U3006
Control Module Input Power A Circuit/Open
Open circuit on the input power line A of the control module. The module is missing or losing its main supply on this rail.
Open circuit on the input power line A of the control module. The module is missing or losing its main supply on this rail.
Common causes
- high
Supply fuse blown
One of the most commonly reported causes for this code — check this first.
Typical part cost: $10-330
- medium
Power wiring break
A plausible cause — test and verify before replacing parts.
Typical part cost: $10-330
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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
See related trouble codes
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Frequently asked questions
What does U3006 mean?
U3006 means "Control Module Input Power A Circuit/Open". It is a generic OBD-II code that points to a fault in the network / communication.
What are the most common causes of U3006?
supply fuse blown; power wiring break; gateway module routing can messages incorrectly — 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?
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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