| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000WQ19 |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - ] |
| Title: MF1A (TRANSFER / 4WD / AWD): ACTIVE TORQUE CONTROL 4WD SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2016 - 2020 MY Sienna [12/2015 - ] | ||
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HOW TO PROCEED WITH TROUBLESHOOTING |
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure listed to troubleshoot the Active Torque Control 4WD system.
- *: Use the Techstream.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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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.
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3. |
CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
|
Result |
Proceed to |
|---|---|
|
CAN DTC is not output |
A |
|
CAN DTC is output |
B |
| B |
|
GO TO CAN COMMUNICATION SYSTEM |
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4. |
CHECK DTC* |
(a) Check for DTCs.
Click here
![2016 - 2017 MY Sienna [12/2015 - 11/2017]; MF1A (TRANSFER / 4WD / AWD): ACTIVE TORQUE CONTROL 4WD SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
(b) Clear the DTCs.
(c) Recheck for DTCs.
|
Result |
Proceed to |
|---|---|
|
DTC does not reoccur |
A |
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DTC does reoccur |
B |
| B |
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5. |
PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
|
Result |
Proceed to |
|---|---|
|
Fault not listed in problem symptoms table |
A |
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Fault listed in problem symptoms table |
B |
| B |
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6. |
OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Terminals of ECU.
Click here
(b) Data List / Active Test.
Click here
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7. |
REPAIR OR REPLACE |
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8. |
CONFIRM TEST |
| NEXT |
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END |
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