What are the common causes of P0C76?

A hybrid battery pack that will not release charge. An inverter fault limiting discharge. A motor or generator fault loading the system. A battery pack cooling problem. A battery management system holding the pack.

Read hybrid battery state of charge and discharge data on a scan tool. Check the inverter for faults. Check the motor and generator for faults. Verify the battery pack cooling system. Service the failed component once isolated. Clear the code and retest.

P0C76

Hybrid/EV Battery System Discharge Time Too Long

System: Powertrain control (P code)
Lamp: Check Engine Light
Category: Powertrain - Hybrid Propulsion

What it means

P0C76 means Hybrid/EV Battery System Discharge Time Too Long.

Check these first

A hybrid battery pack that will not release charge
An inverter fault limiting discharge
A motor or generator fault loading the system
A battery pack cooling problem
A battery management system holding the pack

What to do next

Read hybrid battery state of charge and discharge data on a scan tool
Check the inverter for faults
Check the motor and generator for faults
Verify the battery pack cooling system
Service the failed component once isolated
Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.