What does car code P0573 mean?
Brake Switch
OBD-II Code P0573 is defined as a Brake Switch “A” Circuit High. The Brake Switch tells the engine control module (PCM) that the brake pedal is depressed. This switch also controls the brake lights.
What is a po573 code?
P0573 is a diagnostic trouble code (DTC) for “Cruise Control/Brake Switch A Circuit High”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
What does a cruise control release switch do?
The cruise control brake release switch is a switch that turns off your cruise control when your brake pedal is pressed. When you decelerate your vehicle while cruise control is turned on the cruise control module detects a loss of continuity and cancels the cruise control set speed.
How do I fix code p0573?
How to Fix
- Repair or replacement of faulty electrical components, connections, and wires.
- Replace defective brake pedal and brake switch, then reset the code before taking the vehicle for a test drive.
- Replacement of blown fuses.
- Replacement of defective cruise control modules (rare)
What is brake switch circuit?
The brake switch (or brake light switch) is a switch linked to the brake pedal and ECM circuit. It’s mounted on the brake pedal arm. It deactivates cruise control while driving and lets the engine start when the brake pedal is depressed.
What does brake switch a circuit high mean?
Error Code P0573 is defined as Cruise Control/Brake Switch A Circuit High, meaning there’s an electrical malfunction detected within the vehicle, affecting its brake switch “A.” A defective cruise control switch often causes this fault. Many factors can alter the speed of the vehicle while driving down the road.
What are the symptoms of a p0573 diagnostic code?
Symptoms of a P0573 diagnostic code may include: 1 Cruise control completely inoperative 2 Erratic cruise control operation 3 Certain functions not operating as they should (e.g. set,resume, accel., etc.) 4 Cruise control turning on but not engaging 5 No brake lights if the brake light switch is faulty More
How does the p0573 brake switch code work?
P0573 code gets stored once your vehicle’s PCM senses an abnormal resistance/voltage level in the cruise control brake switch circuit during this test. That feedback essentially tells it speed cannot be controlled and thus cruise control must be prohibited.
What causes a p0573 cruise control code to be high?
Causes for this P0573 cruise control code may include: Cruise control/Brake switch defective Wiring issue (e.g. pinched on brake pedal, chafed, etc.) ECM (engine control module) issue (i.e. internal short, open, etc.) Debris/dirt mechanically hindering brake switch operation Brake switch not adjusted properly
What does the stop light signal p0573 mean?
When the brake pedal is depressed, the stop light switch sends a signal to the Engine Control Module ( ECM ). When the ECM receives this signal, it cancels the cruise control. Need more information on how to fix the P0573 code?