SECURITY LIGHT: 16, DTC: U0100:87/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]SM2445839
SECURITY LIGHT: 16, DTC: U0100:87/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]

id0902e5356800

DTC

Security light flashing pattern

16

Communication error between the instrument cluster and the PCM (no response)

M-MDS display

Instrument cluster

U0100:87

PCM

P1260:00
DETECTION CONDITION
• Communication error between the instrument cluster and the PCM (no response)
POSSIBLE CAUSE
• Malfunction in the wiring harness (CAN line) between the instrument cluster and the PCM
• PCM malfunction
• Instrument cluster malfunction


Diagnostic Procedure

STEP

INSPECTION

ACTION
1
VERIFY DTC
• Are either U0001:88 or U0073:00, or both, displayed, by either the instrument cluster or the PCM, or both?
Yes
Perform troubleshooting according to the corresponding DTC inspection.
(See DTC U0001:88, U0073, U0073:00, U1900 [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (L3 Turbo))].)
(See DTC U0001:88, U0073, U0073:00, U1900 [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (L3 Turbo))].)
(See DTC U0001:88, U0073, U0073:00, U1900 [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (L5))].)
(See DTC U0001:88, U0073, U0073:00, U1900 [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (L5))].)
(See DTC U0001:88, U0073, U0073:00, U1900 [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (MZR-CD 2.2))].)
(See DTC U0001:88, U0073, U0073:00, U1900 [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR-CD 2.2))].)
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 [KEYLESS ENTRY SYSTEM].)
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: U0100:87/P1260:00
Yes
Replace the PCM and perform the resetting procedure for the immobilizer system when replacing the PCM.
(See PCM REMOVAL/INSTALLATION [L3 Turbo].)
(See PCM REMOVAL/INSTALLATION [L5].)
(See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].)
(See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM].)
No
DTC troubleshooting completed.