How To Proceed With Troubleshooting
HINT:
- Use the following procedure to troubleshoot the power door lock control system.
- *: Use the Techstream.
VEHICLE BROUGHT TO WORKSHOP
|
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 for problem analysis:
What |
Vehicle model, system name |
When |
Date, time, occurrence frequency |
Where |
Road conditions |
Under what conditions? |
Running conditions, driving conditions, weather conditions |
How did it happen? |
Problem symptoms |
|
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.
|
INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
(a) Use the Techstream to check if the LIN communication system is functioning normally (See page
).
Result | Proceed to |
|---|---|
LIN DTC is not output |
A |
LIN DTC is output |
B |
| B | ![]() | GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
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 7 |
|
OVERALL ANALYSIS AND TROUBLESHOOTING*
(a) Terminals of ECU (See page
)
(b) Data List / Active Test (See page
)
(c) Operation Check (See page
)
|
REPAIR OR REPLACE
|
CONFIRMATION TEST
| NEXT | ![]() | END |
Test yourself
A quick Toyota Venza quiz: every answer comes with an explanation and a link to the manual page.
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