P0C7B

Generator Inverter Voltage Too High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–889 (est.)

Symptoms

Check Engine light comes on
Reduced performance of the hybrid system
The car may go into emergency mode
Possible problems with charging the high-voltage battery
Increased fuel consumption

Causes

Generator inverter fault
Problems with high voltage battery
Malfunction of the hybrid control module (HCU)
Damage to high voltage wires or connectors
Software errors in the control system

How to Fix

Carry out diagnostics of the high-voltage system
Check the condition of the generator inverter
Test the high voltage battery
Check the integrity of high-voltage connections
Update HCU software if necessary

Related codes

P0C7A P0C7C P0A80