P00B6

Radiator Coolant Temperature/Engine Coolant Temperature Correlation

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Engine overheating
Unstable engine operation
Increased fuel consumption
Turning on the Check Engine Light

Causes

Radiator coolant temperature sensor malfunction
Engine coolant temperature sensor malfunction
Damage to the sensor wiring harness
Faulty thermostat
Cooling system clogged
Problems with coolant circulation

How to Fix

Check the readings of both temperature sensors using a diagnostic scanner
Inspect the wiring harness and sensor connectors for damage.
Check the functionality of the thermostat
Flush the cooling system if necessary
Replace faulty sensors
Clear error codes and test drive

Related codes

P0115 P0116 P0117 P0118