Toyota 4Runner: 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 symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate |
Power door lock control system |
|
|
Electrical key transmitter |
|
|
|
Transmitter battery |
|
|
|
Door control receiver |
|
|
|
Certification ECU |
|
|
|
Harness or connector |
|
|
|
All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate |
Electrical key transmitter |
|
|
Certification ECU |
|
|
|
Driver Side Door Entry Unlock Function does not Operate |
Power door lock control system |
|
|
Front door outside handle assembly (for driver side) |
|
|
|
Certification ECU |
|
|
|
Harness or connector |
|
|
|
Front Passenger Side Door Entry Unlock Function does not Operate |
Power door lock control system |
|
|
Front door outside handle assembly (for front passenger side) |
|
|
|
Certification ECU |
|
|
|
Harness or connector |
|
|
|
Driver Side Door Entry Lock and Unlock Functions do not Operate |
Power door lock control system |
|
|
Front door outside handle assembly (for driver side) |
|
|
|
Certification ECU |
|
|
|
Harness or connector |
|
|
|
Front Passenger Side Door Entry Lock and Unlock Functions do not Operate |
Power door lock control system |
|
|
Front door outside handle assembly (for front passenger side) |
|
|
|
Certification ECU |
|
|
|
Harness or connector |
|
|
|
Driver Side Door Entry Lock Function does not Operate |
Power door lock control system |
|
|
Front door outside handle assembly (for driver side) |
|
|
|
Certification ECU |
|
|
|
Harness or connector |
|
|
|
Front Passenger Side Door Entry Lock Function does not Operate |
Power door lock control system |
|
|
Front door outside handle assembly (for front passenger side) |
|
|
|
Certification ECU |
|
|
|
Harness or connector |
|
|
|
Room Oscillator does not Recognize Key |
Smart key system (for Start Function) |
|
|
Indoor No. 1 electrical key antenna (front floor) |
|
|
|
Indoor No. 2 electrical key antenna (rear floor) |
|
|
|
Indoor No. 2 electrical key antenna (inside luggage) |
|
|
|
Certification ECU |
|
|
|
Harness or connector |
|
|
|
Electrical key transmitter |
|
|
|
Entry Interior Alarm does not Sound |
Meter/gauge system |
|
|
Certification ECU |
|
|
|
Back Door Entry Unlock Function does not Operate |
Power door lock control system |
|
|
Back door control switch |
|
|
|
Certification ECU |
|
|
|
Harness or connector |
|
|
|
Back Door Entry Lock and Unlock Functions do not Operate |
Power door lock control system |
|
|
Electrical key antenna (outside luggage) |
|
|
|
Certification ECU |
|
|
|
Harness or connector |
|
|
|
Back Door Entry Lock Function does not Operate |
Power door lock control system |
|
|
Back door control switch |
|
|
|
Certification ECU |
|
|
|
Harness or connector |
|
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Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Key / ...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK CERTIFICATION ECU
(a) Disconnect the F79 certification ECU connector.
(b) Measure the voltage and resistance according to the value(s) in the table
below.
...
Other materials about Toyota 4Runner:
TS and CG Terminal Circuit
DESCRIPTION
The signal check circuit detects trouble in the sensor or switch signal which
cannot be detected by the DTC check.
Connecting terminals TS and CG of the DLC3 starts the check.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When replacing ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
NOTICE:
In the table below, the valves listed under "Normal Condition" are reference
values. Do not depend solely on these reference values when deciding whether a part
is faulty or not.
HINT:
Using the T ...
0.01