Specification	Details
Product	V011 Bluetooth OBD2 Scanner
Connection	Bluetooth
Advertised Bluetooth Version	Bluetooth 5.4
Mobile Compatibility	iOS and Android
Companion Software	Dedicated OBD Home app
Trouble Code Reading	Yes, supported OBD-II DTCs
Trouble Code Clearing	Yes
Check Engine Light Reset	Yes, after supported DTC clearing
Live Data	Yes
Freeze Frame	Yes, where supported
Readiness Monitors	Yes
VIN Retrieval	Yes, where vehicle reports VIN through OBD-II
Sensor Data	Yes, supported PIDs
Data Graphing	Yes
Languages	Multiple languages advertised
Connection Type	Wireless
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 the stored diagnostic trouble code and provide 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 codes — EVAP system problems
P0500-series codes — Speed or idle-related faults
P0700 — Transmission control system malfunction notification

Once you retrieve the code, use the Pro Street DTC Doctor to research its meaning, symptoms, causes and proper diagnostic steps:

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

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

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

Clear Supported OBD2 Fault Codes

The V011 can send a request to clear supported OBD-II engine trouble codes.

That can also turn off the:

Check Engine Light / MIL

after an appropriate repair has been completed.

However:

Clearing the code does not repair the vehicle.

If the underlying fault remains, the ECU can detect the problem again and turn the light back on.

A better diagnostic process is:

Read the trouble code.
Record freeze-frame information.
Review live data.
Diagnose the cause.
Repair the problem.
Clear the code.
Verify that the code does not return.

Deleting the warning light without fixing the malfunction is not vehicle repair.

It’s just making the dashboard quieter.

Important Note About the Seller’s Code-Clearing Claim

The source listing says that an unrepaired fault may only be clearable using a dealership computer.

That wording is misleading.

A generic OBD-II scanner can usually request that supported engine DTCs be cleared.

However, if the malfunction remains, the fault can return immediately or after the ECU reruns the applicable monitor.

Some manufacturer-specific codes or modules may require more advanced diagnostic equipment, but an ordinary persistent engine fault does not automatically require dealership hardware simply because the underlying problem has not been repaired.

Live OBD2 Data Monitoring

The V011 can display supported live vehicle information through its mobile application.

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

Not every vehicle reports every PID.

Available information depends on:

Vehicle manufacturer
Model year
ECU
OBD-II protocol
Software support

Graph Live Vehicle Data

One useful feature of the V011 system is its graphical display.

Instead of viewing every parameter as a number, the companion application can plot supported data over time.

This can make it easier to spot:

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

Graphing can be especially useful when troubleshooting intermittent conditions.

Monitor Engine Coolant Temperature

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

That can help when diagnosing:

Overheating
Thermostat problems
Cooling fan issues
Coolant temperature sensor problems
Slow engine warmup

For additional cooling-system diagnostics, visit:

https://my.prostreetonline.com/

Monitor Engine RPM

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

RPM data can help investigate:

High idle
Low idle
Stalling
Throttle problems
Idle-control faults

For example, if your vehicle stores P0507, see the Pro Street diagnostic guide:

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.

That data can be displayed alongside other engine information inside the application.

This can be useful for:

Diagnostic testing
Data logging
Sensor comparison
Custom dashboards

Never interact with diagnostic software while driving unless it can be done safely and legally.

Monitor Control-Module Voltage

The app is also advertised as displaying control-module voltage.

Voltage information can help identify situations involving:

Low battery voltage
Charging-system problems
Voltage drops
Electrical instability

However, OBD-II voltage information should not replace direct electrical testing with a quality digital multimeter when diagnosing a charging or starting problem.

Freeze-Frame Data

Freeze frame can be one of the most useful pieces of OBD-II information.

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

Depending on vehicle support, freeze frame may include:

Engine RPM
Vehicle speed
Coolant temperature
Engine load
Fuel trim
Throttle position
Other available PIDs

That helps answer:

What was the vehicle doing when the fault happened?

A lean condition at idle may point you in a different diagnostic direction from a lean condition under heavy load.

Check Emissions Readiness Monitors

The V011 can display supported OBD-II readiness status.

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

Catalyst
Oxygen sensors
EVAP
Misfire monitoring
Fuel system

This can be useful before:

Smog inspection
Emissions testing
Used-car inspection

Learn more through Pro Street’s OBD-II technical library:

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

For federal emissions information, visit:

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

Clearing Codes Can Reset Readiness Monitors

When you clear OBD-II trouble codes, emissions readiness monitors may also reset to:

Not Ready

The ECU 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 reason for the vehicle to fail or be rejected for testing.

Repair first.

Reset second.

Drive cycle third.

Inspection last.

Retrieve Vehicle VIN Information

The V011 is advertised as being able to retrieve the:

Vehicle Identification Number

when the vehicle provides that information through OBD-II.

VIN retrieval can be useful when working with:

Multiple vehicles
Used vehicles
Fleet cars
Diagnostic reports

Some vehicles may not provide complete VIN information through generic OBD-II, particularly older implementations.

Bluetooth 5.4 Connectivity

The seller describes the V011 as using:

Bluetooth 5.4.

The most useful benefit of Bluetooth connectivity is that it eliminates the cable between the scanner and your phone.

That gives you more flexibility to:

Sit inside the vehicle
Monitor data from the driver’s seat
Position the phone on a mount
View graphs while performing stationary diagnostics

The Bluetooth version alone does not determine scan speed.

Vehicle protocol, ECU response time, adapter electronics and software can all affect actual diagnostic performance.

V011 OBD2 Scanner for iPhone

The scanner is advertised as compatible with:

Apple iOS devices.

The seller’s instructions specifically state that iPhone users should:

Turn Bluetooth on.
Plug the scanner into the vehicle.
Open the OBD Home app.
Allow the app to discover the scanner.

The source instructions say not to manually pair the adapter through the normal iPhone Bluetooth settings.

Follow the current app instructions supplied with the unit.

V011 OBD2 Scanner for Android

Android compatibility is also advertised.

Typical setup is:

Plug the scanner into the OBD-II connector.
Turn the vehicle ignition on.
Enable Bluetooth.
Launch the OBD Home app.
Follow the application’s connection process.

Exact steps may vary by Android version and device.

Dedicated OBD Home App

The V011 uses a dedicated companion application referred to in the supplied listing as:

OBD Home.

The app is intended to provide:

Trouble code reading
Code explanations
Live data
Data visualization
Freeze-frame information
Diagnostic reports
Emissions readiness information

Before buying, verify that the app is currently available for your phone’s operating system and that your device meets its current requirements.

How to Connect the V011

Step 1 — Locate the OBD-II Port

Find the vehicle’s 16-pin diagnostic connector.

It is commonly located:

Under the dashboard
Near the steering column
Above the driver’s footwell
Behind a small dashboard panel

Step 2 — Plug In the Scanner

Insert the V011 securely into the diagnostic connector.

Step 3 — Turn the Ignition On

Depending on the test, the vehicle may need:

Ignition on
Engine running

Follow the app instructions.

Step 4 — Enable Bluetooth

Turn Bluetooth on through your phone.

Step 5 — Open OBD Home

Launch the dedicated application.

Step 6 — Connect to the Vehicle

Allow the software to establish communication.

Step 7 — Begin Diagnosis

Read:

Stored codes
Pending codes
Live data
Freeze frame
Readiness information

Supports Multiple OBD-II Communication Protocols

The seller advertises support for:

nine OBD-II protocols.

That is intended to provide compatibility across vehicles using different standardized OBD-II communication methods.

Common OBD-II communication families include:

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

Exact protocol support should be confirmed from the manufacturer’s current technical documentation.

Vehicle Compatibility

The seller advertises compatibility with more than:

96% of vehicle makes and models

and lists brands including:

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

We recommend treating the “96%” figure as a seller claim rather than a universal guarantee.

Compatibility depends on:

Country
Model year
OBD-II implementation
ECU
Fuel type
Diagnostic protocol
App support

What Years Does the V011 OBD2 Scanner Work With?

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

Vehicles sold in other markets may have different implementation dates.

A 1996-or-newer model year alone does not guarantee that every advanced function will be available.

Is This OBD2 Scanner Universal?

Not literally.

“Universal OBD2 scanner” is a common marketplace phrase, but no basic diagnostic adapter should be assumed to work with every system on every vehicle.

The V011 is better described as:

a multi-vehicle generic OBD-II diagnostic scanner.

Does the V011 Read ABS Codes?

Do not assume it does.

The supplied feature list focuses primarily on:

OBD-II engine and emissions diagnostics.

Standard generic OBD-II does not guarantee access to:

ABS
Airbag/SRS
TPMS
Body control
Electronic parking brake
Immobilizer

Those systems may require vehicle-specific software and more advanced diagnostic hardware.

Does It Read Airbag Codes?

Basic generic OBD-II compatibility does not automatically include SRS or airbag modules.

If airbag diagnosis is one of your primary requirements, use a scanner that explicitly lists:

SRS/airbag module coverage

for your exact vehicle.

Can It Diagnose Transmission Problems?

Generic OBD-II may provide some transmission-related information.

For example:

P0700

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

Our full P0700 diagnostic guide is available here:

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

However, a basic scanner may not retrieve every manufacturer-specific transmission code stored inside the transmission control module.

Diagnose P0300 Misfire Codes

If the V011 retrieves:

P0300

the ECU has detected random or multiple cylinder misfires.

Possible causes can include:

Ignition coils
Spark plugs
Injectors
Vacuum leaks
Fuel pressure
Compression
Wiring

Use the code as your starting point rather than immediately purchasing ignition parts.

Browse the P-Code diagnostic library:

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

Diagnose P0171 Lean Codes

A P0171 code indicates:

System Too Lean — Bank 1

Potential causes include:

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

Our P0171 troubleshooting guide is here:

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

Diagnose P0420 Codes

P0420 is another common OBD-II code.

It indicates catalyst-system efficiency has fallen below the threshold expected by the ECU.

That does not automatically mean:

replace the catalytic converter.

Diagnosis may involve:

Oxygen sensor operation
Exhaust leaks
Misfire history
Fuel control
Catalyst condition

Start with the code and diagnostic evidence rather than replacing the most expensive component first.

V011 vs Basic Handheld OBD2 Scanner

V011 Bluetooth Scanner

Advantages include:

Wireless connection
Smartphone display
Graphs
Portable size
Live-data visualization

Traditional Handheld Scanner

Advantages can include:

Built-in screen
No phone required
Dedicated controls
No separate app dependency

Which is better depends on how you prefer to diagnose vehicles.

V011 vs Professional Scan Tool

The V011 is best suited to:

Generic engine DTCs
Check Engine Light diagnosis
Live OBD-II data
Freeze frame
Emissions readiness
VIN retrieval

A professional bidirectional scanner may add:

ABS
SRS
Body modules
Active tests
Key programming
Coding
Adaptations
Service resets
Electronic parking brake functions
Manufacturer-specific data

They are different tool categories.

Useful for Used-Car Inspections

A compact Bluetooth scanner can also be useful when evaluating a used vehicle.

Check for:

Stored DTCs
Pending codes
Readiness status
Freeze-frame information
Available live data

If many emissions monitors show:

Not Ready

the ECU may have recently been reset or the battery disconnected.

That does not prove somebody erased trouble codes, but it’s worth asking why.

Helpful for DIY Mechanics

The V011 is particularly useful for:

Home mechanics
Car enthusiasts
First-time DIY diagnostics
Students
Used-car shoppers
Owners of multiple vehicles

It gives you a relatively simple way to see what the ECU is reporting before you start replacing parts.

Multi-Language Support

The supplied product description advertises support for multiple languages, including:

English
German
Spanish
Finnish
French
Italian
Dutch
Portuguese
Chinese

Actual language availability may depend on the current app version.

Diagnostic Reports

The dedicated software is advertised as supporting diagnostic reports.

That can make it easier to document:

Trouble codes
Vehicle information
Diagnostic findings
Live-data observations

Reports can be particularly useful when discussing a vehicle problem with a mechanic or comparing data before and after a repair.

Unplug the Scanner After Use

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

That’s good practice.

The vehicle’s OBD-II connector supplies electrical power to the adapter.

While an individual scanner may use relatively little current, leaving accessory devices connected for extended periods can contribute to battery drain.

For long-term parking:

unplug it.

What Comes With the V011?

According to the supplied listing, the package includes:

V011 Bluetooth OBD2 code reader
Instruction manual
Access to the companion application
Seller troubleshooting support

Confirm current package contents before ordering.

Who Should Buy the V011?

The V011 makes the most sense for someone looking for an affordable mobile tool for:

Check Engine Light diagnostics
OBD-II trouble codes
Live vehicle monitoring
Freeze-frame data
Emissions readiness
VIN retrieval
Basic DIY troubleshooting

Who Should Buy a More Advanced Scanner?

Consider a more advanced tool if you regularly need:

ABS diagnostics
SRS diagnostics
Bidirectional control
Electronic parking brake service
TPMS programming
Injector coding
Key programming
Module coding
Manufacturer-specific adaptations

Don’t buy a generic OBD-II adapter expecting dealer-level capability.

Shop Automotive Diagnostic Tools

Find automotive tools, diagnostic equipment and replacement parts at:

https://prostreetonline.com/

For additional automotive troubleshooting information, visit:

https://my.prostreetonline.com/

Pro Street OBD-II Diagnostic Resources

Final Take

The V011 Bluetooth OBD2 Scanner for iPhone and Android gives DIY vehicle owners an easy way to access basic diagnostic information without carrying a traditional handheld scan tool.

Its useful functions include:

reading engine trouble codes

clearing supported codes

checking emissions readiness

viewing live data

retrieving freeze frame

reading VIN information

and:

graphing supported sensor information.

The dedicated mobile app also makes the V011 approachable for someone who is just starting to learn automotive diagnostics.

Just keep its role in perspective.

A scanner can tell you:

what the ECU detected.

It cannot automatically tell you:

which part to buy.

Retrieve the code, study the freeze-frame and live data, then use the Pro Street DTC Doctor to investigate the actual cause: