P0570 OBD-II Trouble Code: Cruise Control Accel Malfunction

P0570 code definition

The P0570 code indicates that the PCM has identified a malfunction with your vehicle’s cruise control.

What the P001F code means

Your vehicle’s PCM works with the cruise control module in order to enable you to automatically control the speed of your vehicle. If the PCM finds that the speed cannot be automatically controlled, then it self-tests the cruise control system, and stores a P570 code.

What causes the P0570 code?

Most of the time, when a P0570 code is stored, the reason is a failure in the cruise control switch. If the switch is open or shorted (usually due to spilled liquids), then the switch will fail. Other causes can be blown fuses, or corroded connectors. Keep in mind, though, that if a fuse blows, this is generally an indication of a more serious problem.

What are the symptoms of the P0570 code?

Usually, if the PCM stores a P0570 code, you will not be able to use your cruise control. Other symptoms include:

• Check Engine Light comes on

• Blown fuses

Sometimes, the Check Engine Light will not come on until the failure has been recorded three times.

How does a mechanic diagnose the P0570 code?

Your mechanic will begin by using a OBD-II scanner and ohmmeter to diagnose your P0570 code. Then, he or she will: * Visually inspect the connectors and wiring

• Replace or repair any damaged wiring or connectors

• Re-test your vehicle’s system to ensure that everything is in proper working order

• Do a test drive to determine if the codes are cleared

Common mistakes when diagnosing the P0570 code

Sometimes, codes may appear intermittently, and the mechanic may assume that the problem has been corrected when it actually has not. These intermittent controls can be difficult to diagnose, and sometimes the problem actually has to get worse before an effective diagnosis can be made. Sometimes, too, mechanics may assume the worst and replace many components without first checking for blown fuses and identifying the problem that is causing the fuses to blow.

How serious is the P0570 code?

In the grand scheme of things, a P0570 code is not a big deal at all. Not having your cruise control is not going to affect your safety at all, unless you rely on it to keep you at the proper speed limit when driving on the highway (which you should not do in any case). All that losing your cruise control means is that you will have to monitor your speed yourself, the same way that you would do if you were driving a vehicle that was not equipped with cruise control. If the lack of cruise control bothers you, then of course you are going to want to see a mechanic in order to have the problem corrected. You can do this at your leisure, though, because faulty cruise control is not a safety issue.

What repairs can fix the P0570 code?

If the cruise control switch is faulty, then your mechanic can replace it. After doing so, he or she will test the cruise control system to make sure that the problem does not continue. If it does, then the drive wheels can be raised, and with a helper in the vehicle, the mechanic will rev the engine to the point where it gets to a speed that is going to activate the cruise control. Then, the electrical connector is disconnected and the switch tested for voltage. Shorted or open circuits will be identified, and then can be repaired. You’ll be cruising again in no time.

Additional comments for consideration regarding the P0570 code

Using your cruise control as a means of reminding you to slow down is a bad idea. Watch your speed, and never assume that your cruise control is working correctly.

Need help with a P0570 code?

YourMechanic can help you with problems with your cruise control, and anything else that might go wrong with your vehicle. Our qualified mechanics will be happy to visit your home or workplace whenever you need assistance with automotive issues. You can reach us at 1-800-701-6230, or use our convenient online form to arrange an appointment. Our mechanics are ready to go whenever you need them.