Code result

P261A

Coolant Pump B Control Circuit / Open

Moderate severity

What it means

The controller cannot drive the second electric coolant pump (B). Often used for aftertreatment, turbo cool-down, or hybrid battery loops — fault stops circulation in that loop.

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

  • Open pump motor winding

    high

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

  • Broken control wire to the pump

    medium

    A plausible cause — test and verify before replacing parts.

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