RM38N0EC _58 Vehicle Interior _111832 THEFT DETERRENT / KEYLESS ENTRY _0509383 SMART ENTRY AND START SYSTEM(for Entry Function, Gasoline Model) J

THEFT DETERRENT / KEYLESS ENTRY  SMART ENTRY AND START SYSTEM(for Entry Function, Gasoline Model)  Entry Lock/Unlock Functions and Wireless Functions do not Operate After New/Additional Key ID Registration  


DESCRIPTION

If all of the following conditions are met after an error message is displayed on the screen of the GTS during registration, or after performing new key ID registration or additional key ID registration, it is suspected that there is an ID code registration failure between the certification ECU (smart key ECU assembly) and main body ECU (multiplex network body ECU), or there is a certification ECU (smart key ECU assembly) or main body ECU (multiplex network body ECU) malfunction.

·

It is possible to start the engine

·

Wireless door lock/unlock operation is not possible

·

Entry lock/unlock operation is not possible


Also, if the engine does not start, refer to the following and perform troubleshooting as the suspected cause is a malfunction of the electrical key transmitter sub-assembly, smart entry and start system (for start function), etc.

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING

WIRING DIAGRAM

B714426E28
0.229,0.698 3.135,0.896 2.906,0.198 10 false from ECU-DCC NO. 2 Fuse 1.115,2.385 2.802,2.583 1.688,0.198 10 false to IGP Relay 1.063,1.74 2.135,1.938 1.073,0.198 10 false to ACC Relay 0.594,1.219 2.49,1.417 1.896,0.198 10 false from Auxiliary Battery 4.906,0.719 5.219,0.917 0.313,0.198 10 false A15 4.917,2.417 5.281,2.625 0.365,0.208 10 false A15 4.958,2.219 5.271,2.417 0.313,0.198 10 false 24 4.969,0.531 5.281,0.729 0.313,0.198 10 false 22 4.99,1.594 5.302,1.792 0.313,0.198 10 false 21 4.99,1.063 5.146,1.26 0.156,0.198 10 false 6 5.281,0.729 5.896,0.927 0.615,0.198 10 false CUTB 5.26,2.313 5.875,2.51 0.615,0.198 10 false IGPD 5.271,1.688 5.885,1.885 0.615,0.198 10 false ACCD 5.292,1.24 5.604,1.438 0.313,0.198 10 false +B 5.76,1.917 6.073,2.115 0.313,0.198 10 false +B 6.24,2.313 6.552,2.51 0.313,0.198 10 false IC 3.479,1.427 3.938,1.625 0.458,0.198 10 false AM2 5.292,4.854 6.813,5.542 1.521,0.688 10 false Certification ECU (Smart Key ECU Assembly) 0.646,4.802 2.313,5.302 1.667,0.5 10 false Main Body ECU (Multiplex Network Body ECU) 0.854,6.156 3.188,6.375 2.333,0.219 10 false : CAN Communication Line 5.281,2.99 5.896,3.188 0.615,0.198 10 false IGRD 5.76,2.573 6.073,2.771 0.313,0.198 10 false +B 4.906,3.063 5.438,3.417 0.531,0.354 10 false A15 4.958,2.875 5.271,3.073 0.313,0.198 10 false 11 1.146,3.042 2.833,3.24 1.688,0.198 10 false to IGR Relay 5.802,1.271 6.115,1.469 0.313,0.198 10 false +B 4.917,1.781 5.375,1.979 0.458,0.198 10 false E52 4.917,1.25 5.375,1.448 0.458,0.198 10 false E52

CAUTION / NOTICE / HINT

NOTICE:
·

When using the GTS with the ignition switch off, perform lock and unlock operations using the door control switch of the multiplex network master switch assembly at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins, and then select the vehicle model manually.

Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start (CAN). While using the GTS, periodically perform lock and unlock operations using the door control switch of the multiplex network master switch assembly at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

·

The smart entry and start system (for Entry Function) uses the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart entry and start system (for Entry Function) after confirming that the communication systems are functioning properly.

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Entry Function, Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING

·

Before replacing the certification ECU (smart key ECU assembly) or main body ECU (multiplex network body ECU), refer to Service Bulletin.

·

It is necessary to perform initialization (Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING RECEIVER>INITIALIZATION) after registration (Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING RECEIVER>REGISTRATION) of the transmitter IDs into the electrical key and tire pressure warning ECU and receiver if the electrical key and tire pressure warning ECU and receiver has been replaced.

·

Check that there are no electrical key transmitter sub-assemblies in the vehicle.

·

After repair, confirm that no DTCs are output.

·

Inspect the fuses for circuits related to this system before performing the following procedure.



PROCEDURE

1.CHECK WHETHER ENGINE STARTS
a.

Using the electrical key transmitter sub-assembly that was used for key ID registration, check if the engine starts.

OK:

Engine starts normally.



Result:
Proceed to
OK
NG



OK

2.PERFORM REGISTRATION

NG

GO TO NEXT PROCEDURE OF HOW TO PROCEED WITH TROUBLESHOOTING

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING


2.PERFORM REGISTRATION
a.

Perform registration of the B code.

HINT:

Refer to Service Bulletin (ECU CODE REGISTRATION).



Result:
Proceed to
NEXT



NEXT

3.CHECK ENTRY OPERATION
3.CHECK ENTRY OPERATION
a.

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

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Entry Function, Gasoline Model)>OPERATION CHECK


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



A

4.READ VALUE USING GTS (B CODE REGISTERED)

B

END (B CODE REGISTRATION FAILED)

4.READ VALUE USING GTS (B CODE REGISTERED)
a.

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

Body Electrical > Entry&Start > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
B Code Registered B code registration status No or Yes No: B code is not registered properly
Yes: B code is registered properly 		-
Body Electrical > Entry&Start > Data List
Tester Display
B Code Registered
50003 440 23
NOTICE:

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



A

5.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

B

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

5.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
a.

Measure the voltage while checking the Data List on the GTS.

i.

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

B574616C10
4.792,0.385 5.188,0.615 0.396,0.229 1.917,0.375 2.313,0.604 0.396,0.229 5.635,2.135 5.417,1.229 false 2.552,2.177 2.292,1.146 false 1.406,2.083 2.24,1.229 false 0.198,0.156 0.51,0.354 0.313,0.198 10 false *a 5.479,2.156 5.938,2.365 0.458,0.208 10 false ACCD 4.885,0.427 5.198,0.625 0.313,0.198 10 false E52 1.99,0.417 2.302,0.615 0.313,0.198 10 false A15 2.469,2.208 2.896,2.438 0.427,0.229 10 false IGRD 1.292,2.125 1.719,2.354 0.427,0.229 10 false IGPD
*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 engine start request signal 		-
Body Electrical > Power Source Control > Data List
Tester Display
Power Supply Condition
50003 454 405
Standard Voltage:
Tester Connection Condition Specified Condition

Click Location & Routing(A15,E52)Location & Routing

Click Connector(A15)Instrument Panel>Engine Room Main Wire>Smart Key ECU Assembly

Click Connector(E52)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Smart Key ECU Assembly

A15-11 (IGRD) - Body ground Ignition switch off Below 1 V
Ignition switch ACC Below 1 V
Ignition switch ON 9 V or higher
A15-24 (IGPD) - Body ground Ignition switch off Below 1 V
Ignition switch ACC Below 1 V
Ignition switch ON 9 V or higher
E52-21 (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



OK

6.READ VALUE USING GTS (IGR POWER)

NG

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

6.READ VALUE USING GTS (IGR POWER)
a.

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
50003 449 122
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



A

7.CHECK ENTRY OPERATION

B

TROUBLESHOOT MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click hereVehicle Interior>LIGHTING (INT)>LIGHTING SYSTEM>TERMINALS OF ECU


7.CHECK ENTRY OPERATION
a.

Disconnect and reconnect the certification ECU (smart key ECU assembly) connectors.


b.

Check that the function operates normally.

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Entry Function, Gasoline Model)>OPERATION CHECK


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



A

8.REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

B

END (CONNECTOR WAS NOT CONNECTED SECURELY)

8.REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
a.

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

HINT:

Refer to Service Bulletin.



Result:
Proceed to
NEXT



NEXT

9.CHECK WIRELESS DOOR LOCK CONTROL SYSTEM
9.CHECK WIRELESS DOOR LOCK CONTROL SYSTEM
a.

Check that the function operates normally.

Click hereVehicle Interior>DOOR LOCK>WIRELESS DOOR LOCK CONTROL SYSTEM>OPERATION CHECK


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



A

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

B

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL