10C-4 Immobilizer Control System:
DTC P1614: Transponder Response Error
S5JB0EA304008
Wiring Diagram
Refer to “Immobilizer Control System Wiring Circuit Diagram: ”
Detecting Condition and Trouble Area
Troubleshooting
Detecting Condition Trouble Area
Transponder code in the transponder built in the ignition
key cannot be read through immobilizer control module
(ICM).
• Use of the ignition key without the transponder
• Use of the unregistered ignition key
• Corruption of the transponder in the ignition key
• Immobilizer control module (ICM) faulty
• ECM faulty
Step Action Yes No
1 Diagnostic Trouble Code (DTC) confirmation
1) Clear DTC(s) referring to “Diagnostic Trouble Code
(DTC) Clearance: in related manual”.
2) Turn the ignition switch to OFF position.
3) Check if any DTC is detected referring to “Diagnostic
Trouble Code (DTC) Check: in related manual”.
Is DTC P1614 still detected?
Go to Step 2. The troubleshooting is
completed.
2 Diagnostic Trouble Code (DTC) check
1) Check if any DTC other than P1614 is detected referring
to “Diagnostic Trouble Code (DTC) Check: in related
manual”.
Is any DTC other than P1614 is detected?
Perform troubleshooting
referring to the
corresponding flowchart
in this section, and then
go to Step 3.
Go to Step 3.
3 Registration of the ignition key in use with ECM and
Diagnostic Trouble Code (DTC) Check
1) There is a possibility that the unregistered ignition key is
used. Therefore, register the transponder code in the
transponder in the ignition key with ECM referring to
“Registration of the Ignition Key: in related manual”.
2) Check if DTC P1614 is detected referring to “Diagnostic
Trouble Code (DTC) Check: in related manual”.
Is DTC P1614 detected?
Go to Step 4. The troubleshooting is
completed.
4 Registration of the new ignition key with ECM and
Diagnostic Trouble Code (DTC) check
1) The transponder in the ignition key is corrupted or the
ignition key without the transponder is used. Therefore,
prepare the new ignition key.
2) Register the transponder code in the transponder in the
new ignition key with ECM referring to “Registration of
the Ignition Key: in related manual”.
3) Check if that DTC P1614 is detected referring to
“Diagnostic Trouble Code (DTC) Check: in related
manual”.
Is DTC P1614 detected?
Go to Step 5. The troubleshooting is
completed.
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