OBD Guide

P2BA2

Engine Coolant Pump Stuck/Stalled

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Engine overheating
  • Uneven heating of the interior
  • Check Engine Light Is On
  • Increased noise from the engine compartment
  • Reduced engine performance

Causes

  • Pump impeller jamming
  • Pump motor malfunction
  • Problems with wiring or connectors
  • Pump control module failure
  • Low coolant level

How to Fix

  1. Check the level and condition of the coolant
  2. Diagnose pump electrical connections
  3. Check fuses and pump relays
  4. Replacing a faulty coolant pump
  5. Reset code after repair

Related codes

Error P2BA2 by Vehicle Brand