Code result
P2CC4
Generator Voltage Sense Circuit B High
High severity
What it means
The voltage sense circuit B for the generator reports a circuit b high condition. Generator output regulation may be impaired.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Sense wire shorted to B+
highOne of the most commonly reported causes for this code — check this first.
Generator regulator overvoltage
mediumA plausible cause — test and verify before replacing parts.
Pack cell imbalance approaching service threshold
lowLess common, but worth ruling out after the more likely causes.
Related help
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