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 MANUALSSUBARU2014IMPREZA SPORT LIMITEDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESBODY CONTROL SYSTEM (DIAGNOSTICS)
2014 Subaru Impreza Sport Limited
Body Control System (Diagnostics)
2014 Subaru Impreza Sport LimitedSECTION Body Control System (Diagnostics)
- Basic Diagnostic Procedure
- Check List for Interview
- General Description
- Electrical Component Location
- Control Module I/O Signal
- Read Diagnostic Trouble Code (DTC)
- Clear Memory Mode
- Read Current Data
- User Customizing
- Registration Body Integrated Unit
- Function Check
- List of Diagnostic Trouble Code (DTC)
- Diagnostic Procedure with Diagnostic Trouble Code (DTC)
- DTC B1100: INTEG. Unit System Error
- DTC B1101: Batt P/Supply Malfunction Cont
- DTC B1102: Batt P/Supply Malfunction Backup
- DTC B1103: Ignition Power Failure
- DTC B1104: Acc Power Failure
- DTC B1105: Key Interlock Circuit Abnormal
- DTC B1106: Shift Lock Circuit Failure
- DTC B1401: M Collation NG
- DTC B1402: Immobilizer Key Collation NG
- DTC B1405: SCU Collation NG
- DTC B1406: SCU_EEPROM_NG
- DTC B1407: M Communication Abnormal
- DTC B1408: Meter EEPROM Abnormal
- DTC B1409: SCU Communication Abnormal
- DTC B1410: Transponder Communication Abnormal
- DTC B1411: Immobilizer Antenna Abnormal
- DTC B1500: Keyless UART Com. Malfunction
- General Diagnostic Table
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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.