Engine-Codes - Generic - P0579

P0579 Code - Cruise Control Multifunction Input 'A' Circuit Range/Performance

- Code Popularity: 24,010 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P0579?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Cruise Control Multifunction Switch
  • Cruise Control Multifunction Switch harness is open or shorted
  • Cruise Control Multifunction Switch circuit poor electrical connection
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How to Fix the DTC P0579?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0579 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

The ECM has detected a multifunction switch A input error

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Cruise control system inoperative

What Does the P0579 Code Mean?

The Engine Control Module (ECM) monitors the Cruise Control Multi-Function Input 'A'. The ECM sets the OBDII code when the Cruise Control Multi-Function Input 'A' is not to factory specifications.

P0579 Code - Cruise Control Multifunction Input 'A' Circuit Range/Performance

Need more Information on the Code?

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Code P0579 Information for Specific Makes

  • P0579 Chrysler Speed Control Switch 1 Performance Condition
  • P0579 Dodge Speed Control Switch 1 Performance Condition
  • P0579 Ford Cruise Control Multifunction Input 'A' Circuit Range/Performance
  • P0579 Mazda Cruise Control Multi-Function Input 'A' Circuit Range/Performance
  • P0579 Mercedes-Benz Cruise Control Multifunction Input 'A' Circuit Range/Performance

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