10 kΩ or higher
    Y2-3 (ANT1) or Y1-5 (ANT1) - Body ground
    Y2-8 (ANT2) or Y1-2 (ANT2) - Body ground
    Y2-9 (TRG-) or Y1-1 (TRG-) - Body ground
    for RHD:
    Tester Connection
    Specified Condition
    Z2-2 (SGT) - Z1-6 (SGT)
    Below 1 Ω
    Z2-3 (ANT1) - Z1-5 (ANT1)
    Z2-8 (ANT2) - Z1-2 (ANT2)
    Z2-9 (TRG-) - Z1-1 (TRG-)
    Z2-2 (SGT) or Z1-6 (SGT) - Body ground
    10 kΩ or higher
    Z2-3 (ANT1) or Z1-5 (ANT1) - Body ground
    Z2-8 (ANT2) or Z1-2 (ANT2) - Body ground
    Z2-9 (TRG-) or Z1-1 (TRG-) - Body ground


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


11.CHECK WIRE HARNESS (CERTIFICATION ECU - DOOR ELECTRICAL KEY OSCILLATOR)
B108060E28
  1. Disconnect the E63 ECU connector.

  1. Disconnect the Y2*1 or Z2*2 oscillator connector.

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

    HINT:
    *1: for LHD
    *2: for RHD

    Standard resistance:
    for LHD:
    Tester Connection
    Specified Condition
    E63-6 (SEL2) - Y2-4 (SEL)
    Below 1 Ω
    E63-23 (SEN2) - Y2-6 (SEN2)
    E63-35 (CLG2) - Y2-10 (CLG)
    E63-36 (DG2B) - Y2-5 (CLGB)
    E63-6 (SEL2) or Y2-4 (SEL) - Body ground
    10 kΩ or higher
    E63-23 (SEN2) or Y2-6 (SEN2) - Body ground
    E63-35 (CLG2) or Y2-10 (CLG) - Body ground
    E63-36 (DG2B) or Y2-5 (CLGB) - Body ground
    for RHD:
    Tester Connection
    Specified Condition
    E63-6 (SEL2) - Z2-4 (SEL)
    Below 1 Ω
    E63-23 (SEN2) - Z2-6 (SEN2)
    E63-35 (CLG2) - Z2-10 (CLG)
    E63-36 (DG2B) - Z2-5 (CLGB)
    E63-6 (SEL2) or Z2-4 (SEL) - Body ground
    10 kΩ or higher
    E63-23 (SEN2) or Z2-6 (SEN2) - Body ground
    E63-35 (CLG2) or Z2-10 (CLG) - Body ground
    E63-36 (DG2B) or Z2-5 (CLGB) - Body ground


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE DOOR ELECTRICAL KEY OSCILLATOR (for Passenger Side)