P0A79
Drive Motor B Inverter Performance
P0A79 is an OBD-II diagnostic trouble code meaning: Drive Motor B Inverter Performance. Common causes: motor inverter fault b, problems with the wiring harness or connectors. Estimated repair cost: $167–556.
Symptoms
- Hybrid system power reduction
- Check Engine light comes on
- The vehicle goes into emergency mode
- Unusual noises from the electric motor
- Reduced performance of the hybrid system
Causes
- Motor inverter fault B
- Problems with the wiring harness or connectors
- Motor fault
- Problems with the inverter cooling system
- Control system software errors
How to Fix
- Check the condition of wiring harnesses and connectors
- Check the inverter cooling system
- Scan the system for additional errors
- Check the performance of the electric motor
- Replace the faulty inverter if necessary
Related codes
Error P0A79 by Vehicle Brand
FAQ
What does the P0A79 code mean?
P0A79 is an OBD-II diagnostic trouble code that indicates: Drive Motor B Inverter Performance
What causes a P0A79 error code?
The most common causes of P0A79 include: Motor inverter fault B; Problems with the wiring harness or connectors; Motor fault; Problems with the inverter cooling system.
How do I fix a P0A79 diagnostic trouble code?
To fix P0A79: Check the condition of wiring harnesses and connectors. Check the inverter cooling system. Scan the system for additional errors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0A79?
Do not drive — repair immediately
How much does it cost to fix P0A79?
The estimated repair cost for P0A79 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
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