U0699

Lost Communication with Coolant Pump F

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Engine overheating
Unstable engine temperature
Check Engine Light Is On
Reduced interior heating efficiency
Error message on the dashboard

Causes

Open or short circuit in the pump circuit
Coolant pump malfunction
Problems with the pump connector or contacts
Engine ECU malfunction
Software error in the control system

How to Fix

Check fuses and relays associated with the pump
Inspect the wiring harness and pump connectors for damage.
Check the functionality of the coolant pump
Scan the system for additional errors
If necessary, replace the pump or repair the electrical wiring

Related codes

U0698 U0700 U0100