Toyota Venza manuals

Toyota Venza: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedure to troubleshoot the power steering system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP


NEXT

2.

CUSTOMER PROBLEM ANALYSIS

(a) Confirm problem symptoms (See page ).



NEXT

3.

INSPECT BATTERY VOLTAGE

(a) Measure the voltage of the battery.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

(b) Using the Techstream, inspect battery voltage reduction history "Battery Voltage Lo Record" in the Data List (See page
).


NEXT

4.

CHECK DTC AND FREEZE FRAME DATA*

(a) Record DTCs and freeze frame data.


NEXT

5.

CLEAR DTC AND FREEZE FRAME DATA*

(a) Clear the DTCs and freeze frame data.


NEXT

6.

PROBLEM SYMPTOM CONFIRMATION

Result

Proceed to

Symptom does not occur.

A

Symptom occurs.

B


B

GO TO STEP 8


A

7.

SYMPTOM SIMULATION


NEXT

8.

CHECK CAN COMMUNICATION SYSTEM*

(a) Check for DTCs (See page ).


Result

Proceed to

CAN system DTC is not output.

A

CAN system DTC is output.

B

HINT:

  • If any DTCs of the CAN communication system are output, perform troubleshooting on the CAN communication system first.
  • If communication to the power steering ECU cannot be established through the Techstream, inspect terminals CANH and CANL of the DLC3 and the power steering ECU, and the IG circuit of the power steering ECU.

B

PROCEED TO CAN COMMUNICATION SYSTEM


A

9.

CHECK FOR DTC*

(a) Check for DTCs (See page ).


HINT:

Refer to Diagnostic Trouble Code Chart when any DTCs are output (See page ).


Result

Proceed to

DTCs are not output.

A

DTCs are output.

B


B

GO TO STEP 11


A

10.

PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table (See page ).



NEXT

11.

CIRCUIT INSPECTION


NEXT

12.

IDENTIFICATION OF PROBLEM


NEXT

13.

REPAIR OR REPLACE


NEXT

14.

CONFIRMATION TEST


NEXT

END

System Diagram
SYSTEM DIAGRAM Transmitting ECU (Transmitter) Receiving ECU Signal Communication Method ECM Power Steering ECU ...

System Description
SYSTEM DESCRIPTION 1. DESCRIPTION The power steering system generates torque through the operation of the motor and the reduction gear installed on the column shaft in order to assist ...

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Precaution
PRECAUTION 1. PRECAUTION FOR DISCONNECTING THE BATTERY CABLE NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected: System See Procedure ...

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