Toyota Venza: How To Proceed With Troubleshooting

Toyota Venza Service Manual / Sliding Roof / Convertible / Sliding Roof System / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

Use these procedure to troubleshoot the sliding roof system.
*: Use the Techstream.

PROCEDURE

1.	VEHICLE BROUGHT TO WORKSHOP

2.	CUSTOMER PROBLEM ANALYSIS

HINT:

In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
The following 5 items are important points in the problem analysis:

What	Vehicle model, system name
When	Date, time, occurrence frequency
Where	Road conditions
Under what conditions?	Driving conditions, weather conditions
How did it happen?	Problem symptoms

3.	INSPECT BATTERY VOLTAGE

(a) Measure 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.

4.	CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, check if the CAN communication system is functioning normally.

Result	Proceed to
DTC is not output	A
DTC is output	B

GO TO CAN COMMUNICATION SYSTEM

5.	CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

(a) Using the Techstream, check if the LIN communication system is functioning normally (See page ).

Result	Proceed to
DTC is not output	A
DTC is output	B

GO TO LIN COMMUNICATION SYSTEM

6.	CHECK FOR DTC (SLIDING ROOF ECU)**

(a) Clear the DTCs (See page ).

(b) Recheck for DTCs.

Result	Proceed to
DTC is not output	A
DTC is output	B

GO TO DIAGNOSTIC TROUBLE CODE CHART

7.	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

GO TO STEP 9

8.	OVERALL ANALYSIS AND TROUBLESHOOTING

(a) Operation Check (See page )

(b) Terminals of ECU (See page )

9.	CONFIRMATION TEST

END

System Description

SYSTEM DESCRIPTION 1. GENERAL This system has the following functions: manual slide open and close; auto slide open; manual tilt up and down; auto tilt up; jam protection; key off operation. 2. F ...

Operation Check

OPERATION CHECK 1. CHECK AUTO OPERATION NOTICE: Make sure that initialization is completed before inspection (See page ). HINT: When pressing the switch for 0.3 seconds or less, the roof glass ...

Other materials about Toyota Venza:

Interior Light Auto Cut Circuit
DESCRIPTION When battery saving control operates while the interior lights are on, the main body ECU (driver side junction block assembly) opens the DOME CUT relay to turn off the lights. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fu ...

Removal
REMOVAL PROCEDURE 1. PRECAUTION CAUTION: Be sure to read Precaution thoroughly before servicing (See page ). 2. TURN FRONT WHEELS TO FACE STRAIGHT AHEAD 3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after discon ...

USB Audio System Recognition/Play Error
DESCRIPTION When a USB device or "iPod" is connected to the USB jack of the No. 1 stereo jack adapter assembly, it must have playable files. The device must also communicate with and be recognized by the radio and display receiver assembly. This ...