P0351

What it means

An electrical fault is detected in both the primary and the secondary circuit of ignition coil A (cylinder 1). The ECU cannot drive the coil correctly, so the cylinder served by coil A misfires or does not fire at all. Causes: an open or shorted primary control wire, an internal coil winding fault, a failed igniter/driver, or wiring or connector damage at the coil.

Is it safe to drive?

This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.

Most likely causes

• Coil primary winding open or shorted

  high

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

• Wiring or connector fault

  medium

  A plausible cause — test and verify before replacing parts.

Related help

• Full P0351 diagnosis, causes & costs
• How to read check engine light codes
• Is it safe to drive with the light on?