Driver Side Door Entry Lock Function does not Operate [01/2017 - ]: 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 [01/2017 - ]

   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 [01/2017 - ] 

Result: 

OK 

See step  2

1. Turn the power switch off.
2. Open and close the driver door.
3. Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly and approximately 0.7 to 1 m (2.30 to 3.28 ft.) from the driver door.
4. Read the Data List according to the display on the Techstream.
5. Press the back end of the door outside handle sub-assembly (for front passenger door).

   HINT: 

   When checking the operation of the lock request detection switch again, make sure to perform the procedure from step (a).

   Body Electrical > Front Left Door > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Smart Lock Switch	Front door LH lock request detection switch signal	ON or OFF	ON: Back end of door outside handle sub-assembly LH pressed OFF: Back end of door outside handle sub-assembly LH not pressed	Use this Data List item to help determine if there is a lock switch malfunction when the entry lock function does not operate.

   Body Electrical > Front Left Door > Data List 

   Tester Display
   Smart Lock Switch

   OK

   The Techstream display changes correctly in response to the operation of the door outside handle sub-assembly (for driver door).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Back End

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [01/2017 - 05/2023]  , or refer to  REMOVAL [05/2023 - ] 

Result: 

NG 

See step  3

1. Disconnect the S8 front multiplex network door ECU (for driver door) connector.
2. Disconnect the W2 door outside handle sub-assembly (for driver door) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   S8-13 (LSW) - W2-1 (LSW)	Always	Below 1 Ω
   S8-10 (PS1G) - W2-4 (LSWG)	Always	Below 1 Ω
   S8-13 (LSW) or W2-1 (LSW) - Other terminals and body ground	Always	10 kΩ or higher
   S8-10 (PS1G) or W2-4 (LSWG) - Other terminals and 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. Remove the door outside handle sub-assembly (for driver door).

   Refer to DISASSEMBLY [01/2017 - 06/2019] , or refer to DISASSEMBLY [06/2019 - 04/2020] , or refer to DISASSEMBLY [04/2020 - 05/2023] , or refer to DISASSEMBLY [05/2023 - ]

2. Inspect the door outside handle sub-assembly (for driver door).

   Refer to INSPECTION [01/2017 - ]

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE FRONT MULTIPLEX NETWORK DOOR ECU (FOR DRIVER DOOR). Refer to  DISASSEMBLY [01/2017 - 06/2019]  , or refer to  DISASSEMBLY [06/2019 - 04/2020]  , or refer to  DISASSEMBLY [04/2020 - 05/2023]  , or refer to  DISASSEMBLY [05/2023 - ] 

Result: 

NG 

REPLACE DOOR OUTSIDE HANDLE SUB-ASSEMBLY (FOR DRIVER DOOR). Refer to  DISASSEMBLY [01/2017 - 06/2019]  , or refer to  DISASSEMBLY [06/2019 - 04/2020]  , or refer to  DISASSEMBLY [04/2020 - 05/2023]  , or refer to  DISASSEMBLY [05/2023 - ]