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 DIAGNOSISBRAKESTRACTION CONTROLBRAKE CONTROL SYSTEM (DIAGNOSTICS) (EXCEPT HEV)
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT Trans
Brake Control System (Diagnostics) (Except HEV)
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT TransSECTION Brake Control System (Diagnostics) (Except HEV)
- Basic Diagnostic Procedure
- Check List For Interview
- General Description
- Electrical Component Location
- Control Module I/O Signal
- Inspection Mode
- Warning Light Illumination Pattern
- Inspection
- EBD Warning Light, Abs Warning, VDC Off Indicator Light, VDC Warning Light And VDC Indicator Light Do Not Come On
- Hill Start Assist Warning Light Does Not Come On
- Abs Warning Light Does Not Go Off
- VDC Warning Light And VDC Indicator Light Do Not Go Off
- Hill Start Assist Warning Light Does Not Go Off
- VDC Off Indicator Light Does Not Go Off
- Brake Warning Light Does Not Go Off
- Diagnostic Procedure For Subaru Select Monitor Communication
- Data Monitor
- Freeze Frame Data
- Work Support
- Diagnostic Trouble Code (DTC)
- Diagnostic Procedure With Diagnostic Trouble Code (DTC)
- DTC C1211: Front Right Abs Sensor Circuit
- DTC C1221: Front Left Abs Sensor Circuit
- DTC C1231: Rear Right Abs Sensor Circuit
- DTC C1241: Rear Left Abs Sensor Circuit
- DTC C1212: Front Right Abs Sensor Signal
- DTC C1222: Front Left Abs Sensor Signal
- DTC C1232: Rear Right Abs Sensor Signal
- DTC C1242: Rear Left Abs Sensor Signal
- DTC C1311: Fr Hold Valve
- DTC C1312: Fr Pressure Reducing Valve
- DTC C1321: Fl Hold Valve
- DTC C1322: Fl Pressure Reducing Valve
- DTC C1331: RR Hold Valve
- DTC C1332: RR Pressure Reducing Valve
- DTC C1341: RL Hold Valve
- DTC C1342: RL Pressure Reducing Valve
- DTC C1351: Normal Opening Valve 1
- DTC C1352: Normal Opening Valve 2
- DTC C1361: Normal Closing Valve 1
- DTC C1362: Normal Closing Valve 2
- DTC C1411: Electrical Control Module
- DTC C1412: Selected Parameter
- DTC C1413: Power Supply Voltage
- DTC C1422: VDC Interruption For Engine Convenience
- DTC C1423: Different Ecu Specifications
- DTC C1424: ECM
- DTC C1431: At
- DTC C1432: Different Ecu Specifications
- DTC C1511: Valve Relay
- DTC C1521: Motor Relay
- DTC C1531: BLS Off Stuck
- DTC C1532: BLS On Stuck
- DTC C1571: Brake Lamp Relay Off Stuck
- DTC C1581: Brake Boost Negative Pressure Abnormal
- DTC C1711: Steering Angle Sensor
- DTC C1721: Yaw Rate Sensor
- DTC C1732: Lateral G Sensor
- DTC C1733: Longitudinal G Sensor
- DTC C1741: Pressure Sensor
- DTC C1742: Wheel Cylinder Pressure Sensor
- DTC C1751: Brake Boost Gauge Sensor
- DTC C1811: System
- DTC C1821: Brake Temperature Abnormal
- DTC U0073: Control Module Communication Bus Off
- DTC U0100: Lost Communication With ECM/Pcm "A"
- DTC U0101: Lost Communication With TCM
- DTC U0126: Lost Communication With Steering Angle Sensor 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 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 U1120: Lost Communication With AUTOSTART Stop Control Module
- DTC U1235: LOST COMMUNICATION WITH EyeSight
- DTC U1433: INVALID DATA RECEIVED FROM EyeSight
- DTC U1469: Invalid Data Received From AUTOSTART Stop Control Module
- General Diagnostic Table
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.