P00B2

Radiator Coolant Temperature Sensor Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–89 (est.)

Symptoms

Engine overheating
Unstable cooling fan operation
Incorrect temperature readings on the dashboard

Causes

Faulty coolant temperature sensor
Open or short circuit in wiring harness
Poor contact in the sensor connector
Problems with the engine control unit

How to Fix

Check the condition of the sensor and its connector
Check sensor resistance to specifications
Inspect the wiring harness for damage
Replace sensor if necessary
Reset error and test drive

Related codes

P0115 P0116 P0117 P0118