SECURITY INDICATOR LIGHT: 22, DTC: B10DA:51/P1260:00 [START STOP UNIT]

id0902p6908800

Description	Communication error with PCM (data received failure)
Detection condition	• Start stop unit detects a communication error (data received failure) with PCM.
Fail-safe	Not applicable
Possible cause	• The immobilizer system-related part programming has not been performed 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. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING.)	—	Go to the next step.
2	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Clear the DTC for the start stop unit using the M-MDS. (See CLEARING DTC [START STOP UNIT].) • Retrieve the start stop unit DTCs using the M-MDS. (See DTC INSPECTION [START STOP UNIT].) • Is the security indicator light: 22, DTC B10DA:51/P1260:00 displayed?	Yes	Replace the start stop unit and perform Step 2 again. (See START STOP UNIT REMOVAL/INSTALLATION.) • If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)
2		No	Go to the next step.
3	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 [START STOP UNIT].)
3		No	DTC troubleshooting completed.