Radiator Coolant Temperature Sensor Circuit Range/Performance

Descripción

This code means the radiator coolant temperature sensor is sending a signal that is outside of its expected range or is performing erratically. The car's computer can't get a reliable reading of the coolant temperature, which can impact how the engine runs.

Pasos de reparación

1. 1 Check coolant level in the reservoir and radiator when the engine is cold, and top off if low.
2. 2 Inspect the radiator coolant temperature sensor connector and wiring for corrosion, damage, or loose connections.
3. 3 Bleed the cooling system to remove any air pockets that may be affecting sensor readings.
4. 4 Test the radiator coolant temperature sensor with a multimeter to verify it reads within the correct resistance range for the current temperature.
5. 5 Inspect the thermostat operation by monitoring engine warm-up behavior; replace the thermostat if it is stuck open or closed.
6. 6 Replace the radiator coolant temperature sensor if testing confirms it is out of range or erratic.
7. 7 Repair or replace any damaged wiring or connectors in the coolant temperature sensor circuit.

Diagnóstico y costo