Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Inspection

Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual / Vehicle Interior / Heating / Air Conditioning / Compressor / Inspection

INSPECTION

PROCEDURE

1. INSPECT COOLER COMPRESSOR ASSEMBLY (A/C LOCK SENSOR)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 (SSR+) - 2 (SSR-)

20°C (68°F)

160 to 320 Ω

If the resistance is not as specified, replace the cooler compressor assembly.

*a

Component without harness connected

(Cooler Compressor Assembly (A/C Lock Sensor))

2. INSPECT COOLER COMPRESSOR ASSEMBLY (COMPRESSOR SOLENOID)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 (SOL-) - 2 (SOL+)

25°C (77°F)

10.1 to 11.1 Ω

If the resistance is not as specified, replace the cooler compressor assembly.

*a

Component without harness connected

(Cooler Compressor Assembly (Compressor Solenoid))

3. INSPECT COOLER COMPRESSOR ASSEMBLY (MAGNETIC CLUTCH ASSEMBLY)

*a

Component without harness connected

(Cooler Compressor Assembly (Magnetic Clutch Assembly))

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

3 (MG+) - Body ground

20°C (68°F)

3.8 to 4.2 Ω

If the resistance is not as specified, replace the magnetic clutch assembly.

(b) Connect a positive (+) lead from the battery to terminal 3 (MG+) and check that the following occurs: 1) the magnetic clutch assembly operating sound can be heard, and 2) the magnetic clutch hub and rotor lock.

  • If the result is not as specified, replace the magnetic clutch assembly
    Disassembly
    DISASSEMBLY PROCEDURE 1. REMOVE COOLER COMPRESSOR BRACKET (a) Disengage the clamp. (b) Remove the screw and cooler compressor bracket. 2. REMOVE MAGNET CLUTCH ASSEMBLY (a) Secure the ...

    Installation
    INSTALLATION PROCEDURE 1. ADJUST COMPRESSOR OIL (a) When replacing the compressor and magnetic clutch with a new one: (1) Remove the drain bolt (seal washer) from a new compressor and magnetic clut ...

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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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