From 08/2009

MF1A TRANSFER / 4WD / AWD: ACTIVE TORQUE CONTROL 4WD SYSTEM: 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.

(b) Check for DTCs Diagnosis System.

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