SECURITY LIGHT: 12, DTC: B2103/P1260/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND START SYSTEM)]

id09021h001700

SECURITY LIGHT: 12

Coil antenna malfunction

DTC: B2103/P1260/P1260:00

DETECTION CONDITION

•  Coil antenna malfunction

•  The PCM determined a malfunction in the 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 CONNECTOR CONNECTION

•  Are the coil antenna connector and the keyless control module connector securely connected?

Yes

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

(See COIL ANTENNA REMOVAL/INSTALLATION.)

No

Connect the connector securely.

2

INSPECT PCM

•  Turn the ignition switch to the ON position.

•  Is the DTC displayed?

―  Security light: 12

―  M-MDS: B2103/P1260/P1260:00

Yes

Replace the PCM and perform the resetting procedure for the immobilizer system when replacing the PCM.

(See PCM REMOVAL/INSTALLATION [MZI-3.7].)

(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS ENTRY AND START SYSTEM].)

No

DTC troubleshooting completed.

SECURITY LIGHT: 12	Coil antenna malfunction
DTC: B2103/P1260/P1260:00	Coil antenna malfunction
DETECTION CONDITION	• Coil antenna malfunction • The PCM determined a malfunction in the coil antenna even though it is normal
POSSIBLE CAUSE	• Coil antenna malfunction • Poor connection of the coil antenna connector • PCM malfunction

STEP	INSPECTION		ACTION
1	INSPECT CONNECTOR CONNECTION • Are the coil antenna connector and the keyless control module connector securely connected?	Yes	Replace the coil antenna, then go to the next step. (See COIL ANTENNA REMOVAL/INSTALLATION.)
1		No	Connect the connector securely.
2	INSPECT PCM • Turn the ignition switch to the ON position. • Is the DTC displayed? ― Security light: 12 ― M-MDS: B2103/P1260/P1260:00	Yes	Replace the PCM and perform the resetting procedure for the immobilizer system when replacing the PCM. (See PCM REMOVAL/INSTALLATION [MZI-3.7].) (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS ENTRY AND START SYSTEM].)
2		No	DTC troubleshooting completed.