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 MANUALSSUBARU2022IMPREZA BASE, 4D SEDAN, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESBODY CONTROL SYSTEM (DIAGNOSTICS)
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT Trans
Body Control System (Diagnostics)
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT TransSECTION Body Control System (Diagnostics)
- Basic Diagnostic Procedure
- Check List For Interview
- General Description
- Electrical Component Location
- Control Module I/O Signal
- Inspection Mode
- Diagnostic Procedure For Subaru Select Monitor Communication
- Data Monitor
- Active Test
- Customize
- Registration Body Integrated Unit
- Diagnostic Trouble Code (DTC)
- Diagnostic Procedure With Diagnostic Trouble Code (DTC)
- DTC B1010: Body Control System (BIU) Malfunction
- DTC B1011: Battery Control Power Supply
- DTC B1012: Battery Backup Power Supply
- DTC B1013: Ignition Power
- DTC B1014: Acc Power
- DTC B1015: Key Interlock Circuit
- DTC B1016: Shift Lock Circuit
- DTC B1017: Collision Detection Signal Input
- DTC B1107: Control Module Communication Sticking
- DTC B1401: Meter Collation
- DTC B1402: Immobilizer Key Collation
- DTC B1407: Met Communication
- DTC B1408: Meter Non-Volatile Memory
- DTC B1410: Transponder Communication
- DTC B1411: Immobilizer Antenna
- DTC U0073: Control Module Communication Bus Off
- DTC U0074: Control Module Communication Bus "Body-Can" 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 U0127: Lost Communication With Tire Pressure Monitor Control Module And/Or Keyless Entry Control Module
- DTC U0128: Lost Communication With Park Brake Control Module
- DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module
- DTC U0164: Lost Communication With HVAC Control Module
- DTC U0167: Lost Communication With Immobilizer Control Module
- DTC U0169: Lost Communication With Sunroof Control Module
- DTC U0222: Lost Communication With Driver's Door Power Window
- DTC U0223: Lost Communication With Passenger's Door Power Window
- DTC U0293: Lost Communication With Hybrid Powertrain Control Module
- DTC U0327: Software Incompatibility With Vehicle Security 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 U0417: Invalid Data Received From Park Brake Control Module
- DTC U0423: Invalid Data Received From Instrument Panel Cluster Control Module
- DTC U0424: Invalid Data Received From HVAC Control Module
- DTC U0426: Invalid Data Received From Immobilizer Control Module
- DTC U0427: Invalid Data Received From Vehicle Security Control Module
- DTC U0430: Invalid Data Received From Tire Pressure Monitor Control Module And/Or Keyless Entry Control Module
- DTC U1235: LOST COMMUNICATION WITH EyeSight
- DTC U128F: Lost Communication With Hybrid Powertrain Control Module C-Can
- DTC U1433: Invalid Data Received From Eyesight
- DTC U1673: Lin Communication Bus Error Body Control Module
- DTC U1674: Lin Communication Bus 2 Error Body Control Module
- DTC U1822: Lost Communication With Master Main Switch
- General Diagnostic Table
- Diagnostics With Phenomenon
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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.