Error Code P0575 is defined as Cruise Control Input Circuit, meaning the control input circuit is experiencing an electrical malfunction, often caused by defective, cruise control switches or wires.
This code is a generic trouble code that applies to cars equipped with OBD-II and with cruise control. It is particularly common, but not limited to Chevrolet (Chevy), Dodge, Ford, Harley, Ram, etc. Specifications on the definition, troubleshooting, and repairs, of course, vary from one powertrain type, make and model to another.
The PCM (powertrain control module, also known as ECM or engine control module in other 2019 Ford Ranger makes) spends most of its time making sure the engine is running properly. It tries to keep performance, fuel economy, emissions, noises, creator comfort functions at an acceptable level. Cruise control is one important feature especially for long trips, as it provides drivers the help they need in controlling the speed of your 2019 Ford Ranger . The PCM can take care of this function, as long as the cruise control system is free of any problems. When the cruise control light is activated on the dash that means the PCM has disabled the cruise control system.
Generally, Error Code P0575 means the cruise control system’s control input is having an electrical malfunction. Multiple factors could cause this. This code specifically means there’s a general, non-specific malfunction in the cruise control input circuit.
Other related error codes include:
Aside from the activation of Check Engine light, Cruise Control light, stored code, the most common symptom for this trouble code is non-functioning cruise control system. Other symptoms include erratic or intermittent cruise control function(s).
The most common cause of this code is abnormal voltage/resistance level in the cruise control input circuit, which is a result of faulty cruise control switch due to shorted circuitry from leaking or spilled liquids.
Other possible causes include:
In some cases, a blown fuse can cause this code, which could be a symptom of a more significant problem.
As with most codes, it is best to check with the TSB (Technical Service Bulletin) for known issues, troubleshooting, and repairs for the error code.
Advanced diagnostic steps are usually 2019 Ford Ranger specific, and may require advanced equipment and tools to perform accurately.
Record the active code with your OBD-II scanner, then inspect your 2019 Ford Ranger ’s connectors, wirings, and other components of the cruise control system. Look for any damaged components, especially connectors (i.e. heat tabs, broken tabs, corroded connectors, etc.). Repair or replace when necessary.
Make sure you clear the codes and perform a test drive, try using the cruise control functions this time.
If it’s working after repair, then make sure the Check Engine light is no longer active on the dashboard. If it lights up again, then that means the code has been stored in the PCM again. Thus, continue the diagnosis.
Test the switch control switch (malfunction switch). Refer to your service manual for the specific repair and get the right desired values and diagnostic procedure. Use DVOM (or multimeter) to record the electrical values present. Compare the actual values to the specifications set by the manufacturer. This will help you pinpoint if the switch is the issue, or rule it out as a possibility.
The defective switch must be replaced. This can be quite a difficult task, since there are other things in the way, such as the airbags. With that said, it could also be as simple as removing 1 or 2 steering column covers to get access to the switch.
If you have determined it as defective, then replace following the specific steps set by the manufacturer for your 2019 Ford Ranger . Take your 2019 Ford Ranger for a test drive and clear the active codes.
Common repairs for this code include:
This code is a minor issue that doesn’t require immediate repair. The 2019 Ford Ranger is still operational, and engine performance won’t suffer.
The most common mistake in addressing this issue is unnecessarily replacing components when the problem was actually a blown fuse. Thus, it’s important to check for blown fuses before replacing any components and then conduct a retest to see if the fuse was causing the issue.