Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUBARU2014OUTBACK 2.5I, STANDARD TRANSREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTDRIVERS ASSISTANCE SYSTEMS - ADASSUBARU EYESIGHT SYSTEM (DRIVER ASSIST) (DIAGNOSTICS)DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)DTC B28A4 ADAPTIVE CC ECM COMMUNICATION DATA ERRORDIAGNOSTIC PROCEDURE
2014 Subaru Outback 2.5i, Standard Trans
Diagnostic Procedure
2014 Subaru Outback 2.5i, Standard TransSECTION Diagnostic Procedure
DIAGNOSTIC PROCEDURE
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK LAN SYSTEM. Perform the diagnosis for LAN system. < Refer to PROCEDURE , Basic Diagnostic Procedure. > |
Is the DTC displayed in the LAN system? | Perform the diagnosis according to DTC. | Go to step 2 . |
| 2 CHECK EPS CM. Perform the diagnosis for the power steering system. |
Is DTC displayed? | Perform the diagnosis according to DTC. | Go to step 3 . |
| 3 CHECK CONNECTOR. Check the EPS CM connector and the stereo camera connector. |
Is the connector OK? | Go to step 4 . | Repair or replace the connector. |
| 4 CHECK STEREO CAMERA. Read the DTC. |
Is another DTC displayed? | Perform the diagnosis according to DTC. | Go to step 5 . |
5 CHECK STEREO CAMERA.
|
Is the same DTC displayed? | Replace the stereo camera. < Refer to REMOVAL , Stereo Camera. > | Temporary poor contact. |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.