Description of DTC code P0581

Cruise control is a system developed to obtain better results in driving the vehicle. With this system, the driver sets a speed employing certain buttons that are placed on the steering wheel or steering column, and in this way, the driver doesn't need to press the accelerator pedal to maintain a speed. Also, if the vehicle's transmission is automatic, the cruise control adjusts the shift points as required by the driving condition and set by the driver.

When the DTC P0581 OBD2 code is set, it is due to the cruise control or multifunction input circuit "A" having a voltage above the parameters set by the manufacturer.

Symptoms of fault code P0581

  • Check Engine light illuminates.
  • The cruise control light illuminates when cruise control is not activated.
  • Uneven vehicle speed when cruise control is activated.
  • Unable to set the cruise control to the required speed.

Causes of OBD2 P0581

The reasons for the P0581 OBDII fault code setting are:

  • The multifunction switch or cruise control may have been damaged.
  • There may be water intrusion or corrosion on the steering wheel or steering column.
  • There may be burned, worn, or corroded wires or connectors.

Possible solutions of the DTC code P0581

To troubleshoot the P0581 OBD2 diagnostic code you must do the following:

  • As a first step of the diagnosis, we recommend you consult the Technical Service Bulletins (TSB).
  • Check that the multifunction switch does not present inconsistencies such as buttons with oil or grease residues that prevent their good performance. To properly maintain these components, avoid spraying water or other compounds directly on the buttons.
  • Check the electronic components related to the multifunction switch for obvious damage such as burn spots or corrosion. Repair or replace any such components that show such defects.

Codes related to P0581

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