Security Light: 16, DTC: U0100:87/P1260:00 [Immobilizer System (Advanced Keyless Entry And Push Button Start System)]

DTC	Security light flashing pattern		16	Communication error with PCM (No response)
	M-MDS display	Keyless control module	U0100:87
	M-MDS display	PCM	P1260:00
DETECTION CONDITION				Communication error between keyless control module and PCM (no response).
POSSIBLE CAUSE				Multiplex communication system DTC is stored (CAN line) PCM malfunction Keyless control module malfunction

DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	CONFIRM MULTIPLEX COMMUNICATION SYSTEM DTC Clear the DTC from the keyless control module and PCM using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] ). (See AFTER REPAIR PROCEDURE [LF, L5] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). Perform the immobilizer system DTC inspection using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] ). Is the following DTC present? Keyless control module: U0001:88 PCM: U0073:00	Yes	Go to the applicable DTC inspection. (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM] ).
1		No	Go to the next step.
2	VERIFY PCM MALFUNCTION Clear the DTC from the keyless control module and PCM using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] ). (See AFTER REPAIR PROCEDURE [LF, L5] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). Perform the immobilizer system DTC inspection using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] ). Is the following DTC present? Keyless control module: U0100:87 PCM: 1260:00	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [LF, L5] ). (See PCM REMOVAL/INSTALLATION [L3 WITH TC] ).
2		No	Go to Step 4.
3	VERIFY TROUBLESHOOTING COMPLETED Clear the DTC from the keyless control module and PCM using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] ). (See AFTER REPAIR PROCEDURE [LF, L5] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). Perform the immobilizer system DTC inspection using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] ). Is the following DTC present? Keyless control module: U0100:87 PCM: 1260:00	Yes	Replace the keyless control module, then go to the next step. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION ).
3		No	Go to the next step.
4	VERIFY THAT NO OTHER DTCs ARE PRESENT Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] ).
4		No	DTC troubleshooting completed.