Tacoma

Toyota Tacoma 2015-2018 CAN Workshop Manual

Different connection statuses are indicated by the background color of ECUs and sensors that are displayed.
Explanation of CAN Bus Check Screen
BUS TYPE BACKGROUND
COLOR
CONNECTION STATUS
V Bus
White
Communication has been normal since the start of the CAN
bus check.
Yellow
Communication stop occurred at least once since the start of
the CAN bus check, but communication is currently occurring
(unstable communication).
Red
Communication was established at least once since the start of
the CAN bus check, but communication is currently not
occurring (unstable communication).
Not displayed
Communication stop has continued since the start of the CAN
bus check.*1
Sub bus
(gateway function equipped
ECU that does not have
history of connected ECUs)*2
White
Communication has been normal since the start of the CAN
bus check.
Yellow
Communication stop occurred at least once since the start of
the CAN bus check, but communication is currently occurring
(unstable communication).
Red
Communication was established at least once since the start of
the CAN bus check, but communication is currently not
occurring (unstable communication).
Not displayed
Communication stop has continued since the start of the CAN
bus check.*1
Sub bus
(gateway function equipped
ECU that has history of
connected ECUs)*3
White
Communication has been normal since the start of the CAN
bus check.
Yellow
Communication stop occurred at least once since the start of
the CAN bus check, but communication is currently occurring
(unstable communication).
Red
Currently not communicating (either of the following):
Communication stop has continued since the start of
the CAN bus check.
Communication was established at least once since
the start of the CAN bus check, but communication
is currently not occurring.
Not displayed
Either of the following:
If a gateway function equipped ECU cannot
communicate, the sub bus and ECUs connected to
the sub bus will not be displayed.
If no ECUs are connected to the sub bus, "There is
no system found on the Communication Bus" will be
displayed.
HINT:
cardiagn.com

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