Toyota Venza manuals

Toyota Venza: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedure to troubleshoot the air conditioning system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP


NEXT

2.

INSPECT BATTERY VOLTAGE

(a) Inspect the 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

3.

CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the LIN communication system is functioning normally.

Result

Proceed to

LIN DTC is not output

A

LIN DTC is output

B

( )



B

GO TO LIN COMMUNICATION SYSTEM


A

4.

CHECK COMMUNICATION FUNCTION OF LIN 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


A

5.

CHECK FOR DTC*

(a) Check for DTCs and note any code that is output.

(b) Clear the DTCs.

(c) Recheck for DTCs. Based on the DTCs output above, try to force the A/C system to output DTCs by simulating the conditions indicated by the DTC.

Result

Proceed to

DTC is not output

A

DTC is output

B


B

GO TO STEP 8


A

6.

PROBLEM SYMPTOMS TABLE

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


Result

Proceed to

Fault is not listed in Problem Symptoms Table

A

Fault is listed in Problem Symptoms Table

B


B

GO TO STEP 8


A

7.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Panel diagnosis (indicator check) (See page )


(b) Panel diagnosis (sensor check) (See page )


(c) Panel diagnosis (actuator check) (See page )


(d) Data List / Active Test (See page )


(e) Terminals of ECU (See page )


(f) On-vehicle Inspection

(g) Inspection


NEXT

8.

ADJUST, REPAIR OR REPLACE


NEXT

END

System Description
SYSTEM DESCRIPTION 1. GENERAL (a) The air conditioning system has the following controls. Control Outline Neural Network Control This control is ca ...

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