How To Proceed With Troubleshooting

DIFFERENTIAL: ACTIVE TORQUE CONTROL 4WD SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
- Use these procedures to troubleshoot the active torque control 4WD system.
- *: Use 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.
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 INDICATOR LIGHT
NEXT -- Continue to next step.
5. 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 8
A -- Continue to next step.
6. PROBLEM SYMPTOMS TABLE

Result





B -- Go to step 8
A -- Continue to next step.
7. 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.
8. REPAIR OR REPLACE
NEXT -- Continue to next step.
9. CONFIRMATION TEST
NEXT -- END