OBD Guide

P245B

EGR Cooler Bypass Control Circuit Range/Performance Bank 1

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine idling
  • Dips during acceleration

Causes

  • EGR cooler bypass solenoid valve malfunction
  • Open or short circuit in control circuit
  • Problems with the wiring harness or connectors
  • Mechanical failure of the bypass valve
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the condition of the EGR cooler bypass solenoid valve
  2. Check the integrity of the control circuit and the condition of the connectors
  3. Check the resistance and functionality of the valve
  4. If necessary, replace the solenoid valve or repair the circuit
  5. Reset the error code and check if it appears again

Related codes

Error P245B by Vehicle Brand