Toyota 4Runner: 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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|
2. |
INSPECT BATTERY VOLTAGE |
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
|
|
3. |
CHECK DTC* |
(a) Check for DTCs and make a note of any codes that are output (See page
.gif)
).
(b) Clear the DTCs (See page ).
(c) Recheck for DTCs (See page ). Based on the
DTCs output above, try to cause the output of the same wireless door lock control
system DTC, LIN communication system DTC, steering lock system DTC, engine immobiliser
system DTC or smart key system (for entry function) DTC by reproducing the symptoms
indicated by the DTC.
|
Result |
Proceed to |
|---|---|
|
DTC is not output. |
A |
|
Wireless door lock control system DTC is output. |
B |
|
LIN communication system DTC is output. |
C |
|
Steering lock system DTC is output. |
D |
|
Engine immobiliser system DTC is output. |
E |
|
Smart key system (for entry function) DTC is output. |
F |
| B | .gif) |
GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) |
| C | |
GO TO LIN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) |
| D | |
GO TO DIAGNOSTIC TROUBLE CODE CHART |
| E | |
GO TO ENGINE IMMOBILISER SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) |
| F | |
GO TO SMART KEY SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) |
|
|
4. |
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 6 |
|
|
5. |
OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Terminals of ECU (See page ).
(b) Data List / Active Test (See page ).
|
|
6. |
REPAIR OR REPLACE |
|
|
7. |
CONFIRMATION TEST |
| NEXT | |
END |
System Diagram
SYSTEM DIAGRAM
Input and Output Signal of Each ECU
Transmitting ECU (Transmitter)
Receiving ECU (Receiver)
Signal
Communication Method
P ...
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 about Toyota 4Runner:
Inspection
INSPECTION
PROCEDURE
1. CHECK BRAKE DISC INSIDE DIAMETER
(a) Using a brake drum gauge or equivalent, measure the inside diameter
of the disc.
Standard inside diameter:
210 mm (8.27 in.)
Maximum inside diameter:
211 mm (8.31 in.) ...
Automatic door locking and unlocking systems
The following functions can be set or canceled:
Setting and canceling the functions
To switch between setting and canceling, follow the procedure below:
Vehicles without a smart key system
Close all the doors and turn the engine switch to the “ON� ...
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