1. Úvod
This manual provides detailed instructions for the proper use and maintenance of your Dollarfix EF18 OBD2 Scanner. Please read this manual thoroughly before operating the device to ensure correct usage and to prevent damage.
The Dollarfix EF18 is a diagnostic tool designed to read and clear engine fault codes, display live data, and perform various diagnostic tests on OBDII/EOBD/CAN compliant vehicles manufactured after 1996.
2. Konec produktuview
2.1 Součásti zařízení
The Dollarfix EF18 OBD2 Scanner features a compact design with a clear LCD screen and intuitive controls.

Obrázek 1: Přední view of the Dollarfix EF18 OBD2 Scanner, showing the display screen, navigation buttons (up, down, OK, back), and the OBD2 connector cable.
2.2 Klíčové vlastnosti
- Plné funkce OBD2: Reads and clears Diagnostic Trouble Codes (DTCs), turns off the Check Engine Light (MIL).
- Živý datový stream: Displays real-time vehicle sensor data in text and graph format.
- Data zmrazeného snímku: Captures a snapshot of vehicle conditions when an emission-related fault occurs.
- Stav připravenosti I/M: Checks the operational status of the emission system monitors.
- Test senzoru O2: Načítá a viewVýsledky testu monitoru kyslíkového senzoru.
- Test systému EVAP: Zahájí test těsnosti systému EVAP vozidla.
- Informace o vozidle: Načte VIN, CIN a CVN.
- Baterie Voltage Monitor: Displays real-time 12V battery voltage.
- Podpora více jazyků: Supports eight languages.
- Provoz Plug-and-Play: No external power or batteries required for basic functions.

Obrázek 2: The Dollarfix EF18 scanner screen showing icons for various functions including Read Code, Clear Code, Live Data, I/M Readiness, Vehicle Info, Freeze Frame, EVAP Monitor Test, O2 Monitor Test, and On-board Monitor Test.
3. Nastavení
The Dollarfix EF18 scanner is designed for plug-and-play operation. Follow these steps to begin using the device:
- Vyhledejte port OBD2: The OBD2 port is typically located under the dashboard on the driver's side. Refer to your vehicle's owner's manual for the exact location.
- Připojení skeneru: Plug the EF18 scanner's OBD2 connector into your vehicle's OBD2 port.
- Zapněte zapalování vozidla: Turn the vehicle's ignition to the "ON" position (engine can be off or running, depending on the test). The scanner will power on automatically.
- Zahájení diagnostiky: The scanner will automatically link to the vehicle's computer. Once linked, you can navigate the menu to select desired diagnostic functions.

Obrázek 3: Visual guide showing three steps: 1. Plug into OBD2 Port, 2. Turn on the car (ignition), 3. Start diagnosis by pressing the start engine button.
4. Návod k obsluze
Use the navigation buttons (Up, Down, OK, Back) on the device to select and confirm menu options.
4.1 Čtení a mazání kódů
- From the main menu, select "OBDII/EOBD".
- Choose "Read Codes" to view current, pending, or historic Diagnostic Trouble Codes (DTCs).
- To clear codes, select "Clear Codes". Confirm the action when prompted. Note: Clearing codes will also turn off the Check Engine Light (MIL) and erase freeze frame data. Ensure you have recorded any necessary information before clearing codes.
4.2 Živý datový tok
This function displays real-time data from the vehicle's sensors.
- From the "OBDII/EOBD" menu, select "Live Data".
- Můžete view data in text format or graphical format for selected parameters.
4.3 Stav připravenosti I/M
Checks if the various emission-related systems on the vehicle are operating correctly and are ready for inspection and maintenance testing.
- From the "OBDII/EOBD" menu, select "I/M Readiness".
- The screen will display the status of various monitors (e.g., Misfire Monitor, Fuel System Monitor, O2 Sensor Monitor). "OK" indicates the monitor has completed its test, "INC" indicates incomplete, and "N/A" indicates not applicable.
4.4 Voltage Monitor
Allows for a quick check of the vehicle's 12V battery voltage.
- V hlavní nabídce vyberte možnost „Baterie“.
- Aktuální objem baterietagNa obrazovce se zobrazí e.

Obrázek 4: The Dollarfix EF18 scanner connected to a vehicle, illustrating its capability to perform Oxygen Sensor Test, EVAP System Test, and I/M Ready State checks.

Obrázek 5: The Dollarfix EF18 scanner screen showing a DTC Lookup function (P0006), alongside icons representing DTC Reading & Clearing, Live Data Monitor, Freeze Frame, Battery Voltage Display, and Read Vehicle Information.
5. Údržba
- Čištění: K čištění vnější strany skeneru používejte měkký, suchý hadřík. Nepoužívejte abrazivní čisticí prostředky ani rozpouštědla.
- Skladování: Zařízení skladujte v suchém a chladném prostředí, mimo dosah přímého slunečního záření a extrémních teplot.
- Péče o kabely: Avoid bending or twisting the OBD2 cable excessively. Ensure the connector is clean and free of debris before plugging it into the vehicle.
6. Řešení problémů
- Skener se nezapne:
- Ensure the OBD2 connector is securely plugged into the vehicle's port.
- Zkontrolujte, zda je zapalování vozidla v poloze „ON“.
- Zkontrolujte pojistku vozidla pro port OBD2 (viz návod k obsluze vozidla).
- Linking Error / Communication Failure:
- Confirm the vehicle is OBDII compliant (most vehicles after 1996).
- Ujistěte se, že je zapalování v poloze „ZAPNUTO“ a motor je vypnutý nebo běží, jak to vyžaduje test.
- Zkontrolujte, zda nejsou uvolněná spojení.
- Zkuste se připojit k jinému vozidlu kompatibilnímu s OBDII, abyste vyloučili poruchu skeneru.
- "DTCs Not Found" Message:
- This indicates that no Diagnostic Trouble Codes are currently stored in the vehicle's computer.
7. Specifikace
| Funkce | Detail |
|---|---|
| Model | EF18 |
| Značka | Dollarfix |
| Kompatibilita | OBDII/EOBD/CAN compliant vehicles (most after 1996) |
| Podporované protokoly | ISO14230-4 KWP, ISO15765-4 CAN, ISO9141-2, J1850 VPW, SAE J1850 PWM |
| Zobrazit | Podsvícený LCD displej |
| Zdroj napájení | Vehicle OBD2 port (powered by vehicle's 12V battery, no internal battery required for operation) |
| Rozměry | 6.69 x 2.76 x 2.76 palce (17.0 x 7.0 x 7.0 cm) |
| Hmotnost | 260 g |
| Podporované jazyky | 8 jazyků |

Obrázek 6: The Dollarfix EF18 scanner shown with its compact size, clear backlit LCD screen, simple 4-button operation, and flags representing its 8-language support. It also emphasizes compatibility with vehicles since 1996.
8. Záruka a podpora
For warranty information and technical support, please refer to the contact details provided with your product packaging or visit the official Dollarfix webmísto.
Výrobce: Dollarfix
ASIN: B0CWLDMC1P
UPC: 768297280023