OBD Guide

P2CB3

Charge Air Cooler Coolant Pump B Stuck/Stalled

P2CB3 is an OBD-II diagnostic trouble code meaning: Charge Air Cooler Coolant Pump B Stuck/Stalled. Common causes: coolant pump stuck, open or short circuit in the pump circuit. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Reduced engine power
  • Increased charge air temperature
  • Check Engine Light Is On
  • Unstable engine operation under load
  • Possible misfires

Causes

  • Coolant pump stuck
  • Open or short circuit in the pump circuit
  • Faulty relay or fuse
  • Problems with the engine control unit
  • Low coolant level

How to Fix

  1. Check the level and condition of the coolant
  2. Diagnose the electrical circuit of the pump
  3. Check fuses and relays
  4. Replace faulty coolant pump
  5. Check the operation of the system after repair

Related codes

Error P2CB3 by Vehicle Brand

FAQ

What does the P2CB3 code mean?

P2CB3 is an OBD-II diagnostic trouble code that indicates: Charge Air Cooler Coolant Pump B Stuck/Stalled

What causes a P2CB3 error code?

The most common causes of P2CB3 include: Coolant pump stuck; Open or short circuit in the pump circuit; Faulty relay or fuse; Problems with the engine control unit.

How do I fix a P2CB3 diagnostic trouble code?

To fix P2CB3: Check the level and condition of the coolant. Diagnose the electrical circuit of the pump. Check fuses and relays. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2CB3?

Limited driving only, diagnose soon

How much does it cost to fix P2CB3?

The estimated repair cost for P2CB3 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat