P0580 OBD-II Trouble Code: Cruise control Multi-Function Input "A" Circuit Low

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0580 code

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.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$20.00
Toyota$20.00
BMW$20.00
SCHEDULE P0580 DIAGNOSTIC Get a fair and transparent estimate upfront

P0580 OBD-II Trouble Code: Cruise control Multi-Function Input "A" Circuit Low

Diagnostic Trouble Code (DTC): P0580

P0580 code definition

A P0580 code means that the PCM has found an electrical problem with the multi-function input circuit in the vehicle’s cruise control.

What the P0580 code means

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.

What causes 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.

What are the symptoms of the P0580 code?

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:

  • Examine all the wires and connectors
  • Replace or repair any faulty components and replace blown fuses
  • Use the scanner to re- test, and record freeze frame data and stored codes
  • Clear out the codes and run the vehicle
  • If the codes do not come back right away, the problem may have been easily corrected, or could be intermittent
  • If everything appears to be in proper working order but the codes are coming back, suspect a faulty cruise control switch
  • Replace the switch, and take a test drive to see if the cruise control works
  • If the problem is not fixed, raise the drive wheels, ensure that the vehicle is secured, and get an assistant inside the vehicle in order to get the speedometer up to the point where the cruise control can be activated
  • Use the digital volt/ohmmeter to check the voltage, with the cruise control switch’s electrical connector disconnected
  • See if the findings are compliant with the vehicle manufacturer’s specifications, and if they are, disconnect both the PCM and the cruise control module, and check the circuitry in the PCM, passenger cabin switches, and fuse panel
  • Compare the findings again, and repair any open or shorted circuits
  • Again, clear the codes and do a re-test
  • If no abnormalities are identified, do a resistance test on the on/off switch and the cruise control buttons, with the PCM and the cruise control disconnected
  • Replace the cruise control switch
  • Clear codes, and re-test

Common mistakes when diagnosing the P0580 code

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.

How serious is the P0580 code?

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.

What repairs can fix the P0580 code?

There are a number of things a mechanic can do to fix the P0565 code, including:

  • Replace blown fuses
  • Replace or repair damaged wiring and connectors
  • Replace the cruise control switch
  • Replace the PCM (although usually the PCM itself will not fail)

Need help with a P0580 code?

Whenever you need vehicle repairs, you can rely on YourMechanic to dispatch a qualified mechanic to your home or workplace. Call us at 1-800-701-6230, use our convenient online form to arrange an appointment.

trouble codes
P0580
Check Engine Light

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P0580 code.

SCHEDULE P0580 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.8/5

Number of Reviews

5,170

Rating Summary
4,765
197
50
27
131
4,765
197
50
27
131

Fred

16 years of experience
364 reviews
Fred
16 years of experience
Mercedes-Benz E500 - Check Engine Light is on - Conroe, Texas
Fred was very friendly and thorough to get to the root of the issue. Even when he could not find a fault to why my engine light was on, he went above and beyond to make absolutely sure that the concern was minimized. Turns out, all that needed to be done was a reset but his diagnostic to address my issues was very intricate and appreciated.

David

17 years of experience
37 reviews
David
17 years of experience
Chevrolet Cruze - Check Engine Light is on - Aurora, Colorado
David was on time, professionalisms & honest! I would definitely request him again and pass along to friends/family.

John

18 years of experience
18 reviews
John
18 years of experience
Dodge Ram 1500 - Check Engine Light is on - Memphis, Tennessee
Demonstrated good integrity. Advised me when work I thought needed done was unnecessary and was helpful in identifying issues that needed to be addressed

Robert

21 years of experience
17 reviews
Robert
21 years of experience
Chrysler 200 - Check Engine Light is on - Fort Worth, Texas
Robert did a good job working on my car and letting me know what's needed to keep my car driving smoothly.


More related articles

P0009 OBD-II Trouble Code: Engine Positions System Performance Bank 2
P0009 P0009 code definition The P0009 code is associated with your engine’s mechanical timing. It may also be accompanied with the codes: P0008, P0010, P0011, P0012, P0013, P0014, P0015, P0016, P0017, P0018, P0019, and many more. What the P0009...
P0331 OBD-II Trouble Code: Knock Sensor 2 Circuit Range/Performance (Bank 2)
Trouble code P0331 means the powertrain control module (PCM) senses a faulty knock or ping noise coming from the car engine.
P0703 OBD-II Trouble Code: Torque Converter/Brake Switch B Circuit Malfunction
P0703 Code means the PCM has registered a fault in the brake switch B circuit due to failed brake lamp switch, faulty fuse or socket

Related questions

Ignition coil and Check Engine Light issue - 2008 Mercury Mariner

Hello, thanks for writing in! There is no such thing as a B location for a coil. You have six coils, that is one per cylinder you have. Without knowing where the bad coil was relocated to it would be...

Can you drive a car with a bad throttle body?

From your post I presume that you have checked the codes and got a throttle body code. The car may still seem to be okay and you want to know if it is safe to drive. The answer is: probably....

My '98 expedition, it drives fine for a while, then after a few hours, when sitting still, it idles rough then shuts off.

After some testing done to verify the EGR valve flow to see if the valve is intermittently sticking open causing the stall. This can be done using a scanner with the capability to open and close the EGR valve and...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com