What are the common causes of P0D11?

An open in the battery charging negative contactor A control circuit. A failed battery energy control module. A high voltage contactor that will not close. An open or short in the battery energy control module harness.

Read hybrid/EV battery contactor states on a scan tool. Check the negative contactor state with the ignition cycled. Inspect the battery energy control module connector and harness. Test the negative contactor A control circuit for open and short faults. Replace the battery energy control module if the circuit tests good. Clear the code and retest.

P0D11

Battery Charging System Negative Contactor A Control Circuit/Open

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

What it means

P0D11 means Battery Charging System Negative Contactor A Control Circuit/Open.

Check these first

An open in the battery charging negative contactor A control circuit
A failed battery energy control module
A high voltage contactor that will not close
An open or short in the battery energy control module harness

What to do next

Read hybrid/EV battery contactor states on a scan tool
Check the negative contactor state with the ignition cycled
Inspect the battery energy control module connector and harness
Test the negative contactor A control circuit for open and short faults
Replace the battery energy control module if the circuit tests good
Clear the code and retest

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Updated

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