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

DTC Code DTC Name
Only Wireless Control Function is Inoperative

DESCRIPTION

The door control receiver receives signals from the door control transmitter assembly and sends these signals to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network 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

  1. w/o Tire Pressure Warning System

    B342256E03

  2. w/ Tire Pressure Warning System (for ECE-R64 Type)

    B342255E01

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, read the transmitter IDs (tire pressure warning system) stored in the old ECU using the GTS and write them down before removal.

  • It is necessary to perform initialization after registration of the transmitter IDs into the door control receiver*1 or tire pressure warning ECU and receiver*2 if the door control receiver*1 or tire pressure warning ECU and receiver*2 has been replaced.

    for Initialization:

    Click here

    for Registration:

    Click here

  • w/ Tire Pressure Warning ECU (ECE-R64 Type):

    First, confirm that there are no malfunctions in the tire pressure warning system. Refer to the How to Proceed with Troubleshooting procedure.

    Click here

  • When replacing the main body ECU (multiplex network body ECU), make sure to replace it with a new one.

  • *1: w/o Tire Pressure Warning System

  • *2: w/ Tire Pressure Warning System (for ECE-R64 Type)

PROCEDURE

  1. CHECK POWER DOOR LOCK OPERATION

    1. Check the power door lock operation.

      Click here

    Result

    Proceed to

    Locked doors unlock

    Locked doors do not unlock
    Locked doors do not unlock

    GO TO POWER DOOR LOCK CONTROL SYSTEM

    Click here

    Locked doors unlock

  2. CHECK KEY REMINDER WARNING SYSTEM

    1. Check that the key reminder warning buzzer operates properly.

      Click here

    Result

    Proceed to

    Key reminder warning buzzer operates properly

    Key reminder warning buzzer does not operates properly
    Key reminder warning buzzer does not operates properly

    GO TO KEY REMINDER WARNING SYSTEM

    Click here

    Key reminder warning buzzer operates properly

  3. CHECK DOOR CONTROL TRANSMITTER ASSEMBLY

    1. When a known good registered door control transmitter assembly is used, check that the wireless functions operate properly.

      Click here

    Result

    Result

    Proceed to

    Wireless door lock/unlock/back door open function operates properly with a known good door control transmitter assembly.

    A

    Wireless door lock/unlock/back door open function does not operate.

    B
    B

    CHECK WAVE ENVIRONMENTClick here

    A

  4. CHECK TRANSMITTER BATTERY (VOLTAGE)

    1. Remove the transmitter battery.

      Click here

    2. Inspect the transmitter battery capacity.

      Click here

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY

    NG

    REPLACE TRANSMITTER BATTERY

    Click here

  5. CHECK WAVE ENVIRONMENT

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

      Tip:

      • When the door control transmitter assembly 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

    Proceed to

    Wireless functions operate properly

    Wireless functions do not operate properly
    Wireless functions operate properly

    END (AFFECTED BY WAVE INTERFERENCE)

    Wireless functions do not operate properly

  6. SWITCH TO SELF-DIAGNOSTIC MODE

    1. Using GTS

      1. Connect the GTS to the DLC3.

      2. Turn the Ignition switch to ON.

      3. Enter the following menus: Body Electrical / Main Body / Utility / Wireless Diagnosis Mode.

        Body Electrical > Main Body > Utility

        Tester Display

        Wireless Door Lock Diagnosis Mode

      4. Proceed to the next step in accordance with the prompts on the GTS screen.

      5. B220865E36

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

    2. Not using GTS (w/ Manual Diagnosis Mode)

      1. Insert and remove the key into/from the ignition key cylinder one time (Insert → Remove → Insert → Remove) and then ignition switch turn ON to off within 5 seconds.

      2. Perform the following operations within 30 seconds.

        (1) Turn the ignition switch from ON to off at nine times.

      3. B220865E37

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

    Result

    Proceed to

    NEXT
    NEXT

  7. CHECK SELF DIAGNOSTIC MODE

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

      B163380E71

    Result

    Result

    Proceed to

    Normal wave (light flash pattern) is output (A).

    A

    Unmatching recognition code is output (B).

    B

    No diagnostic outputs (C).

    C
    A

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    for LHD:Click here

    for RHD:Click here

    C

    CHECK DOOR CONTROL RECEIVER (RESPONSE)Click here

    B

  8. 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

    Result

    Proceed to

    Recognition code can be registered

    Recognition code cannot be registered
    Recognition code can be registered

    END (GO TO OPERATION CHECK)

    Recognition code cannot be registered

    REPLACE DOOR CONTROL RECEIVERClick here

  9. CHECK DOOR CONTROL RECEIVER (RESPONSE)

    1. Prepare the door control transmitter assembly from another vehicle.

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

    3. Check that an unmatching recognition code is output.

    Result

    Proceed to

    Unmatching recognition code is output

    Unmatching recognition code is not output
    Unmatching recognition code is output

    REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY

    Unmatching recognition code is not output

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

    1. B281165C07

      *a

      Front view of wire harness connector

      (to Door Control Receiver)

      Disconnect the M10 door control receiver.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      M10-1 (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

      M10-5 (DATA) - Body ground

      Always

      11 to 14 V

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  11. CHECK DOOR CONTROL RECEIVER (OUTPUT)

    1. B281169C03

      *a

      Component with harness connected

      (Door Control Receiver)

      Connect the M10 door control receiver.

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      M10-2 (CSEL) - Body ground

      Ignition switch lock, all doors closed and door control transmitter assembly switch not pressed

      11 to 14 V

      Ignition switch lock, all doors closed and door control transmitter assembly switch pressed

      Pulse generation

      (0 to 12 V)

    Result

    Result

    Proceed to

    OK (w/o Tire Pressure Warning System)

    A

    OK (w/ Tire Pressure Warning System [for ECE-R64 Type])

    B

    NG

    C
    B

    CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - TIRE PRESSURE WARNING ECU AND RECEIVER)Click here

    C

    REPLACE DOOR CONTROL RECEIVER

    Click here

    A

  12. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] - DOOR CONTROL RECEIVER)

    1. Disconnect the G78 main body ECU (multiplex network body ECU) connector.

    2. Disconnect the M10 door control receiver connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      M10-2 (CSEL) - G78-16 (RDA)

      Always

      Below 1 Ω

      M10-3 (PRG) - G78-4 (PRG)

      Always

      Below 1 Ω

      M10-2 (CSEL) - Body ground

      Always

      10 kΩ or higher

      G78-16 (RDA) - Body ground

      Always

      10 kΩ or higher

      M10-3 (PRG) - Body ground

      Always

      10 kΩ or higher

      G78-4 (PRG) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  13. 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

  14. CHECK REGISTER RECOGNITION CODE

    1. Perform the Registration procedure.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  15. 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.

    Result

    Proceed to

    OK

    NG
    OK

    END (DOOR CONTROL RECEIVER WAS DEFECTIVE)

    NG

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    for LHD:Click here

    for RHD:Click here

  16. CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - TIRE PRESSURE WARNING ECU AND RECEIVER)

    1. Disconnect the M10 door control receiver connector.

    2. Disconnect the M30 tire pressure warning ECU and receiver connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      M10-2 (CSEL) - M30-10 (RDA3)

      Always

      Below 1 Ω

      M10-3 (PRG) - M30-9 (PRG3)

      Always

      Below 1 Ω

      M10-2 (CSEL) - Body ground

      Always

      10 kΩ or higher

      M30-10 (RDA3) - Body ground

      Always

      10 kΩ or higher

      M10-3 (PRG) - Body ground

      Always

      10 kΩ or higher

      M30-9 (PRG3) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  17. CHECK HARNESS AND CONNECTOR (TIRE PRESSURE WARNING ECU AND RECEIVER - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU])

    1. Disconnect the M30 tire pressure warning ECU and receiver connector.

    2. Disconnect the G78 main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      M30-4 (RDA2) - G78-16 (RDA)

      Always

      Below 1 Ω

      M30-5 (PRG2) - G78-4 (PRG)

      Always

      Below 1 Ω

      M30-4 (RDA2) - Body ground

      Always

      10 kΩ or higher

      G78-16 (RDA) - Body ground

      Always

      10 kΩ or higher

      M30-5 (PRG2) - Body ground

      Always

      10 kΩ or higher

      G78-4 (PRG) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  18. 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

  19. CHECK REGISTER RECOGNITION CODE

    1. Perform the Registration procedure.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  20. 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.

    Result

    Proceed to

    OK

    NG
    OK

    END (DOOR CONTROL RECEIVER WAS DEFECTIVE)

    NG

  21. REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER

    1. Temporarily replace the tire pressure warning ECU and receiver with a new or known good one.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  22. CHECK REGISTER RECOGNITION CODE

    1. Perform the Registration procedure.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  23. 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.

    Result

    Proceed to

    OK

    NG
    OK

    END (TIRE PRESSURE WARNING ECU AND RECEIVER WAS DEFECTIVE)

    NG

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    for LHD:Click here

    for RHD:Click here