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:
Red Indicator Remains On
DESCRIPTION
This means that the DCM (Telematics Transceiver) detects a malfunction in the
Safety Connect and stores a DTC.
PROCEDURE
1.
CHECK FOR DTC
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC ...
Fail-safe Chart
FAIL-SAFE CHART
If a problem occurs in the power steering system, the power steering warning
light in the combination meter comes on and the power steering assist is stopped,
locked at a particular point or decreased simultaneously to protect the system.
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