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P1545 fault code: what it means

P1545: Throttle control fault. High idle or bucking on and off the throttle; usually a dirty throttle body.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

  1. dirty or carboned throttle body
  2. throttle body wiring fault
  3. faulty throttle body

P1545 by make

Audi

Throttle control fault. High idle or bucking on and off the throttle; usually a dirty throttle body.

Usual causes: dirty or carboned throttle body; throttle body wiring fault; faulty throttle body

Skoda

Throttle control fault. High idle or bucking on and off the throttle; usually a dirty throttle body.

Usual causes: dirty or carboned throttle body; throttle body wiring fault; faulty throttle body

Volkswagen

Throttle control fault. High idle or bucking on and off the throttle; usually a dirty throttle body.

Usual causes: dirty or carboned throttle body; throttle body wiring fault; faulty throttle body

What the repair usually costs

Not sure what P1545 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.