Dakota Digital BIM-01-02 error 8?

[Johnnyb]

I have my DD setup connected to Edelbrock Proflo 4 with a similar cable except for I had to make my own cable because I have an older DD that uses a 1/8 inch phone jack. I'm just adding this because my homemade cable works perfect. It seems unlikely that the cable would work sometimes and not others.

 

[1buckeyefan1]

Well, hope you get it figured out!

On the power note, where is your power coming from to your RTX?

Maybe just try a power wire straight to the battery and test if it happens?

I used the constant 12v from radio feed on my painless harness. It was nearby and the RTX claimed it could be shared since a very low draw. I can change this.

For switched power, I used an extra switched feed from the painless harness. I originally had it ran over toy cluster area for a voltmeter in my original setup.

I agree, I'm going to isolate my power and ground to the battery when I'm back in the shop. I really hope it's something this easy, but I'm afraid it's a software handshake issue that DD will need to help me debug.

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[ba123]

Could be caused by the cut out from ignition on the switched power. I think I have mine set to switched power that doesn't cut during ignition. Not sure if that matters but hats the one I'd try and bypass.

 

[1buckeyefan1]

test the cable, don't just buy a new one.

DD support is outstanding and they stand behind their products. I've gotten fantastic support from them with my oddball setup.

Nothing but top notch and made me glad I bought so much pricey stuff from them.

Cable tested. It was brand new from Summit, but tests out fine. Yeah, TJ from Dakota support has been responsive, but seems to be bouncing ideas back & forth from DD engineering and they're claiming error '8' doesn't really mean anything other than the BIM is confused on the signal.

If all you want is trans position why not just get the GSS-3000 and connect the one wire on the RTX module. Then you will also have a proper neutral safety and reverse light switch.

I forgot the other reason I went with the BIM-01-02 for ECU data.. i also want the RPM from the ECU. But I did glance at the GSS-3000 and it looks like I would have to add a DD sending unit at the transmission. Unfortunately i'm using the Explorer 4R70W electronics and it has the Ford sending unit. But most importantly, I already have the BIM-01-02 already purchased and should be able to interface to the ECU data since it's (in theory) readily available.

 

[1buckeyefan1]

Could be caused by the cut out from ignition on the switched power. I think I have mine set to switched power that doesn't cut during ignition. Not sure if that matters but hats the one I'd try and bypass.

So I tried a few new tests today (both suggested by TJ at DD).

1.) I tested the voltage in both the bad/8 error state as well as in the good/connected/F state. voltage test out the same in both. similar to your theory, they thought it might be a 'brownout' condition confusing the BIM. No difference unfortunately.

2.) in order to isolate power & grounds, I put together a separate setup on a different battery. added a switch to turn power on/off. No difference as well.

I'm at a loss now. I fully expect that i'm going to send my RTX & BIM units in now for troubleshooting. I was really hoping it was something in my wiring. Knowing my luck, they're both going to test out ok on their end and they're going to blame my custom (EFIGuy) tune.

 

[ba123]

Honestly, worst case scenario is that you wished you sent it in sooner or it rules out that being the problem.

Either way you figure it out.

Doesn't mean you'll be happy with the result, but should get to the bottom of it.

Another though if they come back OK, is to hook them up to another ecu and see if OK. Wonder if EFI guy could help you with that if the units come back OK.

 

[1buckeyefan1]

Honestly, worst case scenario is that you wished you sent it in sooner or it rules out that being the problem.

Either way you figure it out.

Doesn't mean you'll be happy with the result, but should get to the bottom of it.

Another though if they come back OK, is to hook them up to another ecu and see if OK. Wonder if EFI guy could help you with that if the units come back OK.

Well, good news today. After exhanging a week's worth of emails with DD tech support i finally got frustrated and spent another $125 on amazon to have a new BIM-01-02 shipped to me overnight. Yeah, it's the curse of the Amazon prime button..

Well, it paid off. I received a newer build this time and my error '8' hasn't popped up yet. I'm going to drive it around a bit, but i'm cautiously optimistic I simply had a bad BIM module.

DD support (TJ) has been very responsive, but just had me doing more tests and exchanging calls/emails. I had pretty much narrowed it down to either the BIM or control module..

We'll see if I get refunded for the 2nd BIM. But glad to have the problem resolved for now!

I attached pictures of the BIM modules. The one with the QR code is the newer build.. but had the same v2.2 firmware on them.

 

[ba123]

That's great!

Sorry if you said at some point but where did you buy the first one from? And what credit card did you use? Some cards extend your return period.

 

[1buckeyefan1]

That's great!

Sorry if you said at some point but where did you buy the first one from? And what credit card did you use? Some cards extend your return period.

I convinced DD to exchange it for a new one. I'll have to sell it now, but much more marketable than a broken one

Thanks for your support! This forum is full of pretty awesome people.

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[ba123]

Can't you just return the Amazon one?