Code result

P240D

Alternative Fuel Low Pressure System Leak

Moderate severity

What it means

Alternative Fuel Low Pressure System Leak: a leak has been detected in this brake-hydraulic circuit, which reduces braking pressure. Safety-critical.

Is it safe to drive?

Use caution

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

  • Hose or fitting leak

    high

    One of the most commonly reported causes for this code — check this first.

Get the full diagnosis

Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.

Diagnose P240D free

No credit card required