SECURITY LIGHT: 13, DTC: B2431/P1260/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND START SYSTEM)]

id09021h001900

SECURITY LIGHT: 13	Key ID number registration error
DTC: B2431/P1260/P1260:00
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 •  Is B2431/P1260/P1260:00 displayed?	Yes	Go to Step 3.
		No	Go to the next step.
2	VERIFY DTC •  Is B1600/P1260/P1260:00 displayed?	Yes	Perform the DTC inspection for “SECURITY LIGHT: 13, M-MDS: B1600/P1260/P1260:00”. (See SECURITY LIGHT: 13, DTC: B1600/P1260/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND START SYSTEM)].)
		No	Go to the next step.
3	INSPECT KEYLESS CONTROL MODULE •  Using the M-MDS, clear the key ID number and re-register it. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS ENTRY AND START 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 M-MDS. •  Is B2431/P1260/P1260:00 displayed again?	Yes	Replace the keyless control module and perform the resetting procedure for the immobilizer system when replacing the keyless control module. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND START SYSTEM].) (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [ADVANCED KEYLESS ENTRY AND START SYSTEM].)
		No	DTC troubleshooting completed.