Intake Air Temperature Sensor 1 Circuit Low Bank 2

Descripción

This code indicates that the engine computer is seeing a voltage signal from the first intake air temperature sensor on bank 2 that is too low. This could mean the sensor is faulty or there's a problem with its wiring.

Pasos de reparación

1. 1 Inspect the electrical connector at the intake air temperature (IAT) sensor 1 on bank 2 for looseness, corrosion, or damage, and reseat it firmly.
2. 2 Check the wiring harness between the IAT sensor 1 and the ECM for chafing, bare wires, or shorts to ground, and repair as needed.
3. 3 Measure the IAT sensor 1 resistance with a multimeter at various temperatures to verify it matches manufacturer specifications; replace the sensor if out of range.
4. 4 Replace the intake air temperature sensor 1 on bank 2 if testing confirms it is faulty.
5. 5 Clear the diagnostic trouble code and test drive the vehicle to confirm the issue is resolved.
6. 6 If the code returns after sensor and wiring repairs, have the engine control module (ECM) inspected and tested by a professional for internal faults.

Diagnóstico y costo