U0116
Lost Communication With Coolant Temperature Control Module
U0116 is an OBD-II diagnostic trouble code meaning: Lost Communication With Coolant Temperature Control Module. Common causes: open or short circuit in the module circuit, malfunction of the coolant temperature control module. Estimated repair cost: $33–111.
Symptoms
- Check Engine Light Is On
- Incorrect operation of cooling fans
- Engine overheating
- Reduced cooling system efficiency
- Increased fuel consumption
Causes
- Open or short circuit in the module circuit
- Malfunction of the coolant temperature control module
- Problems with the wiring harness or connectors
- Failures in ECU software
- Module power problems
How to Fix
- Check the integrity of the circuit and module connectors
- Check the power supply and ground of the module
- Scan the module for errors
- If necessary, replace the temperature control module
- Update ECU software if necessary
Related codes
Error U0116 by Vehicle Brand
FAQ
What does the U0116 code mean?
U0116 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Coolant Temperature Control Module
What causes a U0116 error code?
The most common causes of U0116 include: Open or short circuit in the module circuit; Malfunction of the coolant temperature control module; Problems with the wiring harness or connectors; Failures in ECU software.
How do I fix a U0116 diagnostic trouble code?
To fix U0116: Check the integrity of the circuit and module connectors. Check the power supply and ground of the module. Scan the module for errors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0116?
Limited driving only, diagnose soon
How much does it cost to fix U0116?
The estimated repair cost for U0116 is $33–111. Actual cost depends on your vehicle, location, and labor rates.
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