Inspection Procedure

1. Check that entry lock and unlock functions can be operated at each door

   OK: Entry lock and unlock functions operate normally. 

NG: GO TO OTHER PROBLEM (PROCEED TO PROBLEM SYMPTOMS TABLE FOR EACH DOOR)  (See PROBLEM SYMPTOMS TABLE  )

OK: Go to next Step 

1. Remove the battery of the electrical key transmitter (See REMOVAL )
2. With the brake pedal depressed, hold the key within 10 mm (0.394 in) of the engine switch while facing the logo side of the key to the engine switch
3. When operating the engine switch, check whether the power source mode changes

   OK: Power source mode changes. 

   HINT.

   • When the electrical key transmitter cannot be verified even though it is within 10 mm (0 394 in) from the switch, the engine start check can be performed by removing the transmitter battery from the electrical key transmitter and holding the transmitter against the engine switch.
   • When performing the check, if the power source mode changes, there is a problem with key certification inside the cabin
Fig 1: Identifying Electrical Key Transmitter
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START (Power Source Mode does not Change)  (See POWER SOURCE MODE DOES NOT CHANGE  )

OK: Go to next Step 

1. Install the battery to the electrical key transmitter (See INSTALLATION )
2. Bring the electrical key transmitter near the indoor electrical key oscillator (front floor), and perform an engine start check
   NOTE: If the key is brought within 0.2 m (0.656 ft.) of the indoor electrical key oscillator (front floor), communication is not possible.
3. Bring the electrical key transmitter near the indoor electrical key oscillator (rear floor), and perform an engine start check
   NOTE: If the key is brought within 0.2 m (0.656 ft.) of the indoor electrical key oscillator (rear floor), communication is not possible.

   HINT.

   • When the electrical key transmitter is brought near the indoor electrical key oscillator, 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: The engine starts. 

NG: Go to step 4 

OK: AFFECTED BY WAVE INTERFERENCE 

1. Diagnostic mode inspection (indoor electrical key oscillator (front floor))
   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 + Front Room
   5. When the electrical key transmitter is placed on the driver seat or front passenger seat cushion, check that the wireless door lock buzzer sounds
      Fig 2: Inspecting Ignition Operation Detection Area

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Diagnostic mode inspection (indoor electrical key oscillator (rear floor))
   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 + Rear Room
   5. When the electrical key transmitter is placed on the rear seat cushion, check that the wireless door lock buzzer sounds
      Fig 3: Inspecting Ignition Operation Detection Area

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT.

      If the buzzer sounds, it can be determined that the indoor electrical key oscillators are operating normally

      Result 

      RESULT REFERENCE
      
      

      Result	Proceed to
      Front and rear operation checks are normal or fail	A
      Rear operation check is normal	B
      Front operation check is normal	C

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

B: Go to step  7

C: Go to next Step 

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

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   P33-11 (CLG5) - P15-1 (CLG3)	Always	Below 1 Ω
   P33-12 (CG5B) - P15-3 (CLGB)	Always	Below 1 Ω
   P33-11 (CLG5) - Body ground	Always	10 kΩ or higher
   P33-12 (CG5B) - Body ground	Always	10 kΩ or higher

Fig 4: Identifying P33 And P15 Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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 P33 Connector Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Tool Setting	Switch Condition	Specified Condition
   P33-11 (CLG5) - P33-12 (CGSB)	2 V/DIV, 2 μs/DIV. (Reference)	Engine switch on (IG)	Pulse generation

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

OK: REPLACE INDOOR ELECTRICAL KEY OSCILLATOR (FRONT FLOOR)  (See REMOVAL  )

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

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   P33-13 (CLG6) - Q30-1 (CLG4)	Always	Below 1 Ω
   P33-14 (CG6B) - Q30-3 (CLGB)	Always	Below 1 Ω
   P33-13 (CLG6) - Body ground	Always	10 kΩ or higher
   P33-14 (CG6B) - Body ground	Always	10 kΩ or higher

Fig 6: Identifying P33 Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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 7: Identifying P33 Connector Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Tool Setting	Switch Condition	Specified Condition
   P33-13 (CLG6) - P33-14 (CG6B)	2 V/DIV, 2 μs/DIV (Reference)	Engine switch on (IG)	Pulse generation

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

OK: REPLACE INDOOR ELECTRICAL KEY OSCILLATOR (REAR FLOOR)  (See REMOVAL  )