Engine-Codes - Mazda - C0020 Mazda

C0020 Mazda Code - ABS Pump Motor Relay

- Code Popularity: 14,324 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC C0020 Mazda?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty ABS Pump Motor Relay
  • ABS Pump Motor Relay harness is open or shorted
  • ABS Pump Motor Relay circuit poor electrical connection
  • Faulty ABS Pump Motor

Code Tech Notes

There is factory service bulletin for the 2010-2011 Mazda3.
This concern may occur if the vehicle is used in an area with high ambient temperatures and humidity. Under these conditions, the pump motor brush in the ABS Hydraulic Unit may have poor contact causing the ABS warning light to turn ON. To correct the problem, the material of the motor brush has been changed. Replace the ABS Hydraulic Unit

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How to Fix the DTC C0020 Mazda?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the C0020 Mazda code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the C0020 Mazda Code Mean?

The Anti-Lock Brake System (ABS) Module monitors the ABS Pump Motor Relay. The ABS Module sets the OBDII code when the ABS Pump Motor Relay is not to factory specifications.

C0020 Mazda Code - ABS Pump Motor Relay

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