Toyota Tacoma 2015-2018 Service Manual: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use these procedure to troubleshoot the seat belt warning system.
- *: Use the Techstream.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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.gif)
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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:
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What |
Vehicle, system name |
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When |
Date, time, occurrence frequency |
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Where |
Road conditions |
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Under what conditions? |
Driving conditions, weather conditions |
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How did it happen? |
Problem symptoms |
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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.
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4. |
CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
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Result |
Proceed to |
|---|---|
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CAN DTC is not output |
A |
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CAN DTC is output |
B |
| B | .gif) |
GO TO CAN COMMUNICATION SYSTEM |
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5. |
CHECK FOR DTC (AIRBAG SYSTEM)* |
(a) Clear the DTC.
Click here .gif)
(b) Recheck for DTCs.
|
Result |
Proceed to |
|---|---|
|
DTC is not output |
A |
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DTC is output |
B |
| B | |
GO TO AIRBAG SYSTEM |
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6. |
CHECK FOR DTC (OCCUPANT CLASSIFICATION SYSTEM)* |
(a) Clear the DTC.
Click here
(b) Recheck for DTCs.
|
Result |
Proceed to |
|---|---|
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DTC is not output |
A |
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DTC is output |
B |
| B | |
GO TO OCCUPANT CLASSIFICATION SYSTEM |
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7. |
PROBLEM SYMPTOMS TABLE |
(a) Refer to the Problem Symptoms Table.
Click here
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Result |
Proceed to |
|---|---|
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Fault is not listed in Problem Symptoms Table |
A |
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Fault is listed in Problem Symptoms Table |
B |
| B | |
GO TO STEP 9 |
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8. |
OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Data List / Active Test.
Click here
(b) Terminals of ECU.
Click here
(c) On-vehicle Inspection.
Click here
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9. |
REPAIR OR REPLACE |
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10. |
CONFIRMATION TEST |
| NEXT | |
END |
Customize Parameters
CUSTOMIZE PARAMETERS
1. CUSTOMIZE FUNCTION WITH TECHSTREAM
NOTICE:
Be sure to record the current settings before customizing.
These buzzers should be ON for safe driving. Perform these ...
System Description
SYSTEM DESCRIPTION
1. SEAT BELT WARNING SYSTEM DESCRIPTION
(a) Seat belt warning light operation for driver seat belt:
The seat belt warning light on the combination meter assembly illuminates, bli ...
Other materials:
Customize Parameters
CUSTOMIZE PARAMETERS
1. CUSTOMIZING FUNCTION WITH TECHSTREAM
NOTICE:
When the customer requests a change in a function, first make sure that
the function can be customized.
Be sure to make a note of the current settings before customizing.
When troubleshooting a function, f ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
The ECM of this system is connected to the CAN communication system.
Therefore, before starting troubleshooting, make sure to check that there
is no trouble in the CAN and multiplex communication system.
*: Use the Techstream.
PROCEDURE
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Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
...