Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the sensor that tells the car's computer where the brake booster motor is. It's like when your game controller can't tell if you're pressing a button.
The vehicle's control module has detected a low voltage signal from the brake booster motor position sensor, indicating a possible issue with the sensor or its circuit.
C0588 is triggered when the Electronic Brake Control Module (EBCM) detects a low voltage condition in the brake booster motor position sensor circuit. This sensor is responsible for providing feedback on the position of the brake booster motor to ensure proper brake system operation.
• Illuminated Check Engine Light
• Reduced braking performance
• Unusual brake pedal feel
• Faulty brake booster motor position sensor
• Damaged or corroded wiring/connectors
• Defective Electronic Brake Control Module (EBCM)
Brake Booster: A device that uses vacuum to increase the force applied to the brakes.
EBCM: Electronic Brake Control Module, which manages the electronic functions of the brake system.
• Scan for codes and review freeze frame data
• Inspect the brake booster motor position sensor and wiring for damage
• Test the sensor for proper operation using a multimeter
• Replace the brake booster motor position sensor
• Repair or replace damaged wiring/connectors
• Replace the Electronic Brake Control Module if necessary
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regularly inspect brake system components
• Keep electrical connections clean and secure
• Follow the vehicle's maintenance schedule
Sensor Issue
• Do not ignore the warning light; have it checked soon
• Avoid heavy braking until the issue is resolved
Check with the manufacturer for warranty coverage on brake system components.
C0588 is not a common code, but it has been reported in vehicles with electronic brake systems, particularly in certain GM models.
High – This issue can affect braking performance, which is critical for vehicle safety.
Driving with impaired brakes can be dangerous and may violate safety regulations.
• Vehicle at operating temperature
• Engine running
The brake booster motor position sensor is typically located near the brake booster assembly, which is usually found on the driver's side firewall in the engine compartment.
Q: Can I drive my car with code C0588?
A: It's not recommended to drive with this code active, as it may affect your braking performance.
Q: How can I reset the C0588 code?
A: You can reset the code using an OBD-II scanner, but it's important to fix the underlying issue first.
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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