SECURITY LIGHT 13, DTC -/B2431/P1260


DTC 13	ID number signal is not received.
POSSIBLE CAUSE	• The procedure fails to program the transponder into PCM • Any of the following items are touching or near the key head. - Spare keys - Keys for other vehicles equipped with an immobilizer system - Any metallic object - Any electronic device, or any credit or other cards with magnetic strips


STEP	INSPECTION		ACTION
1	VERIFY DTC USING M-MDS • Does M-MDS indicate DTC -/B2431?	Yes	Go to Step 3.
1		No	Go to next step.
2	VERIFY DTC USING M-MDS • Does M-MDS indicate DTC -/B1600?	Yes	Go to SECURITY LIGHT 13: DTC -/B1600.
2		No	Go to next step.
3	INSPECT KEYLESS CONTROL MODULE • Erase key ID number using M-MDS and register key ID number. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [WITH ADVANCED KEYLESS SYSTEM]) • Using registered key, turn ignition switch to ON position. • Does M-MDS indicate DTC -/B2431 again?	Yes	Replace keyless control module, then go to the next step. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION)
3		No	DTC troubleshooting completed.
4	INSPECT INSTRUMENT CLUSTER • Using registered key, turn ignition switch to ON position. • Does M-MDS indicate DTC -/B2431 again?	Yes	Replace instrument cluster and reprogram immobilizer system. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [WITH ADVANCED KEYLESS SYSTEM])
4		No	DTC troubleshooting completed.