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 MANUALSACURA2018TLX BASE, 2.4L ENGREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESTRACTION CONTROLVSA SYSTEM - DIAGNOSTICS (1 OF 2)
2018 Acura TLX Base, 2.4L Eng
VSA System - Diagnostics (1 Of 2)
2018 Acura TLX Base, 2.4L EngSECTION VSA System - Diagnostics (1 Of 2)
- VSA DTC Advanced Diagnostics
- DTC Advanced Diagnostics: VSA related DTCs (2015-17)
- Notes
- DTC 11-13: Right-Front Wheel Speed Sensor Circuit Malfunction
- DTC 12-11: Right-Front Wheel Speed Sensor Electrical Noise or Intermittent Interruption
- DTC 12-14: Right-Front Wheel Speed Sensor Installation Error
- DTC 12-15: Right-Front Wheel Speed Sensor Installation Error
- DTC 13-13: Left-Front Wheel Speed Sensor Circuit Malfunction
- DTC 14-11: Left-Front Wheel Speed Sensor Electrical Noise or Intermittent Interruption
- DTC 14-14: Left-Front Wheel Speed Sensor Installation Error
- DTC 14-15: Left-Front Wheel Speed Sensor Installation Error
- DTC 15-13: Right-Rear Wheel Speed Sensor Circuit Malfunction
- DTC 16-11: Right-Rear Wheel Speed Sensor Electrical Noise or Intermittent Interruption
- DTC 16-14: Right-Rear Wheel Speed Sensor Installation Error
- DTC 16-15: Right-Rear Wheel Speed Sensor Installation Error
- DTC 17-13: Left-Rear Wheel Speed Sensor Circuit Malfunction
- DTC 18-11: Left-Rear Wheel Speed Sensor Electrical Noise or Intermittent Interruption
- DTC 18-14: Left-Rear Wheel Speed Sensor Installation Error
- DTC 18-15: Left-Rear Wheel Speed Sensor Installation Error
- DTC 25-21: Yaw Rate Sensor (Inside of Modulator-Control Unit) Output Signal Malfunction
- DTC 26-21: Lateral Acceleration Sensor (Inside of Modulator-Control Unit) Output Signal Malfunction
- DTC 27-20: Steering Angle Sensor Internal Circuit Malfunction
- DTC 27-21: Steering Angle Sensor Output Signal Malfunction
- DTC 28-21: Longitudinal Acceleration Sensor (Inside of Modulator-Control Unit) Output Signal Malfunction
- DTC 28-22: Longitudinal Acceleration Sensor (Inside of Modulator-Control Unit) Stuck
- DTC 31-11: ABS Solenoid Valve Malfunction
- DTC 32-11: ABS Solenoid Valve Malfunction
- DTC 33-11: ABS Solenoid Valve Malfunction
- DTC 34-11: ABS Solenoid Valve Malfunction
- DTC 35-11: ABS Solenoid Valve Malfunction
- DTC 36-11: ABS Solenoid Valve Malfunction
- DTC 37-11: ABS Solenoid Valve Malfunction
- DTC 38-11: ABS Solenoid Valve Malfunction
- DTC 51-12: Motor Power Source Circuit Malfunction
- DTC 51-13: Motor Drive Circuit Malfunction
- DTC 51-80: Motor Malfunction
- DTC 52-11: Motor Stuck OFF
- DTC 53-11: Motor Relay Stuck ON
- DTC 54-13: Fail-Safe Relay Power Source Malfunction
- DTC 54-14: Fail-Safe Relay Drive Circuit Malfunction
- DTC 59-1: Brake Diag Circuit ON Failure
- DTC 61-12: Modulator-Control Unit Power Source Circuit (IG) Low Voltage
- DTC 62-11: Modulator-Control Unit Power Source Circuit (IG) High Voltage
- DTC 65-11: Brake Fluid Level Switch Circuit Malfunction
- DTC 66-13: Pressure Sensor Malfunction
- DTC 66-14: Pressure Sensor Sensitivity Malfunction
- DTC 68-12: Brake Pedal Position Switch Stuck ON
- DTC 68-13: Brake Pedal Position Switch Circuit Malfunction
- DTC 69-1: Brake Diag Circuit OFF Failure
- DTC 71-80: Abnormal Slip Malfunction
- DTC 71-81: Right-Front Wheel Abnormal Slip Malfunction
- DTC 71-82: Left-Front Wheel Abnormal Slip Malfunction
- DTC 71-83: Right-Rear Wheel Abnormal Slip Malfunction
- DTC 71-84: Left-Rear Wheel Abnormal Slip Malfunction
- DTC 81-11: Modulator-Control Unit Internal Circuit Malfunction
- DTC 81-19: Yaw Rate Sensor (Inside of Modulator-Control Unit) Internal Circuit Malfunction
- DTC 81-20: Acceleration Sensor (Inside of Modulator-Control Unit) Internal Circuit Malfunction
- DTC 83-11: ECM/PCM (PGM-FI) Malfunction
- DTC 83-14: Electric Parking Brake System Malfunction
- DTC 83-15: Precision All Wheel Steer System Malfunction (Rear Wheel Angle Valid)
- DTC 83-16: Shift Position Signal Malfunction
- DTC 85-12: Precision All Wheel Steer System Malfunction (Rear Wheel Angle Invalid)
- DTC 86-11: F-CAN Bus-Off Malfunction
- DTC 86-12: F-CAN Communication With PCM (Engine) Malfunction
- DTC 86-13: F-CAN Communication With PCM (A/T) Malfunction
- DTC 86-14: F-CAN Communication With Gauge Control Module Malfunction
- DTC 86-16: F-CAN Communication With VTM-4 Control Unit/F-CAN Communication With SH-AWD Control Unit
- DTC 86-17: F-CAN Communication With ACC Unit Malfunction
- DTC 86-19: F-CAN Communication With Steering Angle Sensor Malfunction
- DTC 86-21: F-CAN Communication With Electric Parking Brake Control Unit Malfunction
- DTC 86-22: F-CAN Communication With SRS Unit Malfunction
- DTC 86-23: F-CAN Communication With Precision All Wheel Steer Control Unit Malfunction
- DTC 86-51: F-CAN Bus-Off Malfunction
- DTC 87-1: Wheel Speed Sensor Circuit Short to Power
- DTC 88-11: Wheel Speed Sensor Noise Malfunction
- DTC 88-12: ABS Activation Time Too Long
- DTC 91-1: VSA Activation Time Too Long
- DTC 97-11: Automatic Brake Hold Switch Signal Circuit Open
- DTC 97-12: Automatic Brake Hold Switch Signal Circuit Short
- DTC 98-11: Seat Belt Buckle Switch Malfunction
- DTC 105-11: Solenoid Valve Overheating
- DTC 121-11: VSA Solenoid Valve Malfunction
- DTC 122-11: VSA Solenoid Valve Malfunction
- DTC 123-11: VSA Solenoid Valve Malfunction
- DTC 124-11: VSA Solenoid Valve Malfunction
- DTC 141-13: Right-Front Brake Caliper Pressure Sensor Internal Circuit Malfunction
- DTC 141-14: Right-Front Brake Caliper Pressure Sensor Malfunction
- DTC 142-13: Left-Front Brake Caliper Pressure Sensor Internal Circuit Malfunction
- DTC 142-14: Left-Front Brake Caliper Pressure Sensor Malfunction
- DTC 158-1: ECU Software Update Failure
- DTC Advanced Diagnostics: VSA related DTCs (2018-19)
- Notes
- DTC B0050-F0: Driver's Seat Belt Buckle Switch Malfunction
- DTC C0010-49: Inlet Solenoid (Left Front) Circuit Failure
- DTC C0011-49: Outlet Solenoid (Left Front) Circuit Failure
- DTC C0014-49: Inlet Solenoid (Right Front) Circuit Failure
- DTC C0015-49: Outlet Solenoid (Right Front) Circuit Failure
- DTC C0018-49: Inlet Solenoid (Left Rear) Circuit Failure
- DTC C0019-49: Outlet Solenoid (Left Rear) Circuit Failure
- DTC C001C-49: Inlet Solenoid (Right Rear) Circuit Failure
- DTC C001D-49: Outlet Solenoid (Right Rear) Circuit Failure
- DTC C0020-12: Pump Motor Circuit Failure (Stuck ON)
- DTC C0020-14: Pump Motor Circuit Failure (Stuck OFF)
- DTC C0023-12: Brake Diag Circuit ON Failure
- DTC C0023-14: Brake Diag Circuit OFF Failure
- DTC C0031-14: Left Front Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open)
- DTC C0031-3A: Wheel Speed Sensor (Left Front) Signal Failure (Signal Frequency is Too High)
- DTC C0031-62: Left Front Wheel Speed Sensor Signal Compare Failure
- DTC C0034-14: Right-Front Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open)
- DTC C0034-3A: Wheel Speed Sensor (Right Front) Signal Failure (Signal Frequency is Too High)
- DTC C0034-62: Right Front Wheel Speed Sensor Signal Compare Failure
- DTC C0037-14: Left Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open)
- DTC C0037-3A: Wheel Speed Sensor (Left Rear) Signal Failure (Signal Frequency is Too High)
- DTC C0037-62: Left Rear Wheel Speed Sensor Signal Compare Failure
- DTC C003A-14: Right Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open)
- DTC C003A-3A: Wheel Speed Sensor (Right Rear) Signal Failure (Signal Frequency is Too High)
- DTC C003A-62: Right Rear Wheel Speed Sensor Signal Compare Failure
- DTC C0040-12: Brake Light Switch Failure (Stuck ON)
- DTC C0040-16: Plausibility BLS vs. Pressure Sensor
- DTC C0044-49: Master Cylinder Pressure Sensor Failure (Internal Circuit Failure)
- DTC C0044-62: Master Cylinder Pressure Sensor Failure (Signal Stuck)
- DTC C0049-7B: Brake Fluid Level Too Low
- DTC C0051-62: Steering Angle Sensor Failure (Signal Compare Failure)
- DTC C0051-96: Steering Angle Sensor Failure (Sensor Detects Internal Failure)
- DTC C0061-49: Acceleration Sensor Failure (Internal Circuit Failure)
- DTC C0061-62: Lateral Acceleration Sensor Failure (Signal Compare Failure)
- DTC C0062-62: Longitudinal Acceleration Sensor Failure (Signal Compare Failure)
- DTC C0063-49: Yaw Rate Sensor Failure (Internal Circuit Failure)
- DTC C0063-62: Yaw Rate Sensor Failure (Signal Compare Failure)
- DTC C1000-94: ABS/VSA Activation Time Too Long
- DTC C1014-1C: Left Front Brake Caliper Pressure Sensor Failure (Internal Circuit Failure)
- DTC C1014-62: Left Front Brake Caliper Pressure Sensor Failure (Incorrect Gain)
- DTC C1015-1C: Right Front Brake Caliper Pressure Sensor Failure (Internal Circuit Failure)
- DTC C1015-62: Right Front Brake Caliper Pressure Sensor Failure (Incorrect Gain)
- DTC C1020-49: VSA Master Cut Valve Failure (Unexpected Operation)
- DTC C1021-49: VSA Suction Valve Failure (Unexpected Operation)
- DTC C1022-14: Power Source Failure for Pump Motor
- DTC C1040-00: Different Diameter Tire is Detected
- DTC C1041-00: Right Front Wheel Abnormal Slip Detection
- DTC C1042-00: Left Front Wheel Abnormal Slip Detection
- DTC C1043-00: Right Rear Wheel Abnormal Slip Detection
- DTC C1044-00: Left Rear Wheel Abnormal Slip Detection
- DTC C1270-11: Automatic Brake Hold Switch Signal Circuit Short
- DTC C1270-15: Automatic Brake Hold Switch Signal Circuit Open
- DTC C3000-54: Sensor Calibration is not Completed
- DTC U0029-00: CAN Communication Failure (Bus OFF Ch 1)
- DTC U0047-00: CAN Communication Failure (Bus OFF Ch 2)
- DTC U0100-00: CAN Communication Failure with ECM/ISU
- DTC U0101-00: CAN Communication Failure with PCM/TCM
- DTC U0104-00: CAN Communication Failure with Driving Support System Control Unit
- DTC U0114-00: CAN Communication Failure with SH-AWD
- DTC U0126-00: CAN Communication Failure with Absolute Steering Wheel Angle Sensor
- DTC U0128-00: CAN Communication Failure with Electric Parking Brake
- DTC U0151-00: CAN Communication Failure with SRS
- DTC U0155-00: CAN Communication Failure with METER
- DTC U0401-68: ECM Failure
- DTC U0402-68: TCM Failure
- DTC U0417-68: Electric Parking Brake Failure
- DTC U129D-00: Communication Failure with Precision All Wheel Steer Control Unit Malfunction
- DTC U1482-68: Precision All Wheel Steer System Malfunction
- DTC U3000-49: ECU Internal Circuit Failure
- DTC U3000-51: ECU Software Update Failure
- DTC U3006-16: Power Source Failure for ECU (Low Voltage)
- DTC U3006-17: Power Source Failure for ECU (High Voltage)
- DTC Advanced Diagnostics: VSA related DTCs (2015-17)
- VSA DTC Troubleshooting (2018-19)
- Notes
- DTC B0050-F0: Driver's Seat Belt Buckle Switch Malfunction (VSA Control Unit) (2018-19)
- DTC C0010-49, C0011-49, C0014-49, C0015-49, C0018-49, C0019-49, C001C-49, C001D-49: Inlet/Outlet Solenoid Circuit Failure (2018-19)
- DTC C0020-12: Pump Motor Circuit Failure (Stuck ON) (2018-19)
- DTC C0020-14, C1022-14: Pump Motor (2018-19)
- DTC C0023-12: Brake Diag Circuit ON Failure (2018-19)
- DTC C0023-14: Brake Diag Circuit OFF Failure (With Auto Idle Stop System) (2018-19)
- DTC C0023-14: Brake Diag Circuit OFF Failure (Without Auto Idle Stop System) (2018-19)
- DTC C0031-14, C0034-14, C0037-14, C003A-14: Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open) (2018-19)
- DTC C0031-3A, C0034-3A, C0037-3A, C003A-3A: Wheel Speed Sensor Signal Failure (Signal Frequency is Too High) (2018-19)
- DTC C0031-62, C0034-62, C0037-62, C003A-62: Wheel Speed Sensor Signal Compare Failure (VSA Control Unit) (2018-19)
- DTC C0040-12: Brake Light Switch Failure (Stuck ON) (2018-19)
- DTC C0040-16: Plausibility BLS vs. Pressure Sensor (With Auto Idle Stop System) (2018-19)
- DTC C0040-16: Plausibility BLS vs. Pressure Sensor (Without Auto Idle Stop System) (2018-19)
- DTC C0044-49: Master Cylinder Pressure Sensor Failure (Internal Circuit Failure) (2018-19)
- DTC C0044-62: Master Cylinder Pressure Sensor Failure (Signal Stuck) (2018-19)
- DTC C0049-7B: Brake Fluid Level Too Low (2018-19)
- DTC C0051-62: Steering Angle Sensor Failure (Signal Compare Failure) (VSA Control Unit) (2018-19)
- DTC C0051-96: Steering Angle Sensor Failure (Sensor Detects Internal Failure) (VSA Control Unit) (2018-19)
- DTC C0061-49, C0063-49: Acceleration/Yaw Rate Sensor Failure (Internal Circuit Failure) (2018-19)
- DTC C0061-62, C0062-62, C0063-62: Sensor Failure (Signal Compare Failure) (VSA Control Unit) (2018-19)
- DTC C1000-94: ABS/VSA Activation Time Too Long (2018-19)
- DTC C1014-1C, C1015-1C: Front Brake Caliper Pressure Sensor Failure (Internal Circuit Failure) (2018-19)
- DTC C1014-62, C1015-62: Front Brake Caliper Pressure Sensor Failure (Incorrect Gain) (2018-19)
- DTC C1020-49, C1021-49: Valve Failure (Unexpected Operation) (2018-19)
- DTC C1040-00: Different Diameter Tire is Detected (VSA Control Unit) (2018-19)
- DTC C1041-00, C1042-00, C1043-00, C1044-00: Wheel Abnormal Slip Detection (2018-19)
- DTC C1270-11: Automatic Brake Hold Switch Signal Circuit Short (2018-19)
- DTC C1270-15: Automatic Brake Hold Switch Signal Circuit Open (2018-19)
- DTC C3000-54: Sensor Calibration is Not Completed (VSA Control Unit) (2018-19)
- DTC U0029-00, U0047-00: CAN Communication Failure (VSA Control Unit) (2018-19)
- DTC U0100-00, U0101-00, U0104-00, U0114-00, U0126-00, U0128-00, U0151-00, U0155-00, U129D-00: CAN Communication Failure (VSA Control Unit) (2018-19)
- DTC U0401-68: ECM Failure (VSA Control Unit) (2018-19)
- DTC U0402-68: TCM Failure (VSA Control Unit) (2018-19)
- DTC U1482-68: Precision All Wheel Steer System Malfunction (VSA Control Unit) (2018-19)
- DTC U3000-49: ECU Internal Circuit Failure (VSA Control Unit) (2018-19)
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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.