Lexus NX: Diagnosis System
Lexus NX Service Manual / Engine & Hybrid System / Cruise Control / Front Radar Sensor System / Diagnosis System
DIAGNOSIS SYSTEM
DIAGNOSIS FUNCTION
(a) If a malfunction is detected in the millimeter wave radar sensor assembly, the millimeter wave radar sensor assembly stores DTCs without directly informing the driver, and sends malfunction signals to the systems that use the millimeter wave radar sensor assembly.
Those systems then notify the driver.
HINT:
Refer to "HOW TO PROCEED WITH TROUBLESHOOTING" when troubleshooting for the Pre-collision System.
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Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Front Radar Sensor /
Freeze Frame Data
FREEZE FRAME DATA DESCRIPTION (a) Whenever a front radar sensor system DTC is stored, the millimeter wave radar sensor assembly stores the current vehicle state as Freeze Frame Data. CHECK FREEZE FRAM
Fail-safe Chart
FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) If a malfunction is detected in the front radar sensor system, a message is displayed on the multi-information display and systems related to the malfunction are
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Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION When troubleshooting OBD II (On-Board Diagnostics) vehicles, the Techstream (complying with SAE J1978) must be connected to the DLC3 (Data Link Connector 3) of the vehicle. Various data in the vehicle's ECM (Engine Control Module) can be then read. OBD II regulations re
Engine Coolant Temperature / Intake Air Temperature Correlation (P011B)
DESCRIPTION The engine has two temperature sensors, an engine coolant temperature sensor and an intake air temperature sensor, to detect temperature while the engine is operating. A thermistor, whose resistance value varies according to the temperature, is built into each sensor. When the temperatur
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