Diagnosis Procedure
1.CHECK CONNECTOR
2.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

3.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Check the continuity between the harness connector and the data link connector.

Main line between DLC and HVAC circuitClip list
Descriptions for Clips
Replace any clips which are damaged during removal or installation.
...
Precaution
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and
"SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT
PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk
or severity of injury to the driver and front passenger for ...
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 ...