03409

From Ross-Tech Wiki


03409 - Rolling Mode Recognized

Possible Symptoms

  • DTC stored in ABS
  • MIL/Warning lamps may illuminate
  • No actual drivability complaint in most cases

Possible Causes

  • Vehicle operated on a chassis dynamometer (rolling road)
  • Front or drive wheels spinning while vehicle is on a lift
  • Mismatch between wheel speed signals and vehicle operating conditions

Possible Solutions

  • Clear DTC after completing work on a chassis dynamometer
  • Cycle ignition OFF → wait ~10 seconds → ON, then clear codes
  • Ensure vehicle is operated on approved test equipment when simulating road load
  • No component replacement is required unless additional faults are present

Special Notes

  • According to the manufacture: The malfunction will be automatically erased if, after completing work on the roller chassis dynamometer, the ignition has been switched off and on again.
  • It is possible to set this code when the vehicle is on a service lift, in gear and the drive wheels are spinning.
  • If the DTC recurs under normal road use, investigate wheel speed sensors and ABS system further.