OBD Guide

P2600

Coolant Pump A Control Circuit/Open

P2600 is an OBD-II diagnostic trouble code meaning: Coolant Pump A Control Circuit/Open. Common causes: open or short circuit in wiring, pump relay fault. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$28–89 (est.)

Symptoms

  • Engine overheating
  • Check Engine Light Turning On
  • Reduced cooling efficiency
  • Noises from the coolant pump
  • Loss of engine power

Causes

  • Open or short circuit in wiring
  • Pump relay fault
  • Blown fuse
  • Failure of the electric coolant pump
  • Connector problems or contact corrosion

How to Fix

  1. Check the pump circuit fuse
  2. Diagnose the pump control relay
  3. Check the integrity of the wiring harness
  4. Test the resistance of the pump motor
  5. Check connectors for corrosion and tight connections

Related codes

Error P2600 by Vehicle Brand

FAQ

What does the P2600 code mean?

P2600 is an OBD-II diagnostic trouble code that indicates: Coolant Pump A Control Circuit/Open

What causes a P2600 error code?

The most common causes of P2600 include: Open or short circuit in wiring; Pump relay fault; Blown fuse; Failure of the electric coolant pump.

How do I fix a P2600 diagnostic trouble code?

To fix P2600: Check the pump circuit fuse. Diagnose the pump control relay. Check the integrity of the wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2600?

Do not drive — repair immediately

How much does it cost to fix P2600?

The estimated repair cost for P2600 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat