U0648
Lost Communication With Motor Electronics Coolant Pump C
U0648 is an OBD-II diagnostic trouble code meaning: Lost Communication With Motor Electronics Coolant Pump C. Common causes: broken or damaged wiring to the pump, electronic coolant pump malfunction. Estimated repair cost: $56–167.
Symptoms
- Check Engine Light Is On
- Unstable operation of the cooling system
- Increased engine temperature
- Problems with interior heating
- Reduced engine power
Causes
- Broken or damaged wiring to the pump
- Electronic coolant pump malfunction
- Problems with connectors or contacts
- Failures in ECU software
- Pump power problems
How to Fix
- Check the integrity of wiring and connectors
- Diagnose the operation of the coolant pump
- Check fuses and relays associated with the pump
- Update or reflash the ECU software
- If necessary, replace the electronic coolant pump
Related codes
Error U0648 by Vehicle Brand
FAQ
What does the U0648 code mean?
U0648 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Motor Electronics Coolant Pump C
What causes a U0648 error code?
The most common causes of U0648 include: Broken or damaged wiring to the pump; Electronic coolant pump malfunction; Problems with connectors or contacts; Failures in ECU software.
How do I fix a U0648 diagnostic trouble code?
To fix U0648: Check the integrity of wiring and connectors. Diagnose the operation of the coolant pump. Check fuses and relays associated with the pump. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0648?
Limited driving only, diagnose soon
How much does it cost to fix U0648?
The estimated repair cost for U0648 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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