5D2-28 TRANSFER CASE - TOD TOD CONTROL UNIT DIAGNOSTIC SYSTEM CHECK Circuit Description The diagnostic system check is an organized approach to identifying a problem created by a transfer case control unit (TOD) malfunction. It must be starting point for any derivability complaint diagnosis because it directs the technician to the next logical step in diagnosing the complaint. Understanding the table and using it correctly will reduce diagnostic time and prevent the unnecessary replacement of parts. SSANGYONG Y200 Step Action Value Yes NO 1 Verify the customer’s complaint. Does it verify the customer’s complaint? - Go To Step 2 - 2 Turn the ignition ON.
Does “4WD CHECK” lamp turns on continuously? - Go To Step 4 Go To Step 3 3 Jump between the terminal A2 of the TOD and ground. Does “4WD CHECK” lamp turns on? 1. Turn the ignition OFF. - Go To Step 4 Repair the bulb and circuit 4 2. Connect the data diagnosis connector to scan tool and follow the manual instruction. 3. Turn the ignition ON. Does the scan tool communicate with TOD? - Go To Step 9 Go To Step 5 5 Check whether the scan tool communicates with other control units. Does the scan tool communicate with other control units? - Go To Step 6 Go To Step 7 6 Repair the diagnostic line between the TOD terminal A12 and DLC connector 13. Is the repair complete?
- Go To Step 4 - 7 Change the scan tool. Does the scan tool communicate with other control units? - Go To Step 4 Go To Step 8 8 1. Replace the TOD. 2. Connect the data diagnosis connector to scan tool. 3. Request the DTC. Does any DTC display? - Go To Step 11 Go To Step 10 9 Request the DTC with the scan tool. Does any DTC display? - Go To Step 11 Go To Step 10 10 1. Perform the road test. 2. Recheck any DTC. Does any DTC display? - Go To Step 11 System OK 11 Refer to applicable DTC table. Start the lowest DTC and move another DTC. Does the DTC identify as a valid DTC? - Go To the applicable DTC table -