U3000 code: Control Module

What the code means

Control Module. Generic meaning per SAE J2012 (the same for all makes).

How to read U3000: the letter U means network communication between modules; the second digit 3 marks a generic SAE code shared by all makes; the last three characters 000 identify the specific fault.

Lost communication codes (U0xxx) mean one module cannot hear another on the data bus. The cause can be the module itself, its power or ground, or a damaged wiring harness. After a crash this is a typical trace: the impact tears wiring in the rail, fender or rocker and modules drop off the network.

Key figures

Complaints with this code

241

after a crash

3 (1%)

Models

46

Model years

1991–2026

Which models and years

Models whose owners name this code (46). Years link to the model year problems page.

Components named together with the code

Component as the owner filed it (one complaint can list several).

• Forward collision avoidance 109
• Steering 102
• Lane departure 79
• Electrical system 43
• Service brakes 13
• Other 10
• Air bags 5
• Vehicle speed control 5

Complaints by model year

• 1991 1
• 2010 10
• 2011 20
• 2012 20
• 2013 28
• 2014 14
• 2015 5
• 2016 3
• 2017 8
• 2018 28
• 2019 40
• 2020 33
• 2021 12
• 2022 14
• 2024 1
• 2025 2
• 2026 2

What to do if an auction car has this code

• Check wiring harnesses in the impact zone: rail, fender, rocker, pillar.
• Check the battery and grounds: low voltage triggers false lost communication codes.
• Budget a network scan: a missing module may be intact while its wiring is damaged.

What owners report

Excerpts of owner complaints in the original wording. Owner statements not verified by the regulator; personal data removed.

• Inspection revealed DTC codes for power steering of U0420:00 (invalid data received from power steering module) and U3000:49 (control module internal malfunction). Scanner evidences power steering position sensor data not being reported. Vehicle VIN indicates that it was included in NHTSA recall 21V455000.

  GMC Yukon 2021 · 2022-09 · crash

• Electric power steering failed. The following ford error or fault codes were identified: U3000:49-48 and U3000:53-c8. Ford dealership advised replacement cost would be approx. $2,600. Vehicle is a 2013 ford focus ev with approx. 60k miles.

  Ford Focus 2013 · 2020-01 · crash

• "adaptive steering fault service required" this error pop up came on every time when car start's.. I start to look what causing it, and found that I'm getting present error is secm module U3000 or "internal electronic failure".

  Lincoln Continental 2017 · 2019-01 · crash

Related codes

• U0073Control Module Communication Bus A Off
• U0140Lost Communication With Body Control Module
• U3003Battery Voltage
• U0001High Speed CAN Communication Bus
• U0422Invalid Data Received From Body Control Module
• U0002High Speed CAN Communication Bus Performance
• U0146Lost Communication With Serial Data Gateway…
• U0141Lost Communication With Body Control Module A
• U3006Control Module Input Power A Circuit/Open
• U0010Medium Speed CAN Communication Bus
• U0029Vehicle Communication Bus A Performance
• U3001Control Module Improper Shutdown Performance