1998 gmc ecsb viper 3105v keyless entry doesent work.

[94chevc1500]

Hey guys. Working on a 1998 gmc ecsb. I put in a viper 3105v kit. The alarm,unlock and lock chirp, and parking lights all work in sync. My issue is the doors won't lock or unlock. You can hear the viper module clicking but it's not sending power to either blue or green wires. My actuators work with the door panel buttons for the locks it's just the keyless entry. What could it be? Thank you

 

[HotWheelsBurban]

Hey guys. Working on a 1998 gmc ecsb. I put in a viper 3105v kit. The alarm,unlock and lock chirp, and parking lights all work in sync. My issue is the doors won't lock or unlock. You can hear the viper module clicking but it's not sending power to either blue or green wires. My actuators work with the door panel buttons for the locks it's just the keyless entry. What could it be? Thank you

May need reprogramming the remotes? Sounds more like a wiring issue though. Or the Viper module may not be working correctly. If it's clicking ,but the lock actuators are not activating, either it's not sending the signal/power to them, or that signal/power is getting lost somewhere between the module and the actuators. Hence a bad wire/s.... module sounds more suspect. Good luck and let us know....

 

[94chevc1500]

I tested the connections. It's sending ground to the lock actuators. There is a spot on the module to reverse polarity. I tried that and no clicking no unlock/lock functions. Thinking I mightve gotten a bad module

 

[Caman96]

Maybe @Wh4t3v3rs can help.

 

[GoToGuy]

Call Viper.

 

[Wh4t3v3rs]

That positive pulse on the viper brain is only 500mA. To double check, use a fused constant 12v and see if you can pulse the locks. If it works then just add a couple relays. If not, then I would double check your wiring.....

 

[94chevc1500]

Okay I used my power probe as the 12v source. The locks work as long as they are grounded with the probe.

 

[94chevc1500]

Call Viper.

I called them. They said since it is a 98 ecsb I have 5 wire locks and they wouldn't be able to explain how to hook up the relays. Apparently if I hook up relays to the 5 wire locks ( if I have them I don't know) it will blow the viper box. I asked how I could check and see if mine were 5 wire and he said no need to check they are on all trucks 95-99.

 

[Wh4t3v3rs]

I've posted 5 wire schematics in several places.

 

[Caman96]

Apparently if I hook up relays to the 5 wire locks ( if I have them I don't know) it will blow the viper box.

Who said that ^^^?
My 96 has the relays wired in.