How To Fix P0098 Code - Intake Air Temperature Sensor 2 Circuit High Diagnosis
Автор: Car Cure
Загружено: 2026-01-14
Просмотров: 29
Описание:
In this video, we troubleshoot the P0098 OBD-II trouble code, which indicates a problem with the Intake Air Temperature Sensor 2 Circuit High. When your check engine light comes on with this code, it usually means the Powertrain Control Module is seeing a voltage signal above 5 volts, which the computer interprets as an open circuit or extremely low temperature. We explain how the IAT sensor functions as a thermistor and why resistance changes affect the voltage signal. You will learn step-by-step how to diagnose this issue using a scan tool to check live data and how to perform a jumper wire test between the signal and ground circuits to rule out wiring issues. We also cover using a digital multimeter to verify the 5-volt reference from the PCM. Follow these diagnostic steps to determine if you simply have a bad connection or if the IAT sensor itself has failed and needs replacement.
#obd2 #car #errorcode
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