1. Ro-ràdh
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. Toradh thallview
2.1 Co-phàirtean inneal
The Dollarfix EF18 OBD2 Scanner features a compact design with a clear LCD screen and intuitive controls.

Dealbh 1: Aghaidh view of the Dollarfix EF18 OBD2 Scanner, showing the display screen, navigation buttons (up, down, OK, back), and the OBD2 connector cable.
2.2 Prìomh fheartan
- Full OBD2 Functions: Reads and clears Diagnostic Trouble Codes (DTCs), turns off the Check Engine Light (MIL).
- Sruth Dàta Beò: Displays real-time vehicle sensor data in text and graph format.
- Reothadh an dàta frèam: Captures a snapshot of vehicle conditions when an emission-related fault occurs.
- Inbhe Deisealachd I/M: Checks the operational status of the emission system monitors.
- Deuchainn Mothachaidh O2: Retrieves and views O2 sensor monitor test results.
- Deuchainn Siostam EVAP: Initiates a leak test for the vehicle's EVAP system.
- Fiosrachadh carbaid: Retrieves VIN, CIN, and CVN.
- Bataraidh Voltage Monitor: Displays real-time 12V battery voltage.
- Taic ioma-chànan: Supports eight languages.
- Gnìomh Plug-and-Play: No external power or batteries required for basic functions.

Dealbh 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. Suidhich
The Dollarfix EF18 scanner is designed for plug-and-play operation. Follow these steps to begin using the device:
- Lorg am 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.
- Ceangail an sganair: Plug the EF18 scanner's OBD2 connector into your vehicle's OBD2 port.
- Turn on Vehicle Ignition: 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.
- Tòisich air Breithneachadh: The scanner will automatically link to the vehicle's computer. Once linked, you can navigate the menu to select desired diagnostic functions.

Dealbh 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. Stiùireadh Obrachaidh
Use the navigation buttons (Up, Down, OK, Back) on the device to select and confirm menu options.
4.1 Còdan a leughadh agus a ghlanadh
- 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 Sruth Dàta Beò
This function displays real-time data from the vehicle's sensors.
- From the "OBDII/EOBD" menu, select "Live Data".
- Faodaidh tu view data in text format or graphical format for selected parameters.
4.3 Inbhe Deisealachd 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 Bataraidh Voltage Monitor
Allows for a quick check of the vehicle's 12V battery voltage.
- Bho phrìomh chlàr-taice, tagh "Bataraidh".
- Tha am bataraidh gnàthach voltagThèid e a thaisbeanadh air an scrion.

Dealbh 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.

Dealbh 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. Cumail suas
- Glanadh: Cleachd clò bog, tioram gus taobh a-muigh an sganair a ghlanadh. Na cleachd innealan-glanaidh sgrìobach no fuasglaidhean.
- Stòradh: Stòraich an inneal ann an àrainneachd thioram, fhionnar, air falbh bho sholas dìreach na grèine agus teòthachd anabarrach.
- Cùram càball: Avoid bending or twisting the OBD2 cable excessively. Ensure the connector is clean and free of debris before plugging it into the vehicle.
6. A ’dèanamh trioblaid
- Scanner Does Not Power On:
- Ensure the OBD2 connector is securely plugged into the vehicle's port.
- Verify the vehicle's ignition is in the "ON" position.
- Check the vehicle's fuse for the OBD2 port (consult your vehicle's manual).
- Linking Error / Communication Failure:
- Confirm the vehicle is OBDII compliant (most vehicles after 1996).
- Ensure the ignition is "ON" and the engine is off or running as required by the test.
- Thoir sùil airson ceanglaichean sgaoilte sam bith.
- Try connecting to a different OBDII compliant vehicle to rule out scanner malfunction.
- "DTCs Not Found" Message:
- This indicates that no Diagnostic Trouble Codes are currently stored in the vehicle's computer.
7. Sònrachaidhean
| Feart | Mion-fhiosrachadh |
|---|---|
| Modail | EF18 |
| Brand | Dollarfix |
| Co-fhreagarrachd | OBDII/EOBD/CAN compliant vehicles (most after 1996) |
| Pròtacalan le taic | ISO14230-4 KWP, ISO15765-4 CAN, ISO9141-2, J1850 VPW, SAE J1850 PWM |
| Taisbeanadh | Sgrion LCD backlit |
| Stòr cumhachd | Vehicle OBD2 port (powered by vehicle's 12V battery, no internal battery required for operation) |
| Meudan | 6.69 x 2.76 x 2.76 òirleach (17.0 x 7.0 x 7.0 cm) |
| Cuideam | 260 g |
| Cànanan le taic | 8 cànan |

Dealbh 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. Barantas agus Taic
For warranty information and technical support, please refer to the contact details provided with your product packaging or visit the official Dollarfix weblàrach.
Dèanadair: Dollarfix
ASIN: B0CWLDMC1P
UPC: 768297280023