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


id0902e3358000

DTC

Security light flashing pattern

21

Only one key has been programmed

M-MDS display

Keyless control module

B10D8:00

PCM

P1260:00

POSSIBLE CAUSE
•  Only one key has been programmed.
•  Keyless control module malfunction


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.
•  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, then go to the next step.
2
PERFORM DTC INSPECTION AND VERIFY THAT MALFUNCTIONING PART IS KEYLESS CONTROL MODULE
•  Using the programmed key, turn the ignition switch to the ON position.
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the following DTC present?
―  Keyless control module: B10D8:00
―  PCM: P1260:00
Yes
Replace the keyless control module and program the immobilizer system-related parts.
Go to the next step.
No
Go to Step 4.
3
VERIFY TROUBLESHOOTING COMPLETED
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the following DTC present?
―  Keyless control module: B10D8:00
―  PCM: P1260:00
Yes
Inspect the DTC P1260:00.
(See MZ-CD 1.6.)
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.
No
DTC troubleshooting completed.