B012B: DC/AC Converter A High Voltage Power Outlet “E” Circuit/Open
Severity
Low
System
Body Electrical
What Does B012B Mean?
B012B is a diagnostic trouble code indicating: DC/AC Converter A High Voltage Power Outlet “E” Circuit/Open. This code relates to the body electrical system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Symptoms of B012B
- ⚠️ Check Engine Light (MIL) illuminated
- ⚠️ Erratic DC/AC Converter A High Voltage Power Outlet “E” readings
- ⚠️ Related system operating intermittently
- ⚠️ Interior or exterior lighting malfunction
Common Causes
- 🔍 Wiring issue in DC/AC Converter A High Voltage Power Outlet “E” circuit (damaged, chafed, or corroded)
- 🔍 Faulty DC/AC Converter A High Voltage Power Outlet “E” connector or terminal
- 🔍 Failed DC/AC Converter A High Voltage Power Outlet “E”
- 🔍 ECM/PCM connection issue
Frequently Asked Questions
What does B012B mean?
B012B indicates: DC/AC Converter A High Voltage Power Outlet “E” Circuit/Open. The vehicle's computer has detected that the DC/AC Converter A High Voltage Power Outlet “E” is not operating within its expected parameters and stored this diagnostic trouble code.
Can I drive with code B012B?
Yes, B012B is generally safe to drive with in the short term. However, it should still be addressed to pass emissions testing and prevent potential secondary issues.
How much does it cost to fix B012B?
Repair costs for B012B typically range from $80 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.
What To Do Next
Possible Fixes
- 🔧 Inspect and repair DC/AC Converter A High Voltage Power Outlet “E” wiring and connectors
- 🔧 Replace faulty DC/AC Converter A High Voltage Power Outlet “E”
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.