P0219

Diagnostic Chart:

Wiring Diagram:

Circuit Description

The PCM has the ability to put the vehicle in a ESO controlled idle if an engine overspeed condition has been detected.


Conditions for Setting the DTC

An RPM drop with 5 ESO cycles.


Action Taken When the DTC Sets

^ ESO controlled idle (the PCM will control RPM by turning the ESO ON and OFF. RPM will fluctuate from 800 to 1200 when DTC is set).

^ The PCM will not illuminate the Malfunction Indicator Lamp (MIL).

^ The PCM records the operating conditions at the time the diagnostic fails. This information will store in the Failure Records.

Conditions for Clearing the MIL/DTC

^ A History DTC will clear when forty consecutive warm-up cycles that the diagnostic does not fail (coolant temperature has risen 5°C (40°F) from start up coolant temperature and engine coolant temperature exceeds 71°C (160°F)) that same ignition cycle.

^ Use of a Scan tool.


Diagnostic Aids

This DTC will not set if an external fuel source is causing an overspeed condition. A DTC P1216 will set along with DTC P0219.


Test Description

Number(s) below refer to the step number(s) on the Diagnostic Table.

2. The injection pump is being replaced in this step.