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 [08/2012 - ] .

   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 [08/2012 - ] .
   SMART ACCESS
   
   

   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.

   OK

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

NG → See step   3 

OK → See step   6 

1. Disconnect the O1 front door outside handle assembly (for driver door) connector.
2. Disconnect the H1 certification ECU (smart key ECU assembly) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   O1-1 (TRG+) - H1-18 (TSW1)	Always	Below 1 Ω
   H1-15 (E) - Body ground	Always	Below 1 Ω
   O1-1 (TRG+) or H1-18 (TSW1) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Connect the O1 front door outside handle assembly (for driver door) connector.
   Fig 1: Identifying H1 Connector Terminals And Waveform

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *1	Waveform	-	-
   *a	Component with harness connected (Certification ECU (smart key ECU assembly))	*b	In actuality, sampling is being performed

2. Connect the H1 certification ECU (smart key ECU assembly) connector.
3. Using an oscilloscope, check the waveform.

   OK

   Tester Connection	Switch Condition	Tool Setting	Specified Condition
   H1-18 (TSW1) - H1-15 (E)	Procedure: Power switch off Key brought outside vehicle All doors closed Driver door lock sensor not touched → touched	2 V/DIV., 500 ms/DIV.	Pulse generation (See waveform)

NG → See step   7 

OK → See step   6