Key Luggage Compartment Lock-in Prevention Function does not Operate [09/2014 - ]: Procedure

1. Connect all connectors and check that the entry luggage compartment open function operates.

   Refer to OPERATION CHECK [09/2014 - 01/2023] , or refer to OPERATION CHECK [01/2023 - ]

   Result

   Result	Proceed to
   Luggage open function operates normally	A
   Luggage open function does not operate normally	B

Result: 

B 

GO TO OTHER PROBLEM (Proceed to Luggage Compartment Door Entry Unlock Function does not Operate when Key is Outside Luggage Compartment). Refer to  Luggage Compartment Door Entry Unlock Function does not Operate when Key is Outside Luggage Compartment [09/2014 - ]  

Result: 

A 

See step  2

1. Bring the electrical key transmitter sub-assembly near the No. 3 indoor electrical key antenna assembly (inside luggage), and check that the entry luggage compartment lock-in prevention function operates.
   NOTE:

   In order to prevent the electrical key transmitter sub-assembly from being locked inside the vehicle, perform this inspection with the window of a door open.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Inspection Point

   HINT: 

   • Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the No. 3 indoor electrical key antenna assembly (inside luggage).
   • When the electrical key transmitter sub-assembly is brought near the No. 3 indoor electrical key antenna assembly (inside luggage), the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
   • If the operation check is normal, 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.

   Result

   Result	Proceed to
   Entry functions does not operate normally	A
   Entry functions operate normally	B

Result: 

B 

AFFECTED BY WAVE INTERFERENCE 

Result: 

A 

See step  3

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 inspect key diagnostic mode for each channel.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Inspection Point

   1. Check the No. 3 indoor electrical key antenna assembly (inside luggage):

      When the electrical key transmitter sub-assembly is at either inspection point, check that the wireless buzzer sounds.

      HINT: 

      • If the buzzer sounds, it can be determined that the No. 3 indoor electrical key antenna assembly (inside luggage) is operating normally.
      • 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

Result: 

B 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [09/2014 - ] 

Result: 

A 

See step  4

1. Disconnect the O5 certification ECU (smart key ECU assembly) connector.
2. Disconnect the U3 No. 3 indoor electrical key antenna assembly (inside luggage) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   O5-4 (CLG7) - U3-1 (ANT7)	Always	Below 1 Ω
   O5-3 (CG7B) - U3-3 (CLGB)	Always	Below 1 Ω
   O5-4 (CLG7) or U3-1 (ANT7) - Body ground	Always	10 kΩ or higher
   O5-3 (CG7B) or U3-3 (CLGB) - Body ground	Always	10 kΩ or higher

4. Reconnect the O5 certification ECU (smart key ECU assembly) connector.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

1. Using an oscilloscope, check the wave form.

   OK

   Tester Connection	Condition	Tool Setting	Specified Condition
   U3-1 (ANT7) - U3-3 (CLGB)	Procedure: Door is closed Engine switch off Electrical key transmitter sub-assembly not inside vehicle Driver door lock sensor touched	2 V/DIV., 500 ms/DIV.	Pulse generation (See waveform 1)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to No. 3 Indoor Electrical Key Antenna Assembly (Inside Luggage))
   *b	Waveform 1
   *c	Driver door lock sensor not touched
   *d	Driver door lock sensor touched

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [09/2014 - ] 

Result: 

OK 

See step  6

1. Replace the No. 3 indoor electrical key antenna assembly (inside luggage).

   Refer to REMOVAL [09/2014 - 03/2019] , or refer to REMOVAL [03/2019 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  7

1. Check that the entry luggage compartment lock-in prevention function operates normally.

   Refer to OPERATION CHECK [09/2014 - 01/2023] , or refer to OPERATION CHECK [01/2023 - ]

   OK

   Entry luggage compartment lock-in prevention function operates normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (NO. 3 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (INSIDE LUGGAGE) WAS DEFECTIVE) 

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [09/2014 - ]