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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 28 (Heating / Air Conditioning System) >> Air Conditioning System >> DTC B1461/61 Emission Gas NOx Sensor Circuit >> Description

DTC B1461/61 Emission Gas NOx Sensor Circuit: Description

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

The smog ventilation sensor detects NOx in the emission gas and transmits signals to the A/C amplifier. Based on the signals, the A/C amplifier performs automatic air inlet control (FRESH, FRESH/RECIRCULATION, or RECIRCULATION mode).

DTC DETECTION CONDITION AND TROUBLE AREA

DTC No. DTC Detection Condition Trouble Area
B1461/61 Open or short in emission gas NOx sensor circuit
  • Smog ventilation sensor (emission gas NOx sensor)
  • Harness and connector between smog ventilation sensor (emission gas NOx sensor) and A/C amplifier
  • A/C amplifier