Lexus NX manuals

Lexus NX: Sub Radiator

Lexus NX Service Manual / Engine & Hybrid System / 2ar-fxe (hybrid / Battery Control) / Sub Radiator

Removal

REMOVAL

PROCEDURE

1. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY

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2. DRAIN COOLANT (for Inverter Coolant)

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3. REMOVE UPPER RADIATOR SUPPORT SUB-ASSEMBLY

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4. REMOVE NO. 2 FAN SHROUD

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5. REMOVE RADIATOR ASSEMBLY (for Inverter Coolant)

(a) Slide the hose clamp, and disconnect the No. 5 inverter cooling hose and No. 2 inverter cooling hose assembly from the radiator assembly (for inverter coolant).

NOTICE:

  • After disconnecting the water hose, plug the water hose and the pipe of the radiator assembly (for inverter coolant) with vinyl tape, etc. to prevent foreign matter from entering the cooling path.
  • Do not apply excessive force to the water hose.

HINT:

Prepare a drain pan or cloth in case the coolant leaks.

(b) Remove the 4 bolts and radiator assembly (for inverter coolant) from the cooler condenser assembly.

Installation

INSTALLATION

PROCEDURE

1. INSTALL RADIATOR ASSEMBLY (for Inverter Coolant)

(a) Install the radiator assembly (for inverter coolant) to the cooler condenser assembly with the 4 bolts.

Torque:

9.0 N·m {92 kgf·cm, 80 in·lbf}

*a

Matchmark

*b

Positioning Rib

*c

135°

*d

45°

*e

Top

*f

Front of the Vehicle

(b) Referring to the illustration, connect the No. 5 inverter cooling hose, No. 2 inverter cooling hose assembly and clamp to the radiator assembly (for inverter coolant), and secure with the hose clamp.

NOTICE:

  • Until immediately before connecting the water hose, plug the water hose and pipe with vinyl tape, etc. to prevent foreign matter from entering the cooling path.
  • Insert the water hose up to the tank surface of the radiator assembly (for inverter coolant).
  • Align the matchmark on the water hose with the positioning rib on the radiator assembly (for inverter coolant).

2. INSTALL NO. 2 FAN SHROUD

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3. INSTALL UPPER RADIATOR SUPPORT SUB-ASSEMBLY

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4. ADD COOLANT (for Inverter Coolant)

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5. INSPECT FOR COOLANT LEAK (for Inverter Coolant)

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6. INSTALL NO. 1 ENGINE UNDER COVER ASSEMBLY

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READ NEXT:

 Water Pump With Motor

 Components

COMPONENTS ILLUSTRATION *1 HV WATER PUMP BRACKET SUB-ASSEMBLY *2 NO. 1 ENGINE UNDER COVER ASSEMBLY *3 NO. 2 INVERTER COOLING HOSE ASSEMBLY *4 WATER PUMP WITH MOTOR *5 NO. 2 I

 Removal

REMOVAL PROCEDURE 1. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY Click here 2. DRAIN COOLANT (for Inverter Coolant) Click here 3. REMOVE UPPER RADIATOR SUPPORT SUB-ASSEMBLY Click here 4. DISCONNE

SEE MORE:

 Generator Position Sensor Circuit Range / Performance (P0A4C-518,P0A4C-811)

DTC SUMMARY MALFUNCTION DESCRIPTION These DTCs indicate that a large current flowed in the inverter for the generator. The cause of this malfunction may be one of the following: Area Main Malfunction Description Step Inverter low-voltage circuit The connectors are not connected properly

 Inspection

INSPECTION PROCEDURE 1. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY *a Component without harness connected (Throttle with Motor Body Assembly) (a) Check that the throttle valve opens and closes smoothly. (b) Check that the there is no sludge accumulating around the throttle with motor body as

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