Transmission Control System

DTC P0605 INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERROR

COMPONENT LOCATION





GENERAL DESCRIPTION
The TCU check ROM I.D. all the time, in order to maintain for best condition and surrounding.

DTC DESCRIPTION
The TCU set this code When the ROM I.D. is changed by external force or input non-available data.

DTC DETECTING CONDITION





MONITOR SCANTOOL DATA
1. Connect scan tool to data link connector (DLC).
2. Ignition "ON".
3. Confirm the "ROM I.D.".
4. Perform the "ROM UP-DATE".
5. Perform the Re-diagnosis.
6. Is "DTC" disappeared?

YES

> Fault is intermittent caused by poor contact in the sensors and/or PCM/TCM's connector or was repaired and PCM/TCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage. Repair or replace as necessary and go to "Verification of Vehicle Repair" procedure.

NO

> Replace PCM/TCM as necessary and then go to "Verification of Vehicle Repair" procedure.

VERIFICATION OF VEHICLE REPAIR
After a repair, it is essential to verify that the fault has been corrected.

1. Connect scan tool and select "Diagnostic Trouble Codes (DTCs)" mode
2. Using a scan tool, clear DTC
3. Operate the vehicle within DTC Enable conditions in general information.
4. Are any DTCs present?

YES

> Go to the applicable troubleshooting procedure.

NO

> System performing to specification at this time.