Entry Lock/Unlock Functions and Wireless Functions do not Operate After New/Additional Key ID Registration [12/2022 - ]: Procedure

1. Using the electrical key transmitter sub-assembly that was used for key ID registration, check if the hybrid control system starts.

   OK

   Hybrid control system starts normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO NEXT PROCEDURE OF HOW TO PROCEED WITH TROUBLESHOOTING 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2022 - ]

Result: 

OK 

See step  2

1. Perform registration of the ECU code.

   HINT: 

   Refer to registration (ECU CODE REGISTRATION).

   Refer to REGISTRATION [12/2022 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. After completing ECU code registration, check that the entry lock and unlock functions can be operated 2 times consecutively.

   Refer to OPERATION CHECK [12/2022 - ]

   Result

   Result	Proceed to
   Entry function does not operate normally	A
   Entry function operates normally	B

Result: 

B 

END (B CODE REGISTRATION FAILED) 

Result: 

A 

See step  4

1. Read the Data List according to the display on the GTS.

   Body Electrical > Smart Key > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   B Code Registered	ECU code registration status	No or Yes	No: ECU code is not registered properly Yes: ECU code is registered properly	-

   Body Electrical > Smart Key > Data List 

   Tester Display
   B Code Registered

   NOTE:

   If "No" is displayed on the GTS screen, perform the following procedure again. (maximum of 3 times)

   • PERFORM REGISTRATION
   • CHECK ENTRY OPERATION
   • READ VALUE USING GTS (B CODE REGISTERED)

   However, if the problem symptoms do not disappear, proceed to the procedure according to Range.

   Result

   Result	Proceed to
   "Yes" is displayed on the GTS	A
   "No" is displayed on the GTS	B

Result: 

B 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

Refer to REMOVAL [12/2022 - 03/2023] , or refer to REMOVAL [03/2023 - ]

Result: 

A 

See step  5

1. Measure the voltage while checking the Data List on the GTS.
   1. Read the Data List according to the display on the GTS.

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      *a

      Component with harness connected (Certification ECU (Smart Key ECU Assembly))

      -

      -

      Body Electrical > Power Source Control > Data List 

      Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
      Power Supply Condition	Power supply state	OFF, ACC ON, IGR ON, IGP ON or Starter ON	OFF: Ignition switch off ACC ON: Ignition switch ACC IGR ON: Ignition switch ON IGP ON: Ignition switch ON Starter ON: Sending hybrid control system start request signal	-

      Body Electrical > Power Source Control > Data List 

      Tester Display
      Power Supply Condition

      Standard Voltage

      Tester Connection	Condition	Specified Condition
      K23-11 (IGRD) - Body ground	Ignition switch off	Below 1 V
      	Ignition switch ACC	Below 1 V
      	Ignition switch ON	9 V or higher
      K23-24 (IGPD) - Body ground	Ignition switch off	Below 1 V
      	Ignition switch ACC	Below 1 V
      	Ignition switch ON	9 V or higher
      K13-21 (ACCD) - Body ground	Ignition switch off	Below 1 V
      	Ignition switch ACC	8.5 V or higher
      	Ignition switch ON	8.5 V or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

Refer to REMOVAL [12/2022 - 03/2023] , or refer to REMOVAL [03/2023 - ]

Result: 

OK 

See step  6

1. Read the Data List according to the display on the GTS.

   Body Electrical > Main Body > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   IGR Power	Ignition switch status	OFF or ON	OFF: Ignition switch off ON: Ignition switch ON	-

   Body Electrical > Main Body > Data List 

   Tester Display
   IGR Power

   HINT: 

   If the certification ECU (smart key ECU assembly) misjudges for any reason that the ignition switch is ON even though the ignition switch is off, the entry lock and unlock functions will be disabled.

   Result

   Result	Proceed to
   The main body ECU (multiplex network body ECU) judges properly that the power source is off when the ignition switch is off	A
   The main body ECU (multiplex network body ECU) does not judge properly that the power source is off when the ignition switch is off	B

Result: 

B 

TROUBLESHOOT MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

Refer to TERMINALS OF ECU [12/2022 - ]

Result: 

A 

See step  7

1. Disconnect and reconnect the certification ECU (smart key ECU assembly) connectors.
2. Check that the function operates normally.

   Refer to OPERATION CHECK [12/2022 - ]

   Result

   Result	Proceed to
   Entry function does not operate normally	A
   Entry function operates normally	B

Result: 

B 

END (CONNECTOR WAS NOT CONNECTED SECURELY) 

Result: 

A 

See step  8

1. Replace the certification ECU (smart key ECU assembly) with a new one and perform registration again.

   HINT: 

   Refer to registration.

   Refer to REGISTRATION [12/2022 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  9

1. Check that the function operates normally.

   Refer to OPERATION CHECK [12/2022 - ]

   Result

   Result	Proceed to
   Wireless door lock function operates normally	A
   Wireless door lock function does not operate normally	B

Result: 

A 

END (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) WAS DEFECTIVE) 

Result: 

B 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

Refer to REMOVAL [12/2022 - 03/2023] , or refer to REMOVAL [03/2023 - ]