B0938
Coolant Level Sensor Circuit Low
B0938 is an OBD-II diagnostic trouble code meaning: Coolant Level Sensor Circuit Low. Common causes: coolant level sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $22–56.
Symptoms
- Low coolant level indicator is on
- False coolant level readings on the dashboard
- Engine overheating due to lack of coolant
Causes
- Coolant level sensor malfunction
- Open or short circuit in wiring harness
- Bad sensor connection
- Low coolant level in the system
How to Fix
- Check the coolant level and add if necessary
- Inspect the coolant level sensor for damage
- Check wiring harness and sensor connections
- Replace the coolant level sensor if necessary
Related codes
Error B0938 by Vehicle Brand
FAQ
What does the B0938 code mean?
B0938 is an OBD-II diagnostic trouble code that indicates: Coolant Level Sensor Circuit Low
What causes a B0938 error code?
The most common causes of B0938 include: Coolant level sensor malfunction; Open or short circuit in wiring harness; Bad sensor connection; Low coolant level in the system.
How do I fix a B0938 diagnostic trouble code?
To fix B0938: Check the coolant level and add if necessary. Inspect the coolant level sensor for damage. Check wiring harness and sensor connections. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B0938?
Limited driving only, diagnose soon
How much does it cost to fix B0938?
The estimated repair cost for B0938 is $22–56. Actual cost depends on your vehicle, location, and labor rates.
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