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Home >> Acura >> 2017 >> ILX >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> VSA System - Advanced Diagnostics (Except Hybrid) >> Advanced Diagnostics >> DTC Advanced Diagnostics: VSA related DTCs(A/T) >> DTC 81-20: Acceleration Sensor (Inside of Modulator-Control Unit) Internal Circuit Malfunction
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DTC 81-20: Acceleration Sensor (Inside of Modulator-Control Unit) Internal Circuit Malfunction

Confirmation Procedure With the Driving Pattern:
  • Start the engine, and wait 10 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 10 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop brake assist function
  • Stop hill start assist function
Possible Cause
  • VSA modulator-control unit internal failure
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