DTC Logic

Diagnosis Procedure
1.PERFORM THE SELF-DIAGNOSIS
When U122A is detected, write configuration data with "MULTI AV" of CONSULT.
U122E AV CONTROL UNIT
DTC Logic
DTC DETECTION LOGIC

U121D AV control unit
U1232 steering angle sensorClimate controlled seat
Wiring Diagram
...
Automatic air conditioner system
System Diagram
CONTROL SYSTEM
The control system consists of input sensors, switches, the A/C auto amp.
(microcomputer) and outputs. The
relationship of these components is as shown in the figure below:
System Description
CONTROL OPERATION
Display
The operation status of the HVAC system ...
ECU diagnosis information
A/C AUTO AMP.
Reference Value
VALUES ON THE DIAGNOSIS TOOL
CONSULT MONITOR ITEM
A/C AUTO AMP. HARNESS CONNECTOR TERMINAL LAYOUT
TERMINALS AND REFERENCE VALUES FOR A/C AUTO AMP.
DTC Inspection Priority Chart
If some DTCs are displayed at the same time, perform inspections one b ...