Bluetooth Data Link Connection Help

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General Bluetooth Interface Information

The NVH app calculates the most common types of vehicle vibrations with no additional tools required. Engine speed related vibrations, although rare, can be an exception. If your vehicle has an engine speed related vibration, the NVH app can read engine RPM directly from your vehicle’s Data Link Connector (DLC) for improved diagnostic results. Reading engine RPM directly requires a Bluetooth diagnostic tool.

If you are a full-time service professional, field service engineer, field technical specialist, instructor, technician, or mechanic. you may want to purchase the Bluetooth diagnostic tool for regular use.


Do I need a Bluetooth Interface?

You may need an optional Bluetooth datalink connector (DLC) interface for your vehicle depending upon what type of transmission you have. There are five main types of transmissions on the road today (Listed by popularity):

  1. Automatic Shifted Transmissions – A Bluetooth DLC interface tool is not needed, but it can speed up engine speed related vibration diagnosis. During diagnostics, the NVH app estimates engine RPM based upon your vehicle information. Without a Bluetooth data link connection, the estimated engine RPM is only accurate if you are maintaining a steady engine speed on a long, flat, road surface (Use cruise control where possible). Higher vehicle speeds typically give better results. For improved estimated engine RPM accuracy, adjust the shifting speeds for your transmission in the Settings Screen.
  2. Continuously Variable Transmission (CVT)** – A Bluetooth DLC interface tool is needed to diagnose engine speed related vibrations. Diagnosing tire speed and driveshaft speed related vibrations do not require a Bluetooth DLC interface tool.
  3. Manual Shifted Transmissions – A Bluetooth DLC interface tool is not needed, but it can speed up engine speed related vibration diagnosis. Adjust the shifting speeds to match when you shift your transmission in the Settings Screen and you are ready to begin vibration diagnosis.
  4. Hybrid-Electric Vehicle Transmissions – A Bluetooth DLC interface tool is needed to diagnose engine speed related vibrations. Diagnosing tire speed and driveshaft speed related vibrations do not require a Bluetooth DLC interface tool.
  5. Class 4-8 Medium-Duty (MD) and Heavy-Duty (HD) Truck Transmissions – A Bluetooth DLC interface tool is needed to diagnose engine speed related vibrations. Diagnosing tire speed and driveshaft speed related vibrations do not require a Bluetooth DLC interface tool.

**Subaru and Nissan use CVT transmissions in most of their vehicles. Almost all other vehicle manufacturers use a CVT in one or more of their vehicles. A CVT does not shift like a traditional transmission; however, many CVT vehicles use paddle shifters on the steering wheel to give the driver the illusion of actually shifting.

Optional Bluetooth Adapters

Three High Quality and Durable Adapters are Supported

PLX Devices KIWI 3

The PLX KIWI 3 works with Android and Apple iOS. The NVH app supports the KIWI 3 with the following vehicle Data Link Connectors (DLC) and communication protocols:

  • Android and Apple – Passenger cars and light trucks with OBD-II since 1996 (16-pin DLC)
  • Android and Apple – Volvo and Mack Heavy Duty trucks since 2013 (16-pin DLC J1939 250kbps)
  • Android and Apple – Class 4-8 Medium Duty and Heavy Duty trucks since 2001 (9-pin DLC J1939 250kbps. NOTICE: Support for 500kbps is coming soon.

Nexiq Blue-Link Mini

The Nexiq Blue-Link Mini works with Android and Apple iOS. The NVH app supports the Blue-Link Mini with the following vehicle Data Link Connectors (DLC) and communication protocols:

  • Android and Apple – Class 4-8 Medium Duty and Heavy Duty trucks since 2001 (Black or Green 9-pin DLC J1939 250kbps. NOTICE: Support for 500kbps is coming soon.

GoPoint Technology BT1A

NOTICE: July 27 2016. The GoPoint Bluetooth OBDII Adapter is “Out of Stock” on GoPointTech.com. We have been unable to contact GoPoint to determine when they will be available again.

The GoPoint Technology BT1A works with Android and Apple iOS. The NVH app supports the BT1A with the following vehicle Data Link Connectors (DLC) and communication protocols:

  • Android and Apple – Passenger cars and light trucks with OBD-II since 1996 (16-pin DLC)
  • Android and Apple – Volvo and Mack Heavy Duty trucks since 2013 (16-pin DLC J1939 250kbps)
  • Apple only – Class 4-8 Medium Duty and Heavy Duty trucks since 2001 (9-pin DLC J1939 250kbps-500kbps)