Inspection Procedure

1. When the master switch assembly door control switch is operated, check that the locked doors unlock.

   OK: Door locks operate normally. 

NG: GO TO POWER DOOR LOCK CONTROL SYSTEM  (See PROBLEM SYMPTOMS TABLE )

OK: Go to next step 

1. Using the Techstream, read the Data List.

   Smart Access 

   DIAGNOSTIC NOTE NORMAL CONDITION CHART
   
   

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

   Result 

   RESULT CHART
   
   

   Result	Proceed to
   Display changes according to manual operation	A
   Display does not change according to manual operation	B

B: REPLACE FRONT DOOR OUTSIDE HANDLE  (See DISASSEMBLY )

A: Go to next step 

1. Bring the electrical key transmitter near the driver side door outside handle, and perform a driver side door entry lock and unlock operation check.
   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 side 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 check 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.
     Fig 1: Identifying Distance Range Of Driver Side Door Outside Handle

     Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result 

   RESULT CHART
   
   

   Result	Proceed to
   Operation check fails	A
   Operation check is normal	B

B: AFFECTED BY WAVE INTERFERENCE 

A: Go to next step 

1. Diagnostic mode inspection (driver side door electrical key oscillator).
   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 Access / Smart Communication Check / 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. 

   Fig 2: Identifying Distance Range Of Driver Side Door Electrical Key Oscillator

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 5 

OK: REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)  (See REMOVAL  )

1. Disconnect the E29 ECU connector.
2. Disconnect the z24 oscillator connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   E29-5 (SEL1) - z24-4 (SEL)	Always	Below 1 Ω
   E29-34 (CG1B) - z24-5 (CLGB)	Always	Below 1 Ω
   E29-5 (SEL1) - Body ground	Always	10 kΩ or higher
   E29-34 (CG1B) - Body ground	Always	10 kΩ or higher

   Fig 3: Identifying E29 ECU Connector And z24 Oscillator Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the z23 handle connector.
2. Disconnect the z24 oscillator connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   z23-2 (ANT2) - z24-8 (ANT2)	Always	Below 1 Ω
   z23-5 (ANT1) - z24-3 (ANT1)	Always	Below 1 Ω
   z23-2 (ANT2) - Body ground	Always	10 kΩ or higher
   z23-5 (ANT1) - Body ground	Always	10 kΩ or higher

   Fig 4: Identifying z23 Handle Connector And z24 Oscillator Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the z24 oscillator connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   z24-1 (B) - z24-7 (GND)	Always	11 to 14 V

   Fig 5: Identifying z24 Oscillator Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the door electrical key oscillator (See DISASSEMBLY )

1. Check that the entry function operates normally.

   OK: Operates normally. 

NG: REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)  (See REMOVAL  )

OK: END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)