Code result

P25C6

Brake Booster Temperature Sensor A Circuit Low

Moderate severity

What it means

The booster temperature signal is below the lower diagnostic threshold. Typical causes are a shorted sensor element or a short to ground in the harness.

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

  • Internal short in the sensor element

    high

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

  • Sensor signal wire shorted to ground

    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.

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