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 (network gateway ECU). The main body ECU (network gateway ECU) then controls all doors by sending lock/unlock signals to each door.

WIRING DIAGRAM

A004ITZE15
*a to Main Fuse
*b Door Control Receiver
*c Main Body ECU (Network Gateway ECU)

CAUTION / NOTICE / HINT

Note

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

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
    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
    OK
  3. SWITCH TO SELF DIAGNOSTIC MODE


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


      1. Insert the key into the ignition key cylinder and remove it.

      2. Within 5 seconds after the key is removed, insert it into the ignition key cylinder and then turn the ignition switch to ON then off once. (End in off)

      3. Within 30 seconds after turning the ignition switch off, perform the following 9 times: Turn the ignition switch to ON then off. (End in off)

        Note

        If the system fails to enter self-diagnostic mode, the system will return to normal mode.

        Tech Tips

        Turning the ignition switch to ON after the procedure above has been completed will end the self-diagnostic mode.

    2. A004H0UE09
      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 output pattern.

    3. A004H0UE08
      Wireless Door Lock Buzzer Output
      *1 ON
      *2 OFF
      *3 T1: 0.125 seconds
      *4 T2: 0.5 seconds

      Check that the system has switched to self-diagnostic mode by checking the wireless door lock buzzer output pattern (w/ Wireless Door Lock Buzzer Control Function).

      OK
      Flash pattern is same as illustration on left.

    NEXT
  4. CHECK BY SELF DIAGNOSTIC MODE


    1. Check the diagnostic outputs when the door control transmitter module set sub-assembly switch is held down. The diagnostic outputs can be checked by the interior light and wireless door lock buzzer patterns.

      A004JL4E01
      Result
      Result Proceed to
      Normal wave (light flash pattern and buzzer pattern) is output. A
      Unmatching recognition code is output. B
      No diagnosis outputs C

    A
    C
    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
    NG
  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
    OK
  7. INSPECT TRANSMITTER BATTERY (VOLTAGE)

    A004I99E07
    Text in Illustration
    *1 Lead Wire

    1. Remove the battery from the door control transmitter module 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 module set from being damaged.

    3. A004ISOE01
      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 Switch Condition Specified Condition
      Battery positive (+) - Battery negative (-) Ignition switch off, all doors closed and lock or unlock switch pushed 2.5 to 3.2 V

    OK
    NG
  8. REPLACE TRANSMITTER BATTERY


    1. Replace the transmitter battery Click here.


    NEXT
  9. CHECK BY SELF DIAGNOSTIC MODE


    1. Inspect the diagnostic outputs when the door control transmitter module set sub-assembly switch is held down. The diagnostic outputs can be checked by the flash patterns of the interior lights and the buzzer patterns of the wireless door lock buzzer.

      A004JL4E01
      Result
      Result Proceed to
      Normal wave (light flash pattern and buzzer pattern) is output. A
      Unmatching recognition code is output B
      No diagnosis outputs

    A
    B
  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.


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


    1. Disconnect the H27 door control receiver connector.

    2. A004KFME01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Door Control Receiver)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      H27-5 (+B) - Body ground Always 11 to 14 V
      Standard Resistance
      Tester Connection Condition Specified Condition
      H27-1 (GND) - Body ground Always Below 1 Ω

    NG
    OK
  12. INSPECT DOOR CONTROL RECEIVER (OUTPUT)


    1. Reconnect the H27 door control receiver connector.

    2. A004IV4E01
      Text in Illustration
      *a

      Component with harness connected

      (Door Control Receiver)

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

      Standard Voltage
      w/o Tire Pressure Warning System
      Tester Connection Switch Condition Specified Condition
      H27-2 (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

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


    1. Disconnect the D6 main body ECU (network gateway ECU) connector.

    2. Disconnect the H27 door control receiver connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D6-7 (RDA) - H27-2 (RDA) Always Below 1 Ω
      D6-7 (RDA) or H27-2 (RDA) - Body ground Always 10 kΩ or higher
      D6-6 (PRG) - H27-3 (PRG) Always Below 1 Ω
      D6-6 (PRG) or H27-3 (PRG) - Body ground Always 10 kΩ or higher

    NG
    OK
  14. REPLACE DOOR CONTROL RECEIVER


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


    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
    NG