Dcs engine runs on track 1 not track 2 all other dcs engines run fine on both

Just don't do that! Sorry, couldn't resist.

Does it sit dark and quiet?

Does it come up in conventional mode?

Will it run on track 2 if everything else is removed?

Clean the wheels of the engine and also clean the track.  G

Yes it sits dark
It runs perfect on track one as soon as switched to track two
No control on anything
Other engines run fine
Dcs tens on both tracks
Engine was running in stealth mode and just quit tonight

Track is clean

just for a test, try to use that engine for a signal test on track one and see what it reads?

When U say it quit tonight, I'm guessing U mean only on track 2?

Does the remote have any issues communicating with it on track one?

Sounds weird at first glance.

Is this 3 rail? Do you have the outside rails tied together on track 2? on track 1?

Yes three rail
No outside rails not connected atlas o track

All engines run perfect on both tracks
This engine has no problems on track one
Place on two and no control nothing
Never had this happen

I would try a conventional reset 1 whistle 5 bells I believe then you should hear 2 whistle toots if the reset works can't hurt anything who knows maybe it will help. Good luck Alan

which engine is it exactly? Some 3/2 models didn't have their wheels tied together when in 3 rail mode.

 I'm just trying to see why this one engine sees something different than your other engines. Maybe a wire has come off inside the engine at this 3/2 switch? If it's a steamer, is there any tether problems?

 It's hard to know what's going on when you're not actually there. There's a lot of info missing to help.

 R U using more than one TIU? What's the power source to each? etc.

Have U tried switching the TIU channel to see if the problem follows?

This engines sees or doesn't see something that we don't, yet.

What message does the remote give when you try to call the engine on track #2?

As Joe stated if you do a signal strength test on track one and see what the offending engine reads.  If low it could ba an issue on Track 2 but not track 1.

 

Engine wheels being cleaned can help, also look at pickup rollers.

 

To test Joe's issue about polarity and ground on 3-2 engines, turn engine around to see if it now works on Track 2.

 

G

Whats the model number of the engine?

 

The engine is the dd40 ps2 dealer appreciation
I will try this stuff this afternoon
Like I said it works perfect on track 1 anywhere
Does not work on track two anywhere
Fifteen other locks ps2 and PS3 work on both tracks perfect

Jumper both outside rails together with whatever you have.

I agree with Gregg.  This is essentially the same possible problem that GGG is focusing on when he says to turn loco around.

 

Did this loco ever run on track 2.

U need to give us an idea of the #? Is it ps2 5volt?

http://mthtrains.com/prod-search/DD40AX%20

I laugh when guys want help, but getting info is like pulling their teeth!

What also is a problem, Joe, as you know, is getting them to state whether they have or have not tried a suggestion, or fail to answer a question.

Yeap!

all in good fun. I think people fail to realize that the guys trying to help, can't see the problem from their house!!!

Yes train ran fine on both tracks
Three volt
Turned train around
Same thing
Does not have three rail two rail conversion

When on track two and you start it up it clicks and stays silent but will not take any commands

Runs in conventional just fine

This really is a puzzler ,    hook up track 2 to a short test track  and try again.

While sitting on track two if I go into dcs menu and go to all outputs on and press it while in that screen the horn works fine and the couplers fire
As soon as I go to engine menu nothing

Could it be software related?

Same thing on short piece

Cleaned wheels and rollers spotless
Same thing

Put jumper clips onto the rails and clip them to a pickup roller and a spot on the truck block. If it does nothing, reverse the leads connected to the engine. If it responds, then Track #2 has the DCS hot in the wrong place and should be reversed. Proto-2 engines were polarity-sensitive -- i.e., the DCS signal needed to come in from the center rail only. Proto-3 engines don't care.

Engine went around track one all tens it read back

Well the engine doesn't care or know what track it's on.

There's something different between tracks 1 and 2 then.

It has to be wiring on them.

The fact that you just posted something about a short piece?

What channel is that hooked up to? Try a short piece connected to channel #1.

Try swapping the TIU channels and see if it will run on track 2!

 OK, well looking over all your posts:

You have Legacy control and Lionel engines on these tracks?

You're still powering with 2 135 watt bricks in parallel?

Have you added something new?

What's on track #2 while this engine is?

Ok
I discovered it will not run ps2 engines PS3 engines run fine
Thought the engines I was testing were ps2
Sorry
No control on ps2
Track wiring has been in for a year and everything worked
So it's not that
Maybe the tiu?

If I swap the red and black wires now on track two the trains all work perfect
But this is wrong
Red is hot at least it was
I cannot cross over from one track too another so the tiu has a problem any one know what it is
Everything is wired by the book and worked perfect until last night
Is there a way to fix tiu
Maybe a diode failed
I don't know
Should I send it back

I don't think anything is broken, just some type of wiring issue.  lets find out what your power supply is and how do you have it hooked up.

 

I'm guessing track 1 is fixed 1 and track 2 is fixed 2,  What powers each track (channel) Are the 2 track connected via a crossover ?

 

Red always to center rail . There is a chance  one of your power supplies may be out of phase with the other one,,,,  If you have a volt meter, measure the voltage between the center rail of track 1 and the center rail of track 2... yep! center rail to center rail There shouldn't  be any  voltage or  very little, If you get around 35 to 40 the power supplies are out of phase.

Input power doesn't matter for AC.  Some how the red is not going to center rail on Track 2.  Once you swapped it, the trains worked.

 

So somewhere the wires got swapped.  Any recent maintenance?  I would trace red and black wires from Track 2 to the track.  G

No recent anything
Everything worked till last night
I hooked the train direct to tiu
It will not run with red going to center roller it will work fine with the black on the roller and the red on the ground side
Direct out tiu
So something is wrong within tiu I think
Something inside is toast

Anybody done any wiring to your house lately?

have you tried  a TIU reset, yet?

 

 Try using  one power supply for fixed 1 & 2. Jumper fixed 1 in over to fixed 2 in for the input side. Leave the outputs the same. I have a hard time thinking the tiu is Kaput .   It's  a little frustrating , we still don't know how you're powering the tiu and channels.