SMART ENTRY AND START SYSTEM (for Entry Function) Driver Side Door Entry Unlock Function does not Operate

DESCRIPTION

If the entry unlock function does not operate for the driver door only, but the entry lock function operates, the request code is being transmitted properly from the driver door. In this case, there may be a problem related to the driver door lock position switch system.

WIRING DIAGRAM

B007QNQE03

INSPECTION PROCEDURE

Note


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

  • When using the GTS with the vehicle engine switch off, connect the GTS to the vehicle and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select the Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN).

    While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

  • Check that there are no electrical key transmitter sub-assemblies in the vehicle.

  • Before performing the inspection, check that DTC B1242 (wireless door lock control) or B27B0 is not output.

  • Before replacing the certification ECU (smart key ECU assembly), refer to the smart entry and start system (for Entry Function) precaution Click here.

  • After repair, confirm that no DTCs are output by performing the "DTC Output Confirmation Operation".

PROCEDURE


  1. CHECK POWER DOOR LOCK CONTROL SYSTEM


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

      OK
      Door locks operate normally.

    NG

    GO TO POWER DOOR LOCK CONTROL SYSTEM Click here

    OK

  2. INSPECT FRONT DOOR LOCK ASSEMBLY RH (LOCK POSITION SWITCH)


    1. Remove the front door lock assembly RH Click here.

    2. Inspect the front door lock assembly RH Click here.


    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY RH Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - FRONT DOOR LOCK ASSEMBLY RH AND BODY GROUND)


    1. Disconnect the H7 instrument panel junction block assembly (body computer) connector.

    2. Disconnect the K1 front door lock assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H7-4 (LSWD) - K1-7 (LSSR) Always Below 1 Ω
      K1-8 (E) - Body ground Always Below 1 Ω
      H7-4 (LSWD) or K1-7 (LSSR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (BODY COMPUTER)


    1. Replace the instrument panel junction block assembly (body computer) with a new or known good one.


    NEXT

  5. CHECK ENTRY DOOR LOCK OPERATION


    1. Check the entry lock/unlock operation.

      OK
      Entry unlock operates normally.

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

    END (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY [BODY COMPUTER] WAS DEFECTIVE)