C0080 critical

ABS Pump Motor Circuit Open

The C0080 code means the vehicle's onboard diagnostic system has detected: ABS Pump Motor Circuit Open. This is a critical severity code.

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Keep driving?
Short distances only
DIY difficulty
hard
Estimated cost
$300 - $1,500 (parts and labor)
Read ABS Codes
BlueDriver Bluetooth Pro Scanner

Basic scanners cannot read ABS codes. BlueDriver reads all systems including ABS, SRS, and transmission through your phone.

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Read ABS Codes
LAUNCH CRP123X (Reads ABS + Chassis)

Basic scanners cannot read ABS codes. This one reads all four systems so you know exactly which sensor failed.

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Common Symptoms

  • ABS light on dashboard
  • Traction control disabled
  • ABS does not engage during hard braking
  • Pump motor does not run when activated
  • Stability control warning message

Probable Causes (Ranked by Likelihood)

  • Failed ABS pump motor winding Very High
  • Open circuit in pump motor wiring High
  • Corroded ABS motor connector Moderate
  • ABS hydraulic module internal failure Low

Step-by-Step Diagnostic Procedure

  1. Scan ABS module for specific DTCs

  2. Check ABS pump motor resistance at connector

  3. Test power and ground at pump motor connector

  4. Inspect wiring from ABS relay to pump motor

  5. Attempt to actuate pump with scan tool

Frequently Asked Questions

Can the ABS pump motor be replaced separately?

On some vehicles, the motor is replaceable separately from the ABS hydraulic module. On many others, they are sold as one integrated unit, which increases the repair cost significantly.

Why is the ABS pump motor so expensive?

The ABS hydraulic unit is a precision-engineered assembly containing solenoid valves, the pump motor, and an accumulator. The complexity of the unit and the need for exact specifications drive the cost.

Will the regular brakes still work?

Yes. The standard hydraulic braking system will continue to function normally. Only the anti-lock braking function is lost, meaning wheels may lock up during hard braking on slippery surfaces.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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