P2CB2

Charge Air Cooler Coolant Pump B Underspeed

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced engine power
Increased fuel consumption
Engine overheating
Detonation (knocking) in the engine
Check Engine Light Is On

Causes

Coolant pump malfunction
Problems with electrical wiring to the pump
Low coolant level
Clogged or damaged intercooler radiator
Faulty pump relay or fuse

How to Fix

Check coolant level
Diagnose the coolant pump
Check the integrity of wiring and connections
Check the functionality of the relays and fuses
If necessary, replace the coolant pump

Related codes

P2CB1 P2CB3 P2CB4