B0938

Coolant Level Sensor Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$22–56 (est.)

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

P0115 P0116 P0117