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:
Manual (SOS) Switch Green Indicator Malfunction (B1571)
DESCRIPTION
This DTC is stored when the DCM (Telematics Transceiver) detects an open or short
in the manual (SOS) switch green indicator circuit of the manual (SOS) switch. The
manual (SOS) switch green indicator illuminates after the ignition switch is t ...
Key information
Keys
The following keys are provided with the vehicle.
Vehicles without a smart key system
1. Master keys Operating the wireless remote control function
2. Valet key
3. Key number plate
Vehicles with a smart key system
1. Electronic keys
• Ope ...
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