Lexus RX300 (MCU15). Service manual - part 394
I08326
AUTO SW
R/F SW
AC2163
Blinking Pattern
4 times
1 sec.
1 sec.
ON
OFF
I08327
Trouble Code Display
I08326
A/C SW
A05185
DLC3
Hand–held Tester
DI–806
–
DIAGNOSTICS
AIR CONDITIONING SYSTEM
LEXUS RX300 (RM785E)
3.
INDICATOR CHECK
(a)
Turn the ignition switch on while pressing the A/C control
AUTO switch and R/F SW simultaneously.
(b)
Check that all the indicators light up and go off at 1 second
intervals 4 times in succession.
HINT:
S
After the indicator check is ended, the diagnostic trouble
code check begins automatically.
S
Press the OFF switch when desiring to cancel the check
mode.
4.
DTC CHECK (SENSOR CHECK)
(a)
Perform an indicator check. After the indicator check is
completed, the system enters the DTC check mode auto-
matically.
(b)
Read the DTC displayed on the panel. Refer to the list of
DTCs on page DI–809 when reading the DTCs.
(DTCs are out put at the temperature display.)
If the slower display is desired, press the Driver Side
Temp. Control Switch and change it to step operation.
Each time the Driver Side Temp. Control switch is
pressed, the display changes by 1 step.
5.
DTC CHECK USING HAND–HELD TESTER
(a)
Hook up the hand–held tester to the DLC3.
(b)
Read the diagnostic trouble codes by following the
prompts on the tester screen.
Please refer to the hand–held tester operator’s manual
for further details.