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 MANUALSACURA2018MDX BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESTRACTION CONTROLVSA SYSTEM - TESTING & TROUBLESHOOTING (EXCEPT HYBRID)
2018 Acura MDX Base
VSA System - Testing & Troubleshooting (Except Hybrid)
2018 Acura MDX BaseSECTION VSA System - Testing & Troubleshooting (Except Hybrid)
- Connector View
- Symptom Troubleshooting Index for Viewer
- ABS indicator, brake system indicator (red), VSA indicator, or VSA OFF indicator does not come on at start-up (bulb check) (2014-20)
- ABS indicator, brake system indicator, VSA indicator, or VSA OFF indicator does not come on at start-up (bulb check) (2014-20)
- HDS does not communicate with the VSA modulator-control unit or the vehicle (2014 2015 2016)
- HDS does not communicate with the VSA modulator-control unit or the vehicle (2017 2018 2019 2020)
- VSA OFF indicator does not go off (2014 2015 2016)
- VSA OFF indicator does not go off (2017 2018 2019 2020)
- VSA cannot be turned OFF (2014 2015 2016)
- VSA cannot be turned OFF (2017 2018 2019 2020)
- General Servicing
- Component Location Index
- Description
- VSA System Description - ABS Control
- VSA System Description - Agile Handling Assist Control
- VSA System Description - Automatic Brake Hold (2017 2018 2019 2020)
- VSA System Description - Brake Assist Control
- VSA System Description - EBD Control
- VSA System Description - Engine Drag Torque Control
- VSA System Description - Hill Start Assist Control
- VSA System Description - Overview (2014 2015)
- VSA System Description - Overview (2016)
- VSA System Description - Overview (2017 2018 2019 2020)
- VSA System Description - Parking Cooperation Assist (2017 2018 2019 2020)
- VSA System Description - Starting Assist Brake Function (2014 2015 2016 2017 2018 2019 2020)
- VSA System Description - Steering Angle Sensor
- VSA System Description - System Diagram (2014 2015)
- VSA System Description - System Diagram (2016)
- VSA System Description - System Diagram (2017 2018 2019 2020)
- VSA System Description - TCS Control
- VSA System Description - Trailer Stability Assist Control
- VSA System Description - VSA Control
- VSA System Description - VSA Modulator
- VSA System Description - VSA OFF MODE
- VSA System Description - Wheel Speed Sensor
- VSA System Description - Yaw Rate-Acceleration Sensor
- Rewrite
- General Information
- How to Information
- How to Troubleshoot the VSA System (2014 2015 2016)
- System Indicator
- ABS Indicator
- Brake System Indicator (Red)
- VSA Indicator
- VSA OFF Indicator
- Brake System Indicator (Amber)
- Diagnostic Trouble Code (DTC)
- Self-Diagnosis
- Kickback
- Pump Motor
- Hydraulic Brake Booster
- 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
- How to Troubleshoot the VSA System (2014 2015 2016)
- Symptom Troubleshooting Index
- Circuit Diagram
- VSA System Circuit Diagram (2014 2015)
- VSA System Circuit Diagram (With CAN Gateway (Without Auto Idle Stop System)) (2016)
- VSA System Circuit Diagram (Without CAN Gateway) (2016)
- VSA System Circuit Diagram (With CAN Gateway (With Auto Idle Stop System)) (2016)
- VSA System Circuit Diagram (With CAN Gateway (Without Auto Idle Stop System)) (2017 2018)
- VSA System Circuit Diagram (Without CAN Gateway) (2017 2018)
- VSA System Circuit Diagram (With CAN Gateway (With Auto Idle Stop System)) (2017 2018)
- VSA System Circuit Diagram (With CAN Gateway (Without Auto Idle Stop System)) (2019 2020)
- VSA System Circuit Diagram (With CAN Gateway (With Auto Idle Stop System)) (2019 2020)
- DTC Troubleshooting Index
- VSA System Symptom Troubleshooting
- ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off (2014 2015)
- ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off (With CAN Gateway (Without Auto Idle Stop System)) (2016)
- ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off (With CAN Gateway (With Auto Idle Stop System)) (2016)
- ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off (Without CAN Gateway) (2016)
- ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off (With CAN Gateway (Without Auto Idle Stop System)) (2017 2018)
- ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off (Without CAN Gateway) (2017 2018)
- ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off (With CAN Gateway (With Auto Idle Stop System)) (2017 2018)
- ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off (With CAN Gateway (Without Auto Idle Stop System)) (2019 2020)
- ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off (With CAN Gateway (With Auto Idle Stop System)) (2019 2020)
- VSA cannot be turned OFF
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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.