B0936

Coolant Level Sensor Circuit Malfunction

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 warning

Causes

Open or short circuit in the sensor circuit
Coolant level sensor malfunction
Wiring harness damage
Poor contact in sensor connectors

How to Fix

Check the coolant level in the reservoir
Inspect the sensor wiring harness and connectors for damage.
Check the sensor circuit for an open or short circuit
Replace the coolant level sensor if necessary
Clear error codes and check if error is returned

Related codes

P0115 P0116 P0117