Code result

P0818

Driveline Disconnect Switch Input Circuit

Moderate severity

What it means

General electrical fault on the driveline disconnect switch input — used on AWD/4WD vehicles to electrically disengage the rear or front axle for fuel economy. With the input invalid the disconnect cannot be commanded.

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

  • Open or shorted switch wire

    high

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

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