Code result
P218C
Throttle/Fuel Inhibit B Circuit Range/Performance
Moderate severity
What it means
Throttle/fuel inhibit B signal reads in range but plausibility fails — does not assert/release as expected.
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 logic mismatch
highOne of the most commonly reported causes for this code — check this first.
Sensor element aged beyond calibration window
lowLess common, but worth ruling out after the more likely causes.
Sensor mounting loose - signal damping
lowLess common, but worth ruling out after the more likely causes.
Related help
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