All codes/P2600

P2600

Coolant Pump A Control Circuit / Open

Moderate severity

This code indicates coolant pump a control circuit / open. It relates to the auxiliary emission controls and may affect performance, emissions, or drivability depending on the exact failure.

Coolant Pump A Control Circuit / Open

Common causes

  • Sensor failure

    O2, NOx, pressure, or temperature sensors can drift or fail.

    medium

    Typical part cost: $100-400

  • Exhaust leak or restriction

    Leaks before sensors or a restricted exhaust can set emissions codes.

    medium

    Typical part cost: $100-400

  • See all causes + fix costs

    Create a free Wrenchify account to unlock the rest for P2600.

    Unlock causes

    Free forever · No credit card

First things to check

  1. 1Confirm the code with a scan tool and check for additional related codes.
  2. 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

Get the full step-by-step diagnosis

Create a free Wrenchify account to unlock the rest for P2600.

Unlock diagnosis

Free forever · No credit card

Related codes

See related trouble codes

Create a free Wrenchify account to unlock the rest for P2600.

Unlock related codes

Free forever · No credit card

Frequently asked questions

What does P2600 mean?

P2600 means "Coolant Pump A Control Circuit / Open". It is a generic OBD-II code that points to a fault in the auxiliary emission controls.

Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

Get the full P2600 diagnosis for your vehicle

Year, make, model + step-by-step repair help — free plan included.

Diagnose P2600