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Home >> Lexus >> 2004 >> LS 430 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> SFI System - Diagnosis >> DTC P0110: Intake Air Temperature Circuit, DTC P0112 Intake Air Temperature Circuit Low Input, DTC P0113 Intake Air Temperature Circuit High Input >> Monitor Description

Monitor Description

The ECM monitors the sensor voltage and uses this value to calculate the IAT. When the sensor output voltage deviates from the normal operating range, the ECM interprets this as a fault in the IAT sensor and a DTC.

Example:

When the sensor voltage output is -40°C (-40°F) (P0113) or more than 140°C (284°F) (P0112) and if either condition continues 0.5 seconds or more.

This monitor runs 0.5 seconds after the ignition switch is turned ON (1 trip detection logic).

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