WIRELESS DOOR LOCK CONTROL SYSTEM(w/o Entry and Start System) Only Wireless Control Function is Inoperative

DESCRIPTION

The door control receiver receives signals from the transmitter and sends these signals to the main body ECU. The main body ECU then controls all doors by sending lock/unlock signals to each door.

WIRING DIAGRAM

A01VFCPE03
w/o Tire Pressure Warning System
*a from Battery
*b ECU-B NO. 2
*c Door Control Receiver
*d Main Body ECU
A01VJQSE03

CAUTION / NOTICE / HINT

Note


  • Inspect the fuses for circuits related to this system before performing the following procedure.

  • When replacing or inspecting the door control receiver and wire harness, do not change the position or length of the wire harness. If the wire harness is too close to the door control receiver, wireless function performance may be affected Click here.

  • When replacing the door control receiver, refer to the REGISTRATION Click here

  • When replacing the tire pressure monitor receiver assembly, read the transmitter IDs (tire pressure warning system) stored in the old ECU using the intelligent tester and write them down before removal.*1

  • First, confirm that there are no malfunctions in the tire pressure warning system. Refer to the How to proceed with Troubleshooting procedure Click here.*1

  • It is necessary to perform initialization after registration of the transmitter IDs into the tire pressure monitor receiver assembly if the tire pressure monitor receiver assembly has been replaced.*1



  • *1: w/ Tire Pressure Warning System

PROCEDURE


  1. CHECK POWER DOOR LOCK OPERATION


    1. When the door control switch on the power window regulator 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. CHECK KEY REMINDER WARNING SYSTEM


    1. Check that the key reminder warning buzzer operates normally Click here.

      OK
      Key reminder warning buzzer operates normally.

    NG

    GO TO KEY REMINDER WARNING SYSTEM Click here

    OK

  3. SWITCH TO SELF DIAGNOSTIC MODE


    1. Switch to self-diagnostic mode.


      1. Connect the intelligent tester to the DLC3.

      2. Turn the ignition switch to ON.

      3. Turn the intelligent tester on.

      4. Enter following menus: Body / Main Body / Utility / Wireless Door Lock Diagnosis Mode

      5. Proceed to the next step in accordance with the prompts on the intelligent tester screen.

    2. A01VJCZE23
      Interior Light Output
      *1 T1: 0.25 seconds
      *2 T2: 0.5 seconds
      *3 ON
      *4 OFF

      Check that the system has switched to self-diagnostic mode by checking the map light assembly flash pattern.

      OK
      Flash pattern is same as illustration on left.

    NEXT

  4. CHECK BY SELF DIAGNOSTIC MODE


    1. Inspect the diagnosis outputs when the door control transmitter switch is held down. The diagnosis outputs can be checked by the flash patterns of the map light assembly.

      A01VFXNE07
      Result
      Result Proceed to
      Normal waves (light flash patterns) for lock and unlock switches are output A
      Unmatching recognition code is output B
      No diagnosis outputs C

    A

    REPLACE MAIN BODY ECU Click here

    C

    CHECK RESPONSE OF DOOR CONTROL RECEIVER (RESPONSE) Click here

    B

  5. REGISTER RECOGNITION CODE


    1. Check that the system can be switched to rewrite mode or add mode, and that a recognition code can be registered.

      OK
      Recognition code can be registered.

    OK

    END

    NG

    REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY

  6. CHECK RESPONSE OF DOOR CONTROL RECEIVER (RESPONSE)


    1. Prepare the door control transmitter from another vehicle.

    2. Press and hold down the door control transmitter switch.

    3. Check that an unmatching recognition code is output.

      OK
      Unmatching recognition code is output.

    NG

    CHECK WAVE ENVIRONMENT Click here

    OK

  7. INSPECT TRANSMITTER BATTERY (VOLTAGE)

    A01VFDBE01
    Text in Illustration
    *a Lead Wire

    1. Remove the battery from the door control transmitter assembly that does not operate. Attach a lead wire (0.6 mm (0.0236 in.)) or less in diameter including wire sheath) with tape or equivalent to the negative terminal Click here.

      Note

      Do not wrap the lead wire around the terminal, wedge it between terminals, or solder it. The terminal may be deformed or damaged, and the battery will not be able to be installed correctly.

    2. Carefully pull the lead wire out from the position shown in the illustration and install the previously removed transmitter battery.

      Note

      When replacing the transmitter battery, before starting work, remove any static electricity that has built up by touching, for example, the vehicle to prevent the door control transmitter assembly from being damaged.

    3. A01VGBLE01
      Text in Illustration
      *a GND

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

      Tech Tips

      When measuring the battery voltage, press one of the transmitter switches.

      Standard Voltage
      Tester Connection Condition Specified Condition
      Battery positive (+) - Battery negative (-) Ignition switch off, all doors closed and lock or unlock switch pushed 2.0 to 3.2 V

    OK

    REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY

    NG

  8. REPLACE TRANSMITTER BATTERY


    1. Replace the transmitter battery Click here.


    NEXT

  9. CHECK BY SELF DIAGNOSTIC MODE


    1. Inspect the diagnosis outputs when the door control transmitter switch is held down. The diagnosis outputs can be checked by the flash patterns of the No. 1 room light assembly.

      A01VFXNE07
      Result
      Result Proceed to
      Normal waves (light flash patterns) for LOCK and UNLOCK switches are output A
      Unmatching recognition code is output B
      No diagnosis outputs

    A

    END (TRANSMITTER BATTERY IS DEFECTIVE)

    B

    REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY

  10. CHECK WAVE ENVIRONMENT


    1. Bring the transmitter near the door control receiver, and perform a wireless operation check.

      OK
      Wireless functions operate normally.

      Tech Tips


      • When the transmitter is brought near the door control receiver, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.

      • If the inspection result is that the problem only occurs in certain locations or times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.


    OK

    END (AFFECTED BY WAVE INTERFERENCE)

    NG

  11. INSPECT DOOR CONTROL RECEIVER (POWER SOURCE, GROUND)


    1. A01VKJPE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Door Control Receiver)

      Disconnect the door control receiver connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K12-1 (GND) - Body ground Always Below 1 Ω
      Standard Voltage
      Tester Connection Condition Specified Condition
      K12-5 (+B) - Body ground Always 11 to 14 V

    3. Reconnect the door control receiver connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  12. INSPECT DOOR CONTROL RECEIVER (OUTPUT)

    A01VG2BE01
    Text in Illustration
    *a

    Component with harness connected

    (Door Control Receiver)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      K12-2 (RDA) - Body ground Ignition switch off, all doors closed and door control transmitter switch off 11 to 14 V
      Ignition switch off, all doors closed and door control transmitter switch on pulse generation
      Result
      Result Proceed to
      OK (w/o Tire Pressure Warning System) A
      OK (w/ Tire Pressure Warning System) B
      NG (for 5 Door) C
      NG (for 3 Door) D

    B

    CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER -TIRE PRESSURE MONITOR RECEIVER ASSEMBLY) Click here

    C

    REPLACE DOOR CONTROL RECEIVER Click here

    D

    REPLACE DOOR CONTROL RECEIVER Click here

    A

  13. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - DOOR CONTROL RECEIVER)


    1. Disconnect the F76 main body ECU connector.

    2. Disconnect the K12 door control receiver connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F76-26 (RDA) - K12-2 (RDA) Always Below 1 Ω
      F76-26 (RDA) or K12-2 (RDA) - Body ground Always 10 kΩ or higher
      F76-25 (PRG) - K12-3 (PRG) Always Below 1 Ω
      F76-25 (PRG) or K12-3 (PRG) - Body ground Always 10 kΩ or higher

    4. Reconnect the main body ECU connector and door control receiver connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  14. REPLACE DOOR CONTROL RECEIVER


    1. Temporarily replace the door control receiver with a new or normally functioning one.

      Tech Tips



    NEXT

  15. REGISTER RECOGNITION CODE


    1. Perform the Registration procedures Click here.


    NEXT

  16. CHECK DOOR CONTROL RECEIVER (OPERATION)


    1. Check that the doors can be locked and unlocked by using the transmitter LOCK and UNLOCK switches.

      OK
      Doors can be locked and unlocked with transmitter.

    OK

    END (DOOR CONTROL RECEIVER IS DEFECTIVE)

    NG

    REPLACE MAIN BODY ECU Click here

  17. CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER -TIRE PRESSURE MONITOR RECEIVER ASSEMBLY)


    1. Disconnect the K12 door control receiver connector.

    2. Disconnect the K52 tire pressure monitor receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K12-2 (RDA) - K52-10 (RDA3) Always Below 1 Ω
      K12-3 (PRG) - K52-9 (PRG3) Always Below 1 Ω
      K12-2 (RDA) or K52-10 (RDA3) - Body ground Always 10 kΩ or higher
      K12-3 (PRG) or K52-9 (PRG3) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  18. CHECK HARNESS AND CONNECTOR (TIRE PRESSURE MONITOR RECEIVER ASSEMBLY - MAIN BODY ECU)


    1. Disconnect the K12 door control receiver connector.

    2. Disconnect the F76 main body ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K52-4 (RDA2) - F76-26 (RDA) Always Below 1 Ω
      K52-5 (PRG2) - F76-25 (PRG) Always Below 1 Ω
      K52-4 (RDA2) or F76-26 (RDA) - Body ground Always 10 kΩ or higher
      K52-5 (PRG2) or F76-25 (PRG) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  19. REPLACE DOOR CONTROL RECEIVER


    1. Temporarily replace the door control receiver with a new or known good one.



    NEXT

  20. CHECK REGISTER RECOGNITION CODE


    1. Perform the Registration procedure Click here.


    NEXT

  21. CHECK DOOR CONTROL RECEIVER (OPERATION)


    1. Check that the doors can be locked and unlocked by the door control transmitter assembly lock and unlock switches.

      OK
      Doors can be locked and unlocked by the door control transmitter assembly.

    OK

    END (DOOR CONTROL RECEIVER WAS DEFECTIVE)

    NG

  22. REPLACE TIRE PRESSURE MONITOR RECEIVER ASSEMBLY


    1. Temporarily replace the tire pressure monitor receiver assembly with a new or known good one Click here.


    NEXT

  23. CHECK REGISTER RECOGNITION CODE


    1. Perform the Registration procedure Click here.


    NEXT

  24. CHECK DOOR CONTROL RECEIVER (OPERATION)


    1. Check that the doors can be locked and unlocked by the door control transmitter assembly lock and unlock switches.

      OK
      Doors can be locked and unlocked by the door control transmitter assembly.

    OK

    END (TIRE PRESSURE MONITOR RECEIVER ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE MAIN BODY ECU Click here