pkh34

Well, I'm getting a conflicting report from DEI support on this topic. I have installed PKH34's before, for the specific vehicle, and have always installed a DEI product using D2D, in that scenario. I have a PKH34 that is not powering up(no LED) or programming, using a D2D cable for power, ground, and GWR. The person at tech support, I'm not sure he is fimiliar with the specific product, states that the module needs power, ground, GWR from W2W even though it's using D2D. I have not experienced that before. His resolution is totally in-consistent with the manual and the design, for using D2D.

My question is, has anyone else been using PKH34's in D2D mode, without getting power, ground, and GWR from W2W?

Thanks for the input, Twelvoltz.

Update: It appears DEI has revisioned the PKH34. It no longer has traces on the module board for power from the D2D cable. Why this was done, I'm can only speculate. A patent license rearing it's ugly head again? However, it will still operate in "secure mode", when using the D2D protocol. I confirmed this. Due to the custom installation having been already completed, I modified the module rather than rewire it. I'll post the modded picture, but I doubt anyone will use it. There really is no need to, since you'll be aware of it before hand. Obviously, this only applies to those insisting on using D2D, instead of W2W for power.

Also, I'm putting together the pictures and notes of the total installation, for the site. This will hopefully help others with a conception of a R/S installation.

Update: My speculation was correct. Since DEI has purchased bypass kit companies, all the patents owned by others are now being enforced. I knew this was happening with some product lines. However, now all product lines, new or old, have been redesigned to circumvent the patent issue. Loosely, the patent(AutoMobility of Canada) issue regards how a bypass device is integrated/controlled with a R/S.

Here is the modified PKH34. As stated above, this was solely performed, because the custom installation was already completed using the D2D interface. It will not be necessary for a normal installation, if +12v power (RED wire) to molex A is applied. The GROUND (BLACK wire) and "secure mode" activation (WHITE wire) are still aquired through molex B (D2D interface). Obviously, the BROWN wire (un-secured activation) in molex A was not used, for this installation. This application is displayed in the second photo.

• A = 10-pin harness molex.
• B = 4-pin harness molex (D2D interface).

The orange circles highlight the molex B solder-joints to the board, for which there are no traces. Since DEI has revisioned the board, the module can no longer aquire +12v power (BLUE wire) from molex B (D2D interface). A simple jumper (BLUE/WHITE wire) was soldered, from molex B to molex A, to circumvent this. The RED wire in molex B was never implemented in the modules design. Finally, the following photo shows the module placed back into it's environment (2002 Honda CRV).