P0219

DTC P0219 Engine Overspeed

Circuit Description

The crankshaft position (CKP) sensor is located on the flywheel housing. The ECM calculates the engine speed and exact position of the crankshaft based on the signal pulse from the CKP sensor. If the ECM detects an engine overrun condition this DTC will set.

Condition for Running the DTC

^ DTCs P0652 and P0653 are not set.

Condition for Setting the DTC

^ The ECM detects that the engine speed is more than 4000 RPM.

Action Taken When the DTC Sets

^ The ECM will not illuminate the MIL or SVS lamp. Refer to DTC Type Definitions for Action Taken When the DTC Sets - Type D.

Condition for Clearing the DTC

^ Refer to DTC Type Definitions for Condition for Clearing the DTC - Type D.

Diagnostic Aids

^ Make sure the CKP sensor is tight and the sensor rotor teeth are not damaged.
^ Electromagnetic interference in the CKP sensor circuits may set this DTC.

Notice: This DTC is caused by an engine overspeed condition, which was most likely caused by driver error (i.e. downshifting a manual transmission on a steep grade). Since the DTC does not illuminate any lamps, clear the DTC and ensure there are no sign of engine damage. Excessive engine overspeed may damage internal engine components.

Circuit/System Testing DTC P0219