SECURITY LIGHT: 13, DTC B2431/P1260

id0902e4903400

SECURITY LIGHT: 13	Key ID number registration error
DTC: B2431/P1260
DETECTION CONDITION	•  Key ID number registration error
POSSIBLE CAUSE	•  Errors during key ID number registration procedure •  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

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	VERIFY DTC USING WDS OR EQUIVALENT •  Is B2431/P1260 displayed?	Yes	Go to Step 3.
		No	Go to the next step.
2	VERIFY DTC USING WDS or equivalent •  Is B1600/P1260 displayed?	Yes	SECURITY LIGHT: 13, WDS or equivalent: B1600/P1260. (See SECURITY LIGHT: 13, DTC B1600/P1260.)
		No	Go to the next step.
3	INSPECT KEYLESS UNIT •  Using the WDS or equivalent, clear the key ID number and re-register it. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.) (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS SYSTEM].) Note •  Two or more keys must be registered to start the engine. •  Using the registered key, turn the ignition switch to the ON position. •  Verify the DTC Using the WDS or equivalent. ―  Is B2431/P1260 displayed again?	Yes	Replace the keyless unit and perform procedures for when replacing the keyless unit only. (See KEYLESS UNIT REMOVAL/INSTALLATION.) (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.) (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS SYSTEM].)
		No	DTC troubleshooting completed.