C1E2E fault code: what it means

C1E2E: BYD: adaptive cruise (ACC) braking request invalid. Cruise/AEB features may switch off.

Chassis (brakes, steering, suspension) · Costly if missed

Usual causes, most likely first

front radar or camera fault
CAN signal fault
module software

C1E2E by make

BYD

BYD: adaptive cruise (ACC) braking request invalid. Cruise/AEB features may switch off.

Usual causes: front radar or camera fault; CAN signal fault; module software

Not sure what C1E2E 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.