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Saturday, October 25, 2025 • Copyright © 1999-2025 the12volt.com, All Rights Reserved • Privacy Policy & Use of Cookies
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Use all three Red +12V constant ignition sources. Your main problem is the Vipers three +12V fused inputs (Red, Red/White and Red/Black). You want to connect the Red/Black fused wire to +12V constant. This wire supplies power for the Starter and ACC1 outputs. The extra relay for ACC2 is good.
You will need to connect the Vipers Black/White Parking Brake (Neutral Safety) wire to Chassis Ground.
You must connect the Vipers' Brown Brake Input wire for R/S shutdown / key takeover.
Brake Detection WHITE/TAN (+) AT SWITCH ABOVE PEDAL
For a Diesel Engine you can set a fixed WaitToStart delay with Viper Menu 3 Feature 10.
Parking Lights are a MUX type control at the steering column. You will need another relay and resistor to get the R/S to turn them on. Diagram below :

