Code P0570 indicates that the engine control module has detected an issue with the cruise control accelerate signal circuit. This typically means the electrical signal sent when the driver presses the accelerate/resume button on the steering wheel is missing, out of range, or stuck.
The accelerate/resume button on the steering wheel can wear out or stick internally, sending an incorrect or absent electrical signal.
The clockspring maintains electrical continuity to the steering wheel while it turns. If it fails, it disrupts the cruise signal and often disables the horn and airbag.
Corroded, open, or shorted wiring and connectors between the steering column and the control module can interrupt the signal.
The engine computer or dedicated cruise module may fail to read the signal, though this is a rare cause.
Yes, the vehicle is safe to drive, but the cruise control system will likely be non-functional until the issue is repaired.
Rarely. Drivers and technicians are sometimes quick to blame the engine computer, but this code is almost always caused by a faulty switch, clockspring, or wiring issue, not the PCM.
The clockspring carries the electrical signals for both the cruise control buttons and the airbag. If the clockspring breaks, both systems will trigger warning lights simultaneously.
Not always. In some vehicles, the individual accelerate switch can be replaced, while in others it is integrated into a single switch panel that must be replaced as a unit.