S550 swap to T56 Tranny - NO Reverse Light, Sensors, Camera and Cruise Control work

[Pete Yoanidis]

Does anyone know if there's a harness that takes care of Reverse Issues? Bowler says straight up theirs won't fix it.

These suppliers say the "cruise control" won't work after you pry it out of them but that's it. I feel betrayed.

I'm pissed not one supplier of these Swap Kits mentions these issues. It's good to have a strong tranny but the electronics are equally important to me.

The Dark Horse and Mach 1 have Tremec trannys I wonder if their harness will work?

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[Ruiner46]

Lots of information in the transmission and drivetrain forum if you search... There are issues if your car has the rev match feature. For older S550's, I can tell you that cruise works fine with a tune change to correct the ECU's gear ratios. Reverse/camera should work without a harness just by connecting the reverse sensor on the transmission to the correct wires in the OEM wiring harness. If you are making tune changes, then the only reason to get any harness at all is to use the T56 reverse lockout feature. If you delete that, you don't need a harness.

 

[Pete Yoanidis]

Thanks for your reply. You're the only one who says it should work.
I've talked with D&D racing, Da Silva Racing, Lethal Performance, LMR, Bowler Performance and all say what I posted no fix. All you get is reverse lockout and speedometer reading.

If you could please send me a link to the solution I'd be very grateful, as I have not found any real credible info out there.

 

[Ruiner46]

I don't know what year your car is. Cars with rev matching need a sensor in the transmission that doesn't exist in a T56. I don't know much about that. My only experience is 15-17. For those, you just hook up the reverse sensor and put the right gear ratios and OSS pulse count per rev in the tune. If you search my name in the "Installed a Tremec Magnum XL in my S550" thread, you'll find all the information you need. Lots of good info in there, so do some reading.

 

[JTM88]

I thought I saw somewhere that a T56 was released that worked with the 2019+ rev matching, but I can’t find it anywhere.

 

[Pete Yoanidis]

I don't know what year your car is. Cars with rev matching need a sensor in the transmission that doesn't exist in a T56. I don't know much about that. My only experience is 15-17. For those, you just hook up the reverse sensor and put the right gear ratios and OSS pulse count per rev in the tune. If you search my name in the "Installed a Tremec Magnum XL in my S550" thread, you'll find all the information you need. Lots of good info in there, so do some reading.

I'm gonna start reading thanks

 

[Pete Yoanidis]

I don't know what year your car is. Cars with rev matching need a sensor in the transmission that doesn't exist in a T56. I don't know much about that. My only experience is 15-17. For those, you just hook up the reverse sensor and put the right gear ratios and OSS pulse count per rev in the tune. If you search my name in the "Installed a Tremec Magnum XL in my S550" thread, you'll find all the information you need. Lots of good info in there, so do some reading.

Well, I read a lot of your posts re: T56 you and others are at a much higher level than I. You make it sound so simple however I'm old school. I can't work without a wiring schematic.
My car is 2017 GT 5.0 ragtop. First off what kind of programmer are you using? I got what came with my Edelbrock supercharger a SCT tuner it doesn't do much.
At this point I can't drive the car because of P0315 code. It's a vicious cycle can't relearn the crank because of the code, clear the code, start relearn process codes back.
On my first attempt to program, the codes were P0720 & 22 OSS figured it was the 2 boxes provided in the kit. I surmised one of the boxes was defective. But those codes disappeared and now it's P0315 only.

 

[Ruiner46]

Ok, let's start from the beginning. Your T56 is already installed? What did you do with the wiring harnesses that were plugged into the old transmission? There should be a two wire connector that needs to be wired to the T56 reverse sensor. There's a 3 wire connector and that is the OSS. Cap the power wire and don't use it.

Here's an image of the wiring showing the reverse sensor. The wires should be Blue and Gray/Violet.

Here's the page with the OSS sensor.

It connects to the PCM on this page

The Violet/Green wire is the power. Don't use it, just cap it off. Only use ground and the OSS signal to the T56 sensor.

I use HPTuners for the tune changes. PCMTec will also work I think. I don't know anything about the SCT, but if someone knows how to translate the table names in HPTuners to SCT, then I can give you the names that you need to change. If you can't change the pulse count in the tune, then you will have OSS problems. You can fix that with the Bowler harness, but no harness will let you fix the gear ratio changes necessary to get cruise control working.

 

[Pete Yoanidis]

Thank you!! This juicy.
Yes T56 is in, I used the BR/GR wire to the ERA provided. No other wires used. (see attached drawing came with kit)
For now I need to study your drawings and initiate first. I was on HP Tuners site hard to navigate for me, it looks like it for professionals who know a lot more than I. But interested if you think it's something beneficial for me with limited experience.
I can't thank you enough!!

 

[Pete Yoanidis]

Thank you!! This juicy.
Yes T56 is in, I used the BR/GR wire to the ERA provided. No other wires used. (see attached drawing came with kit)
For now I need to study your drawings and initiate first. I was on HP Tuners site hard to navigate for me, it looks like it for professionals who know a lot more than I. But interested if you think it's something beneficial for me with limited experience.
I can't thank you enough!!

I only have a 3 wire factory connector, that's it.
You mentioned a 2 wire connection for T56 reverse sensor, are you referring on the T56 or a factory plug?

 

[Pete Yoanidis]

Thank you!! This juicy.
Yes T56 is in, I used the BR/GR wire to the ERA provided. No other wires used. (see attached drawing came with kit)
For now I need to study your drawings and initiate first. I was on HP Tuners site hard to navigate for me, it looks like it for professionals who know a lot more than I. But interested if you think it's something beneficial for me with limited experience.
I can't thank you enough!!

 

[Pete Yoanidis]

I don't want to muddy the waters for that matter, annoy you.
I marked up this drawing and sent to the kit supplier to connect the dots. That's when I got a call I was only getting a speedo reading and reverse lockout from this kit.

 

[Ruiner46]

Ok, whatever you do, don't change the OSS 3 wire connection. It looks like you're proposing hooking it up to the T56 reverse switch. Definitely don't do that.

Find the factory 2 wire reverse connector I mentioned. It's a factory Ford connection and it must be dangling under there somewhere. Should be a solid blue wire, and a gray/violet. Connect that to the T56 reverse switch and you should get reverse lights and the reverse camera back.

Cruise control will still require tune changes if you want to get it working.

 

[Pete Yoanidis]

Okay thank you.
I will look for the 2 wire Factory connector, but I'm certain it's not there. Only the 3 wire plug was connected to MT82. Did you happen to look at the schematic I sent? Does it make any sense?

 

[Ruiner46]

I did look at the schematic and it makes sense for having an Abbott ERA and some kind of reverse lockout controller. Nothing in that schematic is used for telling the Ford PCM when it's in reverse. All it does is correct the pulse count from the T56 output shaft sensor to the Ford PCM. Everything else is for controlling the reverse lockout on the T56.

Your car has to have the two pin connector somewhere, or at least the wiring. It was there from the factory. Should have come from a big wire harness on the passenger side I think but I can't remember, it's been years since I did all this work. The wiring diagram I posted is from the 2017 factory service manual.

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