Toyota 4Runner: Diagnosis System
DIAGNOSIS SYSTEM
1. CHECK DLC3
(a) Check the DLC3 (See page .gif)
).
2. CHECK INDICATOR
(a) When a malfunction is detected in the Safety Connect system, the manual (SOS)
switch red indicator on the manual (SOS) switch illuminates to inform the driver
of the malfunction (See page ).
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK DCM (TELEMATICS TRANSCEIVER)
Text in Illustration
*a
Connector color: Blue
(to Telephone antenna)
*b
Connector color: Gray
...
Dtc Check / Clear
DTC CHECK / CLEAR
1. DTC CHECK/CLEAR (Using the Techstream)
(a) Check DTC:
(1) Connect the Techstream to the DLC3.
(2) Turn the ignition switch to ON.
(3) Turn the Techstream on.
(4) Enter the f ...
Other materials about Toyota 4Runner:
Seat Belt Buckle Switch LH Circuit Malfunction (B1656/38)
DESCRIPTION
The seat belt buckle switch LH circuit consists of the center airbag sensor and
front seat inner belt LH.
DTC B1656/37 is stored when a malfunction is detected in the seat belt buckle
switch LH circuit.
DTC Code
DTC Det ...
Lost Communication with ECM / PCM "A" (U0100)
DESCRIPTION
DTC Code
DTC Detection Condition
Trouble Area
U0100
There is no communication from the ECM.
Power source or inside ECM
ECM main wire or connector
ECM
...
0.0059