SECURITY LIGHT: 15, DTC: B10D7:51/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]

id0902e5356700

DTC

Security light flashing pattern

15

Unprogrammed key ID number

M-MDS display

Instrument cluster

B10D7:51

PCM

P1260:00
DETECTION CONDITION
•  Instrument cluster detects the unprogrammed key ID number.
POSSIBLE CAUSE
•  Key malfunction
―  No keys have been programmed after replacing instrument cluster.
―  Unprogrammed key is used.
―  Programmed a ninth key.
•  PCM malfunction
•  Instrument cluster malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
VERIFY NUMBER OF PROGRAMMED KEYS
•  Perform the PID/data monitor inspection using the M-MDS to verify the number of programmed keys.
―  NUMKEYS
•  Are eight keys programmed?
Yes
Erase the key ID number.
Program an additional key referring to the immobilizer system-related parts programming, then go to the next step.
(See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM].)
No
Program an additional key referring to the immobilizer system-related parts programming, then go to the next step.
(See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM].)
Note
•  To start the engine, two or more programmed keys are necessary.
2
VERIFY PCM MALFUNCTION
•  Switch the ignition to ON (engine off) using the programmed key.
•  Clear the DTC from the instrument cluster and PCM using the M-MDS.
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
(See AFTER REPAIR PROCEDURE [LF, L5].)
(See PCM REMOVAL/INSTALLATION [ZY, Z6].)
(See PCM REMOVAL/INSTALLATION [MZ-CD 1.6 (Y6) (EURO4 emission level)].)
(See PCM REMOVAL/INSTALLATION [MZ-CD 1.6 (Y6) (EURO5 emission level)].)
(See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].)
(See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)
No
Dispose of the malfunctioning key and program a new key if necessary, then go to Step 4.
(See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM].)
Note
•  To start the engine, two or more programmed keys are necessary.
3
VERIFY TROUBLESHOOTING COMPLETED
•  Clear the DTC from the instrument cluster and PCM using the M-MDS.
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the same DTC present?
Yes
Replace the instrument cluster, then go to the next step.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
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 (KEYLESS ENTRY SYSTEM)].)
No
DTC troubleshooting completed.