Lexus NX: Diagnosis System
DIAGNOSIS SYSTEM
CHECK DLC3
(a) Check the DLC3.
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INSPECT AUXILIARY BATTERY VOLTAGE
(a) Measure the auxiliary battery voltage with the power switch off.
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the auxiliary battery.
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DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. Th
DESCRIPTION When the rear window defogger switch (mirror heater switch) on the air conditioning control assembly is pressed, the operation signal is transmitted to the air conditioning amplifier assem
DESCRIPTION When the outer mirror switch assembly (mirror retract switch) is operated, a retract/return signal is received by the main body ECU (multiplex network body ECU). The main body ECU (multipl
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ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT COOLING FAN SYSTEM (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Electric Cooling Fan. Powertrain > Engine and
The following may indicate that
your vehicle is overheating.
The needle of the engine coolant
temperature gauge
enters the red zone, or a loss of
hybrid system power is experienced.
(For example, the vehicle
speed does not increase.)
"Engine Coolant Temp High" or
"Hybrid System Ov
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