C05A5
ABS Pump Motor Supply Voltage B Circuit/Open
C05A5 is an OBD-II diagnostic trouble code meaning: ABS Pump Motor Supply Voltage B Circuit/Open. Common causes: broken wiring harness to abs pump motor, faulty relay or power supply fuse. Estimated repair cost: $56–167.
Symptoms
- The ABS indicator on the dashboard is on
- ABS does not work when braking
- Unusual sounds when the ABS pump is running
Causes
- Broken wiring harness to ABS pump motor
- Faulty relay or power supply fuse
- Short circuit in the circuit
- ABS pump motor malfunction
How to Fix
- Check fuses and relays related to ABS
- Inspect the wiring harness for damage
- Check the voltage at the ABS pump motor terminals
- If necessary, replace the ABS pump motor
Related codes
Error C05A5 by Vehicle Brand
FAQ
What does the C05A5 code mean?
C05A5 is an OBD-II diagnostic trouble code that indicates: ABS Pump Motor Supply Voltage B Circuit/Open
What causes a C05A5 error code?
The most common causes of C05A5 include: Broken wiring harness to ABS pump motor; Faulty relay or power supply fuse; Short circuit in the circuit; ABS pump motor malfunction.
How do I fix a C05A5 diagnostic trouble code?
To fix C05A5: Check fuses and relays related to ABS. Inspect the wiring harness for damage. Check the voltage at the ABS pump motor terminals. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C05A5?
Limited driving only, diagnose soon
How much does it cost to fix C05A5?
The estimated repair cost for C05A5 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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