Hint:

How to proceed with troubleshooting
Terminals of ecuCan bus line
Description
When any dtc for the can communication system is output, first measure the
resistance between the
terminals of the dlc3 to specify the trouble area, and check that there is not a
short in the can main wire,
between the main wire, to +b, or to gnd.
Wiring diagram
Inspecti ...
Checking monitor status
Perform monitor drive pattern
Connect the intelligent tester to the dlc3.
Turn the ignition switch and the tester on.
Clear the dtcs (see page es-35).
Run the vehicle in accordance with the applicable
drive pattern described in readiness monitor
drive pattern (see page es-19). Do ...
Reassembly
Install evaporator temperature sensor
Notice:
If reusing the evaporator, do not insert the sensor to
a location where the sensor was previously inserted.
Insert the sensor within range c shown in the
illustration.
Install the evaporator temperature sensor as shown
in the illustrati ...