Guide To P0577 OBD Error Code Solutions

<<See All OBD Codes

The overall speed of the vehicle is controlled by the powertrain control module and cruise control module. Now if a fault is detected by the powertrain control module in this circuit, then it would initiate a self-test of the entire cruise control system.

If the PCM reads an abnormal voltage/resistance level in the input circuit from the cruise control, then the P0577 trouble code would be stored in. The most common cause behind the triggering up of P0577 code is a failure in the cruise control switch. If there would be a spill of liquid on the switches, then it would cause a short or open circuit in the cruise control buttons.

P0577 Code would start flashing up if there is an electrical fault in the cruise control circuit due to a failed switch, or abnormal voltage level in the input circuit. The powertrain control module would read an electrical fault in the cruise control circuit.

The error code P0577 can be defined as Cruise Control Input Circuit High.

What causes this problem with the Cruise Control Input Circuit High?

• The cruise control function switch might be opened or shorted
• The cruise control system might have damaged connectors
• A common cause of abnormal voltage/resistance level in the cruise control input circuit is a defective cruise control switch that could potentially be caused by spilled liquids that short circuits the device and/or circuits within
• There can be some issues related to the wiring
• There can be an internal short, open, etc in the engine control module
• Blown fuses, which could indicate a much more serious problem like short, voltage spikes, control module faulty etc

1. Fuel Injector - A faulty Fuel Injector can be troublesome. You can always rely on us as we have best auto parts for our customers.
2. Fuel Injection Harness - If everything is alright with Cruise Control Switch, then there is surely some defect in Fuel Injection Harness. Get it replaced before the situation gets worse.
3. Cruise Control Switch - P0577 code can display due to some issues in the Cruise Control Switch. So, it is very important to replace the Cruise Control Switch with us at equitable prices.
4. Engine Control Module - Do you remember when was the last time you got your car Engine Control Module checked up? A dirty Engine Control Module can cause a lot of issues like displaying P0577 code.
5. Powertrain Control Module - There can be some issues with the Powertrain Control Module due to which you may see P0577 code appearing over and over again. Visit us to buy best quality PCM online.

It is vital to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P0577 here:

Common Symptoms

• There might be erratic or intermittent cruise control function operation
• The check engine light can start flashing up
• Issue of cruise control light on constant or it might not come on

Looking out for some ways with the help of which you can correct this fault code? Then you have arrived at the correct place. We are here to help you out, so you must check out the steps mentioned below as follows:

• If there are any fluid leaks due to which the switch is malfunctioning, the it should be repaired
• Repair or replace the shorted or open wiring
• Replace the cruise control switches or repair any loose, disconnected or corroded wiring
• Carefully replace the defective cruise control switch
• The open or shorted cruise control function switch harness should be repaired properly
• Restore the damaged connectors within the cruise control system
• Make sure to replace the blown fuses

Parts Avatar Canada endeavours to fulfil all the needs of its consumer, that’s why we have a huge collection of top-quality engine light flashing, ratchet straps, tie down straps, body control module, blown fuse, battery connectors and many more at equitable prices. We won’t let you down in any way.

You must carefully research the technical service bulletins for known issues. Advanced diagnostic steps become very vehicle specific and may require the appropriate advanced equipment and knowledge to perform accurately.

We include basic steps below but refer to a vehicle year/make/model/powertrain specific repair guide for specific steps for your vehicle.

Step 1

• After recording the active P0577 code with your OBD-II DTC scanner, you should conduct an in-depth inspection of the vehicle's connectors, wirings, and other parts of the cruise control system. It is also important that any damaged connectors (e.g. broken tabs, heat damage, corroded, etc.) be replaced, reconnected, or repaired as necessary. You will need to clear the code and perform a sort test drive, try using the cruise control functions now.
• If everything is working after the repair, you should ensure that the check engine light no longer reappears. Otherwise, if it does light up again and the code has been stored in the ECM once more, continue your diagnostics

Step 2

• Then you should inspect the cruise control switch. Refer to your make and model's service manual to acquire the correct desired values and diagnostic procedures specific to your vehicle. Most times, this will involve using your DVOM or multimeter to record the electrical values present
• After comparing your actual values to the manufacturer's desired ones, you will be able to pinpoint the switch as the issue or rule out as a possibility

Step 3

• If there are some defects in the switch, replacing it may not be an easy task, given the fact that there may be airbags in the way of replacing it. It could be as simple as removing 1 or 2 steering column covers to access the switch
• Then you should test drive the vehicle after clearing up the codes

Common Mistakes When Diagnosing The P0577 Code

The car mechanic should make sure to carefully inspect the blown fuses before they start replacing any other car components