P0580 OBD Error Code: Problem & Solutions

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The trouble code can be defined as Cruise control Multi-Function Input "A" Circuit Low.

If the PCM has found an electrical problem with the multi-function input circuit in the vehicle’s cruise control, then it would give rise to the P0580 error code.

There are many vehicle models where the powertrain control module and the cruise control module work together to automatically regulate the vehicle’s speed. Now of the PCM identifies that the speed cannot be automatically controlled, it initiates self-testing of the cruise control system. The PCM will trigger up the P0580 code if the voltage/resistance level in the multi-function input circuit is abnormal.

What causes this problem with the Cruise control Multi-Function Input "A" Circuit Low?

• Connector malfunction like corroded pins, broken plastic tabs, swollen connector body, etc
• Abnormal mechanical operation might be caused because of fluids/dirt/grime in cruise control button/switch
• There can be some faults in the engine control module
• Defects in the multi-function/cruise control switch
• There can be some issues related to the wiring

1. Fuel Injector - Do you remember when was the last time you got your car Fuel Injector checked up? A dirty air filter can cause a lot of issues like displaying P0580 code.
2. Engine Control Module - Are there some faults in your Engine Control Module? Don’t waste time and get them replaced or else P0580 code can turn up.
3. Powertrain Control Module - OBD Code P0580 can appear because of faulty Powertrain Control Module.
4. Cruise Control Switch - Everything is fine with Powertrain Control Module and still P0580 code triggering? Then you must get your Cruise Control Switch checked.
5. Fuel Injection Harness - There can be some issues with the Fuel Injection Harness due to which you may see P0580 code appearing over and over again. Visit us to buy best quality Fuel Injection Harness online.

Our main motive is to achieve customer satisfaction and that’s why we will help you to diagnose P0580 code by mentioning some major symptoms below:

Common Symptoms

• Cruise control light can start appearing
• There can be unusual vehicle speeds with cruise control active
• Cruise control might not function properly
• Problems in setting the cruise control to desired speed

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P0580:

• Make sure to replace the blown fuses
• Replace or repair damaged wiring and connectors
• Carefully replace the cruise control switch
• If there are some faults in the powertrain control module, then it should be replaced

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Here are some steps which you should follow in order to diagnose this fault code:

Step 1

• First and the foremost step is to locate the vehicle's multi-function/cruise control switch and then you must visually inspect it for any kind of contamination. It is very easy for plastic buttons/switches to get dirty/greasy/sticky causing them to malfunction and/or operate abnormally
• Make sure that the mechanical operation of the switch is seamless and smooth. Any problem here should be addressed immediately. If your particular scan tool/OBD reader has the capabilities, feel free to observe the electronic operation of the switch through data stream
• Just be sure to avoid spraying any cleaning solutions directly to the button. Lightly dampen a clean rag with either water, soap & water, dash cleaner, etc. and carefully remove the debris from the switch's crevices. An air powered blow gun will aid in removing debris without worsening the situation

Step 2

• To access the connectors and harnesses involved within the cruise control/multi-function switch input circuit, there would be a need to remove some dash plastic/shrouds. Be delicate whenever working with plastic.
• Comfortable room temperatures always help with the ease of dash/interior plastic disassembly/assembly. If you can easily access the connector, you may be able to apply specific troubleshooting steps provided by your service manual. Switch testing will most likely involve recording electrical values using your multimeter.
• This may include operating the switch while recording and/or static testing. Refer to the specific make and model service manual for "diagnostic flow chart"

Step 3

• Most times the last resort in diagnosis is a problem within the ECM
• It may be one of the most expensive electronic repairs you could do on your vehicle, so you should leave this to the professionals

Common Mistakes When Diagnosing The P0580 Code

Most of the times the mechanics might assume that the issue with faulty components without considering that the issue could just be a blown fuse