Readiness DTC B279A12 – 2019 Subaru Crosstrek Hybrid (PHEV)

NHTSA ID Number: 10154416

Manufacturer Communication Number: 07-145-19

Summary

The purpose of this Service Information bulletin is to advise Technicians about DTC B279A12: “ENGINE IMMOBILIZER SYSTEM CIRCUIT SHORT TO AUX BATTERY”. For 2019MY, this DTC will always be indicated when inspecting for Readiness Codes using the Subaru Select Monitor. It will set because although the ECM?s self-diagnosis function includes the DTC, there is no target value included in the logic to test against. Therefore, the test result is incomplete and the DTC is stored. Even though the DTC is displayed, the system is normal and no attempt should be made to diagnose or repair it. The logic will be changed for 2020MY.

 

1 Affected Product

Vehicle

MAKE MODEL YEAR
SUBARU CROSSTREK 2019

 

INTRODUCTION:

The purpose of this Service Information bulletin is to advise Technicians about DTC B279A12:

ENGINE IMMOBILIZER SYSTEM CIRCUIT SHORT TO AUX BATTERY”.  For 2019MY, this

DTC will always be indicated when inspecting for Readiness Codes using the Subaru Select Monitor.  It will set because although the ECM’s self-diagnosis function includes the DTC, there is no target value included in the logic to test against.  Therefore, the test result is incomplete and the DTC is stored.  Even though the DTC is displayed, the system is normal and no attempt should be made to diagnose or repair it.  The logic will be changed for 2020MY .

A screen shot of how B279A12 appears on the SSM Readiness code self-diagnosis screen is provided below for reference.

DTC B279A12



NUMBER: 07-145-19
DATE: 01/23/19

https://www.nhtsa.gov/recalls?nhtsaId=10154416

https://static.nhtsa.gov/odi/tsbs/2019/MC-10154416-9999.pdf

Download (PDF, 340KB)


 

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Last update on 2020-04-08 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2020-04-08 / Affiliate links / Images from Amazon Product Advertising API

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