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Home >> Honda >> 2020 >> Fit EX >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> VSA System - DTC Diagnostics & DTC Advanced Diagnostics >> DTC Advanced Diagnostics >> ABS Related Advanced Diagnostics DTCs (ABS Control Unit) >> DTC C1040-00: Different Diameter Tire is Detected
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DTC C1040-00: Different Diameter Tire is Detected

Confirmation Procedure Basic Condition:
  • No other DTCs detected

Operating Condition:

  • 1.

    Start the engine.

  • 2.

    Test-drive the vehicle at 13 mph (20 km/h) or more for 72 seconds or more. (Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)

Execution Regular Diagnosis
Duration About 72 seconds
DTC Type
  • 1 drive cycle
  • Brake system indicator on (Dependent upon the conditions)
  • ABS indicator on
Fail Safe Action
  • Stop EBD function (Dependent upon the conditions)
  • Stop ABS function
Possible Cause
  • Low air pressure in tires
  • Damage or debris on the encoder surface
  • Different diameter tires
  • Wheel speed sensor failure
  • ABS modulator-control unit internal failure