Toyota Venza: How To Proceed With Troubleshooting

Toyota Venza Service Manual / Mf1a Transfer / 4wd / Awd / Active Torque Control 4wd System / 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

1.	VEHICLE BROUGHT TO WORKSHOP

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.

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

GO TO CAN COMMUNICATION SYSTEM

4.	CHECK FOR DTCs*

(a) Check for DTCs (See page ).

(b) Clear the DTCs.

Result	Proceed to
DTC does not reoccur	A
DTC does reoccur	B

GO TO STEP 7

5.	PROBLEM SYMPTOMS TABLE

Result	Proceed to
Fault not listed in problem symptoms table	A
Fault listed in problem symptoms table	B

GO TO STEP 7

6.	OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU (See page ).

(b) Data List / Active Test (See page ).

7.	REPAIR OR REPLACE

8.	CONFIRMATION TEST

END

System Diagram

SYSTEM DIAGRAM Communication Table Transmitting ECU Receiving ECU Signal Communication Method Skid control ECU AWD control EC ...

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are lis ...

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