Charge Air Cooler Coolant Temperature Sensor A Circuit

Descripción

This code points to a problem with the temperature sensor for the charge air cooler coolant. This system cools the air that's been compressed by the turbo or supercharger before it enters the engine.

Pasos de reparación

1. 1 Check the coolant level in the charge air cooler system and top off if low.
2. 2 Inspect the wiring harness and electrical connector at the charge air cooler coolant temperature sensor for damage, corrosion, or loose connections.
3. 3 Bleed air from the charge air cooler coolant system to eliminate air pockets that may cause erratic sensor readings.
4. 4 Test the charge air cooler coolant temperature sensor with a multimeter to verify proper resistance values across a range of temperatures.
5. 5 Replace the faulty charge air cooler coolant temperature sensor if readings are out of specification.
6. 6 Inspect and test the charge air cooler thermostat for proper operation and replace if stuck open or closed.
7. 7 Repair or replace any damaged wiring or connectors in the charge air cooler coolant temperature sensor circuit.

Diagnóstico y costo