OBD Guide

P2ABB

Wastegate Position Sensor B Circuit Low

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Reduced engine power
  • Incorrect turbocharging operation
  • Check engine light is on
  • Unstable idling

Causes

  • Wastegate B Position Sensor Malfunction
  • Open or short circuit in the circuit
  • Connection problems or corrosion of connectors
  • Engine control unit malfunction

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect connectors and contacts for corrosion
  3. Test Wastegate Position Sensor B
  4. Replace sensor if necessary
  5. Check and, if necessary, update the ECU firmware

Related codes

Error P2ABB by Vehicle Brand