791XV Starter Kill Issue

I installed a 791XV which has the XCRS (small relays in a case) and the ORANGE / blk wire on the 7 pin relay harness is supposed to control anti-grind/starter kil (ground when armed)l.  The starter kill portion doesn't seem to work.  I have the purple and green wires hooked up correctly.  I tested ORANGE / blk wire and it goes to ground when it should be in anti grind mode but does not when it should be grounded when armed.  I do have the settings of the unit programmed for it as well.  The main ground when armed wire on the main harness works just fine.

Any thoughts?

Jason

I have even tried jumpering the correct pin on the XCRS to ground and no relays click.  I have tried this on two XCRS boxes I have.  Same result with both.  No relays activate when it goes to ground.  This seems strange to me.  I thought the XCRS had the starter disable built into it????

Jason

I got it resolved, had to do with how the starter kill relay gets power at pin 86.  I had to do some special modification work in the XCRS due to the fact how it was all wired in my Dakota.

Thanks

Jason

you shouldnt have had to modify anything... the 791 comes with that feature built in thru the PURPLE / Green starter wires... you cut the starter wire and green goes to key side and Violet goes to starter side, then you go into programming and program starter kill ( Security features ) on or off.....

it's very simple, you shouldnt have had to change anything....

Well it all has to do with the custom install I did in my 04 Dodge Dakota.  It has 5 power wires for the ignition assembly.  One is rated at 20 amps and controls two run/start wires and the starter wire.  I wired this into the XCRS for the starter relays and the orange wire output. 

The XCRS has three power inputs.  One is actually jumpered to two of the relay inputs.  I separated these so I really have three fused inputs going into the XCRS.

So now there are four remaining powered inputs into the ignition that I have to deal with.  Two are fused at 40 amps the other two are fused at 50 amps.

I placed the 2  "RUN" only outputs from the ignition into the XCRS for the two remaining relays.

I then used 2 "RUN/ACCESSORY" only outputs through two normal relays not contained in the XCRS.

The stater kill relay within the XCRS gets power (pin 86) from the pink heavy gauge wire leaving the XCRS.  This would normally be a run/start wire but the way I have it wired it is a run only wire so the starter kill relay wasnt geting power when in the start position thus causing the kill relay not to trigger.

I also swapped the small gauge pink and orange trigger wires going to the XCRS. So the correct relays would get activated at the right time and I had to reprogram the pink/white trigger wire. 

Then I had to re-route the power for the starter kill from the pink heavy gauge wire to the orange heavy gauge wire. 

This way the vehicle maintains all the factory circuits for the remote start operation.

I hope I typed this all correctly.

Jason

If I were to mix the OE circuits together then yes I could have done it without modfying it but I prefer to keep the remote start circuits and the OE circuits the same.  It is much safer this way (in my opinion).  

This is the way it would be set up with no modifications:

The XCRS has two power inputs both fused at 30 amps.  One input goes to the TWO starter relays and the Orange output (run only).  The other input goes to the Pink output (run/start) and the Pink White(programmable run/start or run). 

The 04 Dakota has two run/start output wires and one starter wire all on the same 20 amps circuit.  Then it has two run outputs which are on separate circuits, one fused at 50 amps and the other at 40 amps.  This would be all that is needed to make the vehicle start and keep running.

So according to the direct tech I would tap into a 50 amp and 40 amp source to power the entire XCRS.  So I put the 40 amp one on the power input for the starter and run side which would be a 20 amp circuit and a 40 amp circuit of which they would not be operating at the same time..  Then I take the 50 amp one and put it on the run/start and programmable relay.  These two relays would be powering a 20 amp circuit and a 50 amp circuit which would  be operating at the same time on a 30 amp DEI circuit.  

I chose not to do this.  Yes it isn't required, it was my choice.  But now I have it pretty much operating just as if you had the key running it instead which makes me feel more comfortable about not burning up my $30,000+ truck.

Jason