OBD Guide

B012A

DC/AC Converter A High Voltage Power Outlet D Circuit/Open

B012A is an OBD-II diagnostic trouble code meaning: DC/AC Converter A High Voltage Power Outlet D Circuit/Open. Common causes: broken wiring harness, dc/ac converter malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • No power at high voltage outlets
  • Malfunction indicator light comes on
  • Reduced electrical system efficiency

Causes

  • Broken wiring harness
  • DC/AC converter malfunction
  • Poor contact in connectors
  • Short circuit in the circuit

How to Fix

  1. Check the wiring harness for breaks and damage
  2. Check the contacts in the converter connectors
  3. Test the DC/AC converter for serviceability
  4. Replace damaged components

Related codes

Error B012A by Vehicle Brand

FAQ

What does the B012A code mean?

B012A is an OBD-II diagnostic trouble code that indicates: DC/AC Converter A High Voltage Power Outlet D Circuit/Open

What causes a B012A error code?

The most common causes of B012A include: Broken wiring harness; DC/AC converter malfunction; Poor contact in connectors; Short circuit in the circuit.

How do I fix a B012A diagnostic trouble code?

To fix B012A: Check the wiring harness for breaks and damage. Check the contacts in the converter connectors. Test the DC/AC converter for serviceability. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B012A?

Limited driving only, diagnose soon

How much does it cost to fix B012A?

The estimated repair cost for B012A is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat