Code result
P278A
Kick Down Switch Circuit
High severity
What it means
The kick-down switch (under the accelerator pedal at full travel) circuit is faulty. The transmission cannot detect the driver's full-throttle downshift request.
Is it safe to drive?
No — stop driving
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.
Most likely causes
Switch contacts worn or corroded
highOne of the most commonly reported causes for this code — check this first.
Broken wire to switch
mediumA plausible cause — test and verify before replacing parts.
Related help
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