1.
Check for Knock Sensor output signal when external force is given to the sensor.
Check for Knock Sensor output signal when external force is given to the sensor.
Does sensor outputs signal in proportion to external force?
 | ▶ Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage. So, check poor connections and the related circuit between PCM and component thoroughly. Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
 | ▶ Carefully re-do this troubleshooting guide steps. ▶ If no problems were found with the circuits or connectors, replace the Knock Sensor and go to "Verification of Vehicle Repair" procedure. |
