OBD Guide

P2ACB

Charge Air Cooler Coolant Temperature Sensor B Intermittent/Erratic

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

Symptoms

  • Unstable engine operation
  • Power reduction
  • Increased fuel consumption
  • Check Engine Light Illuminates
  • Possible misfires

Causes

  • Poor contact in the sensor connector
  • Open or shorted wiring harness
  • Malfunction of the temperature sensor itself
  • Circuit Grounding Problems
  • Contact corrosion

How to Fix

  1. Check connections and sensor connector
  2. Test sensor resistance
  3. Check the integrity of the wires in the circuit
  4. Replace sensor if necessary
  5. Clean contacts from corrosion

Related codes

Error P2ACB by Vehicle Brand