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