AI DamageU1120 code in owner complaints
Code U1120 is named in 11 US owner complaints. Models: 8, model years 2006–2020.
There is little data for this code or its meaning is ambiguous, so this page is not indexed.
What the code means
This is a manufacturer-specific code: the meaning depends on the make and sometimes on the year.
How to read U1120: the letter U means network communication between modules; the second digit 1 marks a manufacturer code whose meaning is set by the make; the last three characters 120 identify the specific fault.
Codes for cameras, radars, blind spot and parking sensors. These units sit in bumpers, grilles and mirrors, so even a light impact shifts them or breaks mounts. After bumper or windshield work they need calibration on a rig, which is a separate and noticeable cost.
Key figures
- Complaints with this code
- 11
- Models
- 8
- Model years
- 2006–2020
Which models and years
Models whose owners name this code (8). 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
- Locate cameras and radars in the bumper, grille, windshield and mirrors in the photos and check their mounts.
- Budget ADAS calibration after bumper repair or glass replacement.
What owners report
Excerpts of owner complaints in the original wording. Owner statements not verified by the regulator; personal data removed.
The check engine, ABS, traction control, and parking brake lights all illuminated. I took the vehicle to Advance Auto for an initial code scan and had error codes U1120 (lost wheel distance), U1110 (lost vehicle speed), and U0121 (lost communication system with ABS module).
At home, scanned for codes. In this order U0121 U1110 U1120 U11BC U12AB P057C (Brake Pedal Sensor Circuit Low) U11BF U0001 High Speed Can Communication Bus P0000
While driving dash starts blonking and several issues appeared. Stearing, traction control light, service key, abs, and others that I can't remember however showing 7 different codes P0133, U0101 U1110 U1120 I don't remember all of it. Reset computer and drive about 200 miles and same not sure what is wrong.
Related codes
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.