Circuit Description
The powertrain control module (PCM) has the ability to put the vehicle in an engine shut-down (ESO) solenoid controlled idle if an engine overspeed condition has been detected.
Conditions for Running the DTC
The engine is operating.
Conditions for Setting the DTC
An RPM drop with 5 ESO cycles.
Action Taken When the DTC Sets
| • | The control module stores the DTC information into memory when the diagnostic runs and fails. |
| • | The malfunction indicator lamp (MIL) will not illuminate. |
| • | The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Failure Records. |
| • | The driver information center, if equipped, may display a message. |
Conditions for Clearing the DTC
| • | A current DTC Last Test Failed clears when the diagnostic runs and passes. |
| • | A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other non-emission related diagnostic. |
| • | Clear the DTC with a scan tool. |
Diagnostic Aids
This diagnostic trouble code (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
The number below refers to the step number on the diagnostic table.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Engine Controls Schematics | |||
1 | Did you perform the Diagnostic System Check-Engine Controls? | Go to Step 2 | |
|
Important: The new injection pump must be timed. Refer to Fuel Injection Pump Timing Adjustment . Replace the fuel injection pump. Refer to Fuel Injection Pump Replacement . Did you complete the replacement? | Go to Step 3 | -- | |
3 |
Does the DTC run and pass? | Go to Step 4 | Go to Step 2 |
4 | With a scan tool, observe the stored information, Capture Info. Does the scan tool display any DTCs that you have not diagnosed? | System OK | |
