P0105 fault code: what it means

P0105: MAP / barometric pressure sensor circuit fault.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

loose or corroded MAP connector
failed MAP sensor
shared 5 V reference fault

P0105 by make

Land Rover

Manifold or barometric pressure sensor circuit fault.

Usual causes: faulty MAP sensor; wiring fault; split hose

Mercedes-Benz

Manifold or barometric pressure sensor circuit fault.

Usual causes: faulty pressure sensor; wiring fault; split hose

Volvo

Manifold or barometric pressure sensor circuit fault.

Usual causes: faulty MAP sensor; wiring fault; split vacuum hose

What the repair usually costs

CVT valve body replacement (remanufactured, in car)NZ$1,280–NZ$2,420 · A$1,200–A$2,400
Intercooler or boost hose replacementNZ$250–NZ$1,780 · A$250–A$1,710

Not sure what P0105 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.