Code result

P26D3

Engine Coolant Pump Supply Voltage Circuit

Moderate severity

What it means

The dedicated supply voltage line to the coolant pump module is faulty. Pump cannot operate without battery feed.

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

  • Blown fuse on supply line

    high

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

  • High-resistance contact in supply harness

    medium

    A plausible cause — test and verify before replacing parts.

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