ENTRY AND START SYSTEM (for Entry Function) Front Passenger Side Door Entry Lock Function does not Operate

DESCRIPTION

If the front passenger side door entry lock function does not operate but the entry unlock function operates, the communication line between the vehicle and electrical key transmitter is normal. Any of the following components may have a malfunction: 1) touch sensor circuit certification ECU (smart key ECU assembly); 2) front door outside handle assembly (front passenger side); or 3) door electrical key oscillator (front passenger side).

WIRING DIAGRAM

A01623RE19

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK POWER DOOR LOCK OPERATION


    1. When the door control switch on the master switch assembly is operated, check that the locked doors unlock Click here.

      OK
      Locked doors unlock.

    NG

    GO TO POWER DOOR LOCK CONTROL SYSTEM Click here

    OK

  2. READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / Body / Data List.

    5. Read the Data List according to the display on the intelligent tester.

      Body (Main Body ECU RH (Cowl Side Junction Block RH))
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Passenger Lock Pos SW Front passenger side door lock position switch signal/ON or OFF

      ON: Front passenger side door is unlocked

      OFF: Front passenger side door is locked

      		 -
      OK
      On the intelligent tester screen, ON or OFF will be displayed accordingly.
      Result
      Result Proceed to
      OK A
      NG

      B

      (Refer to "Front Passenger Door LOCK/UNLOCK Functions do not Operate" in the problem symptoms table)

    B

    GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Problem Symptoms Table) Click here

    A

  3. READ VALUE USING INTELLIGENT TESTER (DOOR OUTSIDE HANDLE)


    1. Enter the following menus: Body / Entry & Start / Data List.

    2. Read the Data List according to the display on the intelligent tester.

      Entry & Start (Certification ECU (Smart Key ECU Assembly))
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      P-Door Trigger SW Front passenger side door lock switch / ON or OFF

      ON: Entry lock switch is pressed

      OFF: Entry lock switch is not pressed

      		 -
      OK
      On the intelligent tester screen, the display changes between ON and OFF according to the chart above.

    NG

    CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE - DOOR ELECTRICAL KEY OSCILLATOR) Click here

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

  4. CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE - DOOR ELECTRICAL KEY OSCILLATOR)


    1. Disconnect the front door outside handle assembly (front passenger side) connector.

    2. A015Z5PE74

      Disconnect the door electrical key oscillator (front passenger side) connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      n1-1 (TRG-) - n2-9 (TRG-) Always Below 1 Ω
      n1-1 (TRG-) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      o1-1 (TRG-) - o2-9 (TRG-) Always Below 1 Ω
      o1-1 (TRG-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - FRONT DOOR OUTSIDE HANDLE)


    1. A0162NEE08

      Disconnect the certification ECU (smart key ECU assembly) connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      P33-4 (TSW2) - n1-3 (TRG+) Always Below 1 Ω
      P33-4 (TSW2) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      P33-4 (TSW1) - o1-3 (TRG+) Always Below 1 Ω
      P33-4 (TSW1) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT FRONT DOOR OUTSIDE HANDLE ASSEMBLY (for Front Passenger Side)


    1. A0161B1E01

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      1 (TRG-) - 3 (TRG+) Lock switch not pushed 10 kΩ or higher
      1 (TRG-) - 3 (TRG+) Lock switch pushed Below 1 Ω

    NG

    REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (for Front Passenger Side) Click here

    OK

  7. REPLACE DOOR ELECTRICAL KEY OSCILLATOR (for Front Passenger Side)


    1. Replace the door electrical key oscillator (front passenger side) Click here.


    NEXT

  8. CHECK DOOR ELECTRICAL KEY OSCILLATOR (for Front Passenger Side)


    1. Check that the entry functions operate normally Click here.

      OK
      Entry functions operate normally.

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

    END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)