Diagnosis Procedure
1.
CHECK KNOCK SENSOR 2 GROUND CIRCUIT
Turn ignition switch OFF.
Disconnect knock sensor 2 harness connector.
Disconnect ECM harness connector.
Check the continuity between knock sensor 2 harness connector and ECM harness connector.
Knock sensor 2
ECM
Continuity
Connector
Terminal
Connector
Terminal
F6
2
F51
53
Existed
Also check harness for short to ground and short to power.
Is the inspection result normal?
.
Repair or replace malfunctioning part.
2.
CHECK KNOCK SENSOR 2 INPUT SIGNAL CIRCUIT
Check the continuity between knock sensor 2 harness connector and ECM harness connector.
Knock sensor 2
ECM
Continuity
Connector
Terminal
Connector
Terminal
F6
1
F51
51
Existed
Also check harness for short to ground and short to power.
Is the inspection result normal?
.
Repair or replace malfunctioning part.
3.
CHECK KNOCK SENSOR 2
Refer to
Component Inspection
.
Is the inspection result normal?
INSPECTION END
Replace knock sensor 2. Refer to
Exploded View
.