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


id0902e5356800

DTC

Security light flashing pattern

16

Communication error with PCM (No response)

M-MDS display

Instrument cluster

U0100:87

PCM

P1260:00

DETECTION CONDITION
•  Communication error between instrument cluster and PCM (no response).
POSSIBLE CAUSE
•  Multiplex communication system DTC is stored (CAN line)
•  PCM malfunction
•  Instrument cluster malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION

1
CONFIRM MULTIPLEX COMMUNICATION SYSTEM DTC
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the following DTC present?
―  Instrument cluster: U0001:88
―  PCM: U0073:00
Yes
Go to the applicable DTC inspection.
No
Go to the next step.
2
VERIFY PCM MALFUNCTION
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the following DTC present?
―  Instrument cluster: U0100:87
―  PCM: 1260:00
Yes
Replace the PCM, then 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?
―  Instrument cluster: U0100:87
―  PCM: 1260:00
Yes
Replace the instrument cluster, then go to the next step.
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.