Lexus NX: Removal

Lexus NX Service Manual / Engine & Hybrid System / 2ar-fxe (hybrid / Battery Control) / Water Pump With Motor / 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. DISCONNECT NO. 2 INVERTER COOLING HOSE ASSEMBLY

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5. REMOVE WATER PUMP WITH MOTOR

(a) Disconnect the water pump with motor connector from the water pump with motor.

NOTICE:

Wipe off any coolant from around both the connectors of the wire harness and water pump with motor before disconnecting them, and apply vinyl tape to the disconnected connectors to protect them from coolant.

(b) Slide the hose clamp, and disconnect the No. 2 inverter cooling hose and No. 3 inverter cooling hose from the water pump with motor.

NOTICE:

After disconnecting the water hose, plug the pipe with vinyl tape, etc. to prevent foreign matter from entering the water pump with motor.

HINT:

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

6. REMOVE HV WATER PUMP BRACKET SUB-ASSEMBLY

(a) Remove the 2 bolts and HV water pump bracket sub-assembly from the inverter bracket.

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On-vehicle Inspection

ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (a) Connect the Techstream to the DLC3. (b) Turn the Techstream on. (c) Put the engine in inspection mode (maintenance mode). Click here (d) Start the engine. (e) Warm up the engine. (f) Enter the following menus

Rr Sensor Initialization Incomplete (C1AF4)

DESCRIPTION When it is judged that the rear sensors have not been initialized, the clearance warning ECU assembly stores DTC C1AF4. DTC No. Detection Item DTC Detection Condition Trouble Area C1AF4 Rr Sensor Initialization Incomplete Rear sensor not initialized Initialize rear

Lexus NX: Removal

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Installation

2ar-fxe (intake / Exhaust)

Exhaust Manifold

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On-vehicle Inspection

Rr Sensor Initialization Incomplete (C1AF4)