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

1. Check that the entry luggage compartment open function operates (Refer to OPERATION CHECK [09/2014 - ] ).
   RESULT
   
   

   Result	Proceed to
   Entry luggage compartment door open function operates	A
   Entry luggage compartment door open function does not operate	B

Result:  B

B 

GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table) 

(Refer to PROBLEM SYMPTOMS TABLE [09/2014 - ] )

Result:  A

A 

See step  2

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *a	Inspection Point

   NOTE:

   If the electrical key transmitter sub-assembly is brought within 0.2 m (0.656 ft.) of the No. 3 indoor electrical key antenna assembly (inside luggage compartment), communication is not possible.

   HINT: 

   • When the electrical key transmitter sub-assembly is brought near the No. 3 indoor electrical key antenna assembly (inside luggage compartment), 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.

   OK

   Entry functions operate normally.

Result:  OK

OK 

AFFECTED BY WAVE INTERFERENCE 

Result:  NG

NG 

See step  3

1. Check the following antennas in the key diagnostic mode (Refer to OPERATION CHECK [09/2014 - ] ).
2. Select either channel 1 or channel 2 and inspect the key diagnostic mode for each channel.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *a	Inspection Point

   1. When the electrical key transmitter sub-assembly is held at the same height as the rear bumper upper surface and aligned with the center of the rear of the vehicle, check that the wireless door lock buzzer sounds.

      HINT: 

      • Place the key in the luggage area.
      • If the buzzer sounds, it can be determined that the No. 3 indoor electrical key antenna assembly (inside luggage compartment) 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.

      OK

      Wireless door lock buzzer sounds.

Result:  OK

OK 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

(Refer to REMOVAL [09/2014 - ] )

Result:  NG

NG 

See step  4

1. Disconnect the N98 certification ECU (smart key ECU assembly) connector.
2. Disconnect the T37 No. 3 indoor electrical key antenna assembly (inside luggage compartment) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N98-4 (CLG7) - T37-1 (ANTE7)	Always	Below 1 Ω
   N98-3 (CG7B) -T37-3 (CLGB)	Always	Below 1 Ω
   N98-4 (CLG7) or T37-1 (ANTE7) - Body ground	Always	10 kΩ or higher
   N98-3 (CG7B) or T37-3 (CLGB) - Body ground	Always	10 kΩ or higher

Result:  NG

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  OK

OK 

See step  5

1. Connect the N98 certification ECU (smart key ECU assembly) connector.
2. Measure the voltage according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK

   Tester Connection	Switch Condition	Tool Setting	Specified Condition
   T37-1 (ANTE7) - T37-3 (CLGB)	Procedure: Power switch off Electrical key transmitter sub-assembly not inside vehicle All doors closed Driver door lock sensor not touched → touched	2 V/DIV., 500 ms/DIV.	Pulse generation (See waveform)

   TEXT IN ILLUSTRATION
   
   

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

Result:  NG

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

(Refer to REMOVAL [09/2014 - ] )

Result:  OK

OK 

See step  6

1. Replace the No. 3 indoor electrical key antenna assembly (inside luggage compartment) (Refer to REMOVAL [09/2014 - ] ).

Result:  NEXT

NEXT 

See step  7

1. Check that the entry luggage compartment lock-in prevention function operates normally (Refer to OPERATION CHECK [09/2014 - ] ).

   OK

   Entry luggage compartment lock-in prevention function operates normally.

Result:  OK

OK 

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

Result:  NG

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

(Refer to REMOVAL [09/2014 - ] )