U0698
Lost Communication with Coolant Pump E
U0698 is an OBD-II diagnostic trouble code meaning: Lost Communication with Coolant Pump E. Common causes: broken or damaged wires to the pump, electrical coolant pump malfunction. Estimated repair cost: $56–167.
Symptoms
- Engine overheating
- Unstable operation of the cooling system
- Check Engine Light Illuminates
- Reduced interior heating efficiency
- Floating engine speed
Causes
- Broken or damaged wires to the pump
- Electrical coolant pump malfunction
- Problems with the pump connector
- Faulty relay or fuse
- Problems with the engine ECU
How to Fix
- Check the integrity of the pump wires and connectors
- Check fuses and relays associated with the pump
- Test the operation of the coolant pump
- Check power and ground at the pump connector
- If necessary, replace the coolant pump
Related codes
Error U0698 by Vehicle Brand
FAQ
What does the U0698 code mean?
U0698 is an OBD-II diagnostic trouble code that indicates: Lost Communication with Coolant Pump E
What causes a U0698 error code?
The most common causes of U0698 include: Broken or damaged wires to the pump; Electrical coolant pump malfunction; Problems with the pump connector; Faulty relay or fuse.
How do I fix a U0698 diagnostic trouble code?
To fix U0698: Check the integrity of the pump wires and connectors. Check fuses and relays associated with the pump. Test the operation of the coolant pump. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0698?
Limited driving only, diagnose soon
How much does it cost to fix U0698?
The estimated repair cost for U0698 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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