Toyota 4Runner: Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Lighting system data and the Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and to repair.
2. CHECK DLC3
(a) Check the DLC3 (See page .gif)
).
3. INSPECT BATTERY VOLTAGE
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY, MAIN BODY ECU (MULTIPLEX NETWORK
BODY ECU)
(a) Remove the main body ECU (See page ).
(b) Measure the resistance and voltage accor ...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / (desired sy ...
Other materials about Toyota 4Runner:
Body
General Maintenance
GENERAL MAINTENANCE
PROCEDURE
1. TIGHTEN BOLTS AND NUTS ON CHASSIS AND BODY
(a) Where necessary, tighten all the parts of the chassis.
Front axle and suspension
Drivetrain
Rear axle and suspension
Brake system
...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL FRONT PROPELLER SHAFT UNIVERSAL JOINT SPIDER BEARING
HINT:
Use the same procedure for all propeller shaft universal joint spider bearing.
(a) Apply MP grease to a new spider and spider bearing.
NOTICE:
Be c ...
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