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).
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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
SEE MORE:
Back Door Motor Circuit (B2220)
DESCRIPTION This DTC is output when the multiplex network door ECU detects a malfunction in the motor built into the power back door unit assembly set LH or RH. DTC No. Detection Item DTC Detection Condition Trouble Area B2220 Back Door Motor Circuit Motor malfunction detected in po
Diagnosis System
DIAGNOSIS SYSTEM CHECK DLC3 (a) Check the DLC3. Click here INSPECT AUXILIARY BATTERY VOLTAGE (a) Measure the auxiliary battery voltage. Standard voltage: 11 to 14 V (power switch off) If the voltage is below 11 V, recharge or replace the auxiliary battery.
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