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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 B1418/18 Exhaust Gas Sensor Circuit >> Description

DTC B1418/18 Exhaust Gas 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, which is installed on the front of the condenser, is used for automatic air inlet control This sensor detects CO and HC in the emission gas and transmits signals to the A/C amplifier

DTC DETECTION CONDITION AND TROUBLE AREA

DTC No. DTC Detection Condition Trouble Area
B1418/18 Open or short in smog ventilation sensor circuit (HC, CO)
  • Smog ventilation sensor (emission gas sensor)
  • Harness or connector between smog ventilation sensor (emission gas sensor) and A/C amplifier
  • A/C amplifier