Driver Side Door Entry Lock Function does not Operate [10/2015 - ]: 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 [10/2015 - ]

   OK

   Door locks operate normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] 

Result: 

OK 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Smart Access / Data List.
5. Read the Data List according to the display on the Techstream.

   Body Electrical > Smart Access > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   D-Door Trigger Switch	Driver door touch sensor (lock sensor)	ON or OFF	ON: Driver door touch sensor (lock sensor) touched OFF: Driver door 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.

   Body Electrical > Smart Access > Data List 

   Tester Display
   D-Door Trigger Switch

   OK

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

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [10/2015 - 09/2017]  , or refer to  REMOVAL [09/2017 - ] 

Result: 

NG 

See step  3

1. Disconnect the O8 front door outside handle assembly LH connector.
2. Disconnect the A21 and K74 certification ECU (smart key ECU assembly) connectors.
3. Measure the resistance according to the value (s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   O8-1 (TRG+) - K74-20 (TSW1)	Always	Below 1 Ω
   A21-11 (E) - Body ground	Always	Below 1 Ω
   O8-1 (TRG+) or K74-20 (TSW1) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

1. Connect the O8 front door outside handle assembly LH connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component with harness connected (Certification ECU (Smart Key ECU Assembly))	*b	Waveform
   *c	In actuality, sampling is being performed	-	-

2. Connect the A21 and K74 certification ECU (smart key ECU assembly) connectors.
3. Using an oscilloscope, check the waveform.

   OK

   Tester Connection	Switch Condition	Tool Setting	Specified Condition
   K74-20 (TSW1) - A21-11 (E)	Procedure:  Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed Driver door lock sensor not touched → touched	2 V/DIV., 500 ms./DIV.	Pulse generation (See waveform)

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [10/2015 - 09/2017]  , or refer to  REMOVAL [09/2017 - ] 

Result: 

NG 

REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH. Refer to  DISASSEMBLY [10/2015 - 09/2017]  , or refer to  DISASSEMBLY [09/2017 - ]