Lexus ES300 (1997 year). Manual — part 55
AC0BT–01
N21075
N21076
N21078
LCD Lighting
Night Lighting
Night Lighting
AC–104
–
AIR CONDITIONING
AIR CONDITIONING CONTROL ASSEMBLY
1661
1997 LEXUS ES300 (RM511U)
DISASSEMBLY
1.
REMOVE A/C AMPLIFIER
(a)
Release the 4 claws and remove the rear cover.
(b)
Pull out the A/C amplifier backward.
HINT:
Hold the supply parts A/C amplifier using the electrostatic pre-
vention bag it comes packed in.
2.
SEPARATE A/C CONTROL PANEL AND A/C AMPLIFI-
ER CASE
(a)
Remove the 3 screws.
(b)
Release the 4 claws, then separate the A/C control panel
and A/C amplifier case.
3.
REMOVE BULB
Using a screwdriver, turn the bulb to left and pull out the bulb.
Z19570
28
18
AC0BU–02
Z19568
30
29
42
–
AIR CONDITIONING
AIR CONDITIONING CONTROL ASSEMBLY
AC–105
1662
1997 LEXUS ES300 (RM511U)
INSPECTION
1.
INSPECT NIGHT LIGHTING
Connect the positive (+) lead from the battery to terminal 28 and
the negative (–) lead to terminal 18, then check that the illumina-
tion lights up.
If there is bulb not light up, replace the bulb only.
If all bulb does not light up, replace the A/C control panel.
2.
INSPECT LCD LIGHTING
Connect the positive (+) lead from the battery to terminal 29, 42
and the negative (–) lead to terminal 30, then check that the illu-
mination lights up.
If there is bulb not light up, replace the replace the bulb only.
If the 2 bulbs do not light up, try replace the bulb with a new one
If the bulbs do not light up, replace the A/C control panel.
Z19567
29
42
30
Z19569
21
30
AC–106
–
AIR CONDITIONING
AIR CONDITIONING CONTROL ASSEMBLY
1663
1997 LEXUS ES300 (RM511U)
3.
INSPECT SWITCH OPERATION
(a)
Connect the positive (+) lead from the battery to terminal
29, 42 and the negative (–) lead to terminal 30.
(b)
Operate the switches and check that the indicator and
LCD indication change, as shown in the illustration.
If operation is not as specified, replace the A/C control panel.
4.
INSPECT SECURITY INDICATOR
Connect the positive (+) lead from the battery to terminal 21 and
negative (–) lead to terminal 30, then check that the indicator
light up.
If operation is not as specified, replace the A/C control panel.
5.
INSPECT A/C CONTROL ASSEMBLY CIRCUIT (See
page
)
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