Code result

P25D1

Exhaust Camshaft Actuator Park Lock Control Circuit Low Bank 1

Moderate severity

What it means

The exhaust camshaft park-lock control line on bank 1 is below the expected voltage window. Usually a short to ground or a low-side driver shorted internally.

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

  • Control wire shorted to ground

    high

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

  • ECU low-side driver internally shorted

    medium

    A plausible cause — test and verify before replacing parts.

  • Connector pins corroded - high contact resistance

    low

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

Get the full diagnosis

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

Diagnose P25D1 free

No credit card required