**For the user’s guide Click Here.**
**To order Click Here.**
DAWN OBD Inspector™ for Clean Truck Check has been approved by CARB and is described on this webpage. For other applications of OBD Inspector including detecting tampering click here.
OBD Inspector™ is a small, easily portable solution and quick to install. It is ideal for the roaming inspector or at a service site. Just attach the hardware to the vehicle network connector, turn on the engine, and open the smart phone app. Complete the test within 2 minutes.
Benefits of OBD Inspector
- Use any existing iPhone or iPad for an extremely portable solution.
- Multiple users can conveniently use the same unit.
- The hardware is so small it fits in the palm of your hand. A single cable plugs the device into both the 9-pin and 16-pin connectors
- It wirelessly connects to the iOS device so you don’t need to climb into the vehicle.
- Use a bar code reader on your iPhone/iPad to input the VIN easily.
- HEM Data provides good tech support and an excellent user’s guide.
- HEM Data is the only company providing the optional Pre-CheckTM app so you can submit to CARB with confidence that your vehicle will pass.
- Many customers refer our products to friends and associates.
California Clean Truck Check
The California Air Resources Board (CARB) has developed the Clean Truck Check to ensure that heavy-duty vehicle emission control systems function properly and that emissions remain low throughout their operating life. The Clean Truck Check applies to nearly all diesel and alternative fuel vehicles with a gross vehicle weight rating (GVWR) of over 14,000 pounds, including all out-of-state and out-of-country vehicles. Vehicles with diesel engines that are model year 2013 and newer (and 2018 and newer hybrid or alternative fuel engines) are required to submit OBD data. Tests must be submitted twice per year starting in 2025 and increases to four times per year on October 1, 2027.
Interested test personnel must successfully complete a free online training session from CARB. An approved tester will receive a Tester ID that is valid for 2 years. A Test ID is required to use OBD Inspector. See the details of the CARB Clean Truck Check.
Components of DAWN OBD Inspector™
The DAWN OBD Inspector consists of four components
- CAN Mini Streamer™ hardware (dongle)
- Y-cable to both 9-pin and 16-pin connectors
- iPad or iPhone (iOS 12.4 and up)
- DAWN OBD Inspector™ software
OBD Inspector™ Hardware
HEM Data’s Mini Streamer sends the vehicle data to the OBD Inspector app. The Mini Streamer hardware conveniently fits directly on the 9-pin J1939 connector. A Y-cable connects to both the 9-pin J1939 (green and black) and the 16-pin J1979 connectors. The 16-pin connector is used on Volvo, Mack, and medium-duty trucks. Baud rates of 250k, 500k, and 1000k are automatically detected.
CAN Mini Streamer™ + Y-Cable
The Mini Streamer acquires all necessary vehicle data and sends it wirelessly to the DAWN OBD Inspector™ app. Therefore, test personnel don’t need to climb into the cab.
OBD Inspector™ Software
OBD Inspector is supported for iPad, iPhone, and Mac. The Mini Streamer creates its own WiFi network and sends the data directly to the iPhone/iPad. The app displays real-time information to the user as the test is progressing.
The app is approved by CARB for J1939 (9-pin) and J1979 (16-pin) support. The app is on the Apple App Store. To activate the app, a license needs to be purchased from HEM Data.
CARB requires that the app have internet access to start the test so that the data is immediately forwarded to the CARB website. If your iPad or iPhone doesn’t have cellular service, you can access the internet using your office network, and Android phone, or another hotspot.
Below is a screenshot of the real-time data during the test. The progress bar at the bottom shows the user when the test has been completed.
Parameters table showing live data
The screenshot above shows the live values table. A progress bar is shown at the bottom.
VIN Reader
CARB requires that the VIN be entered manually which is time consuming and easy to mistype. Using any 3rd party barcode reader app on your iOS device is an easy way to copy the VIN into the OBD Inspector app.
Pre-Check App
Many users want to know whether a vehicle will pass a CTC inspection prior to submitting to CARB. This provides more time than the 30-day requirement to repair a vehicle if the vehicle would fail a CTC submission. DAWN OBD Pre-Check™ is a separate app that works with our Mini Streamer. HEM Data’s server anticipates how CARB will analyze CTC data.
The Pre-Check™ app generates a report immediately after submitting the test. The report includes key CTC information including any diagnostic trouble codes (DTCs), the number of warm-ups, miles, hours driven since codes have been cleared, and the status of each monitor. If the vehicle fails, the report states why. Click here for an example report.
Conveniently, the pre-check app does not require a login or an internet connection during the test. The price for the optional DAWN OBD Pre-Check™ is $395 annually.
Ordering Information
To order click here.
The total price is $1450. This includes:
- Mini Streamer hardware
- Software license and support
- Y-cable to both the 9-pin J1939 and the 16-pin J1962 (OBD-II) connectors
With Pre-Check™ the price is $1845.
The license is for 1 year and the renewal is $600. Your subscription begins when you do your first test. Our products ship 2-5 business days after receipt of an order.
Send your questions to sales@hemdata.com, or call 248 559-5607.
Customer Comments
- It couldn’t be made any simpler; I tested 20 trucks in half an hour.
- Beautiful product, I can complete the test in 2 minutes.
- I really like this product. It’s awesome. It’s quick and automated; no training is needed.
- It’s so convenient to use my phone’s bar code reader so I don’t have to type the 17-character VIN after each test that CARB requires.
For the FAQs Click Here.
For the user’s guide Click Here.
For support, email support@hemdata.com. Thank you for your interest.
