SECURITY LIGHT: 21, DTC: B10D8:00/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)]

id09021d358000

DTC

Security light flashing pattern

21

Only one key or no key has been programmed

M-MDS display

Keyless control module

B10D8:00

PCM

P1260:00

POSSIBLE CAUSE

Only one key or no key has been programmed

DTC	Security light flashing pattern	21	Only one key or no key has been programmed
POSSIBLE CAUSE	Only one key or no key has been programmed

Diagnostic Procedure

Step

Inspection

Action

1

VERIFY NUMBER OF PROGRAMMED KEYS

•  Using the M-MDS, perform the PID/data monitor inspection and verify the programmed keys.
(See PID/DATA MONITOR INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)

―  NUMKEY
(See PID/DATA MONITOR TABLE [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)

•  Are two or more keys programmed?

Yes

Replace the keyless control module and program the immobilizer system-related parts.

(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].)

(See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].)

Go to Step 3.

No

Program an additional key referring to the immobilizer system-related parts programming.

(See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].)

Go to the next step.

2

VERIFY DTCs

•  Using the programmed key, ignition is switched to the ON.

•  Clear DTCs using the M-MDS.
(See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)

•  Verify DTCs using the M-MDS.
(See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)

•  Are DTCs output again?

―  Keyless control module: B108D:00

―  PCM:P1260:00

Yes

Replace the keyless control module and program the immobilizer system-related parts.

(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].)

(See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].)

Go to the next step.

No

Go to Step 4.

3

VERIFY AFTER REPAIR

•  Clear DTCs using the M-MDS.
(See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)

•  Verify DTCs using the M-MDS.
(See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)

•  Are DTCs output again?

―  Keyless control module: B108D:00

―  PCM:P1260:00

Yes

Inspect DTC P1260:00.

(See DTC P1260:00 [L8, LF, L5].)

No

Go to the next step.

4

VERIFY THAT NO OTHER DTCs ARE PRESENT

•  Verify if other DTCs are displayed.

•  Are any other DTCs output?

Yes

Perform the corresponding DTC inspection.

No

DTC troubleshooting completed.

DTC	Security light flashing pattern		21	Only one key or no key has been programmed
	M-MDS display	Keyless control module	B10D8:00
	M-MDS display	PCM	P1260:00
POSSIBLE CAUSE				Only one key or no key has been programmed

Step	Inspection		Action
1	VERIFY NUMBER OF PROGRAMMED KEYS • Using the M-MDS, perform the PID/data monitor inspection and verify the programmed keys. (See PID/DATA MONITOR INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].) ― NUMKEY (See PID/DATA MONITOR TABLE [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].) • Are two or more keys programmed?	Yes	Replace the keyless control module and program the immobilizer system-related parts. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].) (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].) Go to Step 3.
1		No	Program an additional key referring to the immobilizer system-related parts programming. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].) Go to the next step.
2	VERIFY DTCs • Using the programmed key, ignition is switched to the ON. • Clear DTCs using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].) • Verify DTCs using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].) • Are DTCs output again? ― Keyless control module: B108D:00 ― PCM:P1260:00	Yes	Replace the keyless control module and program the immobilizer system-related parts. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].) (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].) Go to the next step.
2		No	Go to Step 4.
3	VERIFY AFTER REPAIR • Clear DTCs using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].) • Verify DTCs using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].) • Are DTCs output again? ― Keyless control module: B108D:00 ― PCM:P1260:00	Yes	Inspect DTC P1260:00. (See DTC P1260:00 [L8, LF, L5].)
3		No	Go to the next step.
4	VERIFY THAT NO OTHER DTCs ARE PRESENT • Verify if other DTCs are displayed. • Are any other DTCs output?	Yes	Perform the corresponding DTC inspection.
4		No	DTC troubleshooting completed.