Tacoma

Toyota Tacoma 2015-2018 CAN Workshop Manual

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5.
PERFORM COMMUNICATION MALFUNCTION CHECK (CONNECTION STATUS CHECK
USING TECHSTREAM)
(a) Select "Communication Malfunction Check" from the screen on the Techstream.
(b) Record all the DTCs stored for ECUs and sensors.
6. PERFORM CAN BUS CHECK (CONNECTION STATUS CHECK USING TECHSTREAM)
(a) Based on the vehicle equipment and specifications, confirm the systems that use CAN communication
.
(b) Select "CAN Bus Check" from the screen on the Techstream.
(c) Observe the screen for approximately 2 minutes to check the ECUs and sensors displayed on the
screen.
7. CHECK DLC3 BRANCH LINE AND V BUS MAIN LINE (CANH - CANL)
NOTICE:
B
efore measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1
minute or more without operating the key, switches or opening or closing the doors. After that, disconnect
the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before
measuring the resistance.
HINT:
Operating the ignition switch, any other switches or a door triggers related ECU and sensor communication
on the CAN. This communication will cause the resistance value to change.
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