Code result

P0A8E

14 Volt Power Module System Voltage High

High severity

What it means

The 14V DC/DC converter module reports a "system voltage high" condition. 12V vehicle electrical supply 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

  • Output regulator overshoots

    high

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

  • Voltage feedback lost

    medium

    A plausible cause — test and verify before replacing parts.

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