P0590 Code - Speed Control Multiplexed Switch Performance

What Does P0590 Mean?

The Engine Control Module (ECM) monitors the Speed Control Multiplexed Switch. The ECM sets the OBDII code when the Speed Control Multiplexed Switch is not to factory specifications.

engine code P0590	P0590 fix	obd P0590	dtc P0590
obd code P0590	obd2 P0590	P0590 car code	diagnostic code P0590
car code P0590	check engine code P0590	fehlercode P0590	P0590 fiat
codigo P0590	codigo falla P0590	P0590 kody b??dów	codigo de falla P0590

What are the common causes of P0590 ?

• Fuel with a large percentage of sulfur will clog the DPF quickly
• The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
• A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

How do you troubleshoot P0590 ?

The original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. P0590 code had an elaborate diagnostics procedure, including showing engine trouble codes on the air conditionning display. However, the system was troublesome, misunderstood by customers, and a rash of unpredictable failures led to the technology being quickly retired.

Searches related to P0590 Code - Speed Control Multiplexed Switch Performance

• P0590
• P0591