NOTE:
Before performing the following inspection, make sure to follow the procedure as indicated in the troubleshooting flowchart. (See HOW TO USE THIS MANUAL.)
1. Remove the battery cover.
2. Remove the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF].)
3. Disconnect the KS connector.
4. Measure resistance between KS terminals A and B.
If not within the specification, replace the KS. (See KNOCK SENSOR (KS) REMOVAL/INSTALLATION [LF].)
If the monitor item status/specification (reference) is not within the specification, even though the KS resistance is within the specification, perform the “Circuit Open/Short Inspection”.
KS resistance
Approx. 4.87 megohms
1. Disconnect the PCM connector.
2. Inspect the following wiring harnesses for an open or short circuit. (Continuity inspection)
If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
KS terminal A and PCM terminal 2U
KS terminal B and PCM terminal 2V
If there is continuity, there is a short circuit. Repair or replace the wiring harness.
KS terminal A and power supply
KS terminal A and body ground
KS terminal B and power supply
KS terminal B and body ground