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HOMESERVICE MANUALSACURA2018ILXREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESANTI-LOCK BRAKESVSA SYSTEM - ADVANCED DIAGNOSTICS (EXCEPT HYBRID)ADVANCED DIAGNOSTICSDTC ADVANCED DIAGNOSTICS: VSA RELATED DTCS(A/T)DTC 71-12: DIFFERENT DIAMETER TIRE MALFUNCTION (LEFT-FRONT OR RIGHT-REAR)
2018 Acura ILX

DTC 71-12: Different Diameter Tire Malfunction (Left-Front or Right-Rear)

2018 Acura ILXSECTION DTC 71-12: Different Diameter Tire Malfunction (Left-Front or Right-Rear)
Confirmation Procedure Basic Condition:
  • Battery voltage above 8.5 V

With the Driving Pattern:

  • Start the engine.
  • Test-drive the vehicle at 19 mph (30 km/h) or more for at least 15 seconds.

    (Be careful of the surrounding traffic conditions.)
Execution Regular Diagnosis
Duration About 15 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on*
  • VSA indicator on
  • Brake system indicator on*
*: Dependant upon the conditions
Fail Safe Action
  • Stop ABS function*
  • Stop VSA function
  • Stop TCS function
  • Stop brake assist function
  • Stop hill start assist function
  • Stop EBD function*
*: Dependant upon the conditions
Possible Cause
  • Single small diameter tire
RENDER: 1.0x

NO RELATED

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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.