Code result

P0544

Exhaust Gas Temperature Sensor Circuit

Moderate severity

What it means

A general circuit fault is detected on the EGT sensor at bank 1 sensor 1 (typically just downstream of the turbo or before the catalyst). The ECU loses thermal protection feedback for the catalyst and DPF.

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 in sensor or wiring

    high

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

Get the full diagnosis

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

Diagnose P0544 free

No credit card required