Driver Side Door Entry Lock Function does not Operate [08/2015 - ]: 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 - ] ).

   OK

   Door locks operate normally.

Result: 

NG 

GO TO POWER DOOR LOCK CONTROL SYSTEM 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ] )

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 / Smart Key / Data List.
5. Read the Data List according to the display on the Techstream.
   SMART KEY
   
   

   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.

   HINT: 

   When checking the operation of the entry lock function several times, it can be operated up to 2 times consecutively. To operate the function 3 times or more consecutively, the doors need to be unlocked once. However, this is only for the entry lock function, other door lock operations, such as a wireless door lock operation can be performed consecutively.

   OK

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

Result: 

OK 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

(Refer to REMOVAL [08/2015 - ] )

Result: 

NG 

See step  3

1. Disconnect the E125 certification ECU (smart key ECU assembly) connector.
2. Disconnect the z49 front door outside handle assembly (for driver door) connector.
3. Measure the resistance according to the value (s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E125-4 (CLG1) - z49-6 (ANT1)	Always	Below 1 Ω
   E125-3 (CG1B) - z49-4 (ANT2)	Always	Below 1 Ω
   E125-4 (CLG1) or z49-6 (ANT1) - Body ground	Always	10 kΩ or higher
   E125-3 (CG1B) or z49-4 (ANT2) - Body ground	Always	10 kΩ or higher

4. Reconnect the z49 front door outside handle assembly (for driver door) connector.
5. Reconnect the E125 certification ECU (smart key ECU assembly) connector.

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Using an oscilloscope, check the waveform.

   OK

   Tester Connection	Switch Condition	Tool Setting	Specified Condition
   E125-4 (CLG1) - E125-11 (E)	Procedure: Engine switch off Electrical key transmitter sub-assembly brought outside vehicle All doors closed All doors locked through wireless operation (electrical key transmitter sub-assembly brought outside detection area*) Driver door lock sensor touched	5 V/DIV., 40 ms/DIV.	Pulse generation (See waveform 1)

   1. *: For details about the entry function detection area, refer to Operation Check (Refer to OPERATION CHECK [08/2015 - 08/2017] , or refer to OPERATION CHECK [08/2017 - ] ).

Result: 

OK 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

(Refer to REMOVAL [08/2015 - ] )

Result: 

NG 

REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER DOOR) 

(Refer to DISASSEMBLY [08/2015 - ] )