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silverado base model priority driv unlock


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mvarnado 
Member - Posts: 19
Member spacespace
Joined: September 06, 2011
Posted: October 17, 2011 at 1:55 PM / IP Logged  
2004 Chevy Silverado Base Model (power locks only)
Viper 5901
XK01
I am clearly retarded. I have been basing my entire install project on the premise that my XK01 would allow me to have Driver Priority Unlock. That would make sense if the truck had done DPU previously, such as with factory keyless entry/alarm, but not if the truck never had that capability in the first place. The base model truck only has 2 wires at the BCM - lock and unlock. The truck doesn't distinguish between whether you're unlocking one door or the other. Whether you hit the switch on the driver or passenger door, the same thing happens. Both doors lock or unlock together. How could I expect it to be any different just because the XK01 or 5901 is telling it to?
I believe that my solution is to program my Aux 1 on the Viper 5901 to second unlock and then hook up a relay. My 5901 has the 18-wire harness instead of 1x 8-pin and 2x 5-pins. That means that H2/6 is not merely a light blue second unlock wire. It is a WHITE/ purple Aux 1 wire that can be programmed to option 6 which is second unlock. It works just like before. If you program H2/6 correctly (Menu 2, Menu item 9, option 6) then hit the unlock button twice, it sends a (-)200mA pulse on H2/6 which can drive a relay to unlock your non-driver doors. On your 5901 remote hit Aux 1 or simply press the unlock button on the remote twice, and the same thing happens.
Anyway, I don't know how to get the passenger door to work independently. I don't know how to get it to ignore the first unlock command from the remote. If I hook the H2/6 wire up to a relay, I don't know where to attach the wire coming from the 30 pin of the relay to the passenger door wiring. The first place I tied into just blew the door lock fuse in the driver's side fuse panel. I have an aftermarket tailgate lock tied into the passenger door lock wiring and it's working as expected. I just want the passenger door and tailgate lock to respond to the 2nd press of the unlock button and ignore the first. Of course, it would also be nice if the buttons on the door panels still controlled the door locks as originally intended, but I can be flexible on this.
Any help would be greatly appreciated. Thank you.
Mike M2 
Platinum - Posts: 2,652
Platinum spacespace
Joined: June 29, 2005
Location: United States
Posted: October 17, 2011 at 4:37 PM / IP Logged  

Your looking at this a little wrong. You need the first press to control the drivers door, so you use the blue unlock to control a relay that should control the drivers unlock motor leg wire in a 5 wire connection. The second pulse off the 5901 should be connected to the unlock of the BCM. In a normal 2 stage unlock, the second pulse unlocks all, so yes the pulse will unlock the drivers again along with the rest but really doesn't matter since it's already unlockd.

So to be clear, the blue unlock controls a relay, which is connected 5 wire to the tan drivers unlock motor wire in the drivers fuse panel. The second unlock wire from the 5901 should get connected to the white unlock wire at the BCM.

Mike M2
Tech Manager
CS Dealer Services
mvarnado 
Member - Posts: 19
Member spacespace
Joined: September 06, 2011
Posted: October 17, 2011 at 8:40 PM / IP Logged  
Mike, thank you so much for the help. I'm in the process of wiring things up as you described. Once it's done, should the XK01 stop sending lock and unlock commands to the Chevy's computer? It's either D2D or W2W, but not both, right? The unlock command going over the blue wire from the 5901 should be the only command getting to the motor?
mvarnado 
Member - Posts: 19
Member spacespace
Joined: September 06, 2011
Posted: October 18, 2011 at 2:33 AM / IP Logged  
Mike,
Sorry for the gibberish. Let me start over. The XK01 and 5901 were originally connected D2D with the violet wire connected to the diagnostic port. I figured it would be necessary to change this to W2W in order to accomplish what we discussed. Otherwise, every time I hit the unlock button it would unlock both doors D2D while also sending the unlock command down the blue unlock wire W2W. Sometimes my battery goes dead while working on the truck.
Now that I've connected everything and double checked and triple checked, I seem to be running into problems. My XK01 wants to go straight into "User Settings - Optional Programming" mode. It won't really respond the way the manual says it should. It won't allow the truck to remote start and it won't control the door locks. It won't let me use the 5901 remote toggle between mode options. I ran into this once before and just aimlessly repeated different steps until I got a breakthrough.
Any help out of this personal hell would be very much appreciated.
Mike M2 
Platinum - Posts: 2,652
Platinum spacespace
Joined: June 29, 2005
Location: United States
Posted: October 18, 2011 at 6:43 AM / IP Logged  

Not familiar with the XK01 so there's little i can help with there.

Are you sure the XK01 even controls locks on the base model? It's been a while since i did one but for some reason i thought the 2 door truck had no door data. That said you are correct in that the 5901 should control the locks no the XK01. If it does then yes, you need to be W2W...

Mike M2
Tech Manager
CS Dealer Services
mvarnado 
Member - Posts: 19
Member spacespace
Joined: September 06, 2011
Posted: October 19, 2011 at 12:26 PM / IP Logged  
For the education of anyone checking out this thread, the suggestion Mike made is a good solution. On my year model Silverado (03-06) the tan unlock wire is in the black 12-pin harness at the driver's side fuse panel.
Here's the deal, though. There are different settings you can play with within the Viper and XK01 that will give you Priority Driver Unlock capabilities. However, on a base model truck, any unlock commands it receives at the computer will be carried out as "lock all" or "unlock all". The locks are tied in to each other somehow through the design, and both doors respond the to every command the same. No matter what you do, the first pulse will always lock or unlock everything as one.
If you wire everything up as Mike suggested but you have D2D connection between your Viper and XK01, the XK01 will always send a pulse to the Chevy that will lock/unlock all the doors together. This will be happening simultaneously with whatever else you have going on and completely defeat the purpose.
The pro installer I talked to yesterday told me that the W2W harnesses on a lot of the XK01s were color-coded incorrectly, making that W2W set-up unreliable. He said I should buy an XK06 instead (since it only does bypass) and just continue with the changes Mike suggested. I felt like this was unacceptable since I'm stuck with a $40 XK01 that I can't use or sell very easily. I felt like if I could verify the proper wires in the XK01 harness, I should be able to just leave all wires related to lock and unlock disconnected between the XK01 and the Viper, and just use the XK01 for it's bypass capabilities. I think the only reason this didn't work the first time I tried it was because:
A) My XK01 was sort of locked into a settings mode and wasn't working properly at the time of set up
B) The wire harness may have had the wrong colors.
I either need a new wire harness for my XK01 or I need to ignore wire colors and somehow verify which wire is which some other way.
Any suggestions out there?
mvarnado 
Member - Posts: 19
Member spacespace
Joined: September 06, 2011
Posted: October 20, 2011 at 1:30 AM / IP Logged  
I got someone to flash my XK01 so that I could start over with the W2W connections with a completely fresh module. It worked perfectly. Also, everything I did with the lock and unlock works perfectly thanks to Mike's valuable contribution. I only have one problem, and that's with the relay to the driver door lock.
I used a 12 VDC Tyco Relay SPDT 20/30A (Formerly Bosch). I got an IN4004 diode from Radio Shack and soldered it from the 85 pin to the 86 pin with the band toward the 86. I hooked it up like this:
85 - Unlock wire from Viper, which I believe is (-)500mA
30 - Tan (5 wire) at the dash fuse box, black 12 pin plug, pin F.
86 - 12VDC Constant
87 - 12VDC Constant
87a - Ground
Anyone who knows diodes and relays will take one look at this and figure out what I did wrong. Hopefully they will tell me so I can fix it. Thanks in advance. I'm so close now....
groundzero2010 
Member - Posts: 46
Member spacespace
Joined: September 15, 2006
Location: Arkansas, United States
Posted: October 20, 2011 at 9:35 AM / IP Logged  

This is the one thing I don't like about the XK01. The fact that you have to have it flashed using a different module. I think you should be able to flash it at the module. You have to set all your options up correctly the first time or else you'll be flashing the unit.

Your relay config is switching the relay on when a negitive pulse is sent down your Viper unlock wire at pin 85, this energizes the relay coil because the 12V constant is at pin 86. Once the relay is energized it connects pin 87 and pin 30 together which in your case sends 12Vs from pin 87 to pin 30. When the relay coil is at rest or not energized, pin 87A and 30 are connected. Your diode is not allowing (+) signal go from pin 86 across to pin 85 and just the opposite for (-) signal, it's not allowing (-) to go from pin 85 to pin 86. If this is connected wrong, you could fry your output of your alarm. I believe the relay is there to absorb a surge that may happen when the relay is de-energized. Don't quote me though.

By the way, it was brought to my attention, on your abbreviation for circuit you use "CKT". There is not "K" in circuit. Should this possibly be CCT? - R. Robson
hahahahahahaha
Mike M2 
Platinum - Posts: 2,652
Platinum spacespace
Joined: June 29, 2005
Location: United States
Posted: October 20, 2011 at 2:19 PM / IP Logged  

First, ditch the diode. You just don't need it.

The tan wire rests in a state of ground when not used. The way you have it you are shooting a 12 volt positive directly to a ground and creating a short. You need to cut the tan wire and run it thru the relay so that when you trigger it and send 12 volts to it you are only sending 12 volts in one direction. Do this...

85   trigger from alarm

86   12 volts

87   12 volts

30    motor side of tan wire

87a    switch side of tan wire

Mike M2
Tech Manager
CS Dealer Services
mvarnado 
Member - Posts: 19
Member spacespace
Joined: September 06, 2011
Posted: October 21, 2011 at 10:43 AM / IP Logged  
Before I start a new topic for this next issue, I'll try and post it here. I have read all over and haven't found anyone complaining about this issue:
Like I said before, my XK01 is working as intended being hooked up W2W with one odd exception. The violet/white wire is supposed to detect front door entries because it's hooked up to the truck through the diagnostic port/violet wire. It's supposed to send a negative pulse down the violet/white wire, which I would connect to the green H1/8 on the Viper. Well, for whatever reason the violet/white wire is sending constant 12v and doesn't change at all when the door opens or closes. I've checked the manual to make sure my vehicle wasn't some rare exception to the rule and it's not. Really weird. In case there really was a problem with wire harnesses not having the right colors, I tested the remaining unused wires and none of them seem to be affected by doors opening or closing.
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