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P0580 is a diagnostic trouble code (DTC) for "Cruise control Multi-Function Input "A" Circuit Low". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
P0580 OBD-II Trouble Code: Cruise control Multi-Function Input "A" Circuit Low
A P0580 code means that the PCM has found an electrical problem with the multi-function input circuit in the vehicle’s cruise control.
In most vehicle models, the PCM works together with the cruise control module to automatically regulate the vehicle’s speed. If the PCM identifies that the speed cannot be automatically controlled, it initiates self-testing of the cruise control system. If the voltage/resistance level in the multi-function input circuit is abnormal, the PCM will record the P0580 code.
Most likely, the cruise control switch has failed, or there are shorted or open circuits in the cruise control buttons due to spilled liquids. There could also be damaged wiring, corroded connectors, and/or blown fuses. In the case of blown fuses, though, this is generally due to a more serious problem in the system, not due to a fault with the fuse itself.
The Check Engine light may be illuminated, or it may not. In some vehicles, the PCM storing the P0580 code will not activate the Check Engine light, while in others, several drive cycles may need to occur before the Check Engine light comes on. There may also be a blown fuse, and it is unlikely that you will be able to make use of the vehicle’s cruise control. How does a mechanic diagnose the P0580 code? The first course of action is for the mechanic to use an OBD-II scanner and a digital volt/ohmmeter to diagnose the code. Then:
Mechanics will sometimes assume that the problem is with faulty components without considering that the issue could just be a blown fuse. Most of the time, though, when a fuse blows, it is due to a fault elsewhere in the system.
Some drivers never use their vehicle’s cruise control. Others don’t miss it all that much if they do lose it. An inability to use the vehicle’s cruise control is not going to endanger you, your passengers, or anyone else on the road, so you can take your time getting the issue fixed, if you choose to have it fixed at all.
There are a number of things a mechanic can do to fix the P0565 code, including:
Whenever you need vehicle repairs, you can rely on YourMechanic to dispatch a qualified mechanic to your home or workplace. Call us at 1-800-701-6220, use our convenient online form to arrange an appointment.