SECURITY LIGHT 16, DTC U2510/P1260, U1147/P1260 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]

id0902e5801200

DTC | Security light flashing pattern | 16 | • Communication error between the instrument cluster and the PCM (no response) • Communication error between the instrument cluster and the PCM (mismatched conditions)
--- | --- | --- | ---
M-MDS display | Instrument cluster | U2510 U1147
PCM | P1260
POSSIBLE CAUSE | • Malfunction in wiring harness (CAN line) between instrument cluster and PCM • PCM malfunction • Instrument cluster malfunction

Diagnostic Procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | VERIFY DTC • Are either U0073, or both, displayed, by either the instrument cluster or the PCM, or both? | Yes | Perform troubleshooting according to the corresponding DTC inspection. (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D.)].) (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D.)].)
No | 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.) Go to the next step.
2 | VERIFY DTC • Using the registered key, turn the ignition switch to the ON position. • Is the DTC displayed? ― Security light: 16 ― M-MDS: U2510 or U1147/P1260 | Yes | Replace the PCM and perform the resetting procedure for the immobilizer system when replacing the PCM. (See PCM REMOVAL/INSTALLATION [L8, LF].) (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING.)
No | DTC troubleshooting completed.