B0127

DC/AC Converter A High Voltage Power Outlet \"A\" Circuit/Open

Moderate severity

Open circuit on the high-voltage power outlet "A" of DC/AC converter A. The outlet supplies 110/230 V AC from the HV battery on EVs/hybrids (vehicle-to-load).

Common causes

Outlet wiring open
One of the most commonly reported causes for this code — check this first.
high
Typical part cost: $220-2200
Pin pushed back out of connector body
Less common, but worth ruling out after the more likely causes.
low
Typical part cost: $220-2200
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First things to check

1Confirm the code with a scan tool and check for additional related codes.
2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does B0127 mean?

B0127 means "DC/AC Converter A High Voltage Power Outlet \"A\" Circuit/Open". It is a generic OBD-II code that points to a fault in the body.

What are the most common causes of B0127?

outlet wiring open; pin pushed back out of connector body; cracked solder joint inside the module or sensor — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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