ABS Pump Motor Relay
Table of contents
C0020 MAZDA Possible 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
How do I fix code 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’s pins.
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
Cost of diagnosing the C0020 MAZDA code
The cost of diagnosing the C0020 MAZDA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Anti-Lock Brake System (ABS) Warning Light ON
- Engine Light ON (or Service Engine Soon Warning Light)
C0020 MAZDA Description
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.