P0C79
Drive Motor A Inverter Voltage Too High
P0C79 is an OBD-II diagnostic trouble code meaning: Drive Motor A Inverter Voltage Too High. Common causes: motor inverter fault a, problems with high voltage battery. Estimated repair cost: $167–889.
Symptoms
- Check Engine light comes on
- Reduced power or hybrid system failure
- The car goes into emergency mode
- Unusual sounds from the engine compartment
- Reduced performance of the hybrid system
Causes
- Motor inverter fault A
- Problems with high voltage battery
- Hybrid control system malfunction
- Damage to high voltage wires or connectors
- Software errors in the control unit
How to Fix
- Check the condition of the high-voltage battery
- Diagnose motor inverter A
- Check the integrity of high-voltage connections
- Update control unit software
- If necessary, replace the inverter or its components
Related codes
Error P0C79 by Vehicle Brand
FAQ
What does the P0C79 code mean?
P0C79 is an OBD-II diagnostic trouble code that indicates: Drive Motor A Inverter Voltage Too High
What causes a P0C79 error code?
The most common causes of P0C79 include: Motor inverter fault A; Problems with high voltage battery; Hybrid control system malfunction; Damage to high voltage wires or connectors.
How do I fix a P0C79 diagnostic trouble code?
To fix P0C79: Check the condition of the high-voltage battery. Diagnose motor inverter A. Check the integrity of high-voltage connections. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0C79?
Do not drive — repair immediately
How much does it cost to fix P0C79?
The estimated repair cost for P0C79 is $167–889. Actual cost depends on your vehicle, location, and labor rates.
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