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 electricity going to the part of the car that helps it stop safely. It's like when a toy doesn't work because the batteries are not working right.
The ABS (Anti-lock Braking System) pump motor requires a specific voltage to operate correctly. This code indicates that the voltage is not within the expected range.
The C055C code is triggered when the ABS control module detects a voltage issue in the ABS pump motor circuit. This could mean the voltage is too high, too low, or fluctuating, which can affect the ABS system's ability to function properly.
• ABS warning light on dashboard
• Reduced braking performance
• ABS system not functioning
• Faulty ABS pump motor
• Poor electrical connections
• Blown fuse or faulty relay
ABS: Anti-lock Braking System
OBD-II: On-Board Diagnostics II
• Check the ABS pump motor fuse and relay.
• Inspect wiring and connections to the ABS pump motor.
• Test the voltage at the ABS pump motor.
• Replace the blown fuse or faulty relay.
• Repair or replace damaged wiring or connectors.
• Replace the ABS pump motor if faulty.
• Multimeter
• OBD-II scanner
• Basic hand tools
$150 - $500
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regularly check and maintain electrical connections.
• Inspect ABS components during routine maintenance.
• Replace fuses and relays as needed.
Electrical Issue
• Do not ignore the ABS warning light.
• Have the vehicle inspected by a professional if unsure.
• Avoid driving in conditions that require heavy braking until repaired.
Check with the vehicle manufacturer for warranty coverage on ABS components.
This code has been reported in vehicles with electrical system issues, particularly in older models with worn-out components.
Moderate – While the vehicle can still be driven, the ABS system may not function properly, which can affect braking safety.
Driving with a malfunctioning ABS system can increase stopping distances and affect vehicle safety.
• Vehicle parked and engine off
• Battery fully charged
The ABS pump motor is typically located near the brake master cylinder or within the ABS module assembly.
Q: Can I drive with the C055C code?
A: It's possible to drive, but it's not recommended because the ABS system may not work properly.
Q: How can I reset the ABS light?
A: Fix the underlying issue first, then use an OBD-II scanner to clear the code.
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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Universal · Torque wrench
Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.
Useful when wheel, hub, or suspension hardware needs correct reassembly torque.
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Universal · Drive-on ramps
Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.
Helpful for safer access during underbody inspection work.
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