How to Proceed With Troubleshooting

MF1A TRANSFER / 4WD / AWD: ACTIVE TORQUE CONTROL 4WD SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

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 -- Continue 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 -- Continue to next step.

3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
(a) Use the Techstream to check if the CAN communication system is functioning normally.
Result:





B -- Go to CAN COMMUNICATION SYSTEM
A -- Continue to next step.

4. CHECK DTC*
(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Clear the DTCs.
(c) Recheck for DTCs.
Result:





B -- GO TO STEP 7
A -- Continue to next step.

5. PROBLEM SYMPTOMS TABLE
Result:





B -- GO TO STEP 7
A -- Continue to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING*
(a) Terminals of ECU Pinout Values and Diagnostic Parameters.
(b) Data List / Active Test Scan Tool Testing and Procedures.
NEXT -- Continue to next step.

7. REPAIR OR REPLACE
NEXT -- Continue to next step.

8. CONFIRMATION TEST
NEXT -- END