2002 silverado, alarm/remote start

If the domelight wire is a relay, you don't have to diode isolate it. It just needs to be connected to the tan drivers doorpin wire (connect the input of the relay to negative). The rearm wire also needs to be conncted to the drivers doorpin wire as well. I was just saying you could just attach them both together to the tan doorpin wire. But dont attach them both together between where you split the rearm wire into two with two diodes and the brain. You could do it like this: Split the rearm wire with two diodes(band sides towards the brain), now the rearm wire is"Y" shaped. One side needs to go the the negative lock wire input on the DLP-P4, the other needs to be connected along with the domelight supervision wire to the tan doorpin wire(tie both the domelight wire AND the rearm wire to the tan doorpin wire). Am I confusing you now?

When I say "split the rearm wire with two diodes" I'm talkin about both the doorlock wire on the DLP-P4 and the tan doorpin wire need to be connected to that rearm wire, but they have to be isolated from each other with diodes.

CutDog504 wrote: If the domelight wire is a relay, you don't have to diode isolate it. It just needs to be connected to the tan drivers doorpin wire (connect the input of the relay to negative). The rearm wire also needs to be conncted to the drivers doorpin wire as well. I was just saying you could just attach them both together to the tan doorpin wire. But dont attach them both together between where you split the rearm wire into two with two diodes and the brain. You could do it like this: Split the rearm wire with two diodes(band sides towards the brain), now the rearm wire is"Y" shaped. One side needs to go the the negative lock wire input on the DLP-P4, the other needs to be connected along with the domelight supervision wire to the tan doorpin wire(tie both the domelight wire AND the rearm wire to the tan doorpin wire). Am I confusing you now?

You are saying since the dome light supervision output is a relay output, just wire it to the tan door pin wire.   So this connection to the tan door pin wire will have the anode end of one of the rearm wire diodes and the dome light supervision output.   The other rearm diode anode goes to the door lock (-) output which is the input to the DLP-P4. Then both door pin wires connect through seperate diodes to the door trigger input to the brain. I've actually got all this drawn out in autocad like you are saying, but I can't attach that drawing on here.

Yep, YOU GOT IT! That pretty much sums it up. But you see how complicated all this is as compared to a module controlling everything like on your 05? Twice as much work. Plus a fistfull of diodes, lol.

CutDog504 wrote: Yep, YOU GOT IT! That pretty much sums it up. But you see how complicated all this is as compared to a module controlling everything like on your 05? Twice as much work. Plus a fistfull of diodes, lol.

I think I need to go buy another sack full of diodes!  

CutDog504 wrote: Hmmmm, thats a new one to me. Try it.It also looks to be a different shade of green than the disarm wire, it looks more like a yellowish green then just light green. I also noticed that diagram shows for you to grab your tach wire under the hood at the the BCM. I know for a FACT that you can get it behind the instrument cluster. It's still a white wire where it plugs into the cluster. The instrument cluster comes right out by simply removing the 4 7mm screws that hold it in. Then unplug it and find the white wire in that harness.

Finally got to look at the wiring diagram for this truck.   The light green wire (-) (Pin A4 BCM Blue Connector)  pulls in the Driver Door Unlock Relay.   

I'd try that wire then.

Got everything installed and everything seems to work except it won't initiate a remote start.   The transmitter says there is a safety circuit problem, but I don't have the hood pin switch wire connected yet.   Does the Neutral Safety Wire need to be connected to ground?

yes it does. just connect it to ground and it will solve your problem.

ckeeler wrote: yes it does. just connect it to ground and it will solve your problem.

Yeah, I figured it needs to be connected.    I just assumed that wire would only be for a manual transmission, I guess they have to idiot proof everything now.    Thanks