SECURITY INDICATOR LIGHT: 16, DTC: U0100:87/P1260:00 [IMMOBILIZER SYSTEM]

id0902e4908600

Description

Communication error with PCM (no response or data mis-match)
Detection condition
•  Start stop unit detects a communication error (no response or immobilizer system cancel not possible) with the PCM.
Fail-safe function
Not applicable
Possible cause
•  The immobilizer system-related parts have not been programmed when replacing the PCM or start stop unit.
•  Start stop unit malfunction
•  PCM malfunction
System wiring diagram
Not applicable

Diagnostic Procedure

Step

Inspection

Action
1
PERFORM IMMOBILIZER SYSTEM-RELATED PART PROGRAMMING
•  Perform the start stop unit replacement and programming due to simultaneous replacement of start stop unit/PCM.
•  Clear the DTC for the immobilizer system using the M-MDS.
•  Retrieve the immobilizer system DTCs using the M-MDS.
•  Security indicator light: 16, DTC U0100:87/P1260:00 displayed?
Yes
Go to the next step.
No
Go to Step 4.
2
PERFORM DTC INSPECTION AND VERIFY START STOP UNIT MALFUNCTION
•  Clear the DTC for the immobilizer system using the M-MDS.
•  Retrieve the immobilizer system DTCs using the M-MDS.
•  Security indicator: 16, DTC U0100:87/P1260:00 displayed?
Yes
Replace the start stop unit, then go to the next step.
(See START STOP UNIT REMOVAL/INSTALLATION.)
No
Go to Step 4.
3
PERFORM DTC INSPECTION AND VERIFY PCM MALFUNCTION
•  Clear the DTC for the immobilizer system using the M-MDS.
•  Retrieve the immobilizer system DTCs using the M-MDS.
•  Security indicator: 16, DTC U0100:87/P1260:00 displayed?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
(See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
No
Go to the next step.
4
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [IMMOBILIZER SYSTEM].)
No
DTC troubleshooting completed.