If the engine control module (ECM) detects an engine overrun condition, this DTC will set.
This diagnostic procedure supports the following DTC:
DTC P0219 Engine Overspeed
The engine is running.
The ECM detects an engine speed of 3,750 RPM or higher.
• | The ECM does not illuminate the malfunction indicator lamp (MIL) when the diagnostic runs and fails. |
• | The ECM records the operating conditions at the time the diagnostic fails. The ECM stores this information in the Failure Records. |
• | A current DTC, Last Test Failed, clears when the diagnostic runs and passes. |
• | Clear the malfunction indicator lamp (MIL) and the DTC with a scan tool. |
• | 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 this DTC does not illuminate any lamps, clear the DTC and ensure there are no signs of engine damage. Excessive engine overspeed may damage internal engine components. |
• | Make sure the CKP sensor is tight and the sensor wheel teeth are not damaged. |
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Engine Controls Schematics | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 | Does the DTC set with the ignition ON or with the engine operating? | Go to Step 4 | Go to Step 3 |
3 | Ask the driver if overrun is caused by gear slip-out, shift error, etc. Did you complete the action? | Go to Step 4 | -- |
4 | Clear the DTCs and operate the vehicle. Do any other DTCs set? | System OK |