Driver Side Door Entry Lock Function does not Operate: 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 .

   OK

   Door locks operate normally.

NG → See step   5 

OK: Go to next step 

1. Using the Techstream, read the Data List. Refer to DATA LIST / ACTIVE TEST .
   SMART KEY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D-Door Trigger Switch	Driver side door lock sensor / ON or OFF	ON: Driver side door lock sensor touched OFF: Driver side door lock sensor not touched	-

   OK

   "ON" (lock sensor is touched) and "OFF" (lock sensor is not touched) appear on the screen.

NG → See step   3 

OK → See step   6 

1. Disconnect the M1 handle connector.
2. Disconnect the F79 ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   M1-1 (TRG+) - F79-18 (TSW1)	Always	Below 1 Ω
   F79-18 (TSW1) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Measure the voltage according to the value(s) in the table below.
   Fig 1: Identifying F79 Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *a

   Component with harness connected (Certification ECU)

   -

   -

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   F79-18 (TSW1) - F79-15 (E)	Engine switch off, all doors closed and lock sensor (for driver side) off → on	Pulse generation → Below 2 V

NG → See step   7 

OK → See step   6