New Key cannot be Registered (07/2015 -): Procedure

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR (07/2015 -)

   NOTE:

   If a malfunction occurs, do not remove/install the vehicle battery before checking for DTCs.

   OK

   DTCs are not output.

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART (07/2015 -) 

Result:  1

OK 

See step  2

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 / Data List.
   SMART KEY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Number of registered codes	Number of registered electrical key transmitter sub-assembly	0 - 7	-

   HINT: 

   Immediately after replacing the certification ECU (smart key ECU assembly), the Techstream item "Number of registered codes" should change to "0". If this item does not change to "0", the certification ECU (smart key ECU assembly) may be registered to another vehicle. A certification ECU (smart key ECU assembly) which is registered to another vehicle cannot be used.

   OK

   "0" is displayed in the Techstream display.

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL (07/2015 -) 

Result:  1

OK 

See step  3

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 / Operation History.
5. Check the freeze frame data and follow the instructions in the step column of the table below.

   Certification ECU Log of ID code registration

   Parameter Name	Detection Condition	Trouble Area	Proceed to
   Failed Registration Mode	A registration request was sent while in another mode. During registration a different registration request was sent.	-	A
   Vehicle ID not set	A vehicle ID has not been registered in the certification ECU (smart key ECU assembly).	Certification ECU (smart key ECU assembly)	B
   Key Registration Max	A registration request is sent when the maximum number of electrical key transmitter sub-assemblies has already been registered.	Certification ECU (smart key ECU assembly) ID code box (immobilizer code ECU)	C
   ID-BOX Error	A registration request is sent even though whether the vehicle is provided with an ID code box is unknown.	Certification ECU (smart key ECU assembly) ID code box (immobilizer code ECU)	D
   Vehicle Speed Too High	A registration request is sent with a vehicle speed of 5 km/h or more.	Certification ECU (smart key ECU assembly)	E
   No ECU Response	The steering lock ECU (steering lock actuator assembly) or ID code box (immobilizer code ECU) was not connected.	Certification ECU (smart key ECU assembly) Steering lock ECU (steering lock actuator assembly) ID code box (immobilizer code ECU)	F
   L Code Verification Error	The L codes registered in the ID code box (immobilizer code ECU) and steering lock ECU (steering lock actuator assembly) did not match.	Steering lock ECU (steering lock actuator assembly) ID code box (immobilizer code ECU)	G
   Key Verification: Max Number	The number of electrical key transmitter sub-assemblies registered in the ID code box (immobilizer code ECU) was more than 7.	ID code box (immobilizer code ECU)	H
   L Code OK S Code NG	The L code verification was successful but the S code stored in the ID code box (immobilizer code ECU) and certification ECU (smart key ECU assembly) did not match.	Certification ECU (smart key ECU assembly) ID code box (immobilizer code ECU)	C
   Key Verification: Amp Abnormal	Malfunction of the immobilizer amplifier, such as a short to ground.	Certification ECU (smart key ECU assembly) Engine switch	I
   Key Verification: Read Error	Although a registered electrical key transmitter sub-assembly was held near the engine switch, immobilizer system certification did not succeed.	Certification ECU (smart key ECU assembly) Electrical key transmitter sub-assembly	J
   Unverified Key	Although all of the registered electrical key transmitter sub-assemblies had been held near the engine switch, electrical key transmitter sub-assembly registration was not possible due to immobilizer system certification not being able to succeed.	Certification ECU (smart key ECU assembly) Electrical key transmitter sub-assembly	K
   Transponder Key Amp Error	Malfunction of the immobilizer amplifier, such as a short to ground.	Certification ECU (smart key ECU assembly) Engine switch	I
   New Key Registration Error	Although an unregistered electrical key transmitter sub-assembly was held near the engine switch, electrical key transmitter sub-assembly registration is not possible due to immobilizer system certification not being able to succeed.	Certification ECU (smart key ECU assembly) Electrical key transmitter sub-assembly Engine switch	L
   New Key Vehicle ID Error	Although an unregistered electrical key transmitter sub-assembly was held near the engine switch, electrical key transmitter sub-assembly registration is not possible due to the vehicle ID not being stored successfully.	Certification ECU (smart key ECU assembly) Electrical key transmitter sub-assembly	L
   New Key Registration Failed	After successful immobilizer system certification, time expired before smart recognition completion confirmation or a registration cancellation request was sent.	Certification ECU (smart key ECU assembly) Electrical key transmitter sub-assembly	L
   New Key Already Registered	Although a registered electrical key transmitter sub-assembly was held near the engine switch, time expired or a registration cancellation request was sent.	-	M
   New Key ID Code Error	Electrical key transmitter sub-assembly registration was not possible due to the certification ECU (smart key ECU assembly) not being able to store the information of the electrical key transmitter sub-assembly to EEPROM correctly.	Certification ECU (smart key ECU assembly)	B
   No Response Registering L/S Code	The certification ECU (smart key ECU assembly) or steering lock ECU (steering lock actuator assembly) was not connected.	Certification ECU (smart key ECU assembly) ID code box (immobilizer code ECU) Steering lock ECU (steering lock actuator assembly)	N
   S Code Verification NG	The S code could not be stored by the certification ECU (smart key ECU assembly) or ID code box (immobilizer code ECU).	Certification ECU (smart key ECU assembly) ID code box (immobilizer code ECU)	C
   L Code Verification NG	The L code could not be stored by the ID code box (immobilizer code ECU) or steering lock ECU (steering lock actuator assembly).	Steering lock ECU (steering lock actuator assembly) ID code box (immobilizer code ECU)	G
   ECU ID Verification Error	Electrical key transmitter subassembly registration was not possible due to there being a malfunction in the data send from the ID code box (immobilizer code ECU) to the certification ECU (smart key ECU assembly)	Certification ECU (smart key ECU assembly) ID code box (immobilizer code ECU)	C
   Key Number Write Error	The certification ECU (smart key ECU assembly) could not store the number of electrical key transmitter sub-assemblies to EEPROM.	Certification ECU (smart key ECU assembly)	B
   ID Code BOX Write Error	The certification ECU (smart key ECU assembly) could not store the information of whether the ID code box was provided in the vehicle to EEPROM.	Certification ECU (smart key ECU assembly)	B

Result:  8

B 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL (07/2015 -) 

Result:  9

C 

See step  5

Result:  10

D 

CHECK FOR DTC B2789. Refer to  DTC CHECK / CLEAR (07/2015 -) 

Result:  2

E 

See step  6

Result:  11

F 

CHECK FOR DTC B2785, B2786 or B2789. Refer to  DTC CHECK / CLEAR (07/2015 -) 

Result:  3

G 

See step  7

Result:  12

H 

REPLACE ID CODE BOX (immobilizer CODE ECU). Refer to  REMOVAL (07/2015 -) 

Result:  13

I 

CHECK FOR DTC B278A or B2784. Refer to  DTC CHECK / CLEAR (07/2015 -) 

Result:  4

J 

See step  9

Result:  6

K 

See step  13

Result:  14

L 

See step  15

Result:  15

M 

NEW KEY REGISTRATION FAILED, CHECK THE KEY 

1. Check if a registered electrical key transmitter sub-assembly was held near the engine switch instead of an unregistered electrical key transmitter sub-assembly by mistake.
2. Perform registration again using an unregistered electrical key transmitter sub-assembly. If the same problem occurs again, replace the certification ECU (smart key ECU assembly).

   Refer to REMOVAL (07/2015 -)

Result:  18

N 

CHECK FOR DTC B2785. Refer to  DTC CHECK / CLEAR (07/2015 -) 

Result:  1

A 

See step  4

1. Make sure that another mode or different registration mode is not selected.

   OK

   Another mode or a different registration mode is not selected.

   HINT: 

   If any mode has been selected, it is necessary to cancel the mode.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL (07/2015 -) 

Result:  2

NG 

REGISTRATION. Refer to  REGISTRATION (07/2015 -) 

1. Temporarily replace the certification ECU (smart key ECU assembly) with a new one and register the electrical key transmitter sub-assemblies to the new ECU.

   HINT: 

   • For replacement.

     Refer to REMOVAL (07/2015 -)

   • For registration.

     Refer to REGISTRATION (07/2015 -)

   OK

   Registration to the new certification ECU (smart key ECU assembly) has completed successfully.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

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

Result:  2

NG 

REPLACE ID CODE BOX (immobilizer CODE ECU). Refer to  REMOVAL (07/2015 -) 

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 / Combination Meter / Data List.
5. Read the Data List according to the display on the Techstream.
   COMBINATION METER
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Vehicle Speed Meter	Vehicle speed/Min.: 0, Max.: 255	Almost the same as actual vehicle speed	-

   OK

   "0" is displayed when the vehicle is stationary.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL (07/2015 -) 

Result:  2

NG 

GO TO METER / GAUGE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING (07/2015 -) 

1. Temporarily replace the certification ECU (smart key ECU assembly) with a new one and register the electrical key transmitter sub-assemblies to the new ECU.

   HINT: 

   • For replacement, Refer to REMOVAL (07/2015 -)
   • For registration, Refer to REGISTRATION (07/2015 -)

   OK

   Registration to the new certification ECU (smart key ECU assembly) has completed successfully.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

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

Result:  2

NG 

See step  8

1. Temporarily replace the steering lock ECU (steering lock actuator assembly) with a new one and register the electrical key transmitter sub-assemblies to the new ECU.

   HINT: 

   • For replacement, Refer to REMOVAL (07/2015 -)
   • For registration, Refer to REGISTRATION (07/2015 -)

   OK

   Registration to the new steering lock ECU (steering lock actuator assembly) has completed successfully.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

END (STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) WAS DEFECTIVE) 

Result:  2

NG 

REPLACE ID CODE BOX (immobilizer CODE ECU). Refer to  REGISTRATION (07/2015 -) 

1. Make sure that a registered electrical key transmitter sub-assembly is used.

   OK

   A registered electrical key transmitter sub-assembly is used.

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

USE A REGISTERED ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY AND PERFORM REGISTRATION. Refer to  REGISTRATION (07/2015 -) 

Result:  1

OK 

See step  10

1. Check the number of registered electrical key transmitter sub-assemblies.

   Result

   Result	Proceed to
   When only one electrical key transmitter sub-assembly is registered	A
   When 2 or more electrical key transmitter sub-assemblies are registered	B

Result:  1

A 

See step  12

Result:  2

B 

See step  11

1. Reregister the electrical key transmitter sub-assemblies using different order combinations.

   Refer to REGISTRATION (07/2015 -)

   HINT: 

   • Check the electrical key transmitter sub-assembly for which "Key Verification Error" is displayed.
   • If there are 2 or more electrical key transmitter sub-assemblies, make sure that the number of order combinations is the same as the number of electrical key transmitter sub-assemblies so that each transmitter can be checked first.
   • Example: When there are 3 registered electrical key transmitter sub-assemblies (A, B and C).

   Combination	Order*
   1	A → B → C
   2	B → C→ A
   3	C → A → B

   • *: Except the first electrical key transmitter sub-assembly, the remaining electrical key transmitter sub-assemblies can be checked in any order.

   HINT: 

   The electrical key transmitter sub-assembly held near the engine switch when the malfunction was detected is defective. The defective electrical key transmitter sub-assembly is the one that should be replaced.

   Result

   Proceed to	Proceed to
   "Key Verification: Read Error" is not displayed.	A
   "Key Verification: Read Error" is displayed.	B

Result:  1

A 

REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY (ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY HELD WHEN "Key Verification: Read Error" WAS DETECTED WAS DEFECTIVE) 

Result:  2

B 

See step  12

1. Temporarily replace the certification ECU (smart key ECU assembly) with a new one and register the electrical key transmitter sub-assemblies to the new ECU.

   HINT: 

   • For replacement, Refer to REMOVAL (07/2015 -)
   • For registration, Refer to REGISTRATION (07/2015 -)

   OK

   Registration to the new certification ECU (smart key ECU assembly) has completed successfully.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

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

Result:  2

NG 

REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY 

1. Check that all registered electrical key transmitter sub-assemblies are available.

   OK

   No registered electrical key transmitter sub-assemblies are missing.

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

ERASE ALL REGISTERED ELECTRICAL KEY TRANSMITTERS EXCEPT ONE, THEN REGISTER THE REMAINING ELECTRICAL KEY TRANSMITTERS. Refer to  REGISTRATION (07/2015 -) 

Result:  1

OK 

See step  14

1. Reregister the electrical key transmitter sub-assemblies using different order combinations.

   Refer to REGISTRATION (07/2015 -)

   OK

   "Key Verification: Read Error" is not displayed.

   HINT: 

   • If there are 2 or more electrical key transmitters, make sure that the number of order combinations is the same as the number of electrical key transmitters so that each transmitter can be checked first.
   • Example: When there are 3 registered electrical key transmitter sub-assemblies (A, B and C).

   Combination	Order*
   1	A → B → C
   2	B → C→ A
   3	C → A → B

   • *: Except the first electrical key transmitter sub-assembly, the remaining electrical key transmitter sub-assemblies can be checked in any order.

   HINT: 

   The electrical key transmitter sub-assembly held near the engine switch when the malfunction was detected is defective. The defective electrical key transmitter sub-assembly is the one that should be replaced.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL (07/2015 -) 

Result:  2

NG 

REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY (ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY HELD WHEN "Key Verification: Read Error" WAS DETECTED WAS DEFECTIVE) 

1. Using an unregistered electrical key transmitter sub-assembly, register the ID.

   Refer to REGISTRATION (07/2015 -)

   OK

   The key ID can be registered.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

END (ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY WAS DEFECTIVE) 

Result:  2

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL (07/2015 -)