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.
SUBARU Eyesight System (Driver Assist) (Diagnostics)
2016 Subaru Legacy 2.5iSECTION SUBARU Eyesight System (Driver Assist) (Diagnostics)
- Basic Diagnostic Procedure
- Check List for Interview
- General Description
- Electrical Component Location
- Control Module I/O Signal
- Subaru Select Monitor
- Read Current Data
- Real-time Diagnosis
- Diagnostic Code(s) Display
- Freeze Frame Data Display
- Clear Memory Mode
- Clear Active Lane Keep System Learning Value
- Diagnostics with Phenomenon
- Diagnostic Procedure With Phenomenon
- TEMPORARY STOP OF EyeSight
- Adaptive Cruise Control, Conventional Cruise Control
- Pre-Collision Brake, At Rapid Start Prevention Control
- Lane Departure Warning, Sway Warning, Forward Vehicle's Start Monitoring Function
- Active Lane Keep (Lane Departure Prevention)
- Check List (Adaptive Cruise Control)
- Check List (Pre-Collision Brake)
- Check List (At Rapid Start Prevention Control)
- Check List (Lane Departure Warning, Sway Warning, Forward Vehicle's Start Monitoring Function)
- Check List (Active Lane Keep)
- Check Adaptive Cruise Control Indicator Light/Constant Speed Cruise Control Indicator Light And Cruise Set Indicator Light
- CHECK EyeSight STEERING SWITCH
- Diagnostic Procedure With Phenomenon
- EyeSight Temporary Code(s) Display
- ECM Cancel Code(s) Display
- ACC Cancel Code(s) Display
- Active Lane Keep System Code(s) Display
- Diagnostic Procedure with Diagnostic Trouble Code (DTC)
- DTC U0073 Control Module Communication Bus Off
- DTC U0100 Lost Communication With ECM/Pcm "A"
- DTC U0101 Lost Communication With TCM
- DTC U0122 Lost Communication With Vehicle Dynamics Control Module
- DTC U0126 Lost Communication With Steering Angle Sensor Module
- DTC U0131 Lost Communication With Power Steering Control Module
- DTC U0140 Lost Communication With Body Control Module
- DTC U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module
- DTC U0401 Invalid Data Received From ECM/Pcm "A"
- DTC U0402 Invalid Data Received From TCM
- DTC U0416 Invalid Data Received From Vehicle Dynamics Control Module
- DTC U0420 Invalid Data Received From Power Steering Control Module
- DTC U0422 Invalid Data Received From Body Control Module
- DTC U0423 Invalid Data Received From Instrument Panel Cluster Control Module
- DTC U0428 Invalid Data Received From Steering Angle Sensor Module
- DTC B2801 TCM Abnormal
- DTC B2802 Etc Abnormal
- DTC B2803 EPB Operation Prohibit
- DTC B2804 EPB No Activity Detected
- DTC B2806 ECM Abnormal
- DTC B2807 ECM Abnormal
- DTC B2809 VDC Malfunction
- DTC B280A VDC Echo Back Disagreement
- DTC B280B VDC Brake Fluid Pressure
- DTC B280C VDC Brake Control Prohibit
- DTC B280F Combination Meter Malfunction
- DTC B2810 INCOMPATIBLE WITH EyeSight (COMBINATION METER)
- DTC B2811 EPS Abnormal
- DTC B2814 Power Supply Low Voltage
- DTC B2815 Power Supply High Voltage
- DTC B2817 Brake Lamp
- DTC B281B Steering Angle Sensor Fail
- DTC B281C INCOMPATIBLE WITH EyeSight (EPS)
- DTC B28A0 Vehicle Model Judgment
- DTC B28A1 EyeSight COMMUNICATION (ECM)
- DTC B28A2 EyeSight COMMUNICATION (VDC)
- DTC B28A3 EyeSight COMMUNICATION (METER)
- DTC B28A4 EyeSight COMMUNICATION (EPS)
- DTC B28A5 Engine Torque Limiter Control Prohibit
- DTC B28A6 Internal Stereo Camera Communication 1
- DTC B28A7 Stereo Camera Recognition (Target)
- DTC B28A8 Internal Stereo Camera Communication 2
- DTC B28A9 Stereo Camera Synchronized Recognition Data
- DTC B28AA Stereo Camera Microcomputer 1
- DTC B28AB Stereo Camera Microcomputer 2
- DTC B28AC Stereo Camera ASIC
- DTC B28AD Stereo Camera Image Recognition
- DTC B28AE Internal Stereo Camera Power Supply
- DTC B28AF Stereo Camera Adjustment Incomplete
- DTC B28B1 Stereo Camera Automatic Adjustment
- DTC B28B2 Stereo Camera High Temperature
- DTC B28B3 Stereo Camera Low Temperature
- DTC B28B5 +B Circuit Open
- DTC B28B6 Pre-Collision Off Switch
- DTC B28B7 LDP Off Switch
- DTC B28B8 EyeSight STEERING SWITCH 1
- DTC B28B9 EyeSight STEERING SWITCH 2
- DTC B28BA Steering Angle And Stereo Camera Correlation Misaligned
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.