alternator, spark plug cables, etc.)įaulty PCM (less likely but not impossible) IAT harness and/or wiring routed too close to high-voltage wiring (e.g. Short to voltage in IAT signal circuit or reference circuit Open in IAT ground circuit or signal circuit There will likely be no symptoms other than illumination of the Malfunction Indicator Lamp (MIL - Check Engine Light / Service Engine Soon).Ī code P0113 may mean that one or more of the following has happened: When the PCM sees a signal voltage higher than 5 volts, it sets this P0113 check engine light code. Low temperature results in a high signal voltage. As the temperature increases, resistance decreases. The IAT is a thermistor that varies resistance based on temperature. The PCM supplies a 5 volt reference voltage to the Intake Air Temperature (IAT) sensor.
The Powertrain Control Module (PCM) monitors the temperature of the air entering the engine. P0113 - Intake Air Temperature Circuit High Input System codes details? - Engine Misfire codes?Ĭontinues to return and the MIL light is on?Ĭar misfires and error code P0306 and P0303 isĭiagnostic error code P0121,P0505,P1000,P2101,P2104, OBD code problems check the list of help links below.
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