VSA (Vehicle Stability Assist) System Components

• Component Location Index
• General Troubleshooting Information
  • System Indicator
    • Notes
    • ABS Indicator
    • Brake System Indicator
    • VSA Indicator
    • VSA Activation Indicator
  • Diagnostic Trouble Code (DTC)
  • Self-Diagnosis
  • Kickback
  • Pump Motor
  • Brake Fluid Replacement/Air Bleeding
  • How to Troubleshoot DTCs
  • Intermittent Failures
  • How to Use the HDS (Honda Diagnostic System)
  • How to Retrieve DTCs
  • How to Clear DTCs
• DTC Troubleshooting Index
• Symptom Troubleshooting Index
• System Description
  • VSA Modulator-Control Unit Inputs and Outputs For 36P Connector
  • System Outline
  • ABS Features
    • Anti-Lock Control
    • Main Control
  • EBD Features
  • TCS Features
  • VSA System Features
    • Oversteer Control
    • Understeer Control
  • Brake Assist Features
  • Modulator Unit
  • HSA (Hill Start Assist) Features
• Circuit Diagram
• DTC Troubleshooting
  • DTC 11-13, 13-13, 15-13, 17-13: Right-Front Wheel Speed Sensor Circuit Malfunction; Left-Front Wheel Speed Sensor Circuit Malfunction; Right-Rear Wheel Speed Sensor Circuit Malfunction; Left-Rear Wheel Speed Sensor Circuit Malfunction
  • DTC 11-14, 13-14, 15-14, 17-14: Right-Front Wheel Speed Sensor Power Source Malfunction; Left-Front Wheel Speed Sensor Power Source Malfunction; Right-Rear Wheel Speed Sensor Power Source Malfunction; Left-Rear Wheel Speed Sensor Power Source Malfunction
  • DTC 12-11, 14-11, 16-11, 18-11: Right-Front Wheel Speed Sensor Electrical Noise or Intermittent Interruption; Left-Front Wheel Speed Sensor Electrical Noise or Intermittent Interruption; Right-Rear Wheel Speed Sensor Electrical Noise or Intermittent Interruption; Left-Rear Wheel Speed Sensor Electrical Noise or Intermittent Interruption
  • DTC 12-12, 14-12, 16-12, 18-12: Right-Front Wheel Speed Sensor Short to the Other Sensor Circuit; Left-Front Wheel Speed Sensor Short to the Other Sensor Circuit; Right-Rear Wheel Speed Sensor Short to the Other Sensor Circuit; Left-Rear Wheel Speed Sensor Short to the Other Sensor Circuit
  • DTC 12-21, 14-21, 16-21, 18-21: Right-Front Wheel Speed Sensor Installation Error; Left-Front Wheel Speed Sensor Installation Error; Right-Rear Wheel Speed Sensor Installation Error; Left-Rear Wheel Speed Sensor Installation Error
  • DTC 12-22, 14-22, 16-22, 18-22: Right-Front Wheel Speed Sensor Installation Error (19 mph (30 km/h) or More); Left-Front Wheel Speed Sensor Installation Error (19 mph (30 km/h) or More); Right-Rear Wheel Speed Sensor Installation Error (19 mph (30 km/h) or More); Left-Rear Wheel Speed Sensor Installation Error (19 mph (30 km/h) or More)
  • DTC 12-23, 14-23, 16-23, 18-23: Right-Front Wheel Speed Sensor Installation Error (0 to 9 mph (0 to 15 km/H)); Left-Front Wheel Speed Sensor Installation Error (0 to 9 mph (0 to 15 km/h)); Right-Rear Wheel Speed Sensor Installation Error (0 to 9 mph (0 to 15 km/h)); Left-Rear Wheel Speed Sensor Installation Error (0 to 9 mph (0 to 15 km/h))
  • DTC 21-11, 22-11, 23-11, 24-11: Right-Front Magnetic Encoder (Wheel Bearing) Malfunction (Pulse Missing); Left-Front Magnetic Encoder (Wheel Bearing) Malfunction (Pulse Missing); Right-Rear Magnetic Encoder (Wheel Bearing) Malfunction (Pulse Missing); Left-Rear Magnetic Encoder (Wheel Bearing) Malfunction (Pulse Missing)
  • DTC 25-12, 25-13, 25-21: Yaw Rate Sensor Internal Circuit Malfunction (Open, Short); Yaw Rate Sensor Internal Circuit Malfunction; Yaw Rate Sensor Neutral Position Malfunction
  • DTC 25-17, 25-18: Yaw Rate-Lateral/Longitudinal Acceleration Sensor Power Source Voltage Malfunction; Yaw Rate-Lateral/Longitudinal Acceleration Sensor Internal Circuit Malfunction
  • DTC 25-22: Yaw Rate Sensor Stuck
  • DTC 25-23: Yaw Rate Sensor Circuit Intermittent Interruption
  • DTC 25-24, 25-25, 26-24, 26-25, 28-21, 28-22, 28-24, 28-25: Yaw Rate Sensor Gain Low; Yaw Rate Sensor Gain High; Lateral Acceleration Sensor Gain Low; Lateral Acceleration Sensor Gain High; Longitudinal Acceleration Sensor Neutral Position Malfunction; Longitudinal Acceleration Sensor Stuck; Longitudinal Acceleration Sensor Gain Low; Longitudinal Acceleration Sensor Gain High
  • DTC 26-12, 26-13, 26-21, 26-23, 28-12, 28-13, 28-23: Lateral Acceleration Sensor Internal Circuit Malfunction (Open, Short); Lateral Acceleration Sensor Internal Circuit Malfunction; Lateral Acceleration Sensor Neutral Position Malfunction; Lateral Acceleration Sensor Circuit Intermittent Interruption; Longitudinal Acceleration Sensor Internal Circuit Malfunction (Open, Short); Longitudinal Acceleration Sensor Communication Error; Longitudinal Acceleration Sensor Circuit Intermittent Interruption
  • DTC 26-22: Lateral Acceleration Sensor Stuck
  • DTC 27-11, 27-26: Steering Angle Sensor DIAG Signal Error (Initial); Steering Angle Sensor DIAG Signal Error (Main)
  • DTC 27-21, 27-22: Steering Angle Sensor Stuck Neutral Position; Steering Angle Sensor Stuck Offset Position
  • DTC 27-23: Steering Angle Sensor Counter Malfunction
  • DTC 27-24: Steering Angle Sensor Exchange Malfunction
  • DTC 31-xx*, 32-xx*, 33-xx*, 34-xx*, 35-xx*, 36-xx*, 37-xx*, 38-xx*: ABS Right-Front Inlet Solenoid Valve Malfunction; ABS Right-Front Outlet Solenoid Valve Malfunction; ABS Left-Front Inlet Solenoid Valve Malfunction; ABS Left-Front Outlet Solenoid Valve Malfunction; ABS Right-Rear Inlet Solenoid Valve Malfunction; ABS Right-Rear Outlet Solenoid Valve Malfunction; ABS Left-Rear Inlet Solenoid Valve Malfunction; ABS Left-Rear Outlet Solenoid Valve Malfunction
  • DTC 41-21, 42-21, 43-21, 44-21: Right-Front Wheel Lock; Left-Front Wheel Lock; Right-Rear Wheel Lock; Left-Rear Wheel Lock
  • DTC 51-11, 51-13: Motor Lock; Motor Drive Circuit Malfunction
  • DTC 51-12: Motor Drive Circuit Malfunction
  • DTC 52-12: Motor Stuck OFF
  • DTC 53-01, 53-12: Motor Relay Stuck ON 1; Motor Relay Stuck ON 2
  • DTC 54-03, 54-04, 54-21: Fail-Safe Relay 1 Stuck ON; Fail-Safe Relay 1 Stuck OFF (Initial); Fail-Safe Relay 1 Stuck OFF (Main)
  • DTC 56-01, 56-02, 56-11: Initial VIG FET Stuck OFF (Initial); Initial VIG FET Stuck ON; VIG FET Stuck OFF (Main)
  • DTC 61-01, 61-21, 61-22, 61-23: VSA Modulator-Control Unit Initial IG Low Voltage; VSA Modulator-Control Unit Power Source Low Voltage 1; VSA Modulator-Control Unit Power Source Low Voltage 2; VSA Modulator-Control Unit Power Source Low Voltage 3
  • DTC 62-21: VSA Modulator-Control Unit IG High Voltage
  • DTC 64-11: Steering Angle Sensor Power Circuit Low Voltage
  • DTC 64-12: Steering Angle Sensor Power Circuit High Voltage
  • DTC 65-21: Brake Fluid Level Stuck ON
  • DTC 66-11, 66-14, 66-16, 66-17, 66-18, 66-19: Pressure Sensor (Inside of VSA Modulator-Control Unit) Malfunction
  • DTC 66-12: Pressure Sensor (Inside of VSA Modulator-Control Unit) Malfunction
  • DTC 68-21: Brake Pedal Position Switch Stuck OFF
  • DTC 68-22: Brake Pedal Position Switch Stuck ON
  • DTC 71-21, 71-22, 71-23, 71-24, 71-25, 71-26, 71-27, 71-28, 71-29, 71-2A, 71-2B, 71-2C: Right-Front or Left-Rear Different Diameter Tire Malfunction; Left-Front or Right-Rear Different Diameter Tire Malfunction; Right-Front and Right-Rear Different Diameter Tire Malfunction; Left-Front and Left-Rear Different Diameter Tire Malfunction; Right-Front and Left-Front Different Diameter Tire Malfunction; Right-Rear and Left-Rear Different Diameter Tire Malfunction; Right-Front or Left-Rear Different Diameter Tire Malfunction; Left-Front or Right-Rear Different Diameter Tire Malfunction; Right-Front and Right-Rear Different Diameter Tire Malfunction; Left-Front and Left-Rear Different Diameter Tire Malfunction; Right-Front and Left-Front Different Diameter Tire Malfunction; Right-Rear and Left-Rear Different Diameter Tire Malfunction
  • DTC 81-xx*: Central Processing Unit (CPU) Internal Circuit Malfunction
  • DTC 81-07: Central Processing Unit (CPU) Internal Circuit Malfunction
  • DTC 81-11, 81-52, 81-54, 81-56, 81-58: Central Processing Unit (CPU) Internal Circuit Malfunction
  • DTC 81-51, 81-53, 81-55, 81-57: Central Processing Unit (CPU) Internal Circuit Malfunction
  • DTC 81-3D, 81-3E, 81-59: Central Processing Unit (CPU) Internal Circuit Malfunction
  • DTC 83-13, 83-14: PCM Communication Error (Engine Malfunction); PCM Communication Error (A/T Malfunction)
  • DTC 84-21: VSA Sensor Neutral Position Not Writing
  • DTC 86-01: F-CAN Bus-Off Malfunction
  • DTC 86-11, 86-21, 86-22, 86-23, 86-24, 86-25, 86-41: F-CAN Communication With PCM Malfunction; F-CAN Communication With EAT Malfunction
  • DTC 86-31: F-CAN Communication With Gauge Control Module Malfunction
  • DTC 86-51: F-CAN Communication With VTM-4 Malfunction
  • DTC 86-71: F-CAN Communication With Yaw Rate-Lateral/Longitudinal Acceleration Sensor Malfunction
  • DTC 107-22: Central Processing Unit (CPU) Internal Circuit Malfunction
  • DTC 108-21: Steering Angle Sensor Malfunction
  • DTC 121-xx*, 122-xx*, 123-xx*, 124-xx*: VSA Solenoid Valve Malfunction
• Symptom Troubleshooting
  • VSA Activation Indicator Does Not Go Off, and No DTCs Are Stored
  • ABS Indicator, Brake System Indicator and VSA Indicator Do Not Go Off
• Steering Angle Sensor Replacement
• Yaw Rate-Lateral/Longitudinal Acceleration Sensor Replacement
• VSA Sensor Neutral Position Memorization
• VSA Off Switch Test
• VSA Modulator-Control Unit Update
  • Special Tools Required
• VSA Modulator-Control Unit Removal and Installation
  • Notes
  • Removal
  • Installation
• Wheel Speed Sensor Replacement
  • Front
  • Rear