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

id0902e5353100

DTC

Security light flashing pattern

12

•  Coil antenna malfunction

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

M-MDS display

Instrument cluster

B10D5:13

PCM

P1260:00

POSSIBLE CAUSE

•  Coil antenna connector or terminals malfunction

•  Coil antenna malfunction

•  PCM malfunction

DTC	Security light flashing pattern	12	• Coil antenna malfunction • PCM determines a malfunction in coil antenna even though it is normal
POSSIBLE CAUSE	• Coil antenna connector or terminals malfunction • Coil antenna malfunction • PCM malfunction

Diagnostic Procedure

Step

Inspection

Action

1

INSPECT COIL ANTENNA CONNECTOR AND TERMINALS

•  Turn the ignition switch to the LOCK position.

•  Disconnect the negative battery cable.

•  Disconnect the coil antenna connector.

•  Inspect the connector and terminals (corrosion, damage, pin disconnection).

•  Is there any malfunction?

Yes

Repair or replace the connector or terminals, then go to the next step.

No

Go to the next step.

2

PERFORM DTC INSPECTION AND VERIFY THAT MALFUNCTIONING PART IS COIL ANTENNA

•  Make sure to reconnect all disconnected connectors.

•  Reconnect the negative battery cable.

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

•  Perform the immobilizer system DTC inspection using the M-MDS.
(See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

•  Is the following DTC present?

―  Instrument cluster: B10D5:13

―  PCM: P1260:00

Yes

Replace the coil antenna, then go to the next step.

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

No

Go to Step 5.

3

PERFORM DTC INSPECTION AND VERIFY THAT MALFUNCTIONING PART IS PCM

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

•  Perform the immobilizer system DTC inspection using the M-MDS.
(See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

•  Is the following DTC present?

―  Instrument cluster: B10D5:13

―  PCM: P1260:00

Yes

Replace the PCM, then go to the next step.

(See PCM REMOVAL/INSTALLATION [MZR 1.3, MZR 1.5].)

(See PCM REMOVAL/INSTALLATION [MZ-CD 1.6].)

No

Go to Step 5.

4

VERIFY TROUBLESHOOTING COMPLETED

•  Make sure to reconnect all disconnected connectors.

•  Reconnect the negative battery cable.

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

•  Perform the immobilizer system DTC inspection using the M-MDS.
(See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

•  Is the following DTC present?

―  Instrument cluster: B10D5:13

―  PCM: P1260:00

Yes

Inspect the DTC P1260:00.

(See DTC P1260:00 [MZR 1.3, MZR 1.5].)

(See MZ-CD 1.6.)

No

Go to the next step.

5

VERIFY THAT NO OTHER DTCs ARE PRESENT

•  Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

No

DTC troubleshooting completed.

DTC	Security light flashing pattern		12	• Coil antenna malfunction • PCM determines 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 connector or terminals malfunction • Coil antenna malfunction • PCM malfunction

Step	Inspection		Action
1	INSPECT COIL ANTENNA CONNECTOR AND TERMINALS • Turn the ignition switch to the LOCK position. • Disconnect the negative battery cable. • Disconnect the coil antenna connector. • Inspect the connector and terminals (corrosion, damage, pin disconnection). • Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to the next step.
1		No	Go to the next step.
2	PERFORM DTC INSPECTION AND VERIFY THAT MALFUNCTIONING PART IS COIL ANTENNA • Make sure to reconnect all disconnected connectors. • Reconnect the negative battery cable. • Clear the DTC using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) • Perform the immobilizer system DTC inspection using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) • Is the following DTC present? ― Instrument cluster: B10D5:13 ― PCM: P1260:00	Yes	Replace the coil antenna, then go to the next step. (See COIL ANTENNA REMOVAL/INSTALLATION [KEYLESS ENTRY SYSTEM].)
2		No	Go to Step 5.
3	PERFORM DTC INSPECTION AND VERIFY THAT MALFUNCTIONING PART IS PCM • Clear DTCs using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) • Perform the immobilizer system DTC inspection using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) • Is the following DTC present? ― Instrument cluster: B10D5:13 ― PCM: P1260:00	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [MZR 1.3, MZR 1.5].) (See PCM REMOVAL/INSTALLATION [MZ-CD 1.6].)
3		No	Go to Step 5.
4	VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Reconnect the negative battery cable. • Clear the DTC using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) • Perform the immobilizer system DTC inspection using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) • Is the following DTC present? ― Instrument cluster: B10D5:13 ― PCM: P1260:00	Yes	Inspect the DTC P1260:00. (See DTC P1260:00 [MZR 1.3, MZR 1.5].) (See MZ-CD 1.6.)
4		No	Go to the next step.
5	VERIFY THAT NO OTHER DTCs ARE PRESENT • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)
5		No	DTC troubleshooting completed.