Diagnostic Procedure
- STEP 1. Scan tool CAN bus diagnostics
Using scan tool MB991958, diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines. (Refer to TROUBLESHOOTING ). After repairing the CAN bus line, go to Step 2.
- STEP 2. Scan tool service data
Item No. 30: Drive mode switch (Refer to SERVICE DATA REFERENCE TABLE ).
Q: Is the check result normal?
YES : Intermittent malfunction. (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
NO : Go to Step 3.
- STEP 3. Twin clutch SST control mode switch check
Refer to SENSOR, SWITCH AND RELAY .
Q: Is the check result normal?
YES : Go to Step 4.
NO : Replace the twin clutch SST control mode switch. (Refer to SENSOR, SWITCH AND RELAY ).
- STEP 4. Twin clutch SST control mode switch connector check: C-27-2
Check for the contact with terminals.
Q: Is the check result normal?
YES : Go to Step 5.
NO : Repair the defective connector.
- STEP 5. Trouble symptom recheck after replacing the shift lever assembly
- Replace the shift lever assembly. (Refer to TRANSMISSION CONTROL ).
- Verify that the condition described by the customer exists.
Q: Does a malfunction take place again?
YES : Replace the TC-SST assembly. (Refer to TRANSAXLE ASSEMBLY ).
NO : Intermittent malfunction. (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).