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 computer in your car is having trouble talking to the part that controls the parking brake. It's like when a walkie-talkie has a weak signal.
The C0617 code indicates that the voltage in the control circuit of the park brake control module is lower than expected.
The Park Brake Control Module monitors the voltage in its control circuit. If the voltage falls below a specified threshold, the module sets the C0617 code. This could be due to wiring issues, a faulty module, or other electrical problems.
• Parking brake warning light on
• Parking brake may not engage or disengage properly
• Unusual noises when using the parking brake
• Faulty park brake control module
• Poor electrical connections
• Damaged wiring in the control circuit
Park Brake Control Module: A component that manages the electronic parking brake system.
Control Circuit: The electrical pathway that allows the module to communicate and function properly.
• Check for other related codes
• Inspect the wiring and connectors to the park brake control module
• Test the voltage in the control circuit
• Repair or replace damaged wiring
• Ensure all electrical connections are secure
• Replace the park brake control module if faulty
• Multimeter
• OBD-II scanner
• Basic hand tools
$150 - $400
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regularly inspect electrical connections
• Avoid exposure to moisture and corrosion
• Perform routine maintenance checks
Electrical Circuit Issue
• Do not ignore the parking brake warning light
• Have the issue diagnosed by a professional
• Avoid using the parking brake until repaired
Check if the vehicle's warranty covers electrical components
This code has been reported in vehicles with electronic parking brake systems, especially in models with known electrical issues.
Moderate – The vehicle may be driven, but the parking brake function should be checked as soon as possible.
Driving with a malfunctioning parking brake can be hazardous. Ensure repairs are made to maintain safety.
• Vehicle parked on level ground
• Ignition in the 'ON' position
The park brake control module is typically located near the rear of the vehicle, often near the rear axle or integrated into the brake system.
Q: Can I drive with a C0617 code?
A: It's possible, but not recommended. Your parking brake may not function properly, which can be dangerous.
Q: How do I reset the C0617 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, it should not return.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
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