Tacoma

Toyota Tacoma 2015-2018 CAN Workshop Manual

- TROUBLE MODE (CAN BUS LINES SHORT
CIRCUIT OR SHORT TO GND)
V BUS
OUTPUT ECU OUTPUT
DTC
CANH TO
CANL
CANH TO
GROUND SHORT
CANL TO
GROUND SHORT
U0124
U0126
Sub
Bus 2
Blind Spot Monitor Sensor LH
U0100
U0126
U0129
U0142
Network Gateway ECU*2
U0233 - - -
U1002 - - -
U1110 - - -
Clearance Warning ECU Assembly
U0100
U0101
U0142
U0155
HINT:
:
DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
8. DTC COMBINATION TABLE (OPEN IN CAN BRANCH OF SUB BUS, PAST COMMUNICATION
ERROR)
(a) Regarding a past communication error of ECU and sensor connected to the sub bus 2 (in this case, normal
is displayed when performing the CAN bus check, but communication DTCs are output), determine the part
that had a malfunction based on DTCs output from the network gateway ECU.
HINT:
As gateway function equipped ECUs (sub bus monitor ECUs) monitor signals from all ECUs that are
connected to sub buses, gateway function equipped ECUs can detect ECUs with a communication stop more
accurately.
DTCs output from ECUs other than the network gateway ECU (gateway function equipped ECU) are shown
only as a reference.
Regarding a communication stop that is currently occurring in the sub bus 2, the malfunctioning part can be
confirmed easily by performing the CAN Bus Check using the Techstream.
If an open occurs in just one of the lines of a CAN branch, DTCs which are not related to malfunctioning
parts may be output (DTCs may be displayed randomly), or a message indicating a communication error
may be displayed.
- TROUBLE MODE (OPEN IN ONE CAN BRANCH
LINE)
SUB BUS 2
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