RM3660EC _58 Vehicle Interior _080747 THEFT DETERRENT / KEYLESS ENTRY _0586354 SMART ENTRY AND START SYSTEM(for Start Function, Gasoline Model (NR Series)) J

THEFT DETERRENT / KEYLESS ENTRY  SMART ENTRY AND START SYSTEM(for Start Function, Gasoline Model (NR Series))  Immobiliser System does not Operate Properly  


DESCRIPTION

The immobiliser function compares the ID code that is registered in the certification ECU (smart key ECU assembly) with the ID code of the transponder chip that is embedded in the electrical key transmitter sub-assembly.

CAUTION / NOTICE / HINT

NOTICE:
·

When using the GTS with the engine switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

·

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

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

·

Make sure that no DTCs are output. If any DTCs are output, proceed to Diagnostic Trouble Code Chart.

·

Before replacing the ECM, certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU), refer to Service Bulletin.

·

After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".



HINT:

If an immobiliser function or SFI system DTC is output, first perform troubleshooting for the immobiliser function or SFI system DTC.


PROCEDURE

1.CHECK FOR DTC
a.

Check for DTCs.

Body Electrical > Entry&Start > Trouble Codes
50001 125
Powertrain > Engine > Trouble Codes
50001 372

Result:
Result Proceed to
DTCs are not output A
DTCs are output B



A

2.READ VALUE USING GTS (IMMOBILISER FUEL CUT STATUS, IMMOBILISER FUEL CUT)

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, Gasoline Model (NR Series))>DIAGNOSTIC TROUBLE CODE CHART


2.READ VALUE USING GTS (IMMOBILISER FUEL CUT STATUS, IMMOBILISER FUEL CUT)
a.

Connect the GTS to the DLC3.


b.

Turn the engine switch on (IG).


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine / Data List.


e.

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

Powertrain > Engine > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Immobiliser Fuel Cut Status Status of immobiliser fuel cut OFF or ON - -
Powertrain > Engine > Data List
Tester Display
Immobiliser Fuel Cut Status
50003 372 65
OK:

OFF is displayed after the engine is started.



Result:
Proceed to
OK
NG



OK

GO TO SFI SYSTEM

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING


NG

3.CHECK WHETHER ENGINE STARTS
3.CHECK WHETHER ENGINE STARTS
a.

Check that the engine starts 5 seconds after the engine switch turned on (IG).

OK:

Engine starts normally.



Result:
Proceed to
OK
NG



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

4.CHECK HARNESS AND CONNECTOR (ID CODE BOX (IMMOBILISER CODE ECU) - ECM)
4.CHECK HARNESS AND CONNECTOR (ID CODE BOX (IMMOBILISER CODE ECU) - ECM)
a.

Disconnect the I20 ID code box (immobiliser code ECU) connector.


b.

Disconnect the A46 ECM connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
I20-3 (EFII) - A46-45 (IMO) Always Below 1 Ω
I20-4 (EFIO) - A46-28 (IMI) Always Below 1 Ω
I20-3 (EFII) or A46-45 (IMO) - Other terminals and body ground Always 10 kΩ or higher
I20-4 (EFIO) or A46-28 (IMI) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

5.CHECK ECM (TERMINAL EFIO AND EFII)

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REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK ECM (TERMINAL EFIO AND EFII)
a.

Connect the I20 ID code box (immobiliser code ECU) connector.


b.

Connect the A46 ECM connector.


c.

Using an oscilloscope, check the waveform.

C379328C11
3.344,0.042 3.844,0.229 0.5,0.188 4.594,1.438 4.365,1.438 4.365,1.438 3.656,0.927 true 3.313,0.927 2.688,1.448 2.688,1.448 2.458,1.448 true 3,3.646 3,4.229 3,4.229 2.833,4.229 true 3.167,3.656 3.167,4.24 3.167,4.24 3.333,4.24 true 3.583,5.677 3.583,6.24 3.583,6.24 3.75,6.24 true 3.417,5.688 3.417,6.365 3.417,6.365 3.583,6.365 true 2.26,0.094 2.573,0.25 0.313,0.156 10 false *a 2.656,4.146 2.969,4.302 0.313,0.156 10 false *b 3.354,4.146 3.667,4.302 0.313,0.156 10 false *c 3.646,6.292 3.958,6.448 0.313,0.156 10 false *d 3.667,7.375 3.979,7.531 0.313,0.156 10 false *e 1.375,2.427 1.688,2.583 0.313,0.156 10 false *f 1.375,4.448 1.688,4.604 0.313,0.156 10 false *g 2.417,4.646 2.729,4.802 0.313,0.156 10 false *h 3.031,2.698 3.344,2.854 0.313,0.156 10 false *i 3.458,4.615 3.771,4.771 0.313,0.156 10 false *j 1.458,6.49 1.771,6.646 0.313,0.156 10 false *k 4.635,1.354 5.25,1.552 0.615,0.198 10 false EFII 3.781,6.156 4.094,6.313 0.313,0.156 10 false *c 3.74,7.125 4.052,7.281 0.313,0.156 10 false *d 1.854,7.135 2.167,7.292 0.313,0.156 10 false *d 1.948,7.385 2.26,7.542 0.313,0.156 10 false *e 1.042,5.646 1.406,5.906 0.365,0.26 10 false GND 1.042,3.604 1.406,3.865 0.365,0.26 10 false GND 2.115,1.365 2.729,1.563 0.615,0.198 10 false EFIO 3.5,0.052 4.115,0.25 0.615,0.198 10 false I20
*a Component with harness connected
(ID Code Box (Immobiliser Code ECU)) 		*b Approximately 160 ms.
*c Approximately 270 ms. *d Approximately 40 ms.
*e Approximately 60 ms. *f Waveform (EFII)
*g Waveform (EFIO) *h Waveform A
*i Waveform B *j Waveform C
*k Waveform A (detail) - -


NOTICE:

The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.


OK:
Tester Connection Condition Tool Setting Specified Condition
I20-3 (EFII) - Body ground Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected 2 V/DIV., 500 ms./DIV. Pulse generation
(See waveform (EFII))
I20-4 (EFIO) - Body ground Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected 2 V/DIV., 500 ms./DIV. Pulse generation
(See waveform (EFIO))



Result:
Result Proceed to
Normal waveform A
Waveform A or C not output, or has abnormal wavelength or shape B
Waveform B not output, or has abnormal wavelength or shape C



A

6.REGISTER ECU COMMUNICATION ID

B

REPLACE ID CODE BOX (IMMOBILISER CODE ECU)

C

REPLACE ECM

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>ECM>REMOVAL


6.REGISTER ECU COMMUNICATION ID
a.

Register the ECU communication ID.

HINT:

Refer to Service Bulletin.



Result:
Proceed to
NEXT



NEXT

7.CHECK WHETHER ENGINE STARTS
7.CHECK WHETHER ENGINE STARTS
a.

Check that the engine starts.

OK:

Engine starts normally.



Result:
Proceed to
OK
NG



OK

END (COMMUNICATION ID REGISTRATION WAS DEFECTIVE)

NG

REPLACE ID CODE BOX (IMMOBILISER CODE ECU)