Inspection Procedure

1. Connect Techstream to the DLC3.
2. Turn the ignition switch on (IG).
3. Turn the tester on.
4. Clear the DTC.
5. Turn the ignition switch off.
6. Disconnect the negative battery terminal and wait for 1 minute.
7. Connect the negative battery terminal.
8. Turn the ignition switch on (IG).
9. Enter the following menus: Powertrain / Engine / 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 

A : REPLACE ECM  (See ECM )