Lexus NX: Inspection
Lexus NX Service Manual / Vehicle Interior / Heating / Air Conditioning / Heater Water Pump / Inspection
INSPECTION
PROCEDURE
1. INSPECT HEATER ACCESSORY ASSEMBLY
| *a | Component without harness connected (Heater Accessory Assembly (Heater Water Pump)) |
(a) Check the motor operation.
(1) Apply the positive (+) lead of the auxiliary battery to terminal 2 and the negative (-) lead to terminal 1.
OK:
| Measurement Condition | Specified Condition |
|---|---|
| Auxiliary battery positive (+) → 2 Auxiliary battery negative (-) → 1 | Heater accessory assembly operates smoothly |
NOTICE:
Complete this inspection within 10 seconds if there is no water in the heater water pump assembly.
If the result is not as specified, replace the heater accessory assembly (heater water pump).
READ NEXT:
Installation
INSTALLATION PROCEDURE 1. INSTALL HEATER ACCESSORY ASSEMBLY (a) Connect the heater water inlet hose A with the paint mark (Blue) facing up and attach the clip within the area shown in the illustrat
Components
COMPONENTS ILLUSTRATION *1 AIR CONDITIONING THERMISTOR ASSEMBLY (HUMIDITY SENSOR) *2 NO. 1 FORWARD RECOGNITION COVER *3 NO. 2 FORWARD RECOGNITION COVER *4 PROTECTOR
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Terminals Of Ecu
TERMINALS OF ECU CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (a) Disconnect the I53 certification ECU (smart key ECU assembly) connector. (b) Measure the voltage and resistance according to the value(s) in the table below. Tester Connection Input/Output Wiring Color Terminal Descripti
Removal
REMOVAL PROCEDURE 1. REMOVE MULTI-DISPLAY ASSEMBLY Click here 2. REMOVE DOOR SCUFF PLATE ASSEMBLY LH Click here 3. REMOVE COWL SIDE TRIM BOARD LH Click here 4. REMOVE REAR CONSOLE ARMREST ASSEMBLY Click here 5. REMOVE UPPER REAR CONSOLE PANEL Click here 6. REMOVE UPPER NO. 1 CONSOLE P
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