Entry And Start System (For Entry Function) Rear Door Lh Entry Lock And Unlock Functions Do Not Operate

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK POWER DOOR LOCK CONTROL SYSTEM

CHECK FOR DTC

CHECK WAVE ENVIRONMENT

READ VALUE USING GTS (DR-DOOR TOUCH SENSOR, DR-DOOR TRIGGER SWITCH)

CHECK KEY DIAGNOSTIC MODE

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU [SMART KEY ECU ASSEMBLY] - REAR DOOR OUTSIDE HANDLE ASSEMBLY LH)

CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO DRIVER DOOR ELECTRICAL KEY ANTENNA)

CHECK ENTRY LOCK OPERATION

REPLACE REAR DOOR OUTSIDE HANDLE ASSEMBLY LH

CHECK ENTRY LOCK OPERATION

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

1. The entry and start system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the entry and start system (for Entry Function) after confirming that the communication systems are functioning properly (Click here).
   
2. When using the GTS with the engine switch off, connect the GTS to the DLC3 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 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.
   
3. Check that there are no electrical key transmitter sub-assemblies in the vehicle.
   
4. Before replacing the certification ECU (smart key ECU assembly), refer to entry and start system (for Entry Function) (Click here).
   
5. After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
   

1. When the door control switch on the multiplex network master switch assembly is operated, check that the doors unlock and lock according to the switch operation (Click here).
   

   OK:

   Door locks operate normally.
   

1. Check for DTCs (Click here).
   

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

1. Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the rear door outside handle assembly LH and perform an entry function check (Click here).
   

   Text in Illustration

   *a	Approximately 0.3 m (0.984 ft.)

   HINT:

   1. Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the rear door outside handle assembly LH.
      
   2. When the electrical key transmitter sub-assembly is brought near the rear door outside handle assembly LH, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
      
   3. If the inspection result is that the problem only occurs in certain locations or at certain 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.
      
   4. There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement.
      
   5. If a tool for checking radio waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference.
      
   6. When checking the operation of the entry lock function several times, it can be operated up to 2 times consecutively. To operate the function 3 times or more consecutively, the doors need to be unlocked once. However, this is only for the entry lock function, other door lock operations, such as a wireless door lock operation can be performed consecutively.
      

   Result

   Result	Proceed to
   Entry function does not operate normally	A
   Entry function operates normally	B

1. Connect the GTS to the DLC3.
   

2. Turn the engine switch on (IG).
   

3. Turn the GTS on.
   

4. Enter the following menus: Body Electrical / Entry&Start / Data List.
   

5. Read the Data List according to the display on the GTS.
   
   

   Entry&Start

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Dr-Door Touch Sensor	Rear door LH touch sensor (unlock sensor)*1 / ON or OFF	ON: Rear door LH touch sensor (unlock sensor) touched OFF: Rear door LH touch sensor (unlock sensor) not touched	Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate.
   Pr-Door Touch Sensor	Rear door LH touch sensor (unlock sensor)*2 / ON or OFF	ON: Rear door LH touch sensor (unlock sensor) touched OFF: Rear door LH touch sensor (lock sensor) not touched	Displays whether the lock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is a lock sensor malfunction when the entry lock function does not operate.
   Dr-Door Trigger Switch	Rear door LH touch sensor (lock sensor)*1 / ON or OFF	ON: Rear door LH touch sensor (lock sensor) touched OFF: Rear door LH touch sensor (lock sensor) not touched	Displays whether the lock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is a lock sensor malfunction when the entry lock function does not operate.
   Pr-Door Trigger Switch	Rear door LH touch sensor (lock sensor)*2 / ON or OFF	ON: Rear door LH touch sensor (lock sensor) touched OFF: Rear door LH touch sensor (lock sensor) not touched	Displays whether the lock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is a lock sensor malfunction when the entry lock function does not operate.

   1. *1: for RHD
      
   2. *2: for LHD
      

   HINT:

   When checking the operation of the entry lock function several times, it can be operated up to 2 times consecutively. To operate the function 3 times or more consecutively, the doors need to be unlocked once. However, this is only for the entry lock function, other door lock operations, such as a wireless door lock operation can be performed consecutively.

   OK:

   The GTS display changes correctly in response to the operation of the rear door outside handle assembly LH.
   

1. Check the following antenna in key diagnostic mode.
   

2. Select either channel 1 or channel 2 and perform key diagnostic mode inspection for each channel.
   

   
   
   

   1. Check the electrical key antenna (for rear door LH):
      

      Text in Illustration

      *a	0.7 to 1 m (2.30 to 3.28 ft.)

      When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the rear door outside handle assembly LH, check that the wireless buzzer sounds.
      

      HINT:

      1. Select either channel 1 or channel 2 and inspect key diagnostic mode for each channel.
         
      2. If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference.
         

      Result

      Result	Proceed to
      Wireless buzzer does not sound	A
      Wireless buzzer sounds	B

1. Disconnect the E129 certification ECU (smart key ECU assembly) connector.
   

2. Disconnect the z78 rear door outside handle assembly LH connector.
   

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

   Standard Resistance:

   for LHD:

   Tester Connection	Condition	Specified Condition
   E129-8 (CLG3) - z78-6 (ANT1)	Always	Below 1 Ω
   E129-7 (CG3B) - z78-4 (ANT2)	Always	Below 1 Ω
   E129-8 (CLG3) or z78-6 (ANT1) - Body ground	Always	10 kΩ or higher
   E129-7 (CG3B) or z78-4 (ANT2) - Body ground	Always	10 kΩ or higher

   for RHD:

   Tester Connection	Condition	Specified Condition
   E129-10 (CLG4) - z78-6 (ANT1)	Always	Below 1 Ω
   E129-9 (CG4B) - z78-4 (ANT2)	Always	Below 1 Ω
   E129-10 (CLG4) or z78-6 (ANT1) - Body ground	Always	10 kΩ or higher
   E129-9 (CG4B) or z78-4 (ANT2) - Body ground	Always	10 kΩ or higher

1. Connect the E129 certification ECU (smart key ECU assembly) connector.
   

2. Using an oscilloscope, check the waveform.
   
   

   OK:

   
   

   Tester Connection	Switch Condition	Tool Setting	Specified Condition
   z78-6 (ANT1) - z78-4 (ANT2)	Procedure: Engine switch off All doors closed Electrical key transmitter sub-assembly not inside vehicle All doors locked through wireless operation (electrical key transmitter sub-assembly brought outside detection area*)	5 V/DIV., 100 ms/DIV.	Pulse generation (See waveform 1)

   1. *: For details about the entry function detection area, refer to Operation Check (Click here).
      

1. Connect all connectors and check that the entry lock and unlock functions operate (Click here).
   

   Result

   Result	Proceed to
   Entry function does not operate normally	A
   Entry function operates normally	B

1. Replace the rear door outside handle assembly LH with a new one or the rear door outside handle assembly RH if it is functioning properly (Click here).
   

1. Check that the entry lock and unlock functions operate (Click here).
   

   Result

   Result	Proceed to
   Entry function operates normally	A
   Entry function does not operate normally	B