P00B2 Fault Code

Radiator Coolant Temperature Sensor Circuit Range/Performance

• What does that mean?
• Symptoms
• Causes
• Solutions

The P00B2 fault code indicates an issue with the Radiator Coolant Temperature Sensor Circuit. This code is triggered when the Engine Control Module (ECM) detects that the signal from the radiator coolant temperature sensor is outside the expected range or is performing poorly. The sensor is responsible for monitoring the temperature of the coolant flowing through the radiator, which helps regulate the engine temperature and prevent overheating.

What are the symptoms of the P00B2 code?

• Engine overheating or running too cool
• Poor fuel economy due to incorrect engine temperature readings
• Check Engine light illuminated on the dashboard
• Erratic temperature gauge readings
• Possible engine performance issues such as stalling or rough idling

What causes the P00B2 code?

• Faulty radiator coolant temperature sensor
• Wiring issues or short circuits in the sensor circuit
• Poor electrical connections at the sensor or ECM
• Faulty Engine Control Module (ECM)
• Coolant leaks affecting sensor readings

How to fix P00B2?

• Inspect and test the radiator coolant temperature sensor for proper operation
• Check the wiring and connectors for any signs of damage, corrosion, or loose connections
• Replace the faulty radiator coolant temperature sensor if necessary
• Clear any fault codes and conduct a test drive to ensure the issue is resolved
• If the problem persists, further diagnosis of the ECM may be required.