Code result
P2555
Throttle/Fuel Inhibit A Circuit High
Moderate severity
What it means
Throttle/fuel inhibit A reads stuck high — short to battery voltage. ECM cannot read the inhibit state and falls back to the safe default.
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
Inhibit wire shorted to battery voltage
highOne of the most commonly reported causes for this code — check this first.
Connector pins corroded - high contact resistance
lowLess common, but worth ruling out after the more likely causes.
Supply wire pinched against B+ source
lowLess common, but worth ruling out after the more likely causes.
Related help
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