OBD Guide

P024C

Charge Air Cooler Bypass Position Sensor A Circuit

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–200 (est.)

Symptoms

  • Reduced engine power
  • Unstable operation of the boost system
  • Increased charge air temperature
  • Check Engine Light Illuminates
  • Deteriorating fuel economy

Causes

  • Bypass valve position sensor malfunction
  • Open or short circuit in the sensor circuit
  • Oxidation of the sensor connector
  • Mechanical damage to the sensor
  • ECU malfunction (rare)

How to Fix

  1. Read error codes and check for adjacent codes
  2. Check the 5 V supply voltage at the sensor connector
  3. Measure the output voltage of the sensor at different valve positions
  4. Check the wiring harness for opens and shorts
  5. Clean the sensor connector
  6. If necessary, replace the position sensor or bypass valve assembly

Related codes

Error P024C by Vehicle Brand