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.
2021 Acura RDX BaseFACTORY OEM SERVICE PROCEDURE
VSA System DTCS
VSA SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) INDENTIFICATION
| 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 |
| C0023-14 Refer to: DTC Troubleshooting: C0023-14 (2019 2020 2021) or DTC Troubleshooting: C0023-14 (2022 2023) |
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) |
| C0031-4A | Left Front Wheel Speed Sensor Incorrect Installed |
| C0031-62 | 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) |
| C0034-4A | Right Front Wheel Speed Sensor Incorrect Installed |
| C0034-62 | 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) |
| C0037-4A | Left Rear Wheel Speed Sensor Incorrect Installed |
| C0037-62 | 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) |
| C003A-4A | Right Rear Wheel Speed Sensor Incorrect Installed |
| C003A-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 |
| C0051-62 | Steering Angle Sensor Failure (Signal Compare Failure) |
| C0051-96 | Steering Angle Sensor Failure (Sensor Detects Internal Failure) |
| C0061-62 | Lateral Acceleration Sensor Failure (Signal Compare Failure) |
| C0061-F0 | Lateral Acceleration Sensor Malfunction |
| C0062-62 | Longitudinal Acceleration Sensor Failure (Signal Compare Failure) |
| C0062-F0 | Longitudinal Acceleration Sensor Malfunction |
| C0063-62 | Yaw Rate Sensor Failure (Signal Compare Failure) |
| C0063-97 | SRS Sensor Unit Supply Voltage Abnormal |
| C0063-F0 | Yaw Rate Sensor Malfunction |
| C0072-00 | Brake Pad Temperature too High |
| C1000-94 | ABS/VSA Activation Time Too Long |
| 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 |
| C1100-48 | Electric Parking Brake Abnormal Operation Monitoring |
| C1100-53 | Electric Parking Brake System in Maintenance Mode |
| C1100-54 | Piston Position Not Learned |
| C1100-92 | Decelerating Abnormally Detection |
| C1100-98 | Electric Parking Brake Continuous Operations Detected |
| C1110-11 | Left Rear Electric Parking Brake Actuator Circuit Short to Ground |
| C1110-13 | Left Rear Electric Parking Brake Actuator Circuit Open |
| C1110-79 | Left Side Electric Parking Brake Doesn't Work Correctly |
| C1110-96 | Left Side Electric Parking Brake Actuator Malfunction |
| C1111-11 | Right Rear Electric Parking Brake Actuator Circuit Short to Ground |
| C1111-13 | Right Rear Electric Parking Brake Actuator Circuit Open |
| C1111-79 | Right Side Electric Parking Brake Doesn't Work Correctly |
| C1111-96 | Right Side Electric Parking Brake Actuator Malfunction |
| C1120-14 | Electric Parking Brake Switch Circuit Malfunction |
| C1120-96 | Electric Parking Brake Switch Malfunction |
| C1270-11 | Automatic Brake Hold Switch Signal Circuit Short |
| C1270-15 | Automatic Brake Hold Switch Signal Circuit Open |
| C1C21-62 | Reverse Information Failure (Stuck) |
| C1C22-62 | Neutral Sensor Failure |
| U0029-00 | CAN Communication Failure (Bus OFF Ch 1) |
| U0100-00 | CAN Communication Failure with ECM/ISU |
| U0101-00 | CAN Communication Failure with PCM/TCM |
| U0104-00 | CAN Communication Failure with Driving Support System Control Unit |
| U0123-00 | CAN Communication Failure with Yaw-Rate/Acceleration Sensor |
| U0126-00 | CAN Communication Failure with Absolute Steering Wheel Angle Sensor |
| U0129-00 | CAN Communication Failure with AHB/ESB/EBB |
| U0151-00 | CAN Communication Failure with SRS |
| U0155-00 | CAN Communication Failure with Meter |
| U0401-68 | (ECM Failure) |
| U0402-68 | (TCM Failure) |
| U0416-68 | VSA System Malfunction |
| U0418-68 | (ESB/EBB Failure) |
| U3000-49 | ECU Internal Circuit Failure |
| U3000-54 | Sensor Calibration is not Completed |
| U3003-16 | Electric Parking Brake Control Unit Power Source Circuit (+B) Low Voltage |
| U3003-17 | Electric Parking Brake Control Unit Power Source Circuit (+B) High Voltage |
| U3003-68 | Electric Parking Brake Control Unit Internal Circuit Malfunction (Power Self-Holding Circuit) |
| U3006-13 | IG1 Circuit Open |
| U3006-16 | Power Source Failure for ECU (Low Voltage) |
| U3006-17 | Power Source Failure for ECU (High Voltage) |
Factory Service Tools
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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.
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