Sponsored By: Presented by:

Steve Garrett

ATRA

Today’s Presentation Sponsored By:

Lwiggins@ATRA.com Connections

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THANKS A Special Thanks To Drew Technologies for the

information and help provided for this presentation.

What is J2534?

Getting Started The folks at Drew Technologies have been fantastic to work

with and they are very willing to share their information with the transmission repair industry. 3 processes are used for reprograming, Direct, Remote and Pass Thru. The process used by most of the independent repair industry is known as J-2534, J-2534-1 or Pass thru. To reprogram a vehicle you will need to buy some equipment such as cables and a J-2534, J-2534-1 pass thru device or possess a scan tool with pass thru capabilities. So you may be wondering what does J-2534 mean? J-2534 is an SAE (society of automotive engineers) standard that was developed to allow an interface between a manufactures calibration web site and the vehicle computer you are attempting to reprogram. This typically requires a special module or other pass thru device that meets the J-2534 standard to interface a PC/Laptop with the vehicle.

Getting Started Using a laptop or PC, and a hardwired high

speed connection to the internet you can reprogram virtually any OBD II vehicle on the market. Updated software calibrations are accessed through factory web sites based on the brand of vehicle you are working on. Generally there is a charge for loading the software and you will have several different price points depending on how much recalibration work you wish to perform.

J2534 Devices

Precautions There are precautions that also must be followed to prevent problems

or damage to the vehicle computer you are attempting to reprogram. They include:

Use a hard wired connection to the internet and to the vehicle. While you can reprogram using wireless connections, far less problems occur when using hard wired connections.

Install a battery maintainer when programing. A battery maintainer is different than a battery charger. If you choose to use a charger, the battery charger that you are using should produce very little AC ripple so make sure your charger is capable of doing the job. An alternate battery source is essential as some vehicles take a long time for the calibration to load and the battery must not go dead during the process or problems may arise.

Make sure the operating system on your PC is compatible with the reprograming pass thru equipment. Make sure your PC or laptop meets the minimum specifications required by the manufacture.

Precautions Your anti-virus software, fire wall, pop up blockers and screen

savers on your PC should be disabled when programing.

Never turn off the key, start the engine, unhook the battery or disconnect the DLC connector while programing is in process or damage to the control module may occur.

After reprograming the ECM or TCM it may be necessary to relearn the idle and shift adapts.

Make sure all accessories are turned off before starting the reprograming process.

Do not run any other applications other than the J-2534 application on your PC or Laptop.

The emergency brake must be set to enable programing on some vehicles so set the emergency brake on all vehicles just to be safe.

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