Driver Side Door Entry Lock and Unlock Functions do not Operate: Procedure

1. When the master switch assembly's door control switch is operated, check that the doors unlock and lock according to switch operation. Refer to OPERATION CHECK .

   OK

   Door locks operate normally.

NG → See step   10 

OK: Go to next step 

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 (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D-Door Touch Sensor	Driver side door touch sensor/ON or OFF	ON: Sensor is touched OFF: Sensor is not touched	-
   D-Door Trigger SW	Driver side door lock switch/ON or OFF	ON: Switch is touched OFF: Switch is not touched	-

   OK

   On the Techstream screen, each item changes between ON and OFF according to the chart above.

NG → See step   12 

OK: Go to next step 

1. Bring the electrical key transmitter near the driver door outside handle, and perform a driver door entry lock and unlock operation check.
   Fig 1: Identifying Distance Between Electrical Key Transmitter And Driver Door Outside Handle

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   NOTE:

   If the key is brought within 0.2 m (0.656 ft.) of the door handle, communication is not possible.

   HINT: 

   • When the electrical key transmitter is brought near the driver door outside handle, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
   • If the operation is normal, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.

   OK

   Entry functions operate normally.

NG → See step   4 

OK → AFFECTED BY WAVE INTERFERENCE 

1. Diagnostic mode inspection
   Fig 2: Identifying Distance Between Electrical Key Transmitter And Driver Door Outside Handle

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   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 / Utility / Communication Check (Key Diag Mode) / Overhead + Driver Side.
   5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.

      HINT: 

      If the buzzer sounds, it can be determined that the driver seat outside transmitter is operating normally.

      OK

      Wireless door lock buzzer sounds.

NG → See step   5 

OK → See step   11 

1. Disconnect the certification ECU (smart key ECU assembly) connector.
2. Disconnect the door electrical key oscillator connector.
   Fig 3: Identifying Certification ECU (Smart Key ECU Assembly) And Door Electrical Key Oscillator Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E36-5 (SEL1) - T2-4 (SEL)	Always	Below 1 Ω
   E36-33 (CLG1) - T2-10 (CLG)	Always	Below 1 Ω
   E36-34 (CG1B) - T2-5 (CLGB)	Always	Below 1 Ω
   E36-5 (SEL1) - Body ground	Always	10 kΩ or higher
   E36-33 (CLG1) - Body ground	Always	10 kΩ or higher
   E36-34 (CG1B) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the front door outside handle connector.
   Fig 4: Identifying Front Door Outside Handle And Door Electrical Key Oscillator Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   T1-2 (ANT2) - T2-8 (ANT2)	Always	Below 1 Ω
   T1-5 (ANT1) - T2-3 (ANT1)	Always	Below 1 Ω
   T1-2 (ANT2) - Body ground	Always	10 kΩ or higher
   T1-5 (ANT1) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Measure the voltage according to the value(s) in the table below.
   Fig 5: Identifying Door Electrical Key Oscillator Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   T2-1 (B) - T2-7 (GND)	Always	11 to 14 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the door electrical key oscillator. Refer to REMOVAL .

NEXT: Go to next step 

1. Check that the entry functions operate normally.

   OK

   Entry functions operate normally.

NG → See step   11 

OK → END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)