Test requirement:

NOTE:

Knock Sensor (KS) 1 -G61- and Knock Sensor (KS) 2 -G66- themselves cannot be electrically tested.
When servicing terminals in harness connector of knock sensors, use only gold-plated terminals.
For the Knock Sensors to function properly, it is important for tightening torque to be exactly 20 N.m.
Check harness connector from knock sensor to wiring harness for corrosion.