Code result

P0CE3

Hybrid/EV Battery Pack Coolant Control Valve A Control Circuit High

High severity

What it means

The HV battery pack coolant control valve A reports a control circuit high condition. Coolant routing to battery sections 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

  • Wire shorted to B+

    high

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

  • Coil open

    medium

    A plausible cause — test and verify before replacing parts.

  • Connector pins corroded - high contact resistance

    low

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

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