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B2815 fault code: what it means

B2815: Hyundai: chassis CAN (C-CAN) error. Can bring up several warning lights.

Body · Costly if missed

Usual causes, most likely first

  1. CAN wiring
  2. failed module
  3. 12V supply

B2815 by make

Hyundai

Hyundai: chassis CAN (C-CAN) error. Can bring up several warning lights.

Usual causes: CAN wiring; failed module; 12V supply

Not sure what B2815 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.