U0157
Lost Communication With Information Center B
Communication network (CAN bus)
Generic OBD-II
Low
What it means
U0157 means the network has lost communication with information center B — a driver information display module. The engine, brakes, and drivetrain are unaffected, so the car drives normally; you simply lose the messages, menus, and readouts that display provides. It usually traces to a power/ground loss, a wiring or connector fault, a blown fuse, or a failed display module.
Low
Can I keep driving? Yes — this affects a driver information display, not the engine or brakes; the car drives normally, you just lose the messages and readouts that display provides.
Common symptoms
What you'll notice
- Information center/display blank, frozen, or not updating
- Missing warning messages, trip data, or menus normally shown on that display
- Other modules logging lost-communication codes for information center B
- Display works intermittently
Common causes
Most likely first
- Loss of power or ground to the information center display moduleLikely
- Wiring or connector fault at the module (opens, corrosion, damage)Common
- CAN bus wiring fault on the branch feeding the displayCommon
- Blown fuse for the display circuitLess often
- Failed information center moduleLess often
How to diagnose & fix
Work through it in order
- Scan all modules to confirm information center B is the one offline.
- Check the fuse, power, and ground for the display module.
- Inspect the module wiring and connector for damage or corrosion.
- Test CAN bus continuity between the display and the network.
- If supply and wiring are good, the display module is likely failed — replace and program as needed, then re-test.
FAQ
Quick answers
Is it safe to drive with U0157?+
Yes. This is an information display, so drivability and braking are unaffected. The main downside is losing the messages and readouts that display normally shows, including some warning prompts.
Can I just clear U0157?+
It clears, but returns if there's a wiring, power, or module fault. If it was a momentary glitch it may stay away; recurring codes need the cause fixed.
Related codes
Often seen with U0157
Read & clear U0157 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX