Rear Door RH Entry Lock and Unlock Functions do not Operate [11/2021 - ]: Procedure

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.

   Refer to OPERATION CHECK [11/2021 - ]

   OK

   Door locks operate normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO E-LATCH SYSTEM 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]

Result: 

OK 

See step  2

1. Check the operation of the entry lock and unlock functions.
   1. Check that the entry unlock function.
      1. Turn the ignition switch off.
      2. Open and close the rear door RH.
      3. With the electrical key transmitter sub-assembly outside of the vehicle, press the lock switch of the electrical key transmitter sub-assembly to lock all of the doors.
      4. Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly and approximately 0.3 m (0.984 ft.) from the rear door RH.
      5. Check that the LED of the electrical key transmitter sub-assembly blinks.
      6. Touch the unlock sensor on the backside of the rear door outside handle assembly (for front passenger side) for 2 seconds or more.*
      1. *: Perform this step 3 seconds or more after performing step (3).

      HINT: 

      When checking the operation of the unlock sensor again, make sure to perform the procedure from step (1).

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      *a	Unlock Sensor (Backside)

      The illustrations shown are examples only.

   2. Check that the entry lock function.
      1. Turn the ignition switch off.
      2. Open and close the rear door RH.
      3. Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly and approximately 0.3 m (0.984 ft.) from the rear door RH.
      4. Touch the lock sensor of the rear door outside handle assembly (groove on the rear door outside handle) with 2 or more fingers for 2 seconds or more.

         HINT: 

         • If the door does not lock even when touching the lock sensor for 2 seconds or more, touch it with your palm.
         • When checking the operation of the lock sensor again, make sure to perform the procedure from step (1).

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      *a	Lock Sensor

      The illustrations shown are examples only.

   Result

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

Result: 

B 

GO TO CHECK FOR INTERMITTENT PROBLEMS (VEHICLE CONTROL HISTORY (ROB)) 

Refer to CHECK FOR INTERMITTENT PROBLEMS [11/2021 - ]

Result: 

A 

See step  3

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

   Refer to OPERATION CHECK [11/2021 - ]

   HINT: 

   • 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 (for front passenger side).
   • When the electrical key transmitter sub-assembly is brought near the rear door outside handle assembly (for front passenger side), 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 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.
   • 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.
   • 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.
   • 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.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Electrical Key Transmitter Sub-assembly
   *a	Approximately 0.3 m (0.984 ft.)

   The illustrations shown are examples only.

   Result

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

Result: 

B 

AFFECTED BY WAVE INTERFERENCE 

Result: 

A 

See step  4

1. Open and close the rear door RH.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Unlock Sensor (Backside)

   The illustrations shown are examples only.

2. With the electrical key transmitter sub-assembly outside of the vehicle, press the lock switch of the electrical key transmitter sub-assembly to lock all of the doors.
3. Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly and approximately 0.3 m (0.984 ft.) from the rear door RH.
4. Check that the LED of the electrical key transmitter sub-assembly blinks.
5. Read the Data List according to the display on the GTS.
6. Touch the unlock sensor on the backside of the rear door outside handle assembly (for front passenger side) for 2 seconds or more.*
   1. *: Perform this step 3 seconds or more after performing step (b).

   HINT: 

   When checking the operation of the unlock sensor again, make sure to perform the procedure from step (a).

   Body Electrical > Smart Access > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Rear Passenger Side Unlock Sensor	Rear door RH touch sensor (unlock sensor)	OFF or ON	OFF: Rear door RH touch sensor (unlock sensor) not touched ON: Rear door RH touch sensor (unlock sensor) 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.

   Body Electrical > Smart Access > Data List 

   Tester Display
   Rear Passenger Side Unlock Sensor

   OK

   The GTS display changes correctly in response to the operation of the rear door outside handle assembly (for front passenger side).

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  6

Result: 

OK 

See step  5

1. Open and close the rear door RH.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Lock Sensor

   The illustrations shown are examples only.

2. Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly and approximately 0.3 m (0.984 ft.) from the rear door RH.
3. Read the Data List according to the display on the GTS.
4. Touch the lock sensor of the rear door outside handle assembly (groove on the rear door outside handle) with 2 or more fingers for 2 seconds or more.

   HINT: 

   • If the door does not lock even when touching the lock sensor for 2 seconds or more, touch it with your palm.
   • When checking the operation of the lock sensor again, make sure to perform the procedure from step (a).
   • 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.

   Body Electrical > Smart Access > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Rear Passenger Side Lock Sensor	Rear door RH touch sensor (lock sensor)	OFF or ON	OFF: Rear door RH touch sensor (lock sensor) not touched ON: Rear door RH touch sensor (lock sensor) 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.

   Body Electrical > Smart Access > Data List 

   Tester Display
   Rear Passenger Side Lock Sensor

   Result

   Result	Proceed to
   The GTS display does not change correctly in response to the operation of the rear door outside handle assembly (for front passenger side).	A
   The GTS display changes correctly in response to the operation of the rear door outside handle assembly (for front passenger side).	B

Result: 

B 

See step  10

Result: 

A 

See step  6

1. Disconnect the G12 certification ECU (smart key ECU assembly) connector.
2. Disconnect the F8 rear door outside handle assembly (for front passenger side) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G12-14 (CLG4) - F8-5 (ANT1)	Always	Below 1 Ω
   G12-13 (CG4B) - F8-2 (ANT2)	Always	Below 1 Ω
   G12-14 (CLG4) or F8-5 (ANT1) - Other terminals and body ground	Always	10 kΩ or higher
   G12-13 (CG4B) or F8-2 (ANT2) - Other terminals and body ground	Always	10 kΩ or higher

4. Reconnect the G12 certification ECU (smart key ECU assembly) connector.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  7

1. Using an oscilloscope, check the waveform.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Rear Door Outside Handle Assembly (for Front Passenger Side))
   *b	Waveform 1

   OK

   Tester Connection	Condition	Tool Setting	Specified Condition
   F8-5 (ANT1) - F8-2 (ANT2)	Procedure: Ignition 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., 500 ms./DIV.	Pulse generation (See waveform 1)

   *: For details about the entry function detection area, refer to Operation Check.

   Refer to OPERATION CHECK [11/2021 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

Refer to REMOVAL [11/2021 - ]

Result: 

OK 

See step  8

1. Replace the rear door outside handle assembly (for front passenger side) with a new one or rear door outside handle assembly (for driver side) if it is functioning properly.

   Refer to DISASSEMBLY [11/2021 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  9

1. Check that the function operates normally.

   Refer to OPERATION CHECK [11/2021 - ]

   Result

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

Result: 

A 

END (REAR DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER SIDE) WAS DEFECTIVE) 

Result: 

B 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

Refer to REMOVAL [11/2021 - ]

1. Check the following antenna in key diagnostic mode.

   Body Electrical > Smart Access > Utility 

   Tester Display
   Communication Check (Key Diag 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 RH):

      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 (for front passenger side), check that the wireless buzzer sounds.

      HINT: 

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

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      *1	Electrical Key Transmitter Sub-assembly
      *a	0.7 to 1 m (2.30 to 3.28 ft.)

      The illustrations shown are examples only.

   Result

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

Result: 

B 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

Refer to REMOVAL [11/2021 - ]

Result: 

A 

See step  11

1. Disconnect the G12 certification ECU (smart key ECU assembly) connector.
2. Disconnect the F8 rear door outside handle assembly (for front passenger side) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G12-14 (CLG4) - F8-5 (ANT1)	Always	Below 1 Ω
   G12-13 (CG4B) - F8-2 (ANT2)	Always	Below 1 Ω
   G12-14 (CLG4) or F8-5 (ANT1) - Other terminals and body ground	Always	10 kΩ or higher
   G12-13 (CG4B) or F8-2 (ANT2) - Other terminals and body ground	Always	10 kΩ or higher

4. Reconnect the G12 certification ECU (smart key ECU assembly) connector.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  12

1. Using an oscilloscope, check the waveform.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Rear Door Outside Handle Assembly (for Front Passenger Side))
   *b	Waveform 1

   OK

   Tester Connection	Condition	Tool Setting	Specified Condition
   F8-5 (ANT1) - F8-2 (ANT2)	Procedure: Ignition 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., 500 ms./DIV.	Pulse generation (See waveform 1)

   *: For details about the entry function detection area, refer to Operation Check.

   Refer to OPERATION CHECK [11/2021 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

Refer to REMOVAL [11/2021 - ]

Result: 

OK 

See step  13

1. Connect all connectors and check that the function operates normally.

   Refer to OPERATION CHECK [11/2021 - ]

   Result

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

Result: 

A 

REPLACE REAR DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER SIDE) 

Refer to DISASSEMBLY [11/2021 - ]

Result: 

B 

END (CONNECTOR WAS NOT CONNECTED SECURELY)