Code result

P2632

Fuel Pump B Control Circuit / Open

Moderate severity

What it means

The controller cannot drive the secondary fuel pump (B). Common on dual-tank trucks, GDI lift-pump systems, or alt-fuel installations — fault stops fuel delivery from this stage.

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.

  • Failed pump relay

    medium

    A plausible cause — test and verify before replacing parts.

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