Viecar ELM327 OBD2 V1.5 BT4.0-Wireless Scanner
Note: Acrylic box/Carton Viecar ELM327 V1.5. According to customer feedback, this product is compatible with Carista software.
Many functions, supports most cars on the market.
Purchase Notes
Some customers have reported connection issues when pairing with iOS via Bluetooth. Please follow the correct connection method below, as BT4.0-Wireless pairing for Viecar differs from standard Bluetooth connections on iOS.
- Open Bluetooth first (but do not connect the device through your phone’s Bluetooth settings—this method is incorrect!).
- Open the diagnostic software (e.g., AUTO Doctor).
- Go to "Extras" → "Connectivity" → select "BT-Wireless" → tap "Device" → choose "Viecar BLE".
- Complete the Bluetooth connection within the "Connectivity" menu, then close and reopen the app before reconnecting to your vehicle.

Software Features
The software can perform the following operations:
- Read diagnostic trouble codes – both generic and manufacturer-specific – with definitions (database includes over 3000 code descriptions)
- Clear error codes and turn off the MIL ("Check Engine" light)
- Display real-time sensor data, including:
- Engine revolutions per minute (RPM)
- Calculated load value
- Coolant temperature
- Fuel System Status
- Vehicle speed
- Short-term fuel trim
- Long-term fuel trim
- Intake manifold pressure
- Injection advance time
- Intake air temperature
- Air flow rate
- Absolute throttle position
- Oxygen sensor voltage correlated with short-term fuel trim
- Fuel pressure
- Fuel consumption monitoring and more...
Future Software Features
- Data chart display and logging
- Freeze frame data
- Continuous and discontinuous oxygen sensor results
- And more...

Supported OBDII Protocols
- SAE J1850 PWM (41.6 Kbaud)
- SAE J1850 VPW (10.4 Kbaud)
- ISO 9141-2 (5 baud init, 10.4 Kbaud)
- ISO14230-4 KWP (5 baud init, 10.4 Kbaud)
- ISO14230-4 KWP (fast init, 10.4 Kbaud)
- ISO15765-4 CAN (11-bit ID, 500 Kbaud)
- ISO15765-4 CAN (29-bit ID, 500 Kbaud)
- ISO15765-4 CAN (11-bit ID, 250 Kbaud)
- ISO15765-4 CAN (29-bit ID, 250 Kbaud)

Product Specifications – Viecar ELM327 V1.5
- Communication method: BT4.0-Wireless
- Software platform: Android / iOS
- Operating voltage: 9V–16V
- Operating current: 45mA
- Operating temperature: -40°C to 85°C
- Operating humidity: <60%
- Dimensions: 45mm × 40mm × 18mm
- Supported vehicles: All OBDII-compliant vehicles

Enhanced Driving Experience with HUD Integration
Viecar BT4.0-Wireless goes beyond basic diagnostics by enabling a stunning head-up display (HUD). Drivers no longer need to look down at the dashboard, reducing distraction and enhancing safety. The real-time HUD interface delivers a premium driving experience by visualizing data not shown on the original vehicle display, significantly improving situational awareness and visual engagement.



Package Contents
- 1 × Viecar Scanner
- 1 × User Manual









































