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:
Tire information
Typical tire symbols
1. Tire size
2. Summer tire or all season tires An all season tire has “M+S” on the
sidewall. A tire not marked “M+S” is a summer tire.
3. Uniform tire quality grading For details, see “Uniform Tire Quality
Grading” t ...
Four-wheel drive system (full-time 4WD models)
Use the four-wheel drive control switch to select the following transfer
modes:
1. H4F (high speed position)
Use this for normal driving on dry hard-surfaced roads. This position gives
greater economy, quietest ride and least wear.
2. H4L (high speed ...
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