Specification	Details
Product	V011 Bluetooth OBD2 Scanner
Connection	Bluetooth
Advertised Bluetooth Version	Bluetooth 5.4
Mobile Compatibility	iOS and Android
Companion App	OBD Home
Trouble Code Reading	Yes
Trouble Code Clearing	Yes
Check Engine Light Reset	Yes, after supported code clearing
Live Data	Yes
Freeze Frame	Yes, where supported
Readiness Monitors	Yes
VIN Retrieval	Yes, where vehicle reports VIN
Sensor Data	Yes, supported PIDs
Data Graphing	Yes
Diagnostic Reports	Advertised
Supported Protocols	Seller states 9 OBD-II protocols
Languages	Multiple languages advertised
Recommended Storage	Unplug after use

Read Check Engine Light Codes From Your Phone

The V011 allows compatible iPhone and Android devices to communicate with a vehicle’s OBD-II system.

When the Check Engine Light appears, the scanner can retrieve stored diagnostic trouble codes and give you a starting point for troubleshooting.

Common codes include:

P0300 — Random or multiple cylinder misfire
P0301–P0308 — Cylinder-specific misfires
P0171 — System too lean
P0172 — System too rich
P0420 — Catalyst efficiency below threshold
P0440-series — EVAP system faults
P0507 — Idle speed higher than expected
P0700 — Transmission control system malfunction notification

Once you retrieve a code, use the Pro Street DTC Doctor to continue the diagnosis:

https://my.prostreetonline.com/dtc-obdii/

You can also browse the full Pro Street P-Code library:

https://my.prostreetonline.com/dtc-doctor/p-code-obd-ii-codes/

Clear Supported OBD-II Fault Codes

The V011 can request that supported engine trouble codes be cleared.

That may also turn off the:

Check Engine Light / MIL

after the underlying problem has been repaired.

However:

Clearing a code does not fix the vehicle.

If the malfunction remains, the ECU can detect it again and the warning light can return.

The proper process is:

Read the code.
Record the code.
Review freeze-frame data.
Check live data.
Diagnose the fault.
Repair the vehicle.
Clear the code.
Verify the fault does not return.

Important Correction About Code Clearing

The supplied marketplace copy says that if the vehicle is not repaired, the fault code can only be cleared using dealership equipment.

That is misleading.

A generic OBD-II scanner can usually request clearing of supported engine DTCs whether or not the underlying problem has been fixed.

If the fault remains, the ECU can simply detect it again.

Some manufacturer-specific modules and fault codes may require more advanced diagnostic equipment, but an unrepaired generic engine fault does not automatically require dealership hardware.

Live OBD2 Data Monitoring

The V011 can display supported live information through the OBD Home app.

Depending on the vehicle, available PIDs may include:

Engine RPM
Vehicle speed
Coolant temperature
Control-module voltage
Throttle position
Engine load
Intake air temperature
Fuel trims
Oxygen sensor information
Manifold pressure
Mass airflow
Ignition timing
Fuel-system status

Available data depends on the vehicle and ECU.

Graph Live Vehicle Data

The V011 can display supported diagnostic information in graphical form.

The supplied listing describes:

Line graphs
Numerical values
Real-time data visualization

This can make changing values easier to understand than simply watching raw numbers.

Graphing may help when troubleshooting:

Temperature changes
Voltage drops
RPM fluctuations
Fuel-trim movement
Sensor irregularities

Monitor Engine Coolant Temperature

A compatible vehicle may report actual coolant temperature through OBD-II.

That can help when investigating:

Overheating
Thermostat problems
Cooling fan issues
Coolant temperature sensor faults
Slow engine warm-up

For additional automotive technical information:

https://my.prostreetonline.com/

Monitor Engine RPM

The V011 can display engine RPM when the vehicle reports that PID.

RPM information may be useful when diagnosing:

High idle
Low idle
Stalling
Throttle problems
Idle-control faults

For example, if the vehicle stores P0507, see:

https://my.prostreetonline.com/dtc-doctor/p0507-code-idle-control-system-rpm-higher-than-expected/

Monitor Vehicle Speed

Supported vehicles can transmit vehicle-speed information through OBD-II.

The app can display that information alongside other engine data.

This can be useful for:

Diagnostic testing
Data logging
Comparing sensor information

Do not interact with diagnostic software while driving unless it can be done safely and legally.

Monitor Control-Module Voltage

The V011 is advertised as displaying control-module voltage.

This can help provide clues involving:

Low battery voltage
Charging-system issues
Voltage instability

However, OBD-II voltage data should not replace direct electrical testing with a proper digital multimeter when diagnosing charging or starting problems.

Freeze-Frame Data

Freeze frame is one of the most useful standard OBD-II features.

When certain faults are detected, the ECU can save a snapshot of operating conditions around the time the code was stored.

Depending on the vehicle, freeze frame may include:

Engine RPM
Vehicle speed
Coolant temperature
Engine load
Fuel trim
Throttle position

That can help answer:

What was the vehicle doing when the fault occurred?

Check Emissions Readiness Monitors

The V011 can display supported OBD-II readiness information.

Readiness monitors indicate whether the ECU has completed self-tests for systems such as:

Catalyst
Oxygen sensors
EVAP
Misfire
Fuel system

This can be useful before:

Smog inspection
Emissions testing
Used-car inspection

For federal emissions information:

https://www.epa.gov/vehicle-and-fuel-emissions-testing

Clearing Codes Can Reset Readiness

When OBD-II trouble codes are cleared, readiness monitors may reset to:

Not Ready.

The vehicle may then need to complete specific driving conditions before those monitors become ready again.

That means clearing a code immediately before an emissions inspection can create another problem.

Repair first.

Clear second.

Complete the drive cycle.

Then verify readiness.

Retrieve Vehicle VIN Information

The V011 is advertised as being able to retrieve:

Vehicle Identification Number information

when the vehicle reports that information through OBD-II.

VIN retrieval can be useful when working with:

Multiple vehicles
Used vehicles
Diagnostic records

Not every vehicle provides complete VIN data through generic OBD-II.

Bluetooth 5.4 Connectivity

The seller describes the V011 as using:

Bluetooth 5.4.

That provides a wireless connection between the scanner and compatible mobile devices.

However, Bluetooth version alone does not determine scan speed.

Actual performance can also depend on:

Vehicle protocol
ECU response time
Adapter hardware
Mobile device
Application software

V011 OBD2 Scanner for iPhone

The V011 is advertised as compatible with:

Apple iOS devices.

According to the supplied instructions, iPhone users should:

Turn Bluetooth on.
Plug the scanner into the vehicle.
Open the OBD Home app.
Allow the application to establish the connection.

The seller specifically says not to manually pair the device from normal iPhone Bluetooth settings.

Follow the current OBD Home instructions for your app version.

V011 OBD2 Scanner for Android

Android compatibility is also advertised.

Typical setup is:

Plug in the V011.
Turn the vehicle ignition on.
Enable Bluetooth.
Open OBD Home.
Follow the application’s connection instructions.

Exact steps may vary depending on Android version.

Dedicated OBD Home App

The supplied listing identifies the companion software as:

OBD Home.

The app is advertised as providing:

Trouble code reading
Code explanations
Live data
Freeze frame
Readiness information
Diagnostic reports
Data visualization
Vehicle information

Before purchasing, verify that the current app is available for your mobile device and operating system.

Supports Multiple OBD-II Protocols

The seller claims the V011 supports:

nine OBD-II protocols.

Common standardized protocol families include:

ISO 9141
ISO 14230 / KWP
ISO 15765 CAN
SAE J1850 PWM
SAE J1850 VPW

The exact nine-protocol implementation should be confirmed from the manufacturer if protocol-level compatibility is important.

Vehicle Compatibility

The marketplace copy claims:

over 96% of car makes and models

and lists brands including:

Toyota
Honda
Chevrolet
Ford
Mercedes-Benz
Jeep
BMW
Porsche
Subaru
Nissan
Cadillac
Volkswagen
Lexus

I would treat the 96% number as a seller claim rather than a guaranteed compatibility figure.

Actual support depends on:

Model year
Market
ECU
OBD-II protocol
App support
Vehicle implementation

What Years Does the V011 Work With?

For U.S.-market gasoline passenger cars and light trucks, 1996 and newer is the typical starting point for standardized OBD-II.

Vehicles sold outside the United States may have different implementation dates.

Also remember:

1996+ does not mean every advanced feature works on every vehicle.

Is the V011 Universal?

Not literally.

“Universal OBD2 scanner” is common marketplace wording, but no basic adapter should be assumed to work with every module on every vehicle.

A more accurate description is:

multi-vehicle generic OBD-II diagnostic scanner.

Does It Read ABS Codes?

Do not assume ABS support.

The supplied feature list focuses mainly on:

OBD-II engine and emissions diagnostics.

Generic OBD-II does not guarantee access to:

ABS
SRS
TPMS
Body modules
Electronic parking brake
Immobilizer systems

Does It Read Airbag Codes?

Standard OBD-II does not automatically include SRS/airbag module access.

If airbag diagnostics are important, choose a tool that explicitly lists SRS support for your vehicle.

Can It Diagnose Transmission Problems?

Some transmission-related generic codes may be visible.

For example:

P0700

can indicate that the transmission control system has requested illumination of the MIL.

However, the actual manufacturer-specific transmission DTC may require more advanced module access.

See:

https://my.prostreetonline.com/dtc-doctor/p0700-code-transmission-control-system-malfunction/

Diagnose Lean Codes

If the V011 retrieves:

P0171

possible causes can include:

Vacuum leak
Intake leak
MAF sensor issue
Low fuel pressure
Fuel injector problem
Exhaust leak
Sensor fault

Our P0171 guide:

https://my.prostreetonline.com/dtc-doctor/p0171-code-system-too-lean-bank-1/

Diagnose Misfire Codes

A P0300-series code may involve:

Spark plugs
Ignition coils
Injectors
Vacuum leaks
Compression
Fuel pressure
Wiring

Do not automatically replace the part most commonly associated with the code.

Use the code as a starting point.

V011 vs Generic ELM327 Adapter

Generic ELM327 Adapter

Typically focuses on:

Basic engine codes
Live data
Third-party apps
Low-cost OBD-II access

V011

Adds a more integrated experience with:

Dedicated OBD Home app
Graphical data
Freeze frame
Readiness information
VIN retrieval
Diagnostic reports
Guided app interface

V011 vs TOPDON CarPal

TOPDON CarPal belongs to a higher diagnostic tier with supported features such as:

Full-system scanning
Additional vehicle modules
Maintenance reset functions

The V011 is best positioned as:

an affordable smartphone-based engine and emissions diagnostic scanner.

That keeps the product’s capability clear and avoids overselling it.

V011 vs FIXD

FIXD places more emphasis on:

Plain-language code explanations
Maintenance reminders
Multi-vehicle management
Optional premium services

The V011 focuses more directly on:

Generic OBD-II diagnostics
Live data
Graphs
Freeze frame
Readiness status

Different buyers may prefer one approach over the other.

Used-Car Inspection Tool

The V011 can be useful during a basic used-car inspection.

You can potentially check:

Stored engine codes
Pending codes
Readiness status
Freeze frame
Available live data

If several emissions monitors show:

Not Ready

the ECU may have been recently reset.

That does not prove codes were intentionally erased, but it is worth investigating.

Multi-Language Support

The supplied listing advertises support for:

English
German
Spanish
Finnish
French
Italian
Dutch
Portuguese
Chinese

Actual language availability depends on the current app version.

Diagnostic Reports

The OBD Home app is advertised as supporting diagnostic reports.

These can be useful for documenting:

Trouble codes
Vehicle information
Diagnostic findings

That information may be useful when discussing a vehicle problem with a repair shop.

Unplug the Scanner After Use

The seller recommends removing the V011 when diagnostic work is complete.

That is good practice.

The OBD-II port supplies power to the adapter.

Leaving accessory devices plugged in for long periods can contribute to battery drain, especially on a vehicle that sits unused.

For long-term parking:

unplug it.

What Comes With the V011?

According to the supplied listing, the package includes:

V011 Bluetooth OBD2 scanner
Instruction manual
Access to the OBD Home app
Seller troubleshooting support

Exact package contents should be confirmed before purchase.

Who Should Buy the V011?

The V011 is a good fit for:

DIY mechanics
First-time code-reader buyers
Automotive enthusiasts
Used-car shoppers
Drivers who want smartphone diagnostics
Owners who want live-data graphs
People who want a compact wireless scanner

Who Needs Something More Advanced?

Consider a full-system scanner if you need:

ABS diagnostics
SRS diagnostics
EPB service
TPMS programming
BMS registration
Bidirectional tests
ECU coding
Key programming

The V011 is primarily an:

engine and emissions OBD-II scanner.

Shop Automotive Diagnostic Tools

Find more diagnostic tools, repair products and automotive accessories at:

https://prostreetonline.com/

Pro Street OBD-II Resources

Final Take

The V011 Bluetooth OBD2 Scanner for iPhone and Android gives vehicle owners an affordable way to access useful diagnostic information directly from a smartphone.

Its strongest features include:

engine trouble code reading

supported code clearing

live data

freeze-frame information

emissions readiness

VIN retrieval

and:

graphical sensor monitoring.

It is not a replacement for a professional full-system diagnostic platform, but that is not what this product needs to be.

For someone who wants to understand why the Check Engine Light came on, review live engine data and perform basic OBD-II diagnostics without carrying a traditional handheld scanner, the V011 fills that role well.

Once the scanner retrieves a code, continue the diagnosis with Pro Street: