SECURITY LIGHT: 22, DTC: B10DA:51/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]

id0902e5358500

DTC

Security light flashing pattern

22

Communication error to PCM (Data transfer failure)

M-MDS display

Instrument cluster

B10DA:51

PCM

P1260:00
DETECTION CONDITION
•  Communication error between instrument cluster and PCM (Data transfer failure).
POSSIBLE CAUSE
•  Wiring harness between instrument cluster and PCM (CAN line)
•  Immobilizer system-related parts have not been programmed after replacing instrument cluster.
•  Immobilizer system-related parts have not been programmed after replacing PCM.
•  Instrument cluster malfunction
•  PCM malfunction


Diagnostic Procedure

STEP

INSPECTION

ACTION
1
VERIFY DTCs
•  Clear the DTC from the instrument cluster using the M-MDS.
•  Verify the immobilizer system DTC using the M-MDS.
•  Is the following DTC present?
―  U0001:88
Yes
Go to the applicable DTC inspection.
(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI))].)
(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI))].)
(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (MZR 2.0 DISI))].)
(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR 2.0 DISI))].)
(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (MZR-CD 2.2))].)
(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR-CD 2.2))].)
No
Go to the next step.
2
VERIFY WHETHER PROGRAMMING OF IMMOBILIZER SYSTEM-RELATED PARTS HAS BEEN PERFORMED AFTER REPLACING INSTRUMENT CLUSTER
•  After replacing the instrument cluster, has the programming of immobilizer system-related parts been performed?
Yes
Go to the next step.
No
Perform the programming of immobilizer system-related parts after replacing the instrument cluster only, then go to Step 5.
(See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM].)
3
VERIFY WHETHER PROGRAMMING OF IMMOBILIZER SYSTEM-RELATED PARTS HAS BEEN PERFORMED AFTER REPLACING PCM
•  After replacing the PCM, has the programming of immobilizer system-related parts been performed?
Yes
Go to the next step.
No
Perform the programming of immobilizer system-related parts after replacing the PCM only, then go to Step 5.
(See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM].)
4
VERIFY INSTRUMENT CLUSTER MALFUNCTION
•  Clear the DTC from the instrument cluster using the M-MDS.
•  Verify the immobilizer system DTC using the M-MDS.
•  Is the following DTC present?
―  Instrument cluster: B10DA:51
―  PCM: P1260:00
Yes
Replace the instrument cluster and program the immobilizer system-related parts.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
(See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM].)
Go to the next step.
No
Go to Step 6.
5
VERIFY TROUBLESHOOTING COMPLETED
•  Clear the DTC from the instrument cluster using the M-MDS.
•  Verify the immobilizer system DTC using the M-MDS.
•  Is the following DTC present?
―  Instrument cluster: B10DA:51
―  PCM: P1260:00
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.
6
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.