Toyota Tacoma (2015-2018) Service Manual: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use the following procedures to troubleshoot the steering lock 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 |
(a) Interview the customer and confirm the problem.
Click here .gif)
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3. |
CHECK 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.
HINT:
A simple method to determine whether the battery is depleted is to operate the horn.
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4. |
CHECK DTC* |
(a) Check for DTCs and make a note of any codes that are output.
Click here
HINT:
When DTCs indicating CAN and/or LIN communication system malfunctions are output, repair the CAN and/or LIN communication systems before performing diagnosis.
- for CAN communication system: Click here
- for LIN communication system: Click here
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Result |
Proceed to |
|---|---|
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DTCs are not output. (Problem symptom cannot be confirmed or reproduced.) |
A |
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DTCs are not output. (Problem symptom can be confirmed and reproduced.) |
B |
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Steering lock system DTCs are output. |
C |
HINT:
- When steering lock system DTCs are output, refer to Diagnostic Trouble
Code Chart.
Click here
- The steering lock system does not store history DTCs.
| B | .gif) |
GO TO STEP 6 |
| C | |
GO TO STEP 8 |
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5. |
SYMPTOM SIMULATION |
(a) Proceed to How to Proceed with Troubleshooting.
Click here
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6. |
PROBLEM SYMPTOMS TABLE |
(a) Proceed to 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 8 |
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7. |
OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Proceed to Data List / Active Test.
Click here
(b) Proceed to Terminals of ECU.
Click here
| NEXT | |
GO TO STEP 9 |
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8. |
CIRCUIT INSPECTION* |
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9. |
REPAIR OR REPLACE |
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10. |
CHECK DTC AGAIN* |
(a) Clear the DTCs.
Click here
(b) Check for DTCs and make a note of any codes that are output.
Click here
HINT:
Perform the DTC output confirmation operation.
|
Result |
Proceed to |
|---|---|
|
DTCs are not output. |
A |
|
Steering lock system DTCs are output. |
B |
| A | |
END |
| B | |
GO TO DIAGNOSTIC TROUBLE CODE CHART |
System Diagram
SYSTEM DIAGRAM
Circuit Description
Component
Outline
Steering Lock ECU (Steering Lock Actuator or UPR Bracket Assembly)
The steering is ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are lis ...
Other materials:
Removal
REMOVAL
PROCEDURE
1. REMOVE WATER INLET WITH THERMOSTAT SUB-ASSEMBLY
(See page )
2. REMOVE NO. 1 RADIATOR HOSE
3. REMOVE NO. 2 RADIATOR HOSE
4. DISCONNECT RADIATOR RESERVE TANK HOSE
5. SEPARATE TRANSMISSION OIL COOLER HOSE (for Automatic Transmission)
(a) Disengage the c ...
Data List / Active Test
DATA LIST / ACTIVE TEST
HINT:
By accessing the Data List displayed by the Techstream, you can check values
of switches and sensors without removing any parts. Reading the Data List as the
first step of troubleshooting is one method to shorten diagnostic time.
1. DATA LIST FOR OCCUPANT DETECTI ...
Installation
INSTALLATION
CAUTION / NOTICE / HINT
CAUTION:
Some of these service operations affect the SRS airbag system. Read the precautionary
notices concerning the SRS airbag system before servicing.
Click here
PROCEDURE
1. INSTALL FRONT SEAT INNER BELT ASSEMBLY
(a) for Driver Side:
(1) Install t ...
