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4-7 [T4s11
AUTOMATIC AIR CONDITIONING SYSTEM
B: FUNCTION
1 . HOW TO START THE SELF-DIAGNOSIS
Start engine .
4__
F
Warm up engine.
4-
4-
" Ignition switch is OFF .
" Engine water temperature is
40°C (104°F) or more .
" Direct 100W light to sunload
sensor .
START
OFF switch
AUTO switch
o
OFF
AUTO
ECoON
°o
°
®DEF
VENT
CIRC
0
Omp LO--8 1 -HI
0
1 11
(:~) (
I - I - )
I
C4-659
START
With ON with OFF and AUTO
switches pressed, turn ignition
switch ON .
Self-diagnosis does not start .
Hg. 7 69
* STEP-1
o
O
OFF
A
O
1" "
o
°
~~
~ ® EF
v rT
C
TEMP
-1717
11
OUTOEW
STEP 1
" Check whether all switch LEDs
turn ON .*1
" Check whether all segments on
set temperature display turn
ON .
Check auto amplifier power sup-
ply and GND circuits.
Not OK
OK
Elapse of 9 seconds
To be continued .
With OFF and OUT. TEMP switches, only green
LED turns ON.
76
Faulty control panel (incl . auto
amplifier)
'1 : Amber LED turns ON first, then
after approx . 4 seconds, green LED
turns ON .
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Troubleshooting
