Toyota CAMRY 2002 Service Manual page 130

BE-12
Self-Diagnosis
D The air conditioning ECU has a self-diagnosis function. It stores any operation failures in the air condi-
tioning system memory in the form of a malfunction code. By operating switches on the air conditioning
control switches, the stored malfunction code will be indicated. Since diagnostic results are stored direct-
ly by electric power from the battery, they are not cleared even when the ignition switch is turned off.
" Functions A
Function
Indicator Check
Sensor Check
Actuator Check
D The check function can be started by the following procedure shown below.
Turn ignition switch ON with AUTO
and R/F switches held down.
Indicator Check
OFF
Sensor Check
(Continuous Operation)
OFF
Sensor Check
(Stepped Operation)
For details on the indicator check, sensor check, actuator check function, and clearing DTCs of this system,
refer to the 2002 Camry Repair Manual (Pub. No. RM881U).
BODY ELECTRICAL — AIR CONDITIONING
Checks indicator lights and temperature setting display.
Checks the past and present malfunctions of the sensors, and clearing
the past malfunction data.
Checks against actuator check pattern if blower motor, servomotors and
magnetic clutch are operating correctly according to signals from ECU.
R/F
DEF
R/F
AUTO
DEF
Cancel Check Mode
(Normal Operation now possible)
Outline
If both AUTO and R/F switches are
not pressed at the same time.
Actuator Check
AUTO
(Continuous Operation)
DEF
R/F
Actuator Check
AUTO
(Stepped Operation)
DEF
Indicates a switch operation
OFF
OFF
187BE33