Tacoma

Toyota Tacoma 2015-2018 CAN Workshop Manual

Short between CAN lines (CANH and CANL)
Short between a CAN line (CANH or CANL) and ground
Short between a CAN line (CANH or CANL) and +B
Open in a CAN branch line (CANH or CANL) of an ECU or sensor
Open in a CAN main bus line (CANH or CANL) between 2 ECUs that have a terminating resistor
6. DTC TABLE BY ECU
HINT:
In the CAN communication system, the CAN communication DTCs of each ECU can be displayed using the
Techstream.
If CAN communication system DTCs are output, the malfunction cannot be determined only by the DTCs.
Perform troubleshooting according to How to Proceed with Troubleshooting .
If system function temporarily returns to normal, DTCs may not be output again even though the following
DTC check procedures are used.
(a) ECM / Techstream Display "Engine"
HINT:
This ECU uses the CAN communication system for DTC communication.
*: Refer to SFI System (for 2GR-FKS) .
ECM / Techstream Display "Engine"
DTC DETECTION
ITEM
DTC
DETECTION
CONDITION
DTC DETECTION
PRE-CONDITION
DTC CHECK
PROCEDURE
WARNING
INDICATION
IN METER
DTC STORAGE
METHOD
U0101*
Lost
Communication
with TCM
The ECM does
not receive
data from the
ECM for 1.25
seconds or
more.
Both conditions are
met:
The
ignition
switch is
ON.
The power
source
voltage of
the ECM is
10.5 V or
more.
Turn the
ignition switch
to ON and wait
at least 5
seconds.
MIL
illuminates.
DTC is stored
until it is
cleared using
the
Techstream.
(b) ECM / Techstream Display "Transmission"
HINT:
This ECU uses the CAN communication system for DTC communication.
*: Refer to Automatic Transmission System (for 2GR-FKS) .
ECM / Techstream Display "Transmission"
DTC DETECTION
ITEM
DTC
DETECTION
CONDITION
DTC DETECTION
PRE-CONDITION
DTC CHECK
PROCEDURE
WARNING
INDICATION
IN METER
DTC STORAGE
METHOD
U0100*
Lost
Communication
with ECM / PCM
The ECM does
not receive
data from the
Both conditions are
met:
Turn the
ignition switch
to ON and wait
MIL
illuminates.
DTC is stored
until it is
cleared using
cardiagn.com

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