Code result

P2CC3

Generator Voltage Sense Circuit B Low

High severity

What it means

The voltage sense circuit B for the generator reports a circuit b low 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 ground

    high

    One of the most commonly reported causes for this code — check this first.

  • Open in sense wire

    medium

    A plausible cause — test and verify before replacing parts.

  • Pack cell imbalance approaching service threshold

    low

    Less common, but worth ruling out after the more likely causes.

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