Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with the cruise control system. It's like when a remote control doesn't work because the batteries are too strong or there's a problem with the button.
The P0577 code indicates that the cruise control input signal is higher than expected by the vehicle's computer.
The P0577 code is triggered when the Engine Control Module (ECM) detects a high voltage condition in the cruise control input circuit. This could be due to a malfunctioning switch, a short circuit, or an issue with the wiring or connectors.
• Cruise control not working
• Check Engine Light illuminated
• Inconsistent speed control
• Faulty cruise control switch
• Short circuit in the cruise control wiring
• Malfunctioning ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Inspect the cruise control switch for damage.
• Check the cruise control circuit wiring for shorts or damage.
• Test the ECM for proper function.
• Replace the cruise control switch if faulty.
• Repair or replace damaged wiring in the circuit.
• Reprogram or replace the ECM if necessary.
• Multimeter
• OBD-II scanner
• Screwdriver set
$100 - $500
Moderate
• Ford F-150
• Honda Accord
• Toyota Camry
• Regularly inspect and maintain the cruise control system.
• Avoid using cruise control in adverse weather conditions.
• Ensure all electrical connections are secure.
Sensor Issue
• Avoid using cruise control until the issue is resolved.
• Consult a professional mechanic for diagnosis and repair.
Repairs may be covered under warranty if the vehicle is still within the warranty period. Check with the manufacturer for details.
The P0577 code has been associated with cruise control system malfunctions in various vehicle models over the years.
Moderate – While the vehicle can still be driven, the cruise control system should be repaired to ensure proper functionality.
Operating a vehicle with a malfunctioning cruise control system can be dangerous. It is recommended to address the issue promptly.
• Vehicle must be in a safe, stationary position.
• Ensure the ignition is in the 'on' position without starting the engine.
The cruise control switch is typically located on the steering wheel or stalk.
Q: Can I drive my car with a P0577 code?
A: Yes, but it's best to avoid using cruise control until the issue is fixed.
Q: Will the Check Engine Light turn off after the issue is fixed?
A: Yes, once the issue is resolved, the Check Engine Light should turn off after a few drive cycles.
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