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:
Speaker Circuit
DESCRIPTION
If there is a short in a speaker circuit, the radio and display receiver assembly
detects it and stops output to the speakers.
Thus sound cannot be heard from the speakers even if there is no malfunction
in the radio and display receiver asse ...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
HINT:
When DTC B1650/32 is stored as a result of troubleshooting for the airbag system,
perform troubleshooting for the occupant classification system.
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch t ...
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