SECURITY LIGHT: 12, DTC: B10D5:13/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]

id0902e5353100

DTC

Security light flashing pattern

12

•  Coil antenna malfunction

•  PCM determined a malfunction in coil antenna even though it is normal

M-MDS display

Instrument cluster

B10D5:13

PCM

P1260:00

POSSIBLE CAUSE

•  Coil antenna malfunction

•  Poor connection of the coil antenna connector

•  PCM malfunction

DTC	Security light flashing pattern	12	• Coil antenna malfunction • PCM determined a malfunction in coil antenna even though it is normal
POSSIBLE CAUSE	• Coil antenna malfunction • Poor connection of the coil antenna connector • PCM malfunction

Diagnostic Procedure

Step

Inspection

Action

1

INSPECT COIL ANTENNA CONNECTOR

•  Switch the ignition to off.

•  Disconnect the negative battery cable.

•  Disconnect the coil antenna connector.

•  Is the coil antenna connector and the instrument cluster connector securely connected without corrosion, damage or disconnected pins?

Yes

Replace the coil antenna.

(See COIL ANTENNA REMOVAL/INSTALLATION [KEYLESS ENTRY SYSTEM].)

Go to the next step.

No

Securely connect the connectors, and go to the next step.

2

VERIFY AFTER REPAIR

•  Reconnect the disconnected connectors.

•  Connect the negative battery cable.

•  Clear DTCs using the M-MDS.
(See CLEARING DTC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

•  Verify DTCs using the M-MDS.
(See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

•  Are DTCs output again?

―  Instrument cluster: B10D5:13

―  PCM:P1260:00

Yes

Inspect DTC P1260:00.

(See DTC P1260:00 [L8, LF, L5].)

(See DTC P1260:00 [MZR-CD (RF Turbo)].)

No

Go to the next step.

3

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.

DTC	Security light flashing pattern		12	• Coil antenna malfunction • PCM determined a malfunction in coil antenna even though it is normal
	M-MDS display	Instrument cluster	B10D5:13
	M-MDS display	PCM	P1260:00
POSSIBLE CAUSE				• Coil antenna malfunction • Poor connection of the coil antenna connector • PCM malfunction

Step	Inspection		Action
1	INSPECT COIL ANTENNA CONNECTOR • Switch the ignition to off. • Disconnect the negative battery cable. • Disconnect the coil antenna connector. • Is the coil antenna connector and the instrument cluster connector securely connected without corrosion, damage or disconnected pins?	Yes	Replace the coil antenna. (See COIL ANTENNA REMOVAL/INSTALLATION [KEYLESS ENTRY SYSTEM].) Go to the next step.
1		No	Securely connect the connectors, and go to the next step.
2	VERIFY AFTER REPAIR • Reconnect the disconnected connectors. • Connect the negative battery cable. • Clear DTCs using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) • Verify DTCs using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) • Are DTCs output again? ― Instrument cluster: B10D5:13 ― PCM:P1260:00	Yes	Inspect DTC P1260:00. (See DTC P1260:00 [L8, LF, L5].) (See DTC P1260:00 [MZR-CD (RF Turbo)].)
2		No	Go to the next step.
3	VERIFY THAT NO OTHER DTCs ARE PRESENT • Verify if other DTCs are displayed. • Are any other DTCs output?	Yes	Perform the corresponding DTC inspection.
3		No	DTC troubleshooting completed.