Code result
P0883
TCM Power Input Signal High
Moderate severity
What it means
TCM main supply voltage exceeds the operating threshold, typically caused by a faulty voltage regulator on the alternator.
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
Alternator overcharging
highOne of the most commonly reported causes for this code — check this first.
Related help
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