Code result
C0269
Brake Vacuum Sensor
Moderate severity
What it means
The brake control module has detected an implausible signal from the vacuum sensor on the brake booster. Modern systems monitor booster vacuum to ensure brake assist is available, especially with stop-start engines and electric vacuum pumps.
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
Vacuum sensor failed
highOne of the most commonly reported causes for this code — check this first.
Leak in vacuum supply line
mediumA plausible cause — test and verify before replacing parts.
Vacuum pump weak
lowLess common, but worth ruling out after the more likely causes.
Related help
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