ENTRY AND START SYSTEM(for Entry Function) Front Passenger Side Door Entry Lock and Unlock Functions do not Operate

DTC Code DTC Name
Front Passenger Side Door Entry Lock and Unlock Functions do not Operate

DESCRIPTION

When the front passenger side door entry lock and unlock functions do not operate, one of the following may be malfunctioning: 1) the power door lock system, 2) the front door outside handle (for passenger side), or 3) the certification ECU.

WIRING DIAGRAM

B216377E15

CAUTION / NOTICE / HINT

Note:
  • The entry and start system (for entry function) uses a multiplex communication system (LIN communication system) and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting (Click here). Troubleshoot the entry and start system (for entry function) after confirming that the communication system is functioning properly.

  • When using the intelligent tester with the engine switch off to troubleshoot: Connect the intelligent tester to the DLC3, and turn a courtesy light switch on and off at 1.5-second intervals until communication between the tester and vehicle begins.

  • Check that there are no electrical key transmitters in the vehicle.

  • Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output (Click here).

  • When checking the entry lock operation multiple times, the lock operation may be limited to 2 consecutive operations according to the settings. In order to perform the entry lock operation 3 or more times, an unlock operation must be performed once (any type of unlock operation is sufficient). However, only consecutive entry lock operations are limited. Using the wireless lock or other types of lock operations, it is possible to perform consecutive lock operations without this limitation.

PROCEDURE

  1. CHECK POWER DOOR LOCK OPERATION

    1. When the door control switch on the master switch assembly is operated, check that the doors unlock and lock according to the switch operation (Click here).

      OK

      Door locks operate normally.

    GO TO POWER DOOR LOCK CONTROL SYSTEM

  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 / Main Body / Data List.

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

      Table 1. Main body

      Tester Display

      Measurement Item/Range

      Normal Condition

      Diagnostic Note

      P-Door Lock Pos SW

      Front passenger side door lock position switch signal / ON or OFF

      ON: Front passenger side door unlocked

      OFF: Front passenger side door locked

      -

      OK

      On the intelligent tester screen, the display changes between ON and OFF as shown in the chart above.

    GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Passenger Door LOCK / UNLOCK Functions do not Operate)

  3. CHECK WAVE ENVIRONMENT

    1. Bring the electrical key transmitter approximately 0.3 m (0.984 ft.) from the door outside handle (for front passenger side) and perform a front passenger side door entry lock and unlock operation check.

      B455161E01
      Note:

      If the key is brought within 0.2 m (0.656 ft.) of the door handle, communication is not possible.

      Tip:
      • When the electrical key transmitter is brought near the front passenger side door outside handle, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.

      • If the operation check is normal, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.

      Table 2. Result

      Result

      Proceed to

      Operation check fails

      A

      Operation check is normal

      B

    AFFECTED BY WAVE INTERFERENCE

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

    U122398E02
    1. Disconnect the H51 ECU connector.

    2. Disconnect the J10*1 or K6*2 handle connector.

      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance

      for LHD

      Tester Connection

      Condition

      Specified Condition

      J10-3 (ANT2) - H51-6 (CG2B)

      Always

      Below 1 Ω

      J10-6 (ANT1) - H51-5 (CLG2)

      Always

      Below 1 Ω

      J10-2 (GND) - Body ground

      Always

      Below 1 Ω

      H51-6 (CG2B) - Body ground

      Always

      10 kΩ or higher

      H51-5 (CLG2) - Body ground

      Always

      10 kΩ or higher

      for RHD

      Tester Connection

      Condition

      Specified Condition

      K6-3 (ANT2) - H51-6 (CG2B)

      Always

      Below 1 Ω

      K6-6 (ANT1) - H51-5 (CLG2)

      Always

      Below 1 Ω

      K6-2 (GND) - Body ground

      Always

      Below 1 Ω

      H51-6 (CG2B) - Body ground

      Always

      10 kΩ or higher

      H51-5 (CLG2) - Body ground

      Always

      10 kΩ or higher

      Table 3. Text in Illustration

      *1

      for LHD

      *2

      for RHD

      *3

      Front view of wire harness connector

      (to Front Door Outside Handle Assembly [for Passenger Side])

      *4

      Front view of wire harness connector

      (to Certification ECU)

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  5. CHECK CERTIFICATION ECU

    1. U122404E02

      Disconnect the J10*1 or K6*2 handle connector.

      • *1: for LHD

      • *2: for RHD

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

      Standard Voltage

      for LHD

      Tester Connection

      Switch Condition

      Specified Condition

      J10-3 (ANT2) - J10-6 (ANT1)

      Engine switch off, all doors closed, all doors locked with wireless door lock control and key not in cabin

      No pulse generation → Pulse generation

      J10-5 (B) - Body ground

      Engine switch off → Engine switch on (IG)

      9 to 14 V → Below 2 V

      for RHD

      Tester Connection

      Switch Condition

      Specified Condition

      K6-3 (ANT2) - K6-6 (ANT1)

      Engine switch off, all doors closed, all doors locked with wireless door lock control and key not in cabin

      No pulse generation → Pulse generation

      K6-5 (B) - Body ground

      Engine switch off → Engine switch on (IG)

      9 to 14 V → Below 2 V

      Table 4. Text in Illustration

      *1

      for LHD

      *2

      for RHD

      *3

      Front view of wire harness connector

      (to Front Door Outside Handle Assembly [for Passenger Side])

    REPLACE CERTIFICATION ECU

  6. REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR PASSENGER SIDE)

    1. Replace the front door outside handle assembly (for passenger side) (Click here).

  7. CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (OPERATION)

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

      OK

      Entry functions operate normally.

    END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY IS DEFECTIVE)

    REPLACE CERTIFICATION ECU