Body position sensor Prado 120

Road safety depends on many factors, including body position. The pneumatic element helps to keep the car at a certain height in relation to the road.

This elastic component is the basis of the suspension. The roadway is illuminated with xenon lamps. If the beam angle of the headlights deviates at night, there is a risk of an accident.

Body Position Sensors: Quantity and Location

Modern cars are equipped with body position indicators. This function is designated as a service function, it does not play a big role in the control of the machine.

Air suspension vehicles have 4 sensors, one per wheel. The height is adjusted automatically. There is a balance between the mass of cargo, the number of passengers and ground clearance.

To improve the car's handling and patency on the tracks, manual setting of operating modes is allowed. On vehicles without pneumatics, only 1 device is installed. It is located next to the right rear wheel.

Some elements of the system are located at the bottom of the machine. Such sensors quickly become dirty and wear out.

The reasons for failures are:

• loss of electrical conductivity of the tracks;
• spontaneous destruction of a metal part as a result of corrosion;
• sour nuts on threaded connections and glue them to the bolts;
• failure of the entire system.

Toyota Land Cruiser Prado 120 is surrounded by plastic lining and all kinds of wheel arch extensions. Among other things, there are also indicators.

How to set up the Land Cruiser 120 Body Height Position Sensor?

The ride height sensor, mounted on the vehicle's frame, collects data from the body roll sensor. As a result, when properly adjusted, the headlights rise or fall depending on the time of day.

Vehicle ride height devices are called steering angle indicators. The movement of the wheel spring is sensed by the wishbones (front and rear), transmitted to the Prado sensors, where the data is converted into a steering angle.

When setting up, the guideline is the use of static electric and magnetic fields. The device provides a pulsed signal and readings proportional to the angle of twist.

Sensor repair

Measuring instruments are needed as a unit of the control system. Therefore, the repair of the body position sensor on the Prado 120 is carried out on specialized equipment. Quality is assessed through end-of-service diagnostic measurements.

Only after a thorough check can one judge the maintainability of external and internal drives. Acoustic, light and electrical parameters are checked. Specialists issue guarantees for the operation of devices.

Replacing body height sensors Prado

Sensors are changed when the following malfunctions occur:

1. Driving through pits and potholes responds with sudden and strong shocks transmitted to the body. Rocking is observed after a long period of inactivity without starting the engine.
2. Anthers have fallen into disrepair.
3. Difference shock absorbers appeared on the rear axle.
4. The safety valve in solenoid version has not been tested.
5. The left front shock absorber cannot be adjusted using the active test, indicating a wiring fault in the form of an open or short circuit.
6. The left body height indicator mount was broken.
7. sensor oxidation.
8. Traction is not adjustable.
9. Diagnostics shows that the rear wheel shock absorbers are not working.

Repair stages:

• It is necessary to replace the Prado 120 body position sensor and the rear shock absorbers with serviceable parts with new bushings after unscrewing the nut.
• Change the left body position indicator.

Going on a journey, you need to check all the sensors, incl. Suspension height Prado 120.

How to adjust suspension height

The pneumatic element helps to keep the car body at a certain level in relation to the road surface. This elastic component is the basis of the suspension. To adjust the Prado 120 body position sensor, you must perform a cycle of sequential actions:

1. Check the LDS level in the reservoir.
2. Measure the wheel diameter.
3. Measure the distances from specially arranged areas at the bottom of the car to the ground.

After entering the indicated measurements into the electronic system, the calculation of the 2nd number is carried out automatically. Then a check is made.

Qualified specialists understand that it is important to adjust the height sensors of the Prado 120. This must be approached responsibly.

Sometimes when the vehicle is stopped while the engine is running, the vehicle will sway. You need to look for the cause in the body height sensor circuit of the Prado 120 car. This is one of the features of tuning. When operating a vehicle, it is useful to know a few nuances:

• When preparing to park the car on an uneven area with curbs, snowdrifts or pits, it is necessary to turn off the automation (press the "OFF" button - the indicator will light up). Sometimes it is necessary to repeat the procedure.

• In the case of towing the car, the average height of the body position is set, the automation is turned off.

• On rough roads it is better to drive in the "HI" mode with the electronics turned off.

Car manufacturers advise turning off the pneumatic control system when the temperature drops to -30 ° C.

If the operation of the vehicle in extremely cold conditions is unavoidable, you should set the average height of the body and turn off the machine.

Driving a Toyota Land Cruiser Prado 120 is impossible to imagine without electronics. The incoming signals in the form of voltage, frequency and other parameters are converted into a digital code and fed to the control unit. The program, according to information, includes the necessary mechanisms.