Connect scantool to Data Link Connector(DLC).
Ignition "ON" & engine "OFF"
Selet "Diagnostic Trouble Codes(DTCs)"mode and monitor "DTC Status" parameter
Is the DTC P1674 present ?
YES
Go to "Inspection & Repair" procedure
NO
Fault is intermittent caused by poor contact in SMARTRA’s and/or ECM’s connector or was repaired and ECM memory was not cleared.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.