P0D0E: Battery Charging System Negative Contactor A Circuit

P0D0E is the general circuit code for negative contactor A of the charging system, which connects the minus side of the charging path – from DC inlet or on-board charger – to the traction battery. It is used when the module sees an electrical fault on that contactor that it does not classify more precisely. No manufacturer documents P0D0E publicly. A GM patent on battery disconnect diagnosis shows separate contactor pairs for fast and slow charging and judges each by its coil current, and CARB requires plug-in vehicles to monitor charging components. Welding or failure to close on the negative side are P0D0F/P0D10, driver faults P0D11–P0D14, the positive side P0D07, the main pack contactors P0AA3 ff. In most cases only charging is affected.

High severity. Can I keep driving?If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.

Symptoms

Charging not possible or aborted
Charging system warning in the instrument cluster

Most likely causes

Contactor coil open or shorted
Damaged wiring or corroded connector in the contactor branch
Fault in the module that drives and monitors the contactor

What to check, in order

Start with the simplest. You can tick off each step.

Read the codes with a hybrid-compatible scanner and write down the freeze frame data
Make sure the battery cooling air intake is clean
Check the 12 V auxiliary battery, which can also trigger warnings
Leave any high-voltage measurements to a specialized repair shop

What each character of P0D0E means

P: Powertrain: engine and transmission
0: Generic code: same on every make
D: Subsystem depends on the code range
0E: Specific fault in that system

Frequently asked questions

Can I keep driving with code P0D0E?

If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.

What causes code P0D0E?

The most common causes are: contactor coil open or shorted; damaged wiring or corroded connector in the contactor branch; fault in the module that drives and monitors the contactor.

Related codes

Sources

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.