Inspection Procedure

1. When the door control switch on the master switch assembly is operated, check that the locked doors unlock (See OPERATION CHECK )

   OK: Locked doors unlock. 

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

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 Access / Data List.
5. Read the Data List according to the display on the Techstream

   Smart Access (Certification ECU (Smart Key ECU Assembly)) 

   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 is touched OFF Touch sensor is not touched	-
   D-Door Trigger SW	Driver side door lock switch / ON or OFF	ON Entry lack switch is pressed OFF Entry lack switch is not pressed	-

   OK: On the Techstream screen, the display changes between ON and OFF according to the chart above. 

NG: REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (DRIVER SIDE)  (See REMOVAL  )

OK: Go to next Step 

1. Bring the electrical key transmitter near the front door outside handle assembly (driver side), and perform a driver door entry lock and unlock operation check
   NOTE: If the key is brought within 0.2 m (0.656 ft.) of the door outside handle assembly, communication is not possible.
   Fig 1: Identifying Front Door Outside Handle Assembly Clearance

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT

   • When the electrical key transmitter is brought near the front door outside handle assembly (driver side), 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

   OK: Entry functions operate normally. 

NG: Go to step 4 

OK: AFFECTED BY WAVE INTERFERENCE 

1. Diagnostic mode inspection (door electrical key oscillator (driver side))
   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 / 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
      Fig 2: Identifying Door Electrical Key Oscillator Clearance (Driver Side)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT

      If the buzzer sounds, it can be determined that the door electrical key oscillator (driver side) is operating normally

      OK: Wireless door lock buzzer sounds. 

NG: Go to step 5 

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

1. Disconnect the certification ECU (smart key ECU assembly) connector
2. Disconnect the door electrical key oscillator (driver side) connector.
3. Measure the resistance according to the value (s) in the table below

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   P33-5 (SEL1) - o2-4 (SEL)	Always	Below 1 Ω
   P33-34 (CG1B) - o2-5 (CLGB)	Always	Below 1 Ω
   P33-5 (SEL1) - Body ground	Always	10 kΩ or higher
   P33-34 (CG1B) - Body ground	Always	10 kΩ or higher

Fig 3: Identifying P33 And O2 Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next Step 

1. Disconnect the front door outside handle assembly (driver side) connector
2. Measure the resistance according to the value (s) in the table below

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   o1-2 (ANT2) - o2-8 (ANT2)	Always	Below 1 Ω
   o1-5 (ANT1) - O2-3 (ANT1)	Always	Below 1 Ω
   o1-2 (ANT2) - Body ground	Always	10 kΩ or higher
   o1-5 (ANT1) - Body ground	Always	10 kΩ or higher

Fig 4: Identifying Front Door Outside Handle Assembly (Driver Side) Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next Step 

1. Remove the MPX-B fuse from the No 1 engine room junction block
2. Measure the resistance according to the value (s) in the table below

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   MPX-B fuse	Always	Below 1 Ω

NG: REPLACE FUSE (MPX-B) 

OK: Go to next Step 

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

   Standard Voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   o2-1 (+B) - p2-7 (GND)	Always	11 to 14 V

Fig 5: Identifying O2 Connector Terminal
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 (driver side) (See REMOVAL  )

1. Check that the entry functions operate normally (See OPERATION CHECK  ).

   OK: Entry functions operate normally. 

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

OK: END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)