Code result

P2B5D

Engine Coolant Flow Control Valve Position Sensor Circuit

Moderate severity

What it means

The engine coolant flow control valve reports a position sensor circuit condition. Coolant routing between engine and radiator branches cannot be commanded as expected.

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

  • Position sensor failed

    high

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

  • Wiring or connector fault

    medium

    A plausible cause — test and verify before replacing parts.

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