OBD Guide

P2680

Coolant Degassing Valve Control Circuit High

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Engine overheating
  • Unstable engine operation
  • Increased fuel consumption
  • Check Engine Light Illuminates
  • Reduced engine power

Causes

  • Coolant degassing valve malfunction
  • Open or short circuit in control circuit
  • Poor contact in circuit connectors
  • Engine control unit (ECU) malfunction
  • Corroded or damaged wires

How to Fix

  1. Check valve control circuit integrity
  2. Inspect connectors and contacts for corrosion or damage
  3. Check the resistance and operation of the degassing valve
  4. If necessary, replace the degassing valve
  5. Check and, if necessary, replace damaged wires or connectors

Related codes

Error P2680 by Vehicle Brand