Code result

P038A

Ignition I Control Signal Circuit/Open

High severity

What it means

The ignition I control signal circuit is open — typically the PCM drive line for the first ignition coil group has lost continuity.

Is it safe to drive?

No — stop driving

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

Most likely causes

  • Open wire between PCM and coil

    high

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

  • Pin pushed back out of connector body

    low

    Less common, but worth ruling out after the more likely causes.

  • Cracked solder joint inside the module or sensor

    low

    Less common, but worth ruling out after the more likely causes.

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