Inspection Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to the ON position.
3. Turn the Techstream on.
4. Clear the DTC (See DTC CHECK/CLEAR  ).
5. Turn the ignition switch off.
6. Disconnect the battery negative terminal and wait for 1 minute.
7. Connect the battery negative terminal.
8. Turn the ignition switch to the ON position.
9. Enter the following menus: Powertrain/Engine and ECT/Trouble Codes.
10. Read the DTCs.

    Result 

    RESULT CHART
    
    

    Display (DTC output)	Proceed to
    P0604	A
    No output DTC	B

B: CHECK FOR INTERMITTENT PROBLEMS (See  CHECK FOR INTERMITTENT PROBLEMS   ) 

A: REPLACE ECM  (See REMOVAL )