P26D0

Engine Coolant Pump Control Module System Voltage Low

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Engine overheating
Unstable operation of the coolant pump
Check Engine Light Is On
Floating motor temperature
Loss of engine power

Causes

Pump control module malfunction
Problems with wiring or connectors
Low voltage in the on-board network
Faulty relay or fuse
Circuit Grounding Problems

How to Fix

Check voltage at pump control module
Inspect wiring and connectors for damage
Check the condition of the relays and fuses
Test the pump control module
Check the quality of the circuit grounding

Related codes

P26D1 P26D2 P26D3