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

Shortage of programmed key

M-MDS display

Keyless control module

B10D8:00

PCM

P1260:00

DETECTION CONDITION

•  Only one key or no key has been programmed.

POSSIBLE CAUSE

•  Only one key or no key has been programmed.

•  Keyless control module malfunction

•  PCM malfunction

DTC	Security light flashing pattern	21	Shortage of programmed key
DETECTION CONDITION	• Only one key or no key has been programmed.
POSSIBLE CAUSE	• Only one key or no key has been programmed. • Keyless control module malfunction • PCM malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION

1

VERIFY NUMBER OF PROGRAMMED KEYS

•  Access the following PID 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

Go to the next step.

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.

Note

•  To start the engine, two or more programmed keys are necessary.

2

VERIFY KEYLESS CONTROL MODULE MALFUNCTION

•  Switch the ignition to ON using the valid key other than the cause of the displayed DTC.

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

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

•  Is the same DTC present?

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 TROUBLESHOOTING COMPLETED

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

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

•  Is the same DTC present?

Yes

Replace the PCM, then go to the next step.

(See PCM REMOVAL/INSTALLATION [MZR 1.8, MZR 2.0, MZR 2.5].)

(See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI].)

(See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].)

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)].)

No

DTC troubleshooting completed.

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

STEP	INSPECTION		ACTION
1	VERIFY NUMBER OF PROGRAMMED KEYS • Access the following PID 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	Go to the next step.
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. Note • To start the engine, two or more programmed keys are necessary.
2	VERIFY KEYLESS CONTROL MODULE MALFUNCTION • Switch the ignition to ON using the valid key other than the cause of the displayed DTC. • Clear the DTC from the keyless control module using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].) • Verify the immobilizer system DTC using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].) • Is the same DTC present?	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 TROUBLESHOOTING COMPLETED • Clear the DTC from the keyless control module using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].) • Verify the immobilizer system DTC using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].) • Is the same DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [MZR 1.8, MZR 2.0, MZR 2.5].) (See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI].) (See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].)
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.