Code result

P0545

Exhaust Gas Temperature Sensor Circuit Low

Moderate severity

What it means

The exhaust gas temperature sensor signal at bank 1, sensor 1 is below the lower diagnostic threshold. Indicates short to ground or sensor fault.

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

  • EGT sensor internally faulty

    high

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

  • Signal wire shorted to ground

    medium

    A plausible cause — test and verify before replacing parts.

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