DTC P0604-44: Internal Control Module Random Access Memory (RAM) Error Data Memory Failure [10/2014 - 05/2019]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Clear the DTCs.

   Powertrain > Engine > Clear DTCs 

5. Turn the engine switch off and turn the Techstream off.
6. Disconnect the Techstream.
7. Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.
8. Connect the cable to the negative (-) battery terminal.
9. Connect the Techstream to the DLC3.
10. Turn the engine switch on (IG).
11. Turn the Techstream on.
12. Wait 16 seconds or more.
13. Enter the following menus: Powertrain / Engine / Trouble Codes.
14. Read the DTCs.

    Powertrain > Engine > Trouble Codes 

    Result

    Result	Proceed to
    DTC is not output	A
    DTC P0604-44 is output	B

Result: 

A 

CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [10/2014 - ] 

Result: 

B 

REPLACE ECM. Refer to  REMOVAL [10/2014 - 05/2019]