OBD Guide

P2C25

Exhaust Heat Exchanger Exhaust Bypass Valve A Position Sensor Circuit High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Deterioration of the heating system
  • Increased fuel consumption
  • Unstable engine operation at idle
  • Reduced efficiency of the heat recirculation system

Causes

  • Valve position sensor malfunction
  • Open or short circuit in the sensor circuit
  • Wiring Harness Problems
  • Bypass valve failure
  • Corrosion or poor contact in connectors

How to Fix

  1. Check the continuity of the position sensor circuit
  2. Check connectors and connections for corrosion
  3. Test the position sensor with a multimeter
  4. Replace position sensor if necessary
  5. Check and replace bypass valve if necessary

Related codes

Error P2C25 by Vehicle Brand