P0C7A
Drive Motor B Inverter Voltage Too High
P0C7A is an OBD-II diagnostic trouble code meaning: Drive Motor B Inverter Voltage Too High. Common causes: motor inverter fault b, problems in the high voltage circuit. Estimated repair cost: $167–889.
Symptoms
- Check Engine light comes on
- Hybrid system power reduction
- The car goes into emergency mode
- Unusual sounds from an electric motor
- Problems with regenerative braking
Causes
- Motor inverter fault B
- Problems in the high voltage circuit
- Oxidation or damage to contacts
- Malfunction of voltage sensors
- HPCM module software error
How to Fix
- Check the condition of the high voltage circuit
- Test motor inverter B
- Check contacts and connections
- Update HPCM firmware (if available)
- Replace the faulty inverter if necessary
Related codes
Error P0C7A by Vehicle Brand
FAQ
What does the P0C7A code mean?
P0C7A is an OBD-II diagnostic trouble code that indicates: Drive Motor B Inverter Voltage Too High
What causes a P0C7A error code?
The most common causes of P0C7A include: Motor inverter fault B; Problems in the high voltage circuit; Oxidation or damage to contacts; Malfunction of voltage sensors.
How do I fix a P0C7A diagnostic trouble code?
To fix P0C7A: Check the condition of the high voltage circuit. Test motor inverter B. Check contacts and connections. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0C7A?
Do not drive — repair immediately
How much does it cost to fix P0C7A?
The estimated repair cost for P0C7A is $167–889. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat