Toyota Venza: How To Proceed With Troubleshooting

Toyota Venza Service Manual / Door Lock / Key Reminder Warning System / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

Use the following procedure to troubleshoot the key reminder warning 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.	INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, inspect the CAN communication function to ensure that there are no malfunctions in the communication system.

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

GO TO CAN COMMUNICATION SYSTEM

5.	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 7

6.	OVERALL ANALYSIS AND TROUBLESHOOTING*

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

(b) Terminals of ECU (See page )

7.	REPAIR OR REPLACE

8.	CONFIRMATION TEST

END

System Description

SYSTEM DESCRIPTION 1. KEY REMINDER WARNING SYSTEM DESCRIPTION (a) When the driver side door is opened with the key in ACC or LOCK, this system causes a buzzer to sound in order to warn the driver ...

Operation Check

OPERATION CHECK 1. CHECK FUNCTION (a) Check that the key reminder warning buzzer sounds. (1) With the driver side door closed, insert the key into the ignition key cylinder and then make sure tha ...

Other materials about Toyota Venza:

All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch
DESCRIPTION The main body ECU (driver side junction block assembly) receives switch signals from the door control switch and activates the door lock motor on each door according to these signals. WIRING DIAGRAM PROCEDURE 1. REA ...

Reassembly
REASSEMBLY PROCEDURE 1. INSTALL BEARING BRACKET HOLE SNAP RING (for RH Side) (a) Install a new bearing bracket hole snap ring to the front drive shaft assembly RH. 2. INSTALL FRONT DRIVE SHAFT BEARING (for RH Side) (a) Using SST, install a ne ...

Inspection
INSPECTION PROCEDURE 1. INSPECT BRAKE VACUUM CHECK VALVE ASSEMBLY (a) Check that there is ventilation from the booster to the engine, and no ventilation from the engine to the booster. If the results are not as specified, replace the brake ...