C1424 fault code: what it means

C1424: VDC sees an ECM fault. Hill hold and EyeSight may not work; check engine codes.

Chassis (brakes, steering, suspension) · Keep an eye on

Usual causes, most likely first

ECM fault codes
CAN fault

C1424 by make

Subaru

VDC sees an ECM fault. Hill hold and EyeSight may not work; check engine codes.

Usual causes: ECM fault codes; CAN fault

What the repair usually costs

Air-fuel ratio / front O2 sensor replace (upstream)NZ$270–NZ$750 · A$260–A$730
O2 sensor replace (downstream / after cat)NZ$180–NZ$480 · A$180–A$460
MAF (mass air flow) sensor replaceNZ$170–NZ$660 · A$160–A$600
Diagnostic scan, fault code read and report (warning light on)NZ$70–NZ$140 · A$80–A$150

Not sure what C1424 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.