AI DamageU3006 code: Control Module Input Power A Circuit/Open
Code U3006 is named in 6 US owner complaints. Models: 4, model years 2016–2020.
What the code means
Control Module Input Power A Circuit/Open. Generic meaning per SAE J2012 (the same for all makes).
How to read U3006: 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 006 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
- 6
- Models
- 4
- Model years
- 2016–2020
Which models and years
Models whose owners name this code (4). 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).
Complaints by model year
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.
Car will still function normally and codes will go off and come back intermittently. Also while reading the codes it will get a U3006-16 code for low voltage on the ecm. Confirmed battery is good under load test and alternator is charging at 14.2 volts.
Occurred multiple times in April/May of 2024 and Vehicle Stability Assist Code U3006-16 appeared on the Infotainment screen. Taken to dealer who was unable to replicate the problem. The U3006-16 code appeared again in February 2025 but the car did not experience the restart issue at that time.
All the associated warnings are on dash, diagnosed at local Honda dealership with code U3006-16. Advised multi camera failure and requested $1600 to repair. Immediate after I am now getting a transmission warning problem on dash.
Related codes
- U3000Control Module
- 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
- U0010Medium Speed CAN Communication Bus
- U0029Vehicle Communication Bus A Performance
- U3001Control Module Improper Shutdown Performance
Sources: public official US data (owner complaints) and the SAE J2012 standard. Complaints are owner statements not verified by the regulator. A code from a complaint does not replace a scan tool diagnosis. Data updated 2026-11-10.