GM Service Manual Online
For 1990-2009 cars only

Diagnostic Instructions

    • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    •  Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC P0219 00: Engine Overspeed

Circuit/System Description

This diagnostic shows the technician when the engine speed was over the calibrated maximum.

Conditions for Running the DTC

    • The engine is running.
    • The DTC runs continuously once the above condition is met.

Conditions for Setting the DTC

Engine speed was above threshold.

Action Taken When the DTC Sets

DTC P0219 00 is a Type C DTC.

Conditions for Clearing the DTC

DTC P0219 00 is a Type C DTC.

Reference Information

Schematic Reference

Engine Controls Schematics

Connector End View Reference

Component Connector End Views

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Testing

Observe the DTCs with the scan tool.

⇒If DTC P0219 00 is set, inform the customer that these extremely high rotations may cause mechanical damage.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.