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 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 HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2019] )

Result: 

OK 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Data List.
5. Read the Data List according to the display on the Techstream.
   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

   On the Techstream screen, the display changes between LOCK and UNLOCK as shown in the chart above.

Result: 

NG 

GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Driver Door Lock/Unlock Functions do not Operate) 

(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 KEY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D-Door Touch Sensor	Driver side door unlock sensor / ON or OFF	ON: Driver side door unlock sensor touched OFF: Driver side door unlock sensor not touched	-

   OK

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

Result: 

OK 

REPLACE CERTIFICATION ECU 

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

Result: 

NG 

See step  4

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
   M1-4 (SENS) - F79-20 (SEN1)	Always	Below 1 Ω
   F79-20 (SEN1) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

1. Measure the voltage according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *a

   Component with harness connected (Certification ECU)

   -

   -

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   F79-20 (SEN1) - F79-15 (E)	Engine switch off, all doors locked, key not sufficiently close to vehicle and unlock sensor (for driver side) off → on	Pulse generation → Below 2 V

Result: 

OK 

REPLACE CERTIFICATION ECU 

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

Result: 

NG 

REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER SIDE) 

(Refer to DISASSEMBLY [08/2015 - ] )