Diagnostic Tips

DTCs C1531 and C1741- VDC Control Module Reprogramming – 2015-2018 Subaru Legacy & Outback 2016-2018 WRX

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2018 Subaru WRX STI

NHTSA ID Number: 10182218 Manufacturer Communication Number: 06-77-20R Summary This bulletin announces the availability of reprogramming files to optimize the control module for the Vehicle Dynamics Control system (VDCCM). DTCs C1531 and/or C1741 may set, the Hill Holder warning lamp and cancellation alarm may activate and/or the VDC warning lamp can illuminate.   NUMBER: 06-77-20R DATE: 06/02/20 … Read more

Auto Start-Stop Inoperative / DTC P1C45 to P1C5A – 2014-2016 Subaru Crosstrek Hybrid

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2016 Subaru Crosstrek Hybrid

NHTSA ID Number: 10180732 Manufacturer Communication Number: 07-180-20 Summary This service information bulletin provides revised diagnostics and additional reference information to use when diagnosing DTCs P1C45, 46, 47,48,49 and P1C5A.   NUMBER: 07-180-20 DATE: 9/8/2020 APPLICABILITY: 2014-16MY Crosstrek Hybrid SUBJECT: Auto Start-Stop Inoperative / DTC P1C45 to P1C5A   INTRODUCTION: This Service Information Bulletin provides revised diagnostics … Read more

FOTA (Firmware Over-The-Air) Reprogramming for DENSO Gen 4 Audio / Navigation Infotainment Systems – 2020-2023 Subaru

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Subaru Logo

NHTSA ID Number: 10233892 Manufacturer Communication Number: 15-270-20R Summary This bulletin provides instruction for use of a new reprogramming procedure to optimize the Denso Gen 4 Audio and Navigation system utilized in the models listed.   NUMBER: 15-270-20R DATE: 8/19/2020 REVISED: 03/15/23 APPLICABILITY: 2020-2022MY Outback & Legacy 2022-2023MY BRZ 2022-2023MY WRX SUBJECT: FOTA (Firmware Over-The-Air) Reprogramming for … Read more

Power Rear Gate (PRG) Switch Trim- Design Change – 2019-2020 Subaru

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Subaru Logo

NHTSA ID Number: 10191582 Manufacturer Communication Number: 12-300-20R Summary This bulletin announces design changes made to the trim cover for the PRG control switches located on the bottom of the rear gate inner trim panel.   NUMBER: 12-300-20R DATE: 09/30/20 REVISED: 04/07/21 INTRODUCTION: This bulletin announces design changes made to the trim cover for the rear gate … Read more

Microphone Testing Procedure for Denso CP1 Infotainment Systems – 2020-2021 Subaru Legacy & Outback

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2021 Subaru Legacy

NHTSA ID Number: 10183700 Manufacturer Communication Number: 15-275-20 Summary This Service Information Bulletin provides a testing procedure for the microphone used in Denso CP1 infotainment systems.   NUMBER: 15-275-20 DATE: 11/10/2020 APPLICABILITY: 2020-21MY Legacy and Outback SUBJECT: Microphone Testing Procedure for Denso CP1 Infotainment Systems   INTRODUCTION: This Service Information Bulletin provides a testing procedure for the … Read more