B0937

Coolant Level Sensor Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$22–111 (est.)

Symptoms

False low coolant warning
Check Engine Light Is On
Inability to monitor coolant level via on-board computer

Causes

Coolant level sensor malfunction
Open or short circuit in wiring harness
Poor contact in the sensor connector
Low coolant level
Engine control unit malfunction

How to Fix

Check the coolant level and add if necessary
Inspect the sensor connector and wiring harness for damage.
Check the sensor resistance in accordance with the technical data
Replace sensor if necessary
Reset the error code and check for its reappearance

Related codes

P2185 P2187 P2189