How to Test a Three-Wire Crankshaft Position Sensor?

What is the flashing frequency of turn signals?

Turn signal flasher frequency is around 60 times per minute. Below are relevant details about turn signals: Introduction to turn signals: Turn signals are important indicator lights activated when motor vehicles turn, alerting surrounding vehicles and pedestrians. The turn signal tubes use xenon lamps, controlled by microcontroller circuits, with alternating left-right flashing in continuous operation. Turn signals employ flashers to achieve light blinking, mainly categorized into resistance wire type, capacitor type, and electronic type. Structural principle of turn signals: The resistance wire type can be further divided into hot wire type and vane type, while the electronic type includes hybrid and fully electronic types. For example, the bounce-type flasher utilizes the thermal effect principle of electric current, using thermal expansion and contraction as the driving force to create sudden movements in the spring vane, thereby connecting and disconnecting contacts to achieve light blinking. Importance of turn signals: Turn signals play a crucial role in actual driving, and proper use can prevent many unnecessary accidents. Generally, turn signals should be activated at least 3 seconds before the intended operation. The faster the vehicle speed, the earlier the turn signal should be activated to allow surrounding vehicles sufficient time to react. After completing the maneuver, promptly turn off the signal to avoid giving the impression of continued operation or forgetting to deactivate it.

14

4

Share

How many seconds should the turn signal be on?

Turn signals should be on for 3 seconds, which corresponds to the turn signal sounding 3 times. This is because the normal flashing frequency of the turn signal relay is approximately 1 Hz, meaning 60 times per minute, or about 1 flash per second. If the frequency suddenly increases, it may indicate a fault in one side of the turn signal or its circuit. Operation method of turn signals: Generally, the turn signal switch is installed on the left side of the steering wheel. The operation can be summarized as "up for right, down for left." Turning the signal up (clockwise) indicates a right turn, while turning it down (counterclockwise) indicates a left turn. However, with advancements in automotive technology, many vehicles now have a "one-touch three-flash" quick function on the hazard light switch. By lightly tapping the lever, the turn signal will flash three times and then automatically turn off. This feature allows drivers to avoid the hassle of manually turning off the signal when changing lanes or overtaking. Penalties for not using turn signals as required: When changing lanes, the turn signal must be on for at least 3 seconds. Failing to use the turn signal as required before changing lanes, turning, or pulling over to the roadside for a temporary stop will result in a 1-point penalty. Not using the signal or using it for less than 3 seconds is considered a violation of the turn signal usage rules. Therefore, the signal must be on for more than 3 seconds.

15

5

Share

What is the reason for the Corolla AC button not lighting up?

The reason why the Corolla AC button does not light up is that the C switch is damaged or has poor contact, so the AC light naturally does not illuminate. Alternatively, the air conditioning fuse may have blown, which is located in the fuse box in the engine compartment. You can check if the fuse has any issues. If the fuse is broken, there will be no power supply, causing the light not to work. If no issues are found, it is best to visit a 4S shop or repair shop for a professional inspection and repair. Air Conditioning: In some car models, to activate the air conditioning cooling, you must first turn on the blower switch and adjust the temperature knob to the cooling position. For automatic air conditioning, you can set a temperature and then press the AUTO button. The automatic air conditioning will adjust the interior temperature accordingly, and the ACC light will then illuminate. Precautions: Under normal cooling conditions, when the car's AC is turned on, you should first activate the internal circulation and then switch to external circulation. This effectively limits the airflow inside the vehicle while also reducing the interior temperature. When starting the car, if you need a cooling effect, turn on the internal circulation first. Once the interior temperature stabilizes, switch to external circulation to allow fresh oxygen to enter, creating a safe environment for the passengers.

1

Share

Which company produces the Fengxing T5?

Fengxing T5 is produced by Dongfeng Fengxing. This vehicle is the first product of Dongfeng Fengxing's 3.0 era, with its biggest highlight being the Futrue-Link3.0 connected car system developed in collaboration with Tencent. The 12-inch floating central control screen offers various smart connectivity applications. Related introductions are as follows: Introduction to the 2022 Fengxing T5: It is a compact 5-door, 5-seat SUV with body dimensions of 4545mm in length, 1825mm in width, and 1750mm in height, a wheelbase of 2720mm, a fuel tank capacity of 45 liters, and front-wheel drive with a 5-speed manual transmission. In terms of power, this vehicle is equipped with a 1.6L naturally aspirated engine, with a maximum power speed of 6000 rpm and a maximum torque speed of 4000 rpm. For suspension, it uses a MacPherson strut independent suspension at the front and a torsion beam non-independent suspension at the rear. Dongfeng Fengxing's brand philosophy: As a responsible national brand, Dongfeng Fengxing solidifies quality while adhering to its original aspirations and fulfilling its mission, always prioritizing consumer needs and striving to ensure users enjoy every journey. Dongfeng Fengxing regards innovation as the foundation of the enterprise, integrating cutting-edge automotive manufacturing technologies.

18

0

Share

Does running out of urea affect the vehicle?

"Running out of urea in a truck not only affects the vehicle's engine but also impacts fuel consumption. When a vehicle stops using urea, the SCR system ceases to function, preventing the catalytic reduction of nitrogen oxides in the exhaust. This results in harmful emissions to the environment and a decrease in engine power. Prolonged absence of urea can lead to partial or complete system damage. During the production of Euro IV engines, manufacturers must input data from the urea sensor into the engine control unit (ECU). If the sensor detects no urea, the ECU will adjust the engine's operation, reducing its power output. This forces the driver to press the accelerator harder, leading to increased fuel consumption. Adding urea helps reduce nitrogen oxides in the exhaust, lowering emissions and making the vehicle more environmentally friendly. Most modern diesel engines use Selective Catalytic Reduction (SCR) technology. The process involves exhaust gases exiting the turbocharger and entering the exhaust pipe, where they pass through a catalytic converter. A urea injector, controlled by the ECU, sprays a urea solution into the exhaust pipe. This solution reacts with nitrogen oxides in the exhaust, converting them into harmless nitrogen and water vapor. A truck can continue to operate without urea, but it should be replenished as soon as possible. Without urea, nitrogen oxide emissions can exceed those of Euro III vehicles. Prolonged operation without urea can cause crystallization, clogging, or heat damage to the urea pump, injector, and related piping."

3

Share

What are the reasons for the Audi A4's start-stop system not working?

Audi A4's automatic start-stop system may not work due to the engine not reaching normal operating temperature; automatic air conditioning not reaching the preset temperature; insufficient battery power, turning the steering wheel after stopping; emergency braking or reversing; cold weather with an outside temperature below 5 degrees Celsius. Principle of Automatic Start-Stop: Automatic start-stop refers to a system that automatically shuts off the engine when the car comes to a temporary stop during driving. When it's time to move forward again, the system automatically restarts the engine. Simply put, it's a system that can control engine shutdown and ignition automatically, abbreviated as STT. How to Use Automatic Start-Stop: While driving, simply press the brake pedal, and the engine will automatically shut off about 2 seconds after the car comes to a complete stop. Keeping the brake pedal pressed will maintain the engine in the off mode. As soon as you release the brake or turn the steering wheel, the engine will automatically restart, allowing you to press the accelerator and start moving immediately, all while remaining in D (Drive) mode. If the car is driving on a steep slope, it's best not to activate the automatic start-stop. Although the start-stop time is brief, using it on a slope can lead to insufficient brake assistance.

20

2

Share

How to Test a Three-Wire Crankshaft Position Sensor?

What is the flashing frequency of turn signals?

How many seconds should the turn signal be on?

What is the reason for the Corolla AC button not lighting up?

Which company produces the Fengxing T5?

Does running out of urea affect the vehicle?

What are the reasons for the Audi A4's start-stop system not working?

Must the outer lane yield to the inner lane when turning?

What is the working principle of the Velite 6 plug-in hybrid system?

Does the Audi A6L have a manual transmission?

Under what circumstances will the turn signal automatically reset and turn off?