Lexus IS250 IS220d GSE20 ALE20 - AIR CONDITIONING
SMOG VENTILATION SENSOR - INSPECTION
| 1. INSPECT SMOG VENTILATION SENSOR |
HC, CO
Apply battery voltage between terminals 3 (IG) and 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 before blowing exhaust gas is 10 kΩ to 40 kΩ.
If the resistance is not as specified, replace the smog ventilation sensor.
NOx
Apply battery voltage between terminals 3 (IG) and 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 before blowing exhaust gas is 10 kΩ to 40 kΩ.
If the resistance is not as specified, replace the smog ventilation sensor.
LEXUS IS250, IS220d / GSE20 ALE20