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Old 04-05-2011, 08:26 AM   #4
BostonGreen318

Name: BostonGreen318
Title: United Newb
Status: Offline
Join Date: Nov 2009
Location: Raleigh, NC
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Your Ride: 1992 525i & 1994 318is
VIPER C30 Aftermarket Security Removal

The goal in adding to this thread is to provide a reference point should other members suffer a similar headache. Since removal, the phantom battery drain has vanished. For a layman, the most effective strategy for extracting the system was differentiating which wires and components were aftermarket and which were the originals. Please use the previously attached set of photos for clarification.

Thanks Big Evil for the advice!

1) Started w/ the solid green (aftermarket) that attaches to an original brn/blu/yel striped wire underneath glovebox. Solution -- Disconnect green and repair brn/blu/yel original.

2) Solid green (aftermarket) runs back behind center console and attaches to another dark green (aftermarket) wire on left side. The dark green runs from the back of primary harness and up to another brn/blu/yel striped wire situated behind driver's side dashboard. Solution -- Disconnect dark green and repair brn/blu/yel original.

3) From back of black relay harness a heavy gauge yellow (appears aftermarket) attaches to a grn/blk stripe (appears original) wire. The heavy gauge orange (appears aftermarket), which also originates from the back of black relay harness, attaches to another grn/blk striped wire that comes out from steering column harness. The assumption was that the grn/blk stripe was original and severed to accommodate the orange and yellow (aftermarket?) wires. Solution – Disconnect heavy gauge yellow and orange and repair grn/blk stripe.

4) Next, a lesser gauge yellow (aftermarket) also travels from rear of primary harness to a solid green (original) that plugs into wire harness extending out from steering column. Solution – Disconnect yellow and repair solid green.

5) A white wire (aftermarket) extends out from the primary harness into a brown colored fuse, connects to a set of diodes, finally attaching to an original set of gry/prpl stripe and gry/yel stripe wires. Solution – Disconnect white from gry/prpl and gry/yel stripe and repair each.

6) The twisted mystery blk/red/brn wire described in the photos ran from behind carpet on driver’s side and back over to passenger side where the brown happened to be spliced with another red. I realize this is confusing but I’m only reporting what was found. This red wire then led into engine compartment and attached to the positive battery jump starting post, positioned behind right front strut tower. I realized, of course, this must be the power supply for the entire Viper system. As far as the blk/red set goes, these also ran into engine compartment and were at one time connected to a siren horn. Solution – Disconnect power supply wire from battery jump post (see last photo) and simply remove the blk/red associated with siren.

I know this is a lot to process and not every aftermarket security system will be rigged this way but I hope this post may shed some light on the specifics of removal. Thanks for plodding through it and good luck should you come across this problem.
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