B0129
DC/AC Converter A High Voltage Power Outlet C Circuit/Open
B0129 is an OBD-II diagnostic trouble code meaning: DC/AC Converter A High Voltage Power Outlet C Circuit/Open. Common causes: broken or damaged wiring harness, contact corrosion. Estimated repair cost: $56–333.
Symptoms
- Dashboard warning
- No power at high voltage outlet
- Reduced efficiency of auxiliary systems
Causes
- Broken or damaged wiring harness
- Contact corrosion
- DC/AC converter malfunction
- Problems with high voltage battery
How to Fix
- Check the integrity of the wiring harness
- Check contacts for corrosion
- Check the functionality of the DC/AC converter
- Check the condition of the high-voltage battery
- Replace faulty components
Related codes
Error B0129 by Vehicle Brand
FAQ
What does the B0129 code mean?
B0129 is an OBD-II diagnostic trouble code that indicates: DC/AC Converter A High Voltage Power Outlet C Circuit/Open
What causes a B0129 error code?
The most common causes of B0129 include: Broken or damaged wiring harness; Contact corrosion; DC/AC converter malfunction; Problems with high voltage battery.
How do I fix a B0129 diagnostic trouble code?
To fix B0129: Check the integrity of the wiring harness. Check contacts for corrosion. Check the functionality of the DC/AC converter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B0129?
Limited driving only, diagnose soon
How much does it cost to fix B0129?
The estimated repair cost for B0129 is $56–333. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat