SECURITY LIGHT: 15, DTC: B10D7:51/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]SM2445838
SECURITY LIGHT: 15, DTC: B10D7:51/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]

id0902e5356700

DTC

Security light flashing pattern

15

The instrument cluster has detected unregistered key ID number

M-MDS display

Instrument cluster

B10D7:51

PCM

P1260:00
DETECTION CONDITION
• The instrument cluster has detected unregistered key ID number
POSSIBLE CAUSE
• No keys have been registered after replacing the instrument cluster
• Unregistered key used
• Attempt made to register a ninth key
• Instrument cluster malfunction


Diagnostic Procedure

STEP

INSPECTION

ACTION
1
VERIFY NUMBER OF REGISTERED KEYS
• Using the M-MDS, perform the PID/data monitor inspection and confirm the number of registered keys. (See PID/DATA MONITOR TABLE [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)
• Are one or more keys registered?
Yes
Go to the next step.
No
Go to Step 3.
2
VERIFY NUMBER OF REGISTERED KEYS
• Using the M-MDS, perform the PID/data monitor inspection and confirm the number of registered keys. (See PID/DATA MONITOR TABLE [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)
• Are eight keys registered?
Yes
Using the M-MDS, clear the key ID numbers as necessary, then go to the next step.
No
Go to the next step.
3
INSPECT INSTRUMENT CLUSTER
• Using the M-MDS, register the key ID number. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM].)
Note
• Two or more keys must be registered to start the engine.
• Using the registered key, turn the ignition switch to the ON position.
• Is the DTC displayed again?
― Security light: 15
― M-MDS: B10D7:51/P1260:00
Yes
Replace the instrument cluster and perform the resetting procedure for the immobilizer system when replacing the instrument cluster.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
(See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM].)
No
DTC troubleshooting completed.