Credov

P0630 fault code: what it means

P0630: VIN not programmed or mismatched in the ECM. Common after a second-hand ECM is fitted.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

  1. replacement ECM not programmed to the car
  2. ECM swapped from another car
  3. programming not finished

P0630 by make

Hyundai

VIN not programmed or mismatch in the engine computer. Usually after a computer was replaced.

Usual causes: replacement ECU not coded; wrong ECU fitted

Kia

VIN not programmed or mismatch in the engine computer. Usually after a computer was replaced.

Usual causes: replacement ECU not coded; wrong ECU fitted

Not sure what P0630 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.