Component Inspection

Engine

Engine Control - P0328 Knock Sensor 1 Circuit High Input - Component Inspection

Component Inspection

1. Check Knock sensor
(1) Substitute with a known - good Knock sensor and check for proper operation.
(2) Is the signal normal?
YES
1) Replace Knock sensor and go to "Verification of Vehicle Repair" procedure.
NO
1) Substitute with a known - good ECM and check for proper operation.
If the problem is corrected, replace ECM and go to "Verification of Vehicle Repair" procedure.