DA no longer functioning

[ralmo94]

You followed this section?
Tested for valid connection as in photo?


Using the APU1 for Logging Only

As you have seen above, the APU1 is a versatile device that can be used for many purposes. However TunerPro is the only software that knows how to use any of the advanced features of the APU1, so it is necessary to put the APU1 into a “pass through” mode when using other software. In these cases, the APU1 functions solely as an ALDL logging interface.

Make sure the APU1 is connected to your PC and has a COM port between 1 and 8. It will be necessary for you to know which COM port the APU1 is using to configure it properly.
Make sure the outer horizontal switch is ‘away from the USB port’ position. (Passthrough mode, identical to ALDU1. Other position is APU1 mode for TunerPro.) Legacy software will NOT be able to connect to the vehicle unless this switch is set correctly!!!
We’re going to walk through the TunerPro RT configuration steps to use this mode. Your APU1 will NOT be recognized by TunerPro RT software in this mode. If you’re not using TunerPro, skip to step 9.
If the APU1 is recognized by software at startup, try moving the mode selection switch again. Verify the the USB is being recognized correctly.
Next, make double check TunerPro’s configuration for logging. Start by going to Tools…Preferences
Next, Tab over to the Data Acq. /Emulation tab. (red arrow) Make sure that “Use Plug-in” is selected for Interface Type. Make sure “TunerPro Data Acquisition I/O Interface” is selected under the component drop down box.
Then click the “Configure Plug-in Component” box (green arrow).
Make sure that “Standard Serial” is selected (green arrow) and the COM port of your APU1 is selected (blue arrow)
If you are NOT using TunerPro RT, you should be able to start your software of choice and configure it to use the COM port of your APU1 (COM2 in this example)
If you have trouble connecting, check the other switch on the APU1. Older applications that use 160baud require the in/up ”10k across A-B” setting. Later TPI, LTI and TBI applications use 8192 baud which requires the switch to be in the out/center =”open between A-B” position. If you just want to check codes, the down position will cause codes to flash.