Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
How To Proceed With Troubleshooting [12/2019 - ]: Procedure
- VEHICLE BROUGHT TO WORKSHOP
Result
Proceed to NEXT Result:
NEXT
See 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.
Result
Proceed to NEXT Result:
NEXT
See step 3
- CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
- Use the GTS to check if the CAN communication system is functioning normally.
Refer to DIAGNOSIS SYSTEM [12/2019 - 09/2020] , or refer to DIAGNOSIS SYSTEM [09/2020 - 10/2022] , or refer to DIAGNOSIS SYSTEM [10/2022 - 11/2023] , or refer to DIAGNOSIS SYSTEM [11/2023 - ]
Result
Result Proceed to CAN DTC is not output A CAN DTC is output B
Result:
B
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING). Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2022] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - 11/2023] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]
Result:
A
See step 4
- Use the GTS to check if the CAN communication system is functioning normally.
- CHECK DTC AND FREEZE FRAME DATA*
- Check for DTCs.
Chassis > Four Wheel Drive > Trouble Codes
- Check for freeze frame data.
HINT:
Record or print DTCs and freeze frame data if necessary.
- Clear the DTCs and freeze frame data.
Chassis > Four Wheel Drive > Clear DTCs
- Recheck for DTCs.
Chassis > Four Wheel Drive > Trouble Codes
Result
Result Proceed to DTC does not reoccur A DTC reoccurs B
Result:
B
See step 8
Result:
A
See step 5
- Check for DTCs.
- CHECK VEHICLE CONTROL HISTORY (DYNAMIC TORQUE CONTROL AWD SYSTEM)*
- Use the GTS to check the vehicle control history.
Chassis > Four Wheel Drive > Utility
Tester Display Vehicle Control History (RoB) Result
Result Proceed to Vehicle control history is not output A Vehicle control history is output B
Result:
B
GO TO VEHICLE CONTROL HISTORY. Refer to VEHICLE CONTROL HISTORY [12/2019 - ]
Result:
A
See step 6
- Use the GTS to check the vehicle control history.
- PROBLEM SYMPTOMS TABLE
- Refer to Problem Symptoms Table.
Refer to PROBLEM SYMPTOMS TABLE [12/2019 - ]
Result
Result Proceed to Fault not listed in problem symptoms table A Fault listed in problem symptoms table B
Result:
B
See step 8
Result:
A
See step 7
- Refer to Problem Symptoms Table.
- OVERALL ANALYSIS AND TROUBLESHOOTING*
- Terminals of ECU.
Refer to TERMINALS OF ECU [12/2019 - ]
- Data List / Active Test.
Refer to DATA LIST / ACTIVE TEST [12/2019 - ]
Result
Proceed to NEXT
Result:
NEXT
See step 8
- Terminals of ECU.
- REPAIR OR REPLACE
Result
Proceed to NEXT Result:
NEXT
See step 9
- CONFIRMATION TEST
Result
Proceed to NEXT Result:
NEXT
END
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.