SECURITY LIGHT: 14, DTC: B10D7:81/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]


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DTC

Security light flashing pattern

14

Instrument cluster cannot read key ID number data normally.

M-MDS display

Instrument cluster

B10D7:81

PCM

P1260:00

POSSIBLE CAUSE
•  Transponder (key) malfunction
•  If any of the following items are touching or near key head, signal communication between key and vehicle is negatively affected, resulting in engine not starting.
―  Spare keys
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―  Keys for other vehicles equipped with an immobilizer system
―  Any metallic object
―  Any electronic device, or any credit or other card with magnetic strips
•  Coil antenna installation malfunction
•  Coil antenna malfunction
•  Instrument cluster malfunction


Diagnostic Procedure

Step

Inspection

Action

1
VERIFY COIL ANTENNA CORRECTLY INSTALLED
•  Verify the installation condition of the coil antenna.
•   Is the coil antenna correctly installed? (Is the connector not completely connected?)
Yes
Go to the next step.
No
Install the coil antenna correctly, then go to the next step.
2
VERIFY WHETHER KEY IS VALID OR NOT
•  Using another programmed key, turn the ignition switch to the ON position.
•  If there is not another programmed key, program an additional key and turn the ignition key to the ON position using the programmed key.
•  Clear DTCs using the M-MDS.
•  Verify DTCs using the M-MDS.
•  Are DTCs output again?
―  Instrument cluster: B10D7:81
―  PCM:P1260:00
Yes
Replace the coil antenna, then go to the next step.
No
•  Dispose of the malfunctioning key.
•  Program a new key if necessary.
•  Go to Step 4.
3
INSPECT INSTRUMENT CLUSTER
•  Using another programmed key, turn the ignition switch to the ON position.
•  Clear DTCs using the M-MDS.
•  Verify DTCs using the M-MDS.
•  Are DTCs output again?
―  Instrument cluster: B10D7:81
―  PCM:P1260:00
Yes
•  Replace the instrument cluster and program the immobilizer system-related parts.
•  Go to the next step.
No
Go to Step 5.
4
VERIFY AFTER REPAIR
•  Clear DTCs using the M-MDS.
•  Verify DTCs using the M-MDS.
•  Are DTCs output again?
―  Instrument cluster: B10D7:81
―  PCM:P1260:00
Yes
Inspect DTC P1260:00. (See DTC P1260:00 [ZJ, ZY].)
No
Go to the next step.
5
VERIFY THAT NO OTHER DTCs ARE PRESENT
•  Verify if other DTCs are displayed.
•  Are any other DTCs output?
Yes
Perform the corresponding DTC inspection.
No
DTC troubleshooting completed.