P2E82

Cold Start Engine Coolant Pump Overspeed

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$39–167 (est.)

Symptoms

Increased noise level from the cooling pump
Unstable engine warming up after a cold start
Floating idle speed
Activating engine emergency mode
The CHECK ENGINE indicator light comes on.

Causes

Electrical coolant pump malfunction
Problems with wiring to the cooling pump
Pump control module malfunctions
Low voltage in the on-board network
Software error in the engine control unit

How to Fix

Check the functionality of the coolant pump
Diagnose the power supply and pump control circuit
Check the condition of the wiring harness to the pump
Reset the error and check for its reappearance
If necessary, replace the coolant pump

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