How To Proceed With Troubleshooting

HINT: 

• Use the following procedure listed to troubleshoot the Active Torque Control 4WD system.
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. INSPECT BATTERY VOLTAGE 

   Standard voltage

   11 to 14 V

   If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

   NEXT: Go to next step 

3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* 
   1. Use the Techstream to check if the CAN communication system is functioning normally.
   2. Check for DTCs. Refer to DIAGNOSIS SYSTEM .

      Result

      Result	Proceed to
      CAN DTC is not output	A
      CAN DTC is output	B

      B → Go to  CAN COMMUNICATION SYSTEM (DIAGNOSTICS - INTRODUCTION) 

      A: Go to next step 

4. CHECK DTC* 
   1. Check for DTCs. Refer to DTC CHECK / CLEAR .
   2. Clear the DTCs.
   3. Recheck for DTCs.

      Result

      Result	Proceed to
      DTC does not reoccur	A
      DTC does reoccur	B

      B → GO TO   7 . 

      A: Go to next step 

5. PROBLEM SYMPTOMS TABLE 

   Result

   Result	Proceed to
   Fault not listed in problem symptoms table	A
   Fault listed in problem symptoms table	B

   B → GO TO   7 . 

   A: Go to next step 

6. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. Terminals of ECU. Refer to TERMINALS OF ECU .
   2. Data List / Active Test. Refer to DATA LIST / ACTIVE TEST .

      NEXT: Go to next step 

7. REPAIR OR REPLACE 

   NEXT: Go to next step 

8. CONFIRMATION TEST 

   NEXT → END