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 MANUALSHONDA2020CIVIC SI, 4D SEDANREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLVSA SYSTEM - TESTING & TROUBLESHOOTINGDTC TROUBLESHOOTING INDEXVSA SYSTEM DTC TROUBLESHOOTING INDEX
2020 Honda Civic Si, 4D Sedan
VSA System DTC Troubleshooting Index
2020 Honda Civic Si, 4D SedanSECTION VSA System DTC Troubleshooting Index
| DTC | Detection Item | |
|---|---|---|
| B0050 | -F0 | Driver's Seat Belt Buckle Switch Malfunction |
| C0010 | -49 | Inlet Solenoid (Left Front) Circuit Failure |
| C0011 | -49 | Outlet Solenoid (Left Front) Circuit Failure |
| C0014 | -49 | Inlet Solenoid (Right Front) Circuit Failure |
| C0015 | -49 | Outlet Solenoid (Right Front) Circuit Failure |
| C0018 | -49 | Inlet Solenoid (Left Rear) Circuit Failure |
| C0019 | -49 | Outlet Solenoid (Left Rear) Circuit Failure |
| C001C | -49 | Inlet Solenoid (Right Rear) Circuit Failure |
| C001D | -49 | Outlet Solenoid (Right Rear) Circuit Failure |
| C0023 | -12 | Brake Diag Circuit ON Failure |
| -14 | Brake Diag Circuit OFF Failure | |
| C0030 | -38 | Magnetic Encoder (Left Front) Failure (Pulse Missing) |
| C0031 | -14 | Left Front Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open) |
| -62 | Left Front Wheel Speed Sensor Signal Compare Failure | |
| C0033 | -38 | Magnetic Encoder (Right Front) Failure (Pulse Missing) |
| C0034 | -14 | Right Front Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open) |
| -62 | Right Front Wheel Speed Sensor Signal Compare Failure | |
| C0036 | -38 | Magnetic Encoder (Left Rear) Failure (Pulse Missing) |
| C0037 | -14 | Left Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open) |
| -62 | Left Rear Wheel Speed Sensor Signal Compare Failure | |
| C0039 | -38 | Magnetic Encoder (Right Rear) Failure (Pulse Missing) |
| C003A | -14 | Right Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open) |
| -62 | Right Rear Wheel Speed Sensor Signal Compare Failure | |
| C0040 | -62 | Brake Lamp Switch Failure (Stuck) |
| C0044 | -49 | Master Cylinder Pressure Sensor Failure (Internal Circuit Failure) |
| C0049 | -7B | Brake Fluid Level Too Low |
| C0051 | -54 | Steering Angle Neutral Position Learning Incomplete |
| -62 | Steering Angle Sensor Failure (Signal Compare Failure) | |
| -96 | Steering Angle Sensor Failure (Sensor Detects Internal Failure) | |
| C0061 | -62 | Lateral Acceleration Sensor Failure (Signal Compare Failure) |
| -F0 | Lateral Acceleration Sensor Malfunction | |
| C0062 | -62 | Longitudinal Acceleration Sensor Failure (Signal Compare Failure) |
| -F0 | Longitudinal Acceleration Sensor Malfunction | |
| C0063 | -62 | Yaw Rate Sensor Failure (Signal Compare Failure) |
| -97 | SRS Sensor Unit Supply Voltage Abnormally | |
| -F0 | Yaw Rate Sensor Malfunction | |
| C0072 | -00 | Brake Pad Temperature too High |
| C1000 | -94 | ABS/VSA Activation Time Too Long |
| C1014 | 1C | Left Front Brake Caliper Pressure Sensor Failure (Internal Circuit Failure) |
| C1015 | 1C | Right Front Brake Caliper Pressure Sensor Failure (Internal Circuit Failure) |
| C1020 | -49 | VSA Master Cut Valve Failure (Unexpected Operation) |
| C1021 | -49 | VSA Suction Valve Failure (Unexpected Operation) |
| C1022 | -14 | Power Source Failure for Pump Motor |
| DTC | Detection Item | |
|---|---|---|
| C1100 | -48 | Electric Parking Brake Abnormal Operation Monitoring |
| -53 | Electric Parking Brake System in Maintenance Mode | |
| -54 | Piston Position Not Learned | |
| -92 | Decelerating Abnormally Detection | |
| -94 *1 | Brake Fluid Leakage | |
| -98 | Electric Parking Brake Continuous Operations Detected | |
| C1110 | -11 | Left Rear Electric Parking Brake Actuator Circuit Short to Ground |
| -13 | Left Rear Electric Parking Brake Actuator Circuit Open | |
| -79 | Left Side Electric Parking Brake Doesn't Work Correctly | |
| -96 | Left Side Electric Parking Brake Actuator Malfunction | |
| C1111 | -11 | Right Rear Electric Parking Brake Actuator Circuit Short to Ground |
| -13 | Right Rear Electric Parking Brake Actuator Circuit Open | |
| -79 | Right Side Electric Parking Brake Doesn't Work Correctly | |
| -96 | Right Side Electric Parking Brake Actuator Malfunction | |
| C1120 | -14 | Electric Parking Brake Switch Circuit Malfunction |
| -96 | Electric Parking Brake Switch Malfunction | |
| C1130 | -54 | Clutch Stroke Sensor Not Calibrated |
| -62 | Clutch Pedal Stroke Sensor CPS1/CPS2 Incorrect Voltage Correlation | |
| -76 | Clutch Pedal Stroke Sensor Mount Position Error | |
| C1131 | -14 | Clutch Pedal Stroke Sensor CPS1/CPS2 Open or Short |
| C1270 | -11 | Automatic Brake Hold Switch Signal Circuit Short |
| -15 | Automatic Brake Hold Switch Signal Circuit Open | |
| C1C20 | -62 | Neutral Sensor Failure |
| C1C21 | -62 | Reverse Information Failure (Stuck) |
| C1C22 | -62 | Neutral Sensor Failure |
| U0029 | -00 *2 | CAN Communication Failure (Bus OFF) |
| -00 *3 | ||
| U0100 | -00 *2 | CAN Communication Failure with ECM/ISU |
| -00 *3 | ||
| U0101 | -00 *2 | CAN Communication Failure with TCM |
| -00 *3 | ||
| U0104 | -00 *3 | CAN Communication Failure with ACC |
| U0123 | -00 *2 | CAN Communication Failure with Yaw-Rate/Acceleration Sensor |
| -00 *3 | ||
| U0126 | -00 *2 | CAN Communication Failure with Absolute Steering Wheel Angle Sensor |
| -00 *3 | ||
| U0151 | -00 *2 | CAN Communication Failure with SRS |
| -00 *3 | ||
| U0155 | -00 *2 | CAN Communication Failure with Meter |
| -00 *3 | ||
| U0401 | -68 | ECM Failure |
| U0402 | -68 | TCM Failure |
| U0416 | -68 | VSA System Malfunction |
| DTC | Detection Item | |
|---|---|---|
| U3000 | -49 | ECU Internal Circuit Failure |
| -51 | ECU Software Update Failure | |
| -54 | Sensor Calibration is Not Completed | |
| U3003 | -16 | Electric Parking Brake Control Unit Power Source Circuit (+B) Low Voltage |
| -17 | Electric Parking Brake Control Unit Power Source Circuit (+B) High Voltage | |
| -68 | Electric Parking Brake Control Unit Internal Circuit Malfunction (Power Self-Holding Circuit) | |
| U3006 | -13 | IG1 Circuit Open |
| -16 | Power Source Failure for ECU (Low Voltage) | |
| -17 | Power Source Failure for ECU (High Voltage) | |
*1:'16-18
*2: Without ACC
*3: With ACC
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.