RM36D0EC _58 Vehicle Interior _083094 THEFT DETERRENT / KEYLESS ENTRY _0403001 IMMOBILISER SYSTEM(w/o Smart Entry and Start System) J

THEFT DETERRENT / KEYLESS ENTRY  IMMOBILISER SYSTEM(w/o Smart Entry and Start System)  Engine does not Start but Initial Combustion Occurs  


DESCRIPTION

If the key ID codes of the door control transmitter assembly and transponder key ECU assembly match, the immobiliser system is unset and the engine start permission signal is sent to the ECM. When the ID codes of the transponder key ECU assembly and ECM match, the engine starts.

WIRING DIAGRAM

C375433E61
5.344,2.802 7,3.021 1.656,0.219 10 false A125*1, A116*2 5.333,2.979 6.052,3.24 0.719,0.26 10 false ECM 5.792,1.25 6.25,1.448 0.458,0.198 10 false +B 5.344,0.781 5.802,0.979 0.458,0.198 10 false IMO 5.302,1.729 5.76,1.927 0.458,0.198 10 false IMI 5.063,0.76 5.74,0.958 0.677,0.198 10 false 55 5.021,1.74 5.771,1.938 0.75,0.198 10 false 54 1.583,0.823 2.042,1.021 0.458,0.198 10 false EFII 1.521,1.729 1.979,1.927 0.458,0.198 10 false EFIO 1.969,0.802 2.427,1 0.458,0.198 10 false 10 1.979,1.729 2.438,1.927 0.458,0.198 10 false 11 0.281,2.802 0.74,3 0.458,0.198 10 false G52 0.281,2.979 2.573,3.198 2.292,0.219 10 false Transponder Key ECU Assembly 0.688,0.25 1.146,0.448 0.458,0.198 10 false +B 2.667,2.948 4.958,3.167 2.292,0.219 10 false *1: for GTMC Made 2.667,3.313 4.958,3.531 2.292,0.219 10 false *2: for SFTM Made

CAUTION / NOTICE / HINT

NOTICE:
·

Before replacing the transponder key ECU assembly or ECM, refer to the Service Bulletin.

·

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

·

After completing repairs, confirm that the problem does not recur.

·

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



PROCEDURE

1.CHECK TRANSPONDER KEY ECU ASSEMBLY
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical or Powertrain / Immobiliser or Engine / Trouble Codes.


e.

Check for DTCs.

Body Electrical > Immobiliser > Trouble Codes
50001 260
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 STARTS)

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>IMMOBILISER SYSTEM (w/o Smart Entry and Start System)>DIAGNOSTIC TROUBLE CODE CHART


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

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


b.

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 system fuel cut ON or OFF OFF: Fuel cut off
ON: Fuel cut 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 (HOW TO PROCEED WITH TROUBLESHOOTING)

for M20D-FKS: Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING

for M20C-FKS: Click hereEngine / Hybrid System>M20C-FKS (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 ignition switch was turned to ON.

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

Using an oscilloscope, check the waveform.

B531811C03
3.24,0.219 3.646,0.438 0.406,0.219 4.688,1.969 4.521,1.969 4.521,1.969 3.375,1.26 true 3.219,1.26 2.438,2.052 2.438,2.052 2.271,2.052 true 3,3.646 3,4.229 3,4.229 2.833,4.229 true 3.167,3.635 3.167,4.219 3.167,4.219 3.333,4.219 true 3.583,5.698 3.583,6.135 3.583,6.135 3.75,6.135 true 3.417,5.688 3.417,6.26 3.417,6.26 3.583,6.26 true 1.302,0.104 1.615,0.26 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 3.646,6.208 3.958,6.365 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 4.729,1.875 5.344,2.073 0.615,0.198 10 false EFII 3.792,6.073 4.104,6.229 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 1.063,5.656 1.427,5.917 0.365,0.26 10 false GND 1.021,3.615 1.385,3.875 0.365,0.26 10 false GND 1.948,1.969 2.563,2.167 0.615,0.198 10 false EFIO 3.323,0.25 3.938,0.448 0.615,0.198 10 false G52 3.167,6.479 3.479,6.677 0.313,0.198 10 false *k
*a Component with harness connected
(Transponder Key ECU Assembly) 		*b Approximately 160 ms.
*c Approximately 270 ms. *d Approximately 40 ms.
*e Approximately 60 ms. *f IMO Waveform
*g IMI Waveform *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.



Measurement Condition:
Tester Connection Condition Tool Setting Specified Condition
G52-10 (EFII) - Body ground Within 3 seconds of engine start or within 3 seconds of ignition switch turned ON after cable disconnected and reconnected to battery 2 V/DIV., 500 ms./DIV. Pulse generation
(See waveform B)
G52-11 (EFIO) - Body ground Within 3 seconds of engine start or within 3 seconds of ignition switch turned ON after cable disconnected and reconnected to battery 2 V/DIV., 500 ms./DIV. Pulse generation
(See waveform A and C)


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



A

5.REGISTER ECU COMMUNICATION ID (TRANSPONDER KEY ECU ASSEMBLY - ECM)

B

7.CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - ECM)

C

REPLACE ECM

for M20D-FKS: Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>ECM>REMOVAL

for M20C-FKS: Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>ECM>REMOVAL


D

8.REPLACE TRANSPONDER KEY ECU ASSEMBLY
5.REGISTER ECU COMMUNICATION ID (TRANSPONDER KEY ECU ASSEMBLY - ECM)
a.

Register the communication ID between the transponder key ECU assembly and ECM.

HINT:

Refer to Service Bulletin.



Result:
Proceed to
NEXT



NEXT

6.CHECK WHETHER ENGINE STARTS
6.CHECK WHETHER ENGINE STARTS
a.

Check that the engine starts 5 seconds after the ignition switch was turned to ON.

OK:

Engine starts normally.



Result:
Proceed to
OK
NG



OK

END (COMMUNICATION ID WAS NOT REGISTERED)

NG

8.REPLACE TRANSPONDER KEY ECU ASSEMBLY
7.CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - ECM)
a.

Disconnect the G52 transponder key ECU assembly connector.


b.

Disconnect the A125*1, A116*2 ECM connector.

*1: for GTMC Made

*2: for SFTM Made



c.

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

Standard Resistance:
for GTMC Made:
Tester Connection Condition Specified Condition
G52-10 (EFII) - A125-55 (IMO) Always Below 1 Ω
G52-11 (EFIO) - A125-54 (IMI) Always Below 1 Ω
G52-10 (EFII) or A125-55 (IMO) - Other terminals and body ground Always 10 kΩ or higher
G52-11 (EFIO) or A125-54 (IMI) - Other terminals and body ground Always 10 kΩ or higher

for SFTM Made:
Tester Connection Condition Specified Condition
G52-10 (EFII) - A116-55 (IMO) Always Below 1 Ω
G52-11 (EFIO) - A116-54 (IMI) Always Below 1 Ω
G52-10 (EFII) or A116-55 (IMO) - Other terminals and body ground Always 10 kΩ or higher
G52-11 (EFIO) or A116-54 (IMI) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

8.REPLACE TRANSPONDER KEY ECU ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.REPLACE TRANSPONDER KEY ECU ASSEMBLY
a.

Replace the transponder key ECU assembly with a new one.

HINT:

Refer to Service Bulletin.



Result:
Proceed to
NEXT



NEXT

9.REGISTER RECOGNITION CODE
9.REGISTER RECOGNITION CODE
a.

Register the recognition codes to the ECUs.

HINT:

Refer to Service Bulletin.



Result:
Proceed to
NEXT



NEXT

10.REGISTER ECU COMMUNICATION ID
10.REGISTER ECU COMMUNICATION ID
a.

Register the ECU communication ID codes.

HINT:

Refer to Service Bulletin.



Result:
Proceed to
NEXT



NEXT

11.CHECK WHETHER ENGINE STARTS
11.CHECK WHETHER ENGINE STARTS
a.

Check that the engine starts.

OK:

Engine starts normally.



Result:
Proceed to
OK
NG



OK

END (TRANSPONDER KEY ECU ASSEMBLY WAS DEFECTIVE)

NG

GO TO SFI SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)

for M20D-FKS: Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING

for M20C-FKS: Click hereEngine / Hybrid System>M20C-FKS (ENGINE CONTROL)>SFI SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING