I have had trouble with this TC since day 1. It has never worked correctly, well for no more than a few mins.

My passenger front ABS signal is not being picked up. I have changed it to a newer one, with no difference. The ABS diag says nothing wrong, and to test if that was working, I disconnected the sensor and went for a drive. With in a few yards the ABS light came on and signalled no passenger front signal. So this means the diag is working and that a signal is reaching it from the front passenger ABS.

This means that the TC is not getting the signal from the ABS unit. Which means either,

 

A: Bad wiring.

B: Bad TC unit.

 

I am no genius with wireing but all the others are working and I have checked it over and over.

 

Any one else have any ideas? Is there any way to test the TC box?

 

Im desperate

 

CheerZ

Stuart

 

Just tested continuity from the wireing from the plug where it goes into the TC box to the socket where all the ABS wires go into the ABS unit in the back, and they are all fine.

Does anyone have a TC box that I can just swap over for a few mins?

 

Stuart

Stuart, Is there anyone near you that you could swap the TC box with that way you can check the wiring

 

Tim

Hehehe, I just asked that. Hehehe.

"Dont know", is the short answer. And "I have no idea" is the long answer.

 

 

Stuart

Stuart,

 

When I installed mine it came with a photocopied instruction sheet.

In the section on connecting up the wires to the ABS it says to connect one to a brown wire. On my Z there were 2 brown wires!

I took a guess and picked one and it worked first time but maybe it's the same on yours and you picked the wrong one?

 

Chris.

Where are you Stuart, you are welcome to try mine but you are probably miles away from Harrogate/Leeds area.

Stu,

Have you double checked the config of the TC box itself ?

Yes. I used the one I got with it and that one that guy made. I have configured it. I have actually had it working, but it will work for anything between 2mins and 2hours, the dropped signal from the ABS feks it all up, it thinks Im wheel spinning all the time and wont go over the preset rev limit, which is 1500 revs at the moment.

The only thing I can think of now is the TC box, becuase of the following reasons

 

1. The ABS diag reports nothing wrong with the ABS.

2. Tested ABS diag by disconnecting troubled ABS sensor, and it said, no pulse found on that wheel.

3. The ABS works on both fronts.

4. The wireing from the pins in the TC plug all the way back to the pins on the ABS plug have continuity.

 

I have emailed Racelogic asking them for advice, cos I am out of ideas now, but still throw me yours.

 

Stuart

UPDATE

I have also checked the resitance of every sensor from the ABS box, and all where within the parameters.

 

There is nothing wrong with my ABS system

Have you tried swapping the connectors around to see if it stays with a specific wheel or a channel on the TC ?

Could do that but it wont fit very well. All the brackets that put the wire around the suspention will be the wrong way round.

Uh ?

 

No, I meant where they go into the TC box (or where they go into the ABS controller)

I got ya. Plug it like change the wiring round of the two fronts? Got you.

 

No I will try that tomorrow

 

RIGHT PISSED OFF NOW.

The front passenger signal started working but one of the rears stopped. Then 5 mins later, the front one stopped working again. So according to my TC 2 sensors dont work. By my ABS says all is well. FEKED OFF.

 

Stuart

 

How good is your soldering and crimping ?

Its good. Like I said, I tested from the TC socket from one end, all the way to the ABS plug after the wires have been joined. All 4 where good.

 

Thanks for your help so far Andy.

Something just sounds a bit iffy to me. Could be the TC box of course, but the erratic nature sounds a bit connection orientated. How did you join the TC wires into the ABS ? Did you open up the blue plug, stripback some insulation and make a good soldered joint, or did you use the nasty blue bodge-it connectors that Halfords and the like sell ? Also that cable is screened - not sure why becuase neither end is earthed, but could it be picking up noise from something that is interferring with the signal (prob not becuase that would show up as spikes and affect all four signals)

I soldered the wires on to the ABS. Im not the best at it, but there was connected. My dad checked it and tidied it up. I will unsolder them tomorrow and try again. Did you take off the Blue ABS connector to get some more slack? If so how did you do it?

Whats the best way? I my dad has a load of crimping stuff, is that the best way?

 

Get my through this Andy and I'll get you a bear.

 

Stuart

 

All the ones I've done I took the blue plug apart and made the connections inside the plug casing (stripped back insulation, soldered and reinsulated). This was Tim's "in progress"

I also crimp and solder the plug pins for a good secure connection - takes ages but no problems yet.

Here I go again.

I am disconnecting it all from the ABS and now I am starting again from stratch. Tell you how it goes.

 

Stuart

Right Andy you there?

I changed all my wiring, redid it all. The rear ABS signal drop was from a split wire I did yesterday and is working fine.

I now have plugs on the wires, crimpped on my the right tool.

I plugged all the wires back to where I had it before, and went for a test drive and led when the dial was on wet, was saying no signal, there was one but it was very intermittent. Now that the wires are all just plugs I changed them round, so all of them where in a different socket. Went for a drive and turned to slip dial to see what signal was being dropped. It was only dropping on the wet again, which is now a different wheel.

 

Any ideas? All I can think off it the wire from the TC box from the front to the back to where the ABS is, is at fault or the TC box.

 

Any idea what next?

 

 

Stuart

 

So you are saying that the fault stays with a channel on the box or with a wire back to the ABS ? I think you were saying the fault follows the wire, in which case you need to work out which one and fault find that wire.

 

Have you used the DOS based monitoring s/w ? I think you have because I vagely remmebr you posting a screen grab in the past. That make it very easy to see if you have an intermittant or noise problem, rather than relying on the flashing light.

Yes. It says with the same channel. Always wheel 0, which is shown when on the wet setting.

I tested the 4 wires that goes from the TC to the ABS and all of them are fine.

I didnt do a screen grab but I posted my log from a drive of mine. www.300zx.co.uk/rides/SRRAE/stu.log

If you have the prog handy you can see. Wheel 0 (Red line) is not getting a clear signal, it loses it for a fraction of a second the gets it then loses it, ect. In the book is says that it is what a faulty ABS sensor looks like, but no matter which way round its wired up it always says wheel 0 is the problem. Originally it was the front left, now its one of the rear ones plugged into wheel 0 and now its saying that is faulty.

 

Stuart

 

 

Sorry the log link is http://www.300zx.co.uk/rides/srrae/stu.log

 

[This message has been edited by SRRAE (edited 13-04-2002).]

Just discovered than running the DOS application under XP causes the machine to crash - bugger !

 

Ill try to get a screen grab some how.