Code result
P25C8
Brake Booster Temperature Sensor A Circuit Intermittent/Erratic
Moderate severity
What it means
The booster temperature signal jumps or drops out for short moments. Usually a loose connector or a chafed wire that opens during vibration or thermal expansion.
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
Sensor connector not fully seated or pin tension lost
highOne of the most commonly reported causes for this code — check this first.
Harness chafed against booster housing or pedal bracket
mediumA plausible cause — test and verify before replacing parts.
Connector with intermittent contact under vibration
lowLess common, but worth ruling out after the more likely causes.
Related help
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