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
|
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)
|
|
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 |
|
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 |
|
|
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
|
Result |
Proceed to |
|---|---|
|
Fault is not listed in Problem Symptoms Table. |
A |
|
Fault is listed in Problem Symptoms Table. |
B |
| B | |
GO TO STEP 8 |
|
|
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 |
|
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:
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use these procedures to troubleshoot the lane departure alert system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
...
Automatic Disconnecting Differential Motor Control Circuit Open (P17A0)
DESCRIPTION
This DTC is output when an open circuit in the A.D.D. shift motor drive circuit
is detected.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
P17A0
Automatic Disconnecting Differential Motor Control Ci ...
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 listed in order of probability in the "Suspected Area" column of the
table. Check each sy ...
