For 1990-2009 cars only
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 Running the DTC
The engine is operating.
Conditions for Setting the DTC
Positive engine torque without an increase in fuel rate.
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 the 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 after forty consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic. |
| • | The 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.
