Thread: CDL in D2

Originally Posted by biggin

Forgive me if I am repeating what others have already stated, but I'm just trying to get this clear in my own head.

This is how I understand it:

With blue wire NOT cut;
- Engaging the cdl with the motor running will allow the TC to operate as normal with no other amigoes lit.
- Engaging the cdl with motor off will cause the TC to NOT operate and ABS and HDC to operate at reduced parameters, when the motor is eventually started, and amigoes will be lit.

With the blue wire cut;
- This will disconnect the TC permanently, whether the cdl is engaged or not, and will eliminate the amigo lights from coming on.

With the blue wire cut and a switch installed across it;
- This is used to open the blue wire circuit when starting the vehicle when the cdl is engaged, thereby allowing the TC to operate normally.
I guess this is to prevent the need to engage and disengage the cdl each time the motor is turned on and off.
If the switch is a normally closed pushbutton type, it would be necessary to keep the switch pushed in while starting the vehicle then letting it go when it has started.

Sorry if I have confused the issue but I am in the process of installing the cdl internals and want to make sure I have got this right.

My goal is to be able to run CDL and TC together without having to get under the car each time I stop, or have irritating dash lights come up.

Please let me know if I am close to the mark here (or NOT).

Cheers,
biggin.

Hi Biggin,
I am about to install my ashcrofts CDL lever and am wondering the same, thing, personally I don't want to cut any wires, so my understanding is:

- Turn Car on, start motor, then engage CDL.

- When car comes to a stop before turning engine off disengage CDL, then turn car off.

This way you get no warning lights or the like. Happy to be corrected, like biggin I want to ensure I get it right.

Thanks

I don't know Jaybee,
Having read this thread again, it seems for my 2002 D2 I must cut the wire to retain TC. It may be different for pre 2000.
I wish to retain TC, but still am not 100% sure.
Hope someone here can set me straight. New CDL is now installed, but I'm to scared to do anything with it in case the TC disappears.
Sorry for harping on.
cheers,
biggin

Ok here it is in the simplest way I can think off.............

If you fit a CDL, and DO NOT cut the wire, then start the car WITH the CDL ENGAGED, the TC is DISENGAGED 100%, You retain ABS and HDC but at reduced parameters and have the 3 little buggers on the dash, to get TC back, you simply turn off and restart with the CDL DISENGAGED.

if you DO CUT the wire to the SLABS, then the ECU DOES NOT CARE whether or not if the CDL IS ENGAGED when you start the car, you ALWAYS have CDL + TC (best option imo)

Fitting a switch is one way of doing it, but even that is not really needed because you can just start with or without the CDL engaged to get or not get TC.

Fit, Cut and forget "imo"

NOTE the cutting is NOT needed on Facelift D2's, as they have a later SLABS ecu.

I have an 01 TD5, which i have to engage the CDL manually, with a spanner. If i want TC on i engage the CDL with the engine running and if i dont want TC i engage the CDL before i start. I dont really see the need for a switch or any wire cutting. Hope thats easy to understand.

Steve

The only trouble when cutting the wire is, you have no indication that the CDL is engaged other than the gear lever position. This is easily over looked especially if the truck is driven by others ie.SWMBO or mates and self is no exception.
Engaging/disengaging your CDL in a particular sequence or switching a switch ( switching is no different to select CDL before or after starting) is a minor inconvenience compared to winding up and breaking drive train components.

Just my 2 cents

Cheers

Thanks for clearing that up for me guys. It all makes sense to me now.
I think I'll get the RAVE schematics out and see if I can work out a way to have the wire cut (I don't want to loose TC), and still have the switch bring up the cdl dash light.
Couldn't be that hard.....could it!

The only trouble when cutting the wire is, you have no indication that the CDL is engaged other than the gear lever position. This is easily over looked especially if the truck is driven by others ie.SWMBO or mates and self is no exception.
Engaging/disengaging your CDL in a particular sequence or switching a switch ( switching is no different to select CDL before or after starting) is a minor inconvenience compared to winding up and breaking drive train components.

Just my 2 cents

This makes no sense to me at all, The dash light is enough to tell you the CDL is engaged, I think your maybe getting a little confused, or been badly advised....

Cutting the wire only stops the SLABS feed, it has ZERO affect on the dash light

EDITED for double post due to Proxy avoidance at work