Driver Side Door Entry Lock and Unlock Functions do 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 position switch signal / 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. Check the following antennas in the key diagnostic mode (Refer to OPERATION CHECK [08/2015 - 08/2016] , or refer to OPERATION CHECK [08/2016 - 08/2019] ).

   OK

   Entry function operates normally.

   1. Check the electrical key antenna (for driver side):

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      TEXT IN ILLUSTRATION
      
      

      *a	0.7 to 1 m (2.30 to 3.28 ft.)

      When the electrical key transmitter is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the front door outside handle assembly LH, check that the wireless door lock buzzer sounds.

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
   O1-3 (ANT2) - G26-4 (CG1B)	Always	Below 1 Ω
   O1-6 (ANT1) - G26-3 (CLG1)	Always	Below 1 Ω
   O1-5 (B) - G26-32 (POS1)	Always	Below 1 Ω
   O1-2 (GND) - Body ground	Always	Below 1 Ω
   O1-3 (ANT2) or G26-4 (CG1B) - Body ground	Always	10 kΩ or higher
   O1-6 (ANT1) or G26-3 (CLG1) - Body ground	Always	10 kΩ or higher
   O1-5 (B) or G26-32 (POS1) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Connect the G26 certification ECU connector.
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   O1-5 (B) - Body ground	Engine switch off → on (IG)	9 to 12 V → Below 2 V

4. Using an oscilloscope, check the waveform.

   OK

   Tester Connection	Switch Condition	Tool Setting	Specified Condition
   O1-3 (ANT2) - O1-6 (ANT1)	Procedure: Engine switch off Key brought outside vehicle All doors closed Key not inside vehicle All doors locked through wireless operation	2 V/DIV., 500 ms/DIV.	Pulse generation (See waveform)

   TEXT IN ILLUSTRATION
   
   

   *1	Waveform
   *a	Front view of wire harness connector (to Front Door Outside Handle Assembly LH)

Result: 

NG 

REPLACE CERTIFICATION ECU 

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

Result: 

OK 

See step  6

1. Temporarily replace the front door outside handle assembly LH with a new or normally functioning one (Refer to DISASSEMBLY [08/2015 - ] ).

Result: 

NEXT 

See step  7

1. Check that the entry functions operate normally (Refer to OPERATION CHECK [08/2015 - 08/2016] , or refer to OPERATION CHECK [08/2016 - 08/2019] ).

   OK

   Entry functions operate normally.

Result: 

OK 

END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH IS DEFECTIVE) 

Result: 

NG 

REPLACE CERTIFICATION ECU 

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