2000 LEXUS GS400 Service Repair Manual

AC0XU±01
I02319
A/C Amplifier
± AIR CONDITIONINGAIR CONDITIONING AMPLIFIER (Electrical Multi Vision)
AC±89
2774 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
AIR CONDITIONING AMPLIFIER
(Electrical Multi Vision)
REMOVAL
1. REMOVE A/C CONTROL ASSEMBLY
(See page AC±86)
2. REMOVE A/C AMPLIFIER
Remove the 8 bolts, 2 screws and 2 bracket, then remove the
amplifier.

AC0XV±01
AC±90
± AIR CONDITIONINGAIR CONDITIONING AMPLIFIER (Electrical Multi Vision)
2775 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSPECTION
INSPECT A/C AMPLIFIER CIRCUIT
(See page DI±1067)

AC0XW±01
± AIR CONDITIONINGAIR CONDITIONING AMPLIFIER (Electrical Multi Vision)
AC±91
2776 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
Installation is in the reverse order of removal (See page AC±89).

AC0XX±01
I05028
AC±92
± AIR CONDITIONINGENGINE COOLANT TEMPERATURE (ECT) SWITCH
2777 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
ENGINE COOLANT
TEMPERATURE (ECT) SWITCH
REMOVAL
1. REMOVE ENGINE UNDER COVER
2. DRAIN ENGINE COOLANT FROM RADIATOR
HINT:
It is not necessary to drain out all coolant
3. REMOVE ECT SWITCH
(a) Disconnect the connector.
(b) Remove the ECT switch.
Torque: 7.4 N´m (75 kgf´cm, 65 in.´lbf)
(c) Remove the O±ring from ECT switch.
HINT:
At the time of installation, please refer to the following item.
Lubricate a new O±ring with soapy water and install the switch.

AC0XY±01
P01924
Ohmmeter
± AIR CONDITIONINGENGINE COOLANT TEMPERATURE (ECT) SWITCH
AC±93
2778 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSPECTION
INSPECT ECT SWITCH
(a) Using an ohmmeter, check that no continuity exists be-
tween the terminals when the coolant temperature is
above 100 °C (212 °F).
If continuity exists, replace the switch.
(b) Using an ohmmeter, check that continuity exists between
the terminals when the coolant temperature is below
91 °C (196 °F).
If there no continuity exists, replace the switch.

AC0XZ±01
AC±94
± AIR CONDITIONINGENGINE COOLANT TEMPERATURE (ECT) SWITCH
2779 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
Installation is in the reverse order of removal (See page AC±92).

AC0Y0±01
I03748
± AIR CONDITIONINGAIR REFINER FILTER
AC±95
2780 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
AIR REFINER FILTER
REMOVAL
1. REMOVE GLOVE COMPARTMENT DOOR
(See page BO±91)
2. REMOVE AIR REFINER FILTER
(a) Remove the cover.
(b) Pull out the air refiner filter.

AC0Y1±01
AC±96
± AIR CONDITIONINGAIR REFINER FILTER
2781 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
Installation is in the reverse order of removal (See page AC±95).