P0574 Code - Cruise Control System Vehicle Speed Too High

What Does P0574 Mean?

The Engine Control Module (ECM) monitors the Cruise Control System. The ECM sets the OBDII code when the Cruise Control System is not to factory specifications.

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What are the common causes of P0574 ?

While shorted, open, corroded, or otherwise damaged wiring and connectors are some of the causes of the storage of a P0574 trouble code, attempting to set the cruise control while driving at excessive speeds can also cause storage of this code. Blown fuses can also cause a P0574 trouble code, though this is also an indicator of a much more severe problem.

How do you troubleshoot P0574 ?

Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground.

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