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 and repair workflow
Work Flow
WORK FLOW
DETAILED FLOW
1. GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the symptom (the
condition and the environment when the incident/malfunction occurred).
2. CHECK DTC
Check DTC.
Perform the following procedure if DTC is displayed.
...
U1207 AV control unit
DTC Logic
Diagnosis Procedure
1.PERFORM THE SELF-DIAGNOSIS
Delete the "self-diagnosis" results of "MULTI AV". Turn ignition
switch OFF.
Turn ignition switch ON. Perform the self-diagnosis again.
Check that the DTC is detected again.
U1216 AV CONTROL UNIT
DTC Logic
U1217 AV ...
Oil
Description
MAINTENANCE OF OIL LEVEL
The compressor oil is circulating in the system together with the
refrigerant. It is necessary to fill compressor with oil when replacing A/C
system parts or when a large amount of refrigerant leakage is detected. It is
important to always maintain oil le ...