Driver Side Door Entry Unlock Function does not Operate [08/2015 - 08/2019]: Procedure

1. When the door control switch on the multiplex network master switch assembly on the driver side door is operated, check that the doors unlock and lock according to the switch operation (Refer to OPERATION CHECK [08/2015 - 08/2019] ).

   OK

   Door locks operate normally.

Result: 

NG 

Go to POWER DOOR LOCK CONTROL SYSTEM 

(Refer to PROBLEM SYMPTOMS TABLE [08/2015 - 08/2019] )

Result: 

OK 

See step  2

1. When the door control switch on the multiplex network master switch assembly on the driver side door is operated, check that the Data List using the Techstream (Refer to DATA LIST / ACTIVE TEST [08/2015 - 08/2019] ).
   MAIN BODY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   FL Door Lock Pos	Front LH side door lock / UNLOCK or LOCK	UNLOCK: Front LH side door unlocked LOCK: Front LH side door locked	-

   OK

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

Result: 

NG 

Go to POWER DOOR LOCK CONTROL SYSTEM 

(Refer to PROBLEM SYMPTOMS TABLE [08/2015 - 08/2019] )

Result: 

OK 

See step  3

1. Using the Techstream, read the Data List (Refer to DATA LIST / ACTIVE TEST [08/2015 - 08/2019] ).
   SMART ACCESS
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D-Door Touch Sensor	Front door outside handle assembly LH (unlock sensor) / ON or OFF	ON: Front door outside handle assembly LH (unlock sensor) touched OFF: Front door outside handle assembly LH (unlock sensor) not touched	Displays whether the unlock 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 an unlock sensor malfunction when the entry unlock function does not operate.

   OK

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

Result: 

OK 

REPLACE CERTIFICATION ECU 

(Refer to REMOVAL [08/2015 - 08/2019] )

Result: 

NG 

See step  4

1. Disconnect the O1 front door outside handle assembly LH connector.
2. Disconnect the G26 certification ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   O1-4 (SENS) - G26-20 (SEN1)	Always	Below 1 Ω
   G26-15 (E) - Body ground	Always	Below 1 Ω
   O1-4 (SENS) or G26-20 (SEN1) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

1. Connect the O1 front door outside handle assembly LH connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

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

2. Connect the G26 certification ECU connector.
3. Using an oscilloscope, check the waveform.

   OK

   Tester Connection	Switch Condition	Tool Setting	Specified Condition
   G26-20 (SEN1) - G26-15 (E)	Procedure: Engine switch off Key brought outside vehicle All doors locked Driver side door unlock sensor not touched → touched	2 V/DIV., 500 ms/DIV.	Pulse generation (See waveform)

Result: 

OK 

REPLACE CERTIFICATION ECU 

(Refer to REMOVAL [08/2015 - 08/2019] )

Result: 

NG 

REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH 

(Refer to DISASSEMBLY [08/2015 - ] )