The car diagnostic instrument is a kind of auto repair work that is easier, more convenient, and simpler.The function of the car fault diagnostic instrument is rich, including reading fault code, data reading, anti -theft matching, special functions, etc.The use of a car fault diagnosis detector can quickly read the fault code and data flow, and can also perform action testing the execution element. Lets take a closer look at the relevant knowledge of the car diagnostic instrument in detail.
Introduction to the car diagnostic instrument
The car diagnostic instrument is a professional instrument specifically targeted at car testing. It can detect the performance of the vehicle in real time and detect the vehicle failure. The car diagnostic instrument refers to determining that the car is determined by the condition that the car is not resolved (or only unloaded individual parts) to determine the car.Technical situation, check the check tools for faults and reasons.Including the detection and diagnosis of car engines, detection and diagnosis of automotive chassis, detection and diagnosis of automotive bodies and accessories, and detection of car exhaust pollutants and noise detection.Car diagnostic instrument is a must -have tool for detecting vehicles.
The car diagnostic instrument is divided into 2 categories:
1. Car Xuntong car detector for personal car owners: It is mainly designed for personal car owners, with integrated technology, small appearance and many compact functions. Car owners can check the detection data in real time through their mobile phones.helper.
2. Car testing instrument for professionals: It mainly faces the design of professionals and car repair plants, and has multiple diagnostic functions.
The function of the car diagnosticiac
1. Read the fault code: Read the detailed information of the fault code and the fault code stored in the engine system, and give the cause of the fault code for the cause of the fault code and the maintenance guidance information.
2. Clear the fault code: clear all the fault codes in the system.
3. Read dynamic data stream: read all operating parameters related to the ECU system.
4. Frozen frame data: When a failure related to emissions occurs, the ECU will set the fault code, and it will also record the running state information of the vehicle at the moment of the fault to confirm the fault. The information of these records is called the frozen frame.
5. Sensor test: This service is for access to the results of the oxygen sensor monitoring test.
6. Read vehicle information: read the information of the vehicle, such as vehicle recognition number (VIN), Calid (CALID), and calibration verification number (CVN).
How to use the car diagnostic instrument
1. Put up
(1) Select the corresponding test card.
(2) The main line is connected to the host, and the power cord at the other end is connected to the car cigarette lighter or the battery through the double pliers line to power the host.
2. Display screen brightness
After the host is powered on, open the instrument and ring it twice. At this time, use [↑] or [↓] key to regulate the brightness of the display, and you must not adjust it after entering the menu.
3. Select test joint
(1) After the host is powered on, enter the diagnostic system. After pressing the [Confirm] key, display the A01 card tested car series,
(2) Select the car series that needs to be tested, and press the [confirmation] key screen to display the car test joint type.
(3) Use [↑] or [↓] key to read the content in the drawing diagram, and select the appropriate test joint according to the prompts.One end of the selected test joint is connected to the main line of the test, and the other end is connected with the diagnostic socket on the car.After selecting the test card and the test joint, you can perform the test operation.
Test operations are usually divided into two parts: reading system data flow and test fault code.Reading the data stream, you can get the sensor parameters of the car to understand the running status of the car.Test the fault code, you can read the car failure code and diagnose the car failure.The following introduces the operation method of test fault code.
4. Test fault code
(1) When selecting the test joint, if you select the "semi -circular diagnostic holder", press the [confirm] key to display the test function.It can be seen from the menu that there are 6 test functions of test fault code, re -reviewing the failure code, checking the fault code, clearing the failure code, clearing the SRS failure code, and printing test results.
(2) Select the function of "Test the Fault Code", press the [Confirm] key, the screen displays the two items of "Auto Test All Systems" and "Select System Test".
(3) Select "Auto Test All Systems" and press the [Confirm] key.At this time, the decoder automatically detects the engine (ENG), automatic transmission (AT), braking anti -dead system (ABS), airbag (SRS) and fixed speed system (CC) of the inspected car, and automatically displayTest results.Use [↑] [↓] key and [confirmation] key to read the failure code and content of each system.
(4) Select "Select System Test" and press the [Confirm] key to display the 5 systems that can be tested.
5. Revisiting the measured fault code
(1) Using the "Re -Re -Re -Discover Character Code" function, you can re -check the content and failure analysis of the fault code read during the measured operation.When operating, select the "Reconstruction of the Testing Failure Code", press the [Confirm] key, the screen shows the two options: "Testing the System List" and "Select System Reconstruction".
(2) Select the "Re -Review of the Test System", press the [Confirm] key, and automatically display the test results of the test system.
(3) Select "Select the System Reconstruction", press the [Confirm] key, and the screen shows the 5 optional 5 systems.Use [↑] [↓] key and [confirmation] key, you can read the failure code and fault code content of each system.
6. Check the fault code
(1) Using the "Review of the Failure Code" function, you can check all the fault code of the electronic control system or check the read -readable fault code.When operating, select "Check the fault code", press the [confirm] key, and the screen shows 5 systems.
(2) After selecting a system, the screen shows two options: "Check in the order in order of the fault code" and "input failure code", as shown in Figure 2-94, use the [↑] [↓] key and [confirmation]Select one of them.
(3) If you select "Check in the order of the fault code", press the [Confirm] key, the screen may show the content of the fault code 11.Press the [→] key to view the fault code content of the next sequence number.
(4) If you select "Enter the Failure Code", press the [Confirm] key, and the screen shows "Please enter the fault code".Press the 0 ~ 9 number key on the host, you can enter the fault code, press the [→] key to change the number, and press the [confirm] key to find the fault content corresponding to the fault code and guide the car repair.
7. Clear the fault code
Use the "Clear Failure Code" to automatically remove the fault code or artificially clear the fault code.Before clearing the fault code, all the fault codes should be read again.After clearing the fault code, read all the fault code again to check whether there are still faults.
(1) Select the "Clear Failure Code", press the [Confirm] key, the screen display the code clearing method, and according to the screen prompts to remove the fault code.
(2) The removal of some system fault codes should be operated according to special prompts when there are special prompts. For example, the failure code of the Toyota Motors (SRS) should be cleared, and there is a special prompt.
(3) Sometimes there are more than one method of removing the fault code, and you need to choose according to the situation of the measured model.
8. Print test results
(1) Using the "Print Test Results", the test results can be printed out by connecting miniature printers.When operating, connect the micro printer, select the "Print Test Result", press the [Confirm] key, and the screen shows 5 systems, as shown in Figure 2-90.
(2) Use the [↑] [↓] key to select the system you want to print, and press the [Confirm] key to print the test results.

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