1. Ifihan
The KONNWEI KW590 is a universal OBD2 diagnostic scanner designed to assist vehicle owners and technicians in quickly identifying and resolving engine-related issues. This device is compatible with all 1996 and newer OBDII compliant vehicles, including those from the United States, Europe, and Asia. It provides essential diagnostic functions such as reading and clearing fault codes, viewing live data, and performing I/M readiness tests.
This manual provides detailed instructions on how to set up, operate, maintain, and troubleshoot your KW590 scanner to ensure optimal performance and accurate diagnostics.

Figure 1.1: KONNWEI KW590 OBD2 Scanner with its diagnostic cable, USB cable, and a display of compatible car brands.
2. Alaye Aabo pataki
- Ṣe idanwo ọkọ ayọkẹlẹ nigbagbogbo ni agbegbe ailewu.
- Wear eye protection and safety clothing when testing.
- Jeki aṣọ, irun, ọwọ, awọn irinṣẹ, ohun elo idanwo, ati bẹbẹ lọ, kuro ni gbogbo gbigbe tabi awọn ẹya ẹrọ ti o gbona.
- Ṣiṣẹ ọkọ ni agbegbe iṣẹ ti o ni afẹfẹ daradara; eefin ategun ni o wa loro.
- Fi awọn bulọọki si iwaju awọn kẹkẹ awakọ ati maṣe lọ kuro ni ọkọ lairi lakoko ṣiṣe awọn idanwo.
- Be extremely cautious when working around the ignition coil, distributor cap, ignition wires, and spark plugs. These components create hazardous voltages nigbati awọn engine nṣiṣẹ.
- The KW590 scanner operates only with a 12V vehicle battery. Do not connect it to other voltage awọn orisun.
- Ensure the vehicle's ignition is OFF before connecting or disconnecting the scanner.
- This device is designed for gasoline-powered 12V vehicles only. It is not compatible with diesel vehicles.
3. Package Awọn akoonu
Nigbati o ba ṣii package, jọwọ rii daju pe gbogbo awọn nkan wọnyi wa pẹlu:
- 1 x KONNWEI KW590 OBDII/EOBD Scanner Unit
- 1 x OBDII Diagnostic Cable (16-pin)
- 1 x Okun USB
- 1 x Afọwọṣe olumulo (Iwe-ipamọ yii)

Figure 3.1: Contents of the KONNWEI KW590 package, showing the scanner, OBDII cable, USB cable, and user manual.
4. Ọja Ipariview
The KW590 scanner features a compact design with an easy-to-read backlit LCD screen and intuitive button controls. It is powered directly from the vehicle's OBDII port, eliminating the need for external batteries or chargers during operation.

olusin 4.1: Iwaju view of the KW590 scanner, highlighting the LCD display, ESC, ENTER, and navigation buttons.
4.1 Device irinše
- Ifihan LCD: 2.8-inch backlit screen for displaying diagnostic information.
- Bọtini ESC: Ti jade kuro ninu akojọ aṣayan lọwọlọwọ tabi fagile iṣẹ kan.
- Tẹ Bọtini: Jẹrisi yiyan tabi tẹ akojọ aṣayan kan sii.
- Àwọn bọ́tìnì ọfà òkè/ìsàlẹ̀: Navigates through menu options and data.
- OBDII Connector: 16-pin connector for linking to the vehicle's Data Link Connector (DLC).
- Ibudo USB: For connecting to a computer for software updates and data printing.

olusin 4.2: Apa view of the KW590 scanner, showing the mini-USB port for PC connection.
5. Eto ati Asopọ
Follow these steps to connect the KW590 scanner to your vehicle:
- Wa asopọ asopọ asopọ data pin 16 (DLC) ti ọkọ ayọkẹlẹ naa. Eyi maa n wa labẹ dasibodu ni ẹgbẹ awakọ naa.
- Rii daju pe ina ọkọ ayọkẹlẹ wa ni ipo PA.
- Plug the OBDII diagnostic cable into the vehicle's DLC. Ensure a secure connection.
- Once connected, turn the vehicle's ignition to the ON position (engine can be off or running, depending on the test). The scanner will automatically power on and display the main menu.

Figure 5.1: The KW590 scanner connected to a vehicle's OBDII port, ready for operation.
6. Awọn ilana Iṣiṣẹ
The KW590 scanner offers various diagnostic functions accessible through its main menu. Use the Up/Down arrow buttons to navigate and the ENTER button to select.

Figure 6.1: The main Diagnostic Menu of the KW590 scanner.
6.1 Awọn iṣẹ bọtini
- Ka Awọn koodu: Retrieves Diagnostic Trouble Codes (DTCs) from the vehicle's computer. This includes generic (P0, P2, P3, U0) and manufacturer-specific (P1, P3, U1) codes. The scanner displays the DTC definitions directly on the screen.
- Awọn koodu Paarẹ: Clears DTCs from the vehicle's computer and turns off the Check Engine Light (MIL). This also resets monitors. Iṣọra: Clearing codes without addressing the underlying issue will likely result in the codes reappearing.
- Data Live: Displays real-time data stream from the vehicle's sensors, such as engine RPM, vehicle speed, O2 sensor readings, etc.
- View Di data fireemu: Shows a snapshot of the vehicle's operating conditions at the moment an emission-related fault occurred.
- Ipo imurasilẹ I/M: Checks the readiness of the emission-related monitoring systems. This is useful for determining if the vehicle is ready for an emissions test.
- Idanwo sensọ O2: Gba awọn abajade idanwo atẹle sensọ O2 fun awọn idanwo ti o pari laipẹ julọ lati kọnputa inu ọkọ.
- Idanwo Lori-Board: Gba awọn abajade idanwo pada fun awọn paati agbara ti o jọmọ itujade ati awọn eto ti ko ṣe abojuto nigbagbogbo.
- Vehicle Information (VIN, CIN, CVN): Retrieves the Vehicle Identification Number, Calibration ID, and Calibration Verification Number.
- DTC Lookup Library: Built-in library to look up definitions of DTCs.

Olusin 6.2: Example of a fault code (P0209) displayed on the KW590 screen with its description.
6.2 Awọn imọlẹ Atọka
The scanner features indicator lights to provide quick status feedback:
- Green Green: Indicates that the engine system is running normally.
- LED pupa: Indicates there are one or more problems with the vehicle's system.
- LED ofeefee: Indicates there is a pending problem or a system that cannot run diagnostic testing.
7. Imudojuiwọn Software
The KW590 scanner supports lifetime free software updates via the internet. This ensures you have the latest bug fixes and newly added parameters. To update the software:
- Download the update tool from the official KONNWEI website (refer to the website address provided in the original packaging or product documentation).
- Install the update tool on your computer.
- Connect the KW590 scanner to your computer using the provided USB cable.
- Launch the update tool and follow the on-screen instructions to download and install the latest firmware onto your device.
8. Data Printing
You can print diagnostic data and reports from your KW590 scanner using a computer. This feature allows you to keep records or share them with a mechanic.
- Ensure the KW590 scanner is connected to your computer via the USB cable.
- Open the KONNWEI update/data management software on your computer.
- Navigate to the data review or print function within the software.
- Select the data you wish to print and follow the software's instructions to generate and print the report.
9. Laasigbotitusita
This section addresses common issues you might encounter while using the KW590 scanner.
| Isoro | Owun to le Fa | Ojutu |
|---|---|---|
| Scanner ko ni agbara lori. |
|
|
| Ifiranṣẹ "LINK ÀṢÀṢÀ" han. |
|
|
| Kò le pa àwọn kódì rẹ́. |
|
|
10. Awọn pato
| Ifihan: | 2.8-inch Backlit LCD |
| Awọn ọna Voltage: | 12V DC (from vehicle OBDII port) |
| Awọn Ilana ti o ni atilẹyin: | SAE J1850 PWM, SAE J1850 VPW, ISO9141-2, ISO14230-4 KWP (5 Baud Init, Fast Init), ISO15765-4 CAN (11bit ID, 29bit ID, 250 Kbaud, 500 Kbaud) |
| Iwọn Iṣiṣẹ: | 0 si 60°C (32 si 140°F) |
| Ibi ipamọ otutu: | -20 si 70°C (-4 si 158°F) |
| Awọn iwọn: | Approximately 12.5 cm (Length) x 7 cm (Width) x 2 cm (Thickness) |
| Ìwúwo: | Lai so ni pato |
| Awọn ede ti o ni atilẹyin: | English, Spanish, French, German, Dutch |

Figure 10.1: Physical dimensions of the KW590 scanner.
11. Atilẹyin ọja ati Support
11.1 atilẹyin ọja Alaye
The KONNWEI KW590 scanner comes with a 12-month quality warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accident, unauthorized modification, or improper installation.
Additionally, a 30-day return policy is offered for any reason, allowing customers to return the product within 30 days of purchase if unsatisfied.
11.2 Imọ Support
For technical assistance, troubleshooting guidance, or warranty claims, please contact KONNWEI customer support. Refer to the contact information provided in your product packaging or on the official KONNWEI webojula.
Regular software updates are available free of charge for the lifetime of the product to ensure compatibility with new vehicle models and to provide the latest diagnostic features. Visit the official KONNWEI website for software downloads and support resources.





