P2D09

Motor Electronics Coolant Pump B Control Module Overtemperature

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$17–89 (est.)

Symptoms

Engine overheating
Turning on the temperature warning light
Reduced engine power
Unstable operation of the cooling system
Cooling pump noise

Causes

Low coolant level
Radiator fan malfunction
Module wiring problems
Cooling system clogged
Main coolant pump failure

How to Fix

Check the level and condition of the coolant
Diagnose radiator fan operation
Check connections and wiring of the control module
Clean the cooling system if necessary
Testing and replacement of pumps when faults are identified

Related codes

P2D08 P2D0A P2181