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 part of the car that helps stop the wheels from locking up when you brake hard. It's like a helper for your brakes, and it's not working right.
The ABS pump motor is responsible for maintaining the hydraulic pressure in the ABS system. This code indicates that there is an issue with the control of this motor.
The C0020 code is set when the ABS module detects a malfunction in the pump motor control circuit. This could be due to electrical issues, such as a short or open circuit, or a mechanical failure within the pump motor itself.
• ABS warning light on the dashboard
• ABS system not functioning
• Increased stopping distance
• Unusual noises from the ABS motor
• Faulty ABS pump motor
• Blown fuse for the ABS motor
• Wiring issues such as open or short circuits
• Faulty ABS control module
ABS: Anti-lock Braking System
OBD-II: On-Board Diagnostics, Second Generation
• Check the ABS fuse and replace if necessary
• Inspect wiring and connectors for damage or corrosion
• Test the ABS pump motor for proper operation
• Scan for additional ABS-related codes
• Replace the ABS pump motor if faulty
• Repair or replace damaged wiring or connectors
• Replace the ABS control module if necessary
• Clear the codes and test drive to ensure proper operation
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $800
Moderate
• Toyota Camry
• Ford F-150
• Honda Accord
• Regularly check and maintain brake fluid levels
• Inspect ABS system components during routine maintenance
• Address ABS warning lights promptly
ABS System Issue
• Do not ignore the ABS warning light
• Drive cautiously and avoid hard braking until repaired
Check with the vehicle manufacturer for warranty coverage on ABS components.
ABS systems have been standard in most vehicles since the late 1990s, and issues with the pump motor are a known concern as vehicles age.
Moderate – While the vehicle can still be driven, the ABS system will not function, increasing the risk of wheel lock-up during hard braking.
Driving with a malfunctioning ABS system can increase the risk of accidents. It is recommended to address this issue promptly.
• Vehicle parked on a level surface
• Ignition in the ON position without starting the engine
The ABS pump motor is typically located near the brake master cylinder or integrated into the ABS module itself.
Q: Can I drive with the C0020 code?
A: Yes, but it's not recommended as the ABS system will not function, increasing the risk of wheel lock-up.
Q: Will fixing the ABS pump motor clear the code?
A: Yes, once the issue is resolved, clearing the code with an OBD-II scanner should prevent it from returning.
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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Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.
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