U0298 fault code: what it means

U0298: BYD (SAE code): lost communication with DC/DC converter module.

Network (communication between modules) · Costly if missed

Usual causes, most likely first

1. DC/DC power/earth
2. CAN wiring

U0298 by make

What the repair usually costs

• EV on-board charger / ICCU / charging module replace (Hyundai / Kia / MG / Tesla)NZ$3,150–NZ$7,880 · A$3,060–A$7,650

Not sure what U0298 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.