Lexus NX: Precaution
PRECAUTION
PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable from the negative (-) auxiliary battery terminal, initialize the following systems after the cable is reconnected.
PRECAUTIONS FOR INTUITIVE PARKING ASSIST SYSTEM
(a) Under the following conditions, the detection function may not function properly:
(1) A sensor is covered with foreign matter, such as mud or snow (detection function returns to normal when the sensor is cleaned).
(2) A sensor is frozen (detection function returns to normal when the temperature of the sensor rises).
(3) A hand is blocking a sensor.
HINT:
- In very cold weather where a malfunction display appears, the sensor may not be able to detect obstacles.
- If the malfunction display appears, visually check the sensor first. If the sensor is free of foreign matter but the malfunction display remains, the sensor may be malfunctioning.
(b) The detection range may be affected by the following conditions:
(1) A sensor is covered with foreign matter, such as mud or snow.
(2) The vehicle is in an excessively hot or excessively cold area.
(c) Under the following conditions, a detection error may occur:
(1) Driving on a bumpy road, an unpaved road or in tall grass.
(2) Ultrasonic waves are received from the horn or parking sonar system of another vehicle, a motorcycle engine, or the air brakes of a large vehicle.
(3) It is raining heavily or the sensor is sprayed with water.
(4) The vehicle is tilted at a steep angle.
(5) The vehicle is equipped with a fender pole or a wireless antenna mechanism.
(6) A sensor is covered with foreign matter, such as mud or snow.
(7) The vehicle is moving forward or backward towards high curbs or objects that are perpendicular to the ground.
(8) A sensor is sprayed with high pressure water or steam.
(9) A towing hitch is mounted on the vehicle.
(d) The sensors cannot detect the following objects:
(1) Thin objects, such as wires and ropes
(2) Materials that absorb ultrasonic waves, such as cotton or snow.
(3) Objects with sharp edges
(4) Short objects
(5) Objects that are tall and protrude toward the vehicle above the detection range of the sensors.
(e) Other notices:
(1) The sensors cannot detect objects directly under the bumper. (A sensor may detect low objects and thin poles, and then lose track of them.)
(2) Be aware that the detection range of this system is limited. In certain conditions, some objects may not be detected. Always make sure to check all around the vehicle when driving or parking.
(3) The sensors may not be able to detect obstacles that are too close to the sensors.
(4) The sensors may not be able to detect obstacles if the sensors have been dropped or subjected to a strong impact.
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Parts Location
PARTS LOCATION ILLUSTRATION *A w/ Panoramic View Monitor System *B w/ Parking Assist Monitor System *1 FRONT CORNER ULTRASONIC SENSOR (FR SENSOR) *2 FRONT CENTER ULTRASONIC SENSOR
System Description
SYSTEM DESCRIPTION GENERAL (a) This system uses ultrasonic sensors to detect any obstacles at the corners and the rear of the vehicle. The system then informs the driver of the distance between the se
System Diagram
SYSTEM DIAGRAM Communication Table Sender Receiver Signal Line Main Body ECU (Multiplex Network Body ECU) Clearance Warning ECU Assembly Destination information signal CAN Commun
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Components
COMPONENTS ILLUSTRATION *1 DECK FLOOR BOX LH *2 NO. 3 DECK BOARD SUB-ASSEMBLY *3 REAR DECK FLOOR BOX *4 NEGATIVE AUXILIARY BATTERY TERMINAL N*m (kgf*cm, ft.*lbf): Specified torque - - ILLUSTRATION *A for Front Passenger Side *B for Driver Side *1 FRO
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC AND FREEZE FRAME DATA (a) Turn the power switch off. (b) Connect the Techstream to the DLC3. (c) Turn the power switch on (IG) and the Techstream on. (d) Enter the following menus: Chassis / Electric Parking Brake / Trouble Codes. (e) Check for DTC. Chassis > Electric
