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

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P0580 DIAGNOSTIC 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 1-800-701-6220, use our convenient online form to arrange an appointment.

trouble codes
P0580
Check Engine Light

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P0580 DIAGNOSTIC
Get a fair and transparent estimate upfront

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

4,796

Rating Summary
4,411
187
47
28
123
4,411
187
47
28
123

Matthew

31 years of experience
633 reviews
Matthew
31 years of experience
Mercedes-Benz E320 - Check Engine Light is on - Williamsburg, Virginia
MATT WAS AMAZING! HE EXPLAINTED EVERYTHING SO WELL! HIS EXPERTISE AS A MECHANIC IS EVIDENT AND I HIGHLY RECOMMEND HIM.

Mario

18 years of experience
101 reviews
Mario
18 years of experience
Lexus LS430 - Check Engine Light is on - Naples, Florida
NICE GUY, COMPLETED ALL WORK PROFESSIONALLY, HE ACTUALLY OFFERED SUGGESTION AND ATTITUDE WAS THAT HE CARED UNLIKE PAST MECHANIC

Kai

12 years of experience
3 reviews
Kai
12 years of experience
Hyundai Sonata - Check Engine Light is on - Plano, Texas
Great. He was knowledgable and wasted no time getting to work. Had lots of helpful information for me

Patrick

31 years of experience
1038 reviews
Patrick
31 years of experience
Mazda CX-7 - Check Engine Light is on - Austin, Texas
Patrick is always on time and extremely knowledgeable and professional. I am quite picky when it comes to somebody working on my car and I fully trust that Patrick will do an excellent job every time.

More related articles

P0789 OBD-II Trouble Code: Shift/Timing Solenoid Intermittent
P0789 code means there is an issue with the gear ratio within the vehicle often due too a faulty shift solenoid or transmission blockages.
P2264 OBD-II Trouble Code: Water in Fuel Sensor Circuit
P2264 P2264 code definition Water in Fuel Sensor Circuit What the P2264 code means P2264 is an OBD-II generic code for the engine control module (ECM) detecting the water in fuel sensor circuit voltage falling below or exceeding the specified...
P0350 OBD-II Trouble Code: P0350 Ignition Coil Primary/Secondary Circuit Malfunction
P0350 code refers to an input problem relating to the engine's ignition coils which effects the vehicle's engine performance.

Related questions

Mercedes Misfire codes Po300 301 302 303

Ruling out ignition or fuel system problems is a lot of work. I usually do it by substituting components from non working cylinders to working cylinders to see if the misfire moves. Misfires on one side of the engine like...

Car won't accelerate past 3000rpm

This issue could be caused by a variety of things. I would suggest by checking to be sure that the idle air control module is working properly. Also, check to be sure that the throttle body is delivering...

Camshaft sensor issue on a '96 Tahoe

The first thing I'd advise doing is to go get yourself a sensor and put it on. A lot of times the sensors go bad, or when you pull it out, sometimes they get contaminated with oil so I'd start...

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.

1-800-701-6230 · hi@yourmechanic.com