DESCRIPTION
If the key ID codes of the key and transponder key ECU assembly match, the engine
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
CAUTION / NOTICE / HINT
NOTICE:
If the transponder key ECU assembly or ECM is replaced, refer to Registration.
Click here 
PROCEDURE
(a) Clear the DTCs.
Click here
| NEXT |
|
|
(a) Check for DTCs.
Click here
OK:
DTC is not output.
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Result
|
Proceed to
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DTCs are not output
|
A
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DTCs are output
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B
|
| B |
 |
GO TO DIAGNOSTIC TROUBLE CODE CHART
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| A |
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|
|
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3.
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READ VALUE USING TECHSTREAM (IMMOBILISER FUEL CUT)
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(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Data List.
(e) Read the Data List according to the display on the Techstream.
Engine and ECT
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Tester Display
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Measurement Item/Range
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Normal Condition
|
Diagnostic Note
|
|
Immobiliser Fuel Cut
|
Status of engine immobiliser system fuel cut / ON or OFF
|
ON: Immobiliser fuel cut on
OFF: Immobiliser fuel cut off
|
-
|
OK:
OFF is displayed after the engine is started.
| OK (for 1UR-FE) |
|
GO TO SFI SYSTEM
|
| OK (for 3UR-FE) |
|
GO TO SFI SYSTEM
|
| OK (for 3UR-FBE) |
|
GO TO SFI SYSTEM
|
| NG |
|
|
|
|
4.
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CHECK WHETHER ENGINE STARTS
|
(a) Using a registered key, turn the ignition switch to ON.
(b) Check that the engine starts 5 seconds after the ignition switch was turned
to ON.
OK:
Engine starts normally.
| OK |
|
USE SIMULATION METHOD TO CHECK
|
| NG |
|
|
|
|
5.
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CHECK TRANSPONDER KEY ECU ASSEMBLY (TERMINAL EFIO)
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(a) Using an oscilloscope, check the waveform.
|
*a
|
Component with harness connected
(Transponder Key ECU Assembly)
|
*b
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Waveform
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Measurement Condition:
|
Item
|
Content
|
|
Tester Connection
|
J26-13 (EFIO) - Body ground
|
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Tool Setting
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2 V/DIV., 500 ms./DIV.
|
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Condition
|
Within 3 seconds of starter operation and initial combustion, or within
3 seconds of ignition switch first being turned to ON after cable disconnected
and reconnected to negative (-) battery terminal
|
OK:
Waveform is output normally (refer to illustration).
|
Result
|
Proceed to
|
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Normal waveform
|
A
|
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Waveform not output, or has abnormal wavelength or shape
|
B
|
| B |
|
GO TO STEP 14
|
| A |
|
|
|
|
6.
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CHECK TRANSPONDER KEY ECU ASSEMBLY (TERMINAL EFII)
|
(a) Using an oscilloscope, check the waveform.
|
*a
|
Component with harness connected
(Transponder Key ECU Assembly)
|
*b
|
Waveform
|
|
*c
|
Approximately 160 ms
|
*d
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Approximately 510 ms
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Measurement Condition:
|
Item
|
Content
|
|
Tester Connection
|
J26-12 (EFII) - Body ground
|
|
Tool Setting
|
2 V/DIV., 500 ms./DIV.
|
|
Condition
|
Within 3 seconds of starter operation and initial combustion, or within
3 seconds of ignition switch first being turned to ON after cable disconnected
and reconnected to negative (-) battery terminal
|
OK:
Waveform is output normally (refer to illustration).
|
Result
|
Proceed to
|
|
Normal waveform
|
A
|
|
Waveform not output, or has abnormal wavelength or shape (for 1UR-FE)
|
B
|
|
Waveform not output, or has abnormal wavelength or shape (for 3UR-FE)
|
C
|
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Waveform not output, or has abnormal wavelength or shape (for 3UR-FBE)
|
D
|
| B |
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REPLACE ECM
|
| C |
|
REPLACE ECM
|
| D |
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REPLACE ECM
|
| A |
|
|
|
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7.
|
CHECK TRANSPONDER KEY ECU ASSEMBLY (TERMINAL EFIO)
|
(a) Using an oscilloscope, check the waveform.
|
*a
|
Component with harness connected
(Transponder Key ECU Assembly)
|
*b
|
Waveform
|
|
*c
|
Approximately 160 ms
|
*d
|
Approximately 510 ms
|
Measurement Condition:
|
Item
|
Content
|
|
Tester Connection
|
J26-13 (EFIO) - Body ground
|
|
Tool Setting
|
2 V/DIV., 500 ms./DIV.
|
|
Condition
|
Within 3 seconds of starter operation and initial combustion, or within
3 seconds of ignition switch first being turned to ON after cable disconnected
and reconnected to negative (-) battery terminal
|
OK:
Waveform is output normally (refer to illustration).
|
Result
|
Proceed to
|
|
Normal waveform
|
A
|
|
Waveform not output, or has abnormal wavelength or shape
|
B
|
| B |
|
GO TO STEP 10
|
| A |
|
|
|
|
8.
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REGISTER ECU COMMUNICATION ID
|
(a) Register the communication ID between the transponder key ECU assembly and
ECM.
Click here
| NEXT |
|
|
|
|
9.
|
CHECK WHETHER ENGINE STARTS
|
(a) Using a registered key, turn the ignition switch to ON.
(b) Check that the engine starts 5 seconds after the ignition switch was turned
to ON.
OK:
Engine starts normally.
| OK |
|
END (REGISTERED COMMUNICATION ID WAS DEFECTIVE)
|
| NG |
|
|
|
|
10.
|
REPLACE TRANSPONDER KEY ECU ASSEMBLY
|
(a) Replace the transponder key ECU assembly with a new one.
Click here
| NEXT |
|
|
|
(a) Register the key.
Click here
| NEXT |
|
|
|
|
12.
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REGISTER ECU COMMUNICATION ID
|
(a) Register the ECU communication ID.
Click here
| NEXT |
|
|
|
|
13.
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CHECK WHETHER ENGINE STARTS
|
(a) Using a registered key, turn the ignition switch to ON.
(b) Check that the engine starts 5 seconds after the ignition switch was turned
to ON.
OK:
Engine starts normally.
|
Result
|
Proceed to
|
|
OK
|
A
|
|
NG (for 1UR-FE)
|
B
|
|
NG (for 3UR-FE)
|
C
|
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NG (for 3UR-FBE)
|
D
|
| A |
|
END (TRANSPONDER KEY ECU ASSEMBLY WAS DEFECTIVE)
|
| B |
|
GO TO SFI SYSTEM
|
| C |
|
GO TO SFI SYSTEM
|
| D |
|
GO TO SFI SYSTEM
|
|
14.
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CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - ECM)
|
(a) Disconnect the J26 transponder key ECU assembly connector.
(b) Disconnect the A24 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for 1UR-FE
|
Tester Connection
|
Condition
|
Specified Condition
|
|
J26-13 (EFIO) - A24-40 (IMI)
|
Always
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Below 1 Ω
|
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A24-40 (IMI) - Body ground
|
Always
|
10 kΩ or higher
|
|
J26-13 (EFIO) - Body ground
|
Always
|
10 kΩ or higher
|
for 3UR-FE, 3UR-FBE
|
Tester Connection
|
Condition
|
Specified Condition
|
|
J26-13 (EFIO) - A24-46 (IMI)
|
Always
|
Below 1 Ω
|
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A24-46 (IMI) - Body ground
|
Always
|
10 kΩ or higher
|
|
J26-13 (EFIO) - Body ground
|
Always
|
10 kΩ or higher
|
| OK |
|
REPLACE TRANSPONDER KEY ECU ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
| 
