Inspection [08/2013 - ]
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT SMOG VENTILATION SENSOR
- HC, CO
- Connect a auxiliary battery positive (+) lead to terminal 3 (IG) and a negative (-) lead to terminal 6 (E).
- Allow exhaust gas (HC, CO) to travel to the sensing portion of the smog ventilation sensor, and measure the resistance between terminals 1 (SG) and 2 (DGS).
OK
When the sensor is exposed to the exhaust gas, the resistance increases.
HINT:
The resistance of the sensor before being exposed to exhaust gas is 10 kΩ to 40 kΩ.
TEXT IN ILLUSTRATION*a Component without harness connected
(Smog Ventilation Sensor)If the result is not as specified, replace the smog ventilation sensor.
- NOx
- Connect a auxiliary battery positive (+) lead to terminal 3 (IG) and a negative (-) lead to terminal 6 (E).
- Allow exhaust gas (NOx) to travel to the sensing portion of the smog ventilation sensor, and measure the resistance between terminals 1 (SG) and 4 (DGS1).
OK
When the sensor is exposed to the exhaust gas, the resistance increases.
HINT:
The resistance of the sensor before being exposed to exhaust gas is 10 kΩ to 40 kΩ.
TEXT IN ILLUSTRATION*a Component without harness connected
(Smog Ventilation Sensor)If the result is not as specified, replace the smog ventilation sensor.
- HC, CO