BHW stand alone cruise control is kicking my tail

PickleRick

Veteran Member
Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
I have the hanswerk cruise controls. Running the fast forward universal VSS sensor. Have my adjustable vss signal box dialed in to within 2 or 3 mph at 50mph.


I'm running the factory Passat gauge cluster so it has a vss input from my universal vss to run the speedometer and an output feeding the ECU.

My clutch feed is wired directly to 12v constant to ECU. My brake switch feeds ground at rest and 12v st brake to ECU.

I've double and triple checked my cruise control wiring.

In vss I can see when I turn the cruise control on, it also lights up the dash crusie light. It even changes the block when I turn it on or press the brake whike on..

It does however throw a soft cel when I turn on the cruise control and cruise control light. It says something along lines of signal not recognizing.

Any tips for how to get this functional? Thank ahead of time.
 

PickleRick

Veteran Member
Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
I'm getting codes p1696 and p0568

Switches on I get 11101011. I'm pretty sure the 1110"1"011 means that cruise is activated in my ECU settings. The bold one replaced with a zero would mean it is not activated

When I press brake i get 11101000
My cruise control status when turned on is 00000011

I'm still learning how to use Ross tech outside of just torsion value
 
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Straypoet

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Jun 17, 2020
Location
Florida
TDI
BHW 2.0, soon to be in my Wrangler.
I am not there yet on my swap, but wishing you the best in search for a solution. I would also like to use cruise.
 

PickleRick

Veteran Member
Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
Plan on putting it on jack stands to verify im reading MPH on 006 this weekend.
 

Braddman

Well-known member
Joined
Jun 25, 2019
Location
Barrie, Ontario
TDI
2006 Audi A4 BHW 2.0 TDI, 2005 Toyota Tacoma BHW TDI Swap
Has your tuner set the tune for a manual transmission and entered the correct gear ratios. I’m pretty sure that is a requirement so the ECU know which gear you are in by comparing RPM and VSS.
 

PickleRick

Veteran Member
Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
I will double check. David at fast-forward is pretty good and while I did recently change to 4.30 gears, when I ordered everything I thought I had 4.30 gears instead of the 4.10s I found in there.
 

jimbote

Certified Volkswagen Nut
Joined
Jul 10, 2006
Location
spiral arm, milky way (aka central NC)
TDI
Tacoma 4x4 converted to TDI
Neither of the brake switch signals should be going to ground. One is normally open one is normally closed. At rest, one should see 12 volts one should see open. When you press the brake they should reverse.
 

PickleRick

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Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
The cruise control swtich wiring on my set up may differ a bit from the Passat swtich. I'd rather the issue be a wiring one rather than my gear ratios being more than 10% off thus keeping the ECU from enabling my cruise.


I'm swapping transmissions tomorrow if rain holds out but I'll get it on jack stands this weekend and see what 006 is reading for mph.
 

Straypoet

Veteran Member
Joined
Jun 17, 2020
Location
Florida
TDI
BHW 2.0, soon to be in my Wrangler.
wish you the best. Hopefully not needing a new flash. My ECM is just immo off, so it still thinks it’s an auto. If you have to have a ratios flashed I will be really disappointed.
 

PickleRick

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Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
I have confidence in David as I gave him the transmission code and gear ratios as well as tire sizes when I filled out the request form.
But at the same time I have confidence that I wired it according to the guide I posted up properly the first time lol. The first time I've ever hoped the issue was my fault!

I don't rev hang between gears and she's peppy off the line so I know it's got the added horse power tune and knows I'm running a 5 speed.


I'd swap ecus from my other Passat but I am near positive the dvz rations are way off from my r150f
At 70 mph I'm maybe 2800 rpms currently.
 

Braddman

Well-known member
Joined
Jun 25, 2019
Location
Barrie, Ontario
TDI
2006 Audi A4 BHW 2.0 TDI, 2005 Toyota Tacoma BHW TDI Swap

PickleRick

Veteran Member
Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
I'm not sure what their logic converter is so I'm going to say no on that. Also not using their can2dash as I'm running the Passat TDI dash cluster.

The brake light feeds directly to the cc controller which feeds the ECU in my application (I think thats what you're asking)


Do you happen to know what order all the 0110011 should be for it to be engaged? I'll run this before I screw with pulling wiring apart
 

PickleRick

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Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
Shot of the cels the crusie control sets off. Also the cruise control 10111 with brake in rest position (I think the universal switch is wired a little different from oem but I'm getting the 011 I'm supposed to. The other 1s however?
 
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Braddman

Well-known member
Joined
Jun 25, 2019
Location
Barrie, Ontario
TDI
2006 Audi A4 BHW 2.0 TDI, 2005 Toyota Tacoma BHW TDI Swap
I do not have cruise control setup on my BHW Tacoma yet and I’m currently swapping it to a 3L CPNB TDI but I ran some tests on my BHW 2006 Audi A4 while reading measuring block 006 data fields 2, 4.

Cruise switched off, all pedals released 00001000, 00000000
Cruise switched off, clutch pedal pressed 00001100, 000000000
Cruise switched off, brake pedal pressed 00001011, 000000000
Cruise switched on 00101000, 100000001
Accel pressed, cruise switched on but not enabled 00101000, 10001001
Decel pressed, cruise switched on but not enabled 00101000, 10000101
Set pressed, cruise switched on but not enabled 00101000, 10010001
Resume pressed, cruise switched on but not enabled 00101000, 10100001
Cancel pressed, cruise switched on but not enabled 00101000, 10000011
For cruise control to operate values must be 00101000 10000001 clutch, brake pedals released, cancel button released and vehicle speed is at least 25km/h.
Cruise control operating 01101000, 10000001
Cruise control operating and overriding cruise control set speed using accelerator pedal 10101000, 10000001

On the Audi A4 accel, decel, cancel cannot physically be pressed when cruise is switch off and if set is pressed while cruise is switch off no values will change. If cancel button is pressed, clutch, brake pedals are pressed or manual transmission is pulled out of gear without releasing the clutch while cruise is enabled, cruise will disable.

Now I understand what is likely triggering your 2 fault codes. Notice in the fault description Bin. Bits: 11001000 and during my tests I either had 10001000 or 01001000. I am not sure yet what would cause that though.

According to my test above, the normally open and normally closed wires on your brake switch need to be reversed. That way, data field 2 reads 00001000 when the brake pedal is released.

I also noticed when you tried enabling cruise, data field 4 read 00000011 and not 10000001 that would make me think cruise cancel is enabled either due to the fault code or a signal input to the ECU because 00000010 means cancel cruise.
 

PickleRick

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Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress


I did verify my speedometer is reading in 006. @62km/h at @40 mph.

This is my cruise control turned on but not pressing anything.


Sadly I'm not getting any numbers changing when hit the set or accel buttons.
 

PickleRick

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Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
I think David pointed out the issue to me. There is an issue with the wiring. Looking at field 4 I shouldn't have it ending in 11. It appears that on and cancel are being held simultaneously.

Looking at the upper part of the wiring schematic you'll see yellow and green are wired together, this activated pins 44 and 88 on the ECU.


I'm not sure how I fix this issue but I think it is the issue and why it's saying I have a constant pedal override
 

PickleRick

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Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
The way my set up is wired is a bit different tham the Passat since it's universal and many vehicles don't have dual brake switches I'm going to try to source them one by one, hopefully with your guys help to get this solved and an easy diy for others to figure reference. These are the main pins I'm aware of for cruise control on the Passat ECU.
T94
Pin 20 BK/W CC input 12v on. Open off. 000001
Pin 44 R/GY CC input 12 on. Open off. 000011
Pin 88 R/Y CC input SET 12v on. Open off.000100
Pin 21 BL CC RESUME 12v on. Open off. 001000
Pin 90 BR vss input. verified
Pin 43 Y clutch switch open when clutch pressed 12v at rest. Wire to 12v key to disabled. Verified
Pin 87 BK/R brake light input gnd at rest 12v pressed.
Verified
Pin 65 W/R ????
 
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PickleRick

Veteran Member
Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
I have verified my controller is getting 12v power and ground. I verified that when the controller is turned on she is feeding 12v out

When I hit resume or set(momentary switches) I put out 12v to each.

Now I begin tracing wiring from switch to my ECU just in case there is a wiring discrepancy. Posting not only for others interested in this but for my own check down proposes.
 

PickleRick

Veteran Member
Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
Measuring blocks on truck left column is value 2 right is volume 4

Off 00001000 00000010
On 0010100 00000011
Set 00101000 00000111
Resume 00101000 00001011
Brake applied 00101011 00000011


I wasn't getting a change in set/on yesterday or maybe I was exhausted and didn't notice it.
 

PickleRick

Veteran Member
Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
Now to the next vehicle. 2005 Passat. Same stage 2 tune. 5 speed conversion (I have a few BHW motors btw) with WORKING crusie control

Off 00001100 00000010
On 00101100 00000011
Set. Same. 00000111
Resume. same. 00001011
 

PickleRick

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Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
Looks like my clutch signal is an issues comparing the two. I have a bad connection between my 12v key and clutch feed wire. It should see 12v at rest and open circuit when pressed.

Warning: I only use crusie on the highway and have always hit the brakes before the clutch when I had to slow down in an emergency brake situation. When driving a proper distance behind traffic in normal situations I use my set/resume buttons to slow down and speed up. I don't see the point in hitting the clutch before the brakes but if you do or are likely to do so make sure you wire a micro switch onto your clutch pedal or you'll over rev the motor when you press the clutch on on the highway.

Otherwise you can wire your clutch wire directly to a switched 12v power t94 pin 43 Y.



Pin 90 needs a 5 to 12v square wave vss signal. I used the Passat cluster in my vehicle so that is feeding ECU. If you do not have the Passat cluster you'll need some sort of vss signal. I used the fast forward universal vss with the tachotronic converter to run my Passat cluster in the Toyota. It picks up on the 4 flange bolts for the rear axle pinion flange. It is adjustable so tire size changes/axle ratio changes can be dialed in.

The ECU however needs pre input gear ratios so it has expected rpms/mph. Any variation over about 10% makes her unhappy and isn't supposed to engage.
 
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