Code result

P2305

Ignition Coil B Secondary Circuit

Moderate severity

What it means

The secondary side of ignition coil B is faulty. Spark energy at the corresponding spark plug is insufficient, producing misfires.

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

  • Worn spark plug

    high

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

  • Coil secondary failure

    medium

    A plausible cause — test and verify before replacing parts.

Get the full diagnosis

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

Diagnose P2305 free

No credit card required