U1235 fault code: what it means

U1235: Lost communication with EyeSight. Pre-collision braking and adaptive cruise are disabled.

Network (communication between modules) · Costly if missed

Usual causes, most likely first

1. EyeSight stereo camera power or connector
2. CAN wiring fault
3. camera unit

U1235 by make

Not sure what U1235 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.