DTC B2103[IMMOBILIZER SYSTEM (PATS) (AJ (3.0L Duratec))]

id0902g3808300

Detection Condition

• The PCM received a failure signal from the coil antenna.

Possible Cause

• Coil malfunction

• Coil antenna connector connection

• PCM malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION

1

INSPECT CONNECTOR CONNECTION

•  Are the coil antenna connector and the PCM 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 THE PCM

•  Turn the ignition switch to the ON position.

•  Using the M-MDS, verify if any DTCs are displayed.

―  Is DTC B2103 displayed?

Yes

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

(See IMMOBILIZER SYSTEM (PATS) COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING[AJ (3.0L Duratec)].)

No

DTC inspection completed.

STEP	INSPECTION		ACTION
1	INSPECT CONNECTOR CONNECTION • Are the coil antenna connector and the PCM 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 THE PCM • Turn the ignition switch to the ON position. • Using the M-MDS, verify if any DTCs are displayed. ― Is DTC B2103 displayed?	Yes	Replace the PCM and perform the resetting procedure for the immobilizer system when replacing the PCM. (See IMMOBILIZER SYSTEM (PATS) COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING[AJ (3.0L Duratec)].)
2		No	DTC inspection completed.