Lexus NX: Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE AIR CONDITIONING RADIATOR ASSEMBLY
| (a) Disconnect the No. 1 blower damper servo sub-assembly connector. |
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(b) Detach the 3 clamps and remove the air conditioning harness assembly.
| (c) Remove the 2 screws. |
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(d) Detach the 2 claws and remove the air conditioning radiator assembly.
2. REMOVE ASPIRATOR
| (a) Remove the aspirator hose. |
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| (b) Detach the 2 claws and remove the aspirator. |
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3. REMOVE AIR CONDITIONING AMPLIFIER ASSEMBLY
| (a) Disconnect the air conditioning amplifier assembly connector. |
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(b) Remove the screw.
(c) Detach the guide and remove the air conditioning amplifier assembly as shown in the illustration.
4. REMOVE DRAIN COOLER HOSE
| (a) Remove the drain cooler hose. |
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5. REMOVE AIR CONDITIONING HARNESS ASSEMBLY
(a) Disconnect the 3 connectors.
(b) Detach the 4 clamps and remove the air conditioning harness assembly.
6. REMOVE QUICK HEATER ASSEMBLY
| (a) Remove the screw and quick heater assembly. |
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7. REMOVE NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY
| (a) Remove the 2 screws and No. 2 air conditioning radiator damper servo sub-assembly. |
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8. REMOVE NO. 1 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY
| (a) Remove the 3 screws and No. 1 air conditioning radiator damper servo sub-assembly. |
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9. REMOVE HEATER RADIATOR UNIT SUB-ASSEMBLY
| (a) Remove the screw. |
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(b) Detach the 2 claws and remove the clamp.
| (c) Remove the heater radiator unit sub-assembly from the air conditioning radiator assembly. |
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10. REMOVE COOLER EXPANSION VALVE
(a) Remove the cooling unit packing.
| (b) Using a 4 mm hexagon wrench, remove the 2 hexagon bolts and cooler expansion valve. |
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11. REMOVE NO. 1 COOLER EVAPORATOR SUB-ASSEMBLY
| (a) Remove the 2 screws. |
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(b) Detach the 10 claws and 7 guides, and remove the upper heater case.
| (c) Detach the clamp. |
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(d) Remove the No. 1 cooler evaporator sub-assembly with the No. 1 cooler thermistor.
NOTICE:
When the No. 1 cooler evaporator sub-assembly is removed, make sure to install a new one. The No. 1 cooler evaporator sub-assembly cannot be reused.
(e) Remove the 2 O-rings from the No. 1 cooler evaporator sub-assembly.
12. REMOVE NO. 1 COOLER THERMISTOR
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Reassembly
REASSEMBLY PROCEDURE 1. INSTALL NO. 1 COOLER THERMISTOR Click here 2. INSTALL NO. 1 COOLER EVAPORATOR SUB-ASSEMBLY (a) Sufficiently apply compressor oil to 2 new O-rings and the fitting surface of t
Installation
INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
A bolt without a torque specification is shown in the s
Ambient Temperature Sensor
ComponentsCOMPONENTS ILLUSTRATION *1 THERMISTOR ASSEMBLY (AMBIENT TEMPERATURE SENSOR) - - RemovalREMOVAL PROCEDURE 1. REMOVE FRONT BUMPER ASSEMBLY (a) for Sport Package: Click here (b
SEE MORE:
Inspection
INSPECTION PROCEDURE 1. INSPECT EGR VALVE ASSEMBLY (a) Measure the resistance. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 5 (+B2) - 4 (EGR1) 20°C (68°F) 18 to 22 Ω 5 (+B2) - 6
Components
COMPONENTS ILLUSTRATION *A except Sport Package - - *1 FRONT CENTER ULTRASONIC SENSOR *2 FRONT CORNER ULTRASONIC SENSOR *3 FRONT CORNER ULTRASONIC SENSOR RETAINER *4 NO. 3 ENGINE ROOM WIRE ● Non-reusable part - - ILLUSTRATION *A for Sport Package
