Lexus IS250 IS220d GSE20 ALE20 4GR-FSE ENGINE CONTROL SYSTEMINSPECT KNOCK SENSORKNOCK SENSOR - INSPECTION 1. INSPECT KNOCK SENSOR Measure the resistance between the terminals.Standard resistance:120 to 280 kΩ at 20°C (68°F)If the result is not as specified, replace the sensor. LEXUS IS250, IS220d / GSE20 ALE20 4GR-FSE ENGINE CONTROL SYSTEM Lexus IS250 IS220d GSE20 ALE20 KNOCK SENSOR