Autohil AX4 is a simple and easy to use OBDII Bluetooth car scanner that can help you connect to your vehicle's data using your iOS, Android and Windows smart devices. You can diagnose engine trouble codes and know why CHECK ENGINE light is on. You can also customise real-time fuel economy and performance gauges and log engine, trip and fuel data. Autohil AX2 scanner helps you connect to heaps of OBDII Apps available on Google Store giving you more choices on how to use. Simply connect the scanner to OBDII port and pair with your preferred App(s) or Software.

Use Your Smartphone To Get Engine Trouble Codes, Performance Gauges And Live Sensor Data

Scanner Benefits

With this simple and easy to use Bluetooth scan tool, you can reliably diagnose engine problems and monitor your car’s real-time performance data using your Android devices.

This scanner will help you:

  • Improve your eco-driving with real-time fuel economy data
  • Customise a number of OBD-II performance gauges with the type of data you want
  • Diagnose your car and discover why your engine light is on and turn it off

Torque Performance App

  • Torque is a vehicle / car performance / diagnostics tool and scanner that uses an OBD II Bluetooth adapter to connect to your OBD2 engine management / ECU
  • Customise your own dashboard with the widgets / gauges you want!
  • Note: App sold separately from Google Play store. Functions and gauges is car dependent and differ from one App to another.

Real-Time Performance Gauges 

Pair your AX4 Bluetooth Scan Tool to your preferred performance App and see what your car is doing in real-time: get OBD2 fault codes, car performance gauges, live sensor data and more! Real-time performance data include:

Engine RPM Calculated Load Value Coolant Temperature
Fuel System Status Vehicle Speed Short Term Fuel Trim
Long Term Fuel Trim Intake Manifold Pressure Timing Advance
Intake Air Temperature Air Flow Rate Absolute Throttle Position
Oxygen sensor voltages Fuel System status Fuel Pressure
Fuel Consumption Trip data Many others

*OBDII sensor gauges are vehicle dependent. 

Diagnose Engine Trouble Codes DTCs

Get engine trouble code & its' meanings right on your smartphone’s screen. Know why your engine light is on and turn it off.

  • [Reads & Clear DTCs]: Read Engine diagnostic trouble codes DTC and provide both the code and its' meaning and clear them
  • [Engine Live Data]: Customise and monitor real-time engine parameters.
  • [Freeze Frame Data]: Recorded system parameters values at the time when engine malfunction first occurred
  • [Readiness test]: Test and check status of engine emission control systems
  • [VIN]: Read vehicle info such as Vehicle Identification Number VIN, Calibration IDs CALID and Calibration Verification Number CVN

*Most Apps can only diagnose (read & clear) generic engine fault codes.

Easy To Setup Scan Tool

Plug the Bluetooth scan tool into your vehicle’s OBD-II port and pair with a performance App of your choice. We recommend TORQUE for Android or DashCommand for iOS. 


Compatible with OBDII vehicles only
Engine Diagnostics + Gauges
Bluetooth connection for iOS and Android
Upgraded 25K80 Chip for faster more reliable readings
Communication: Bluetooth 4.0
Control Chip: PICI8F25K80
Supported Systems: iOS / Android / Windows
Operating Voltage: 9-16V
Working current:50mA
Standby current: 45mAH
Power Consumption: 0.75 Watts
Operating Temperature: -15 to 100
Dimensions: Width 4.4cm Length 8cm Height 2.5cm 

Compatible OBDII Protocols

ISO 9141-2 (5 baud init, 10.4 kbaud)
ISO 14230-4 KWP (5 baud init, 10.4 kbaud)
ISO 14230-4 KWP (fast init, 10.4 kbaud)
ISO 15765-4 CAN (11 bit ID, 500 kbaud)
ISO 15765-4 CAN (29 bit ID, 500 kbaud)
ISO 15765-4 CAN (11 bit ID, 250 kbaud)
ISO 15765-4 CAN (29 bit ID, 250 kbaud)
SAE J1850 PWM (Found on many Ford vehicles)
SAE J1850 VPW (Found on many GM vehicles)


99% of orders are dispatched from our Melbourne warehouse within 24 hours after payment is cleared. All orders are shipped with Australia Post e-Parcel with tracking and signature on delivery.

Express shipping is available at additional cost. For next day delivery, please ensure your postcode is within Australia post Next Day Delivery network.


We offer 30 days money back guarantee on all orders. If your item was purchased in error, or you've simply changed your mind, it may not be too late for a refund. The item must be returned in original re-saleable condition - Not opened, used or damaged and ready to be put back on the shelf. 


All products supplied by AUSCANNERS come with 12 months limited warranty unless otherwise specified. Warranty covers defects in materials and/or workmanship. If a defect arises and a valid claim is received, AUSCANNERS may at its option repair or replace the product.

Naturally the warranty cover does not extent to cover damage caused by normal wear and tear, accidents, misuse, lack of maintenance, neglect, natural disaster, or other external causes; to damage caused by operating the equipment in a manner outside that described in the instructions.

AX4 scanner

By: on 14 January 2020
Great device

Autohil AX4 ELM327 1.5V OBD2 OBD Bluetooth 4.0 Sca

By: on 27 December 2019
Exactly as described. Happy

Autohil AX4

By: on 5 October 2019
Just Awesome

OBDII scanner

By: on 27 June 2019
Works well easy setup and links easy to android and use Torque and Dasboard apps for real time ECUstats

AX4 scanner

By: on 3 May 2019
Great value, fast postage, thanks heaps!

Autohil ax4 scanner

By: on 26 April 2019
As described great product, fast post, 5 star.

Autohil AX4

By: on 9 April 2019
All good, unit works well.


By: on 13 March 2019
Excellent seller, extremely quick delivery, excellent customer service.

autohil ax4

By: on 13 March 2019
Just perfect thanks

autohil ax4

By: on 22 February 2019
Quality product, very fast delivery highly recommend.

AX4 scanner

By: on 24 January 2019
All good. Speedy delivery. Thanks. Very helpful with sorting out some issues.

Autohil AX4

By: on 24 January 2019
Wonderful communication, highly recommended, would buy again!!

Versatile OBDII bluetooth scanner

By: on 18 January 2019
Works well with DashCommand app on S9+ Android phone. I have tested it on 2015 Hyundai i30 1.6ltr and a wide variety of gauges operated well. I will be trialing it on 2012 3.8ltr Crysler 300c soon and I expect that results will be similar. It's most challenging test will be on a 2007 Mini Cooper S with Fuel Flow fault codes to trace.

Scanning a diesel pajero.

By: on 11 January 2019
The scan tool works well with the torque pro app on android, it also gives me auto trans temperature.

Great piece of kit

By: on 8 January 2019
Easy install, works a treat. Love it.

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