Toyota 4Runner: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use these procedures to troubleshoot the theft deterrent system.
- *: Use the Techstream.
- The troubleshooting procedures for the theft deterrent system are based on the premise that the door lock control system, wireless door lock control system, lighting system, horn system, engine immobiliser system and smart key system (w/ Smart Key System) are operating normally. Check these systems first before troubleshooting the theft deterrent system.
PROCEDURE
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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.
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3. |
CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
|
Result |
Proceed to |
|---|---|
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CAN DTC is not output |
A |
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CAN DTC is output |
B |
| B | .gif) |
GO TO CAN COMMUNICATION SYSTEM |
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4. |
CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM* |
(a) The theft deterrent system uses the LIN communication system to communicate. Check that the LIN communication system is functioning normally.
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Result |
Proceed to |
|---|---|
|
LIN communication system is normal |
A |
|
LIN communication system is malfunctioning |
B |
| B | |
GO TO LIN COMMUNICATION SYSTEM |
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5. |
PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table (See page
.gif)
).
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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 8 |
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6. |
OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Data List / Active Test (See page ).
(b) Terminals of ECU (See page ).
(c) Inspection
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7. |
REPAIR OR REPLACE |
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8. |
CONFIRMATION TEST |
| NEXT | |
END |
System Diagram
SYSTEM DIAGRAM
...
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:
Instrument Panel Speaker
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for both the RH and LH sides.
The procedure listed below is for the LH side.
PROCEDURE
1. REMOVE FRONT PILLAR GARNISH LH
...
Terminals Of Ecu
TERMINALS OF ECU
HINT:
Operating the ignition switch, any switches or any doors triggers related ECU
and sensor communication with the CAN, which causes resistance variation.
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
(a) Disconnect the cable fro ...
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