Code Definition

U3006 — Input Power A

System: Network Communication  |  Type: Manufacturer-Specific  |  Make: Ford

About U3006

U3006 is a manufacturer-specific network communication diagnostic trouble code recorded for Ford vehicles. It belongs to the U-prefix family of codes, which covers inter-module network communication (CAN, LIN, FlexRay, or similar) faults.

Scanning & clearing: Network (U) codes report communication faults between modules. When diagnosing U-codes, checking the vehicle's CAN bus integrity, supply/ground at each module, and reading all modules for related faults is usually the first step.

U3006 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

DTC U3006 is a manufacturer specific code set when a control module detects an abnormal condition on its primary input power supply circuit, referred to as Input Power A. The module monitors the voltage level, stability, and integrity of this feed, and logs this fault when the supply is missing, below the minimum threshold, above the maximum threshold, or intermittently unstable enough to affect normal operation. Unlike a general system voltage code, this points at the specific power feed circuit to that module, including its fuse, wiring, and connections. Symptoms can include the affected mod...

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