Diagnosis Procedure
1.
CHECK DTC PRIORITY
If DTC P0326 is displayed with DTC P0327 or P0328, first perform the confirmation procedure (trouble diagnosis) for DTC P0327 or P0328.
Is applicable DTC detected?
Perform diagnosis of applicable. Refer to
DTC Index
.
.
2.
CHECK INSTALLATION CONDITION OF KNOCK SENSOR
Visually check that the knock sensor is installed normally.
Is the inspection result normal?
.
Repair or replace error-detected parts.
3.
CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to Intermittent Incident
Intermittent Incident
.
Is the inspection result normal?
.
Repair or replace error-detected parts.
4.
CHECK KNOCK SENSOR CIRCUIT
Check knock sensor circuit. Refer to
Component Inspection
.
Is the inspection result normal?
.
Repair or replace error-detected parts.
5.
PERFORM DTC CONFIRMATION PROCEDURE
Turn ignition switch ON.
Erase DTC.
Perform DTC confirmation procedure. Refer to
DTC Description
.
Is the 1st trip DTC P0326 displayed again?
Replace ECM.
INSPECTION END
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Perform diagnosis of applicable. Refer to DTC Index
.
..Repair or replace error-detected parts...Repair or replace error-detected parts...Repair or replace error-detected parts..Replace ECM.INSPECTION END