Toyota Tacoma 2015-2018 Service Manual: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure to troubleshoot the sliding roof system.
- *: Use the Techstream.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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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 for problem analysis:
|
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. |
INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Using the Techstream, check if the CAN communication system is functioning normally.
Click here .gif)
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Result |
Proceed to |
|---|---|
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DTC is not output |
A |
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DTC is output |
B |
| B | .gif) |
GO TO CAN COMMUNICATION SYSTEM |
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5. |
INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM* |
(a) Using the Techstream, check if the LIN communication system is functioning normally.
Click here
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Result |
Proceed to |
|---|---|
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DTC is not output |
A |
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DTC is output |
B |
| B | |
GO TO LIN COMMUNICATION SYSTEM |
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6. |
CHECK FOR DTC* |
(a) Check for DTCs and make a note of any codes that are output.
Click here
(b) Clear the DTCs.
(c) Recheck for DTCs.
|
Result |
Proceed to |
|---|---|
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DTCs are not output |
A |
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DTCs are output |
B |
| B | |
GO TO DIAGNOSTIC TROUBLE CODE CHART |
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7. |
PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
Click here
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Result |
Proceed to |
|---|---|
|
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) Operation Check.
Click here
(b) Terminals of ECU.
Click here
(c) Data List / Active Test.
Click here
|
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9. |
ADJUST, REPAIR OR REPLACE |
(a) Check if the sliding roof drive gear sub-assembly has been replaced, or the sliding roof glass sub-assembly or sliding roof drive cable sub-assembly has been adjusted, or removed and installed.
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Result |
Proceed to |
|---|---|
|
The sliding roof drive gear sub-assembly has been replaced, or sliding roof glass sub-assembly or sliding roof drive cable sub-assembly has been adjusted, or removed and installed. |
A |
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The sliding roof drive gear sub-assembly has not been replaced, and sliding roof glass sub-assembly and sliding roof drive cable sub-assembly have not been adjusted, or removed and installed. |
B |
| B | |
GO TO STEP 11 |
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|
10. |
INITIALIZE SLIDING ROOF SYSTEM |
(a) Initialize the sliding roof ECU (sliding roof drive gear sub-assembly).
Click here
HINT:
If initialization has not been performed, the auto operation, jam protection function, key-off operation, key-linked function, wireless transmitter-linked function and sliding roof open warning will not operate or will operate incorrectly.
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11. |
CONFIRMATION TEST |
| NEXT | |
END |
Customize Parameters
CUSTOMIZE PARAMETERS
PROCEDURE
1. CUSTOMIZE SLIDING ROOF SYSTEM
HINT:
The following items can be customized.
NOTICE:
When the customer requests a change in a function, first make sure th ...
Operation Check
OPERATION CHECK
1. CHECK AUTO OPERATION
NOTICE:
Make sure that initialization has been completed before inspection (See
page ).
The sliding roof auto operation can be customized. M ...
Other materials:
Lost Communication With Image Processing Module "A" (U023A)
DESCRIPTION
The millimeter wave radar sensor assembly communicates with the forward recognition
camera via CAN communication. If there is a communication error with the forward
recognition camera, the millimeter wave radar sensor assembly stores DTC U023A.
DTC No.
Detecti ...
Skid Control Buzzer Circuit (C1A4A)
DESCRIPTION
Based on dynamic radar cruise control system operation, the forward recognition
camera provides warnings to the driver by sounding the skid control buzzer.
DTC C1A4A is stored when a malfunction is detected in the skid control buzzer
circuit.
DTC No.
Detectio ...
Confirm Cellular Phone Functionality
PROCEDURE
1.
CHECK THE CUSTOMER'S CELLULAR PHONE COMPATIBILITY
(a) Go to TIS "Bluetooth" Compatibility Portal and check if the cellular phone
is compatible.
Result
Result
Proceed to
Cellular phone is compatibl ...
