Category: Diagnostic Tips

Harman Audio / Infotainment: Troubleshooting Navigation System Functionality Concerns – 2017-2019 Subaru

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NUMBER: 15-227-18R
DATE: 08/21/18
REVISED: 09/05/18

APPLICABILITY: 2017-2019MY Impreza
2018-19MY Crosstrek
2018-19MY Legacy and Outback
2019MY WRX and WRX STI
2019MY Ascent
2018-19MY BRZ
SUBJECT: Harman Audio / Infotainment: Troubleshooting Navigation System Functionality Concerns

 

INTRODUCTION:

This bulletin provides troubleshooting steps to follow when diagnosing customer concerns of the Navigation system’s functionality.  Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting.  While completing the questionnaire, follow the question flow based on the customer concern.   Answer each related question noting the results to each in detail while performing the diagnostics.  Review the entire bulletin before beginning in order to understand the flow for the listed concern.  If the customer’s concern is not listed, check the Service Manual “Infotainment (Diagnostics) – Diagnostics with Phenomena” section as a starting point.

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Harman Audio / Infotainment: Troubleshooting Apple CarPlay and Android Auto Connectivity Concerns – 2017-2019 Subaru

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NUMBER: 15-220-18R
DATE: 03/08/18
REVISED: 09/05/18

APPLICABILITY: 2017-2019MY Impreza
2018-19MY Crosstrek
2018-19MY Legacy and Outback
2019MY WRX and WRX STI
2019MY Ascent
2018-19MY BRZ
SUBJECT: Harman Audio / Infotainment: Troubleshooting Apple CarPlay and Android Auto Connectivity Concerns

 

INTRODUCTION:

This bulletin provides troubleshooting steps to use when diagnosing concerns of the Apple CarPlay and / or Android Auto feature not connecting or launching properly when a compatible device is connected to the head unit.

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Harman Audio / Infotainment: Display Screen Freeze-Up or Black (Blank) Concerns – 2017-2019 Subaru

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NUMBER: 15-228-18R
DATE: 08/21/18
REVISED: 09/05/18

APPLICABILITY: 2017-2019MY Impreza
2018-19MY Crosstrek
2018-19MY Legacy and Outback
2019MY WRX and WRX STI
2019MY Ascent
2018-19MY BRZ
SUBJECT: Harman Audio / Infotainment: Display Screen Freeze-Up or Black (Blank) Concerns

 

INTRODUCTION:

This bulletin provides troubleshooting steps to follow when diagnosing a customer concern of the display screen being either frozen (unresponsive) or black (blank).  Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting.  While completing the questionnaire, follow the question flow based on the customer concern.   Answer each related question noting the results to each in detail while performing the diagnostics.  Review the entire bulletin before beginning in order to understand the flow for the listed concern.  If the concern you have is not listed, check the Service Manual “Infotainment (Diagnostics) > Diagnostics with Phenomena” section as a starting point.

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Harman Audio / Infotainment: Troubleshooting Clock-Related Concerns – 2017-2019 Subaru

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NUMBER: 15-229-18R
DATE: 08/21/18
REVISED: 09/05/18

APPLICABILITY: 2017-2019MY Impreza
2018-19MY Crosstrek
2018-19MY Legacy and Outback
2019MY WRX and WRX STI
2019MY Ascent
2018-19MY BRZ
SUBJECT: Harman Audio / Infotainment: Troubleshooting Clock-Related Concerns

 

 

INTRODUCTION:

This bulletin provides troubleshooting steps to follow when diagnosing clock-related customer concerns.  Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting.  While completing the questionnaire, follow the question flow based on the customer concern.   Answer each related question noting the results to each in detail while performing the diagnostics.  Review the entire bulletin before beginning in order to understand the flow for the listed concern.  If the concern you have is not listed, check the Service Manual “Infotainment (Diagnostics) – Diagnostics with Phenomena” section as a starting point.

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DTCs P0045 and/ or P2196: ECM Reprogramming File Availability – 2019 Subaru Ascent

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NUMBER: 11-183-18R
DATE: 09/19/18
REVISED: 09/27/18

APPLICABILITY: 2019MY Ascent
SUBJECT: DTCs P0045 and/ or P2196: ECM Reprogramming File Availability

 

INTRODUCTION:

This bulletin announces reprogramming file availability to optimize the ECM.   These new files involve the ECM’s diagnosis of DTC P0045: TURBOCHARGER / SUPERCHARGER BOOST CONTROL “A” CIRCUIT OPEN and DTC P2196: A/F / O2 SENSOR SIGNAL BIASED / STUCK RICH BANK 1 SENSOR 1.

  • For P0045, in some cases, an engine RPM drop may occur when selecting D or R range too quickly following ignition on and before the engine reaches full operation during the ECM’s initial control of the waste gate valve.  Should this occur P0045 may set the next time the engine is started.
  • For P2196, if the driver “snaps” the throttle open and shut rapidly, normal judgement of the A/F sensor data may be inaccurate and cause the code to be detected in error.

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