CAN COMMUNICATION SYSTEM
CAN System Specification Chart
Determine CAN system type from the following specification chart.
NOTE:
Refer to LAN-15, "Trouble Diagnosis Procedure" for how to use CAN system specification chart.

VEHICLE EQUIPMENT IDENTIFICATION INFORMATION
NOTE:
Check CAN system type from the vehicle shape and equipment.

1. Seat memory switches
A. With automatic drive positioner
2. Color display
B. With color display
CAN Communication Signal Chart
Refer to LAN-14, "How to Use CAN Communication Signal Chart" for how to use CAN communication signal chart.
NOTE:
Refer to LAN-20, "Abbreviation List" for the abbreviations of the connecting units.




NOTE:
CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
Basic inspection
Wiring diagramDiagnosis system (AV control unit)
Diagnosis Description
MULTIFUNCTION SWITCH AND PRESET SWITCH SELF-DIAGNOSIS FUNCTION
The ON/OFF operation (continuity) of each switch in the multifunction switch
and preset switch can be checked.
Self-Diagnosis Mode
Press the BACK switch and the
switch of the 8-direction switches with ...
P0451 evap control system pressure sensor
Description
The EVAP control system pressure sensor detects pressure in the
purge line. The sensor output voltage to the ECM increases as pressure
increases
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
NOTE:
Never remove fuel filler cap during DTC confirmation procedur ...
Air mix door control system
System Diagram
System Description
The air mix doors are automatically controlled so that in-vehicle temperature
is maintained at a predetermined
value by the temperature setting, ambient temperature, intake temperature and
amount of sunload.
SYSTEM OPERATION
The A/C auto amp. receive ...