U0699
Lost Communication with Coolant Pump F
U0699 is an OBD-II diagnostic trouble code meaning: Lost Communication with Coolant Pump F. Common causes: open or short circuit in the pump circuit, coolant pump malfunction. Estimated repair cost: $56–167.
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
Error U0699 by Vehicle Brand
FAQ
What does the U0699 code mean?
U0699 is an OBD-II diagnostic trouble code that indicates: Lost Communication with Coolant Pump F
What causes a U0699 error code?
The most common causes of U0699 include: Open or short circuit in the pump circuit; Coolant pump malfunction; Problems with the pump connector or contacts; Engine ECU malfunction.
How do I fix a U0699 diagnostic trouble code?
To fix U0699: Check fuses and relays associated with the pump. Inspect the wiring harness and pump connectors for damage.. Check the functionality of the coolant pump. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0699?
Limited driving only, diagnose soon
How much does it cost to fix U0699?
The estimated repair cost for U0699 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat