P2602

Coolant Pump A Control Circuit Low

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$33–167 (est.)

Symptoms

Engine overheating
Unstable engine operation
Turning on the Check Engine Light
Reduced engine power
Unusual noises from the coolant pump

Causes

Coolant pump malfunction
Open or short circuit in control circuit
Poor contact in pump connectors
Pump relay fault
Problems with the engine control module

How to Fix

Check the condition of the coolant pump
Inspect the control circuit for damage
Check connections and connectors of the pump
Test the pump relay
Diagnose the engine control module

Related codes

P2600 P2601 P2603