P0568

DTC P0568 (2.2L, 2.4L)






Circuit Description

The cruise control set/coast switch is an input to the engine control module (ECM). The ECM uses the cruise control set/coast switch signal circuit in order to detect when the driver has requested to set the vehicle speed or to decelerate the vehicle speed. The ECM detects a high signal voltage on the cruise control set/coast switch signal circuit when the switch is applied.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P0568 Cruise Control Set Switch Circuit

Conditions for Running the DTC

* The ignition is ON.
* The cruise control On/Off switch is ON.

Conditions for Setting the DTC

The ECM detects a high signal voltage on the cruise control set/coast switch signal circuit for longer than 60 seconds.

Action Taken When the DTC Sets

* The ECM stores the DTC information into memory when the diagnostic runs and fails.
* The malfunction indicator lamp (MIL) will not illuminate.
* The ECM records the operating conditions at the time the diagnostic fails. The ECM stores this information in the Failure Records.
* The cruise control system is disabled.

Conditions for Clearing the MIL/DTC

* A last test failed, or the current DTC, clears when the diagnostic runs and does not fail.
* A history DTC clears after 40 consecutive warm-up cycles, if failures are not reported by this or any other emission related diagnostic.
* Use a scan tool in order to clear the MIL/DTC.

Diagnostic Aids

* Ensure that the set/coast switch is not stuck in the engaged position.
* For an intermittent condition, refer to Testing for Intermittent Conditions and Poor Connections in Diagnostic Aids. Component Tests and General Diagnostics

Test Description

Step 1 - Step 9:

The number below refers to the step number on the diagnostic table.
2. This step determines if condition is present.