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

DESCRIPTION

The door control receiver receives signals from the door control transmitter and sends these signals to the body ECU. The body ECU then controls all doors by sending lock/unlock signals to each door, and sends hazard flasher signals to the combination meter assembly.

WIRING DIAGRAM

B003PKVE05

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.

  • If the body ECU has been replaced, it is necessary to initialize the body ECU.

    Click here

  • As the door control battery is installed between the vehicle battery and body ECU, first perform the inspections to confirm that there are no malfunctions in the power source circuit for the body ECU before performing this troubleshooting procedure.*


    • *: w/ Door Control Battery

PROCEDURE


  1. CHECK POWER DOOR LOCK OPERATION


    1. Check the power door lock operation.

      Click here

      OK
      Locked doors unlock
      Result
      Proceed to
      OK
      NG

    NG

    GO TO POWER DOOR LOCK CONTROL SYSTEM Click here

    OK

  2. INSPECT UNLOCK WARNING SWITCH ASSEMBLY


    1. Remove the unlock warning switch assembly.

      Click here

    2. Inspect the unlock warning switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE UNLOCK WARNING SWITCH ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (UNLOCK WARNING SWITCH ASSEMBLY - BODY ECU AND BODY GROUND)


    1. Disconnect the G136 unlock warning switch assembly connector.

    2. Disconnect the G33 body ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G136-1 - G33-8 (KSW) Always Below 1 Ω
      G136-2 - Body ground Always Below 1 Ω
      G136-1 or G33-8 (KSW) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. SWITCH TO SELF-DIAGNOSTIC MODE


    1. Switch to self-diagnostic mode by operating the ignition key cylinder.


      1. Make sure the vehicle is in its initial condition. Then insert the key into the ignition key cylinder and remove it.

      2. Within 5 seconds of removing the key, insert the key into the ignition key cylinder (ignition switch off). Then turn the ignition switch to ON and off.

      3. Within 30 seconds of turning the ignition switch off, perform the following operation 9 times: turn the ignition switch to ON and off.

        CAUTION:

        If the system cannot enter self-diagnostic mode, the system returns to normal mode.

        Tech Tips


        • Turning the ignition switch to ON after the above operations have been completed ends self-diagnostic mode.

        • Do not lock or unlock doors during self-diagnostic mode.

      4. B003NWME58
        Interior Light Output
        *1 On
        *2 Off
        *3 T1: 0.25 seconds
        *4 T2: 0.5 seconds

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

      Result
      Proceed to
      NEXT

    NEXT

  5. CHECK BY SELF-DIAGNOSTIC MODE


    1. Inspect the diagnostic outputs when the door control transmitter switch is pressed. The diagnostic outputs can be checked by the flash patterns of the interior lights.

      B003L96E39
      Result
      Result Proceed to
      No diagnostic outputs A
      Unmatching recognition code is output B
      Normal wave (light flash pattern) is output C

    B

    CHECK REGISTER RECOGNITION CODE Click here

    C

    REPLACE BODY ECU for LHD: Click here
    REPLACE BODY ECU for RHD: Click here

    A

  6. CHECK 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.

      Result
      Result Proceed to
      Unmatching recognition code is not output A
      Unmatching recognition code is output B

    B

    INSPECT TRANSMITTER BATTERY (VOLTAGE) Click here

    A

  7. CHECK WAVE ENVIRONMENT


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

      Tech Tips


      • When the door control 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.

      Result
      Result Proceed to
      Wireless functions do not operate properly A
      Wireless functions operate properly B

    B

    END (AFFECTED BY WAVE INTERFERENCE)

    A

  8. CHECK DOOR CONTROL RECEIVER (+B, GND)


    1. B003QNVC03
      *a

      Front view of wire harness connector

      (to Door Control Receiver)

      Disconnect the door control receiver connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G129-1 (GND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G129-5 (+B) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. CHECK DOOR CONTROL RECEIVER (OUTPUT)


    1. B003QVIC03
      *a

      Component with harness connected

      (Door Control Receiver)

      Connect the door control receiver connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G129-2 (RDA) - Body ground Ignition switch off, all doors closed and door control transmitter switch not pressed 11 to 14 V
      Ignition switch off, all doors closed and door control transmitter switch pressed Pulse generation
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE DOOR CONTROL RECEIVER Click here

    OK

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


    1. Disconnect the G129 door control receiver connector.

    2. Disconnect the G33 body ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G129-2 (RDA) - G33-16 (RDA) Always Below 1 Ω
      G129-3 (PRG) - G33-9 (PRG) Always Below 1 Ω
      G129-2 (RDA) or G33-16 (RDA) - Body ground Always 10 kΩ or higher
      G129-3 (PRG) or G33-9 (PRG) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  11. REPLACE DOOR CONTROL RECEIVER


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

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  12. CHECK REGISTER RECOGNITION CODE


    1. Perform the registration procedure.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  13. CHECK DOOR CONTROL RECEIVER (OPERATION)


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

      OK
      Doors can be locked and unlocked by the door control transmitter.
      Result
      Proceed to
      OK
      NG

    OK

    END (DOOR CONTROL RECEIVER WAS DEFECTIVE)

    NG

    REPLACE BODY ECU for LHD: Click here
    REPLACE BODY ECU for RHD: Click here

  14. INSPECT TRANSMITTER BATTERY (VOLTAGE)


    1. Inspect the transmitter battery capacity.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE DOOR CONTROL TRANSMITTER

    NG

  15. REPLACE TRANSMITTER BATTERY


    1. Replace the transmitter battery.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  16. CHECK BY SELF-DIAGNOSTIC MODE


    1. Inspect the diagnostic outputs when the door control transmitter switch is pressed. The diagnostic outputs can be checked by the flash patterns of the interior lights.

      B003L96E27
      Result
      Result Proceed to
      Normal wave (light flash pattern) is output A
      Unmatching recognition code is output B
      No diagnostic outputs

    A

    END (TRANSMITTER BATTERY WAS DEFECTIVE)

    B

    REPLACE DOOR CONTROL TRANSMITTER

  17. CHECK 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.

      Click here

      OK
      Recognition code can be registered.
      Result
      Proceed to
      OK
      NG

    OK

    END (GO TO OPERATION CHECK) Click here

    NG

    REPLACE DOOR CONTROL TRANSMITTER Click here