UNIVERSAL BYPASS MODULE 781 The Bulldog Model 781 interface module is used when installing remote starters in any vehicle equipped with an anti-theft system. This model allows easy interfacing while maintaining the OEM system’s integrity. BEFORE YOU BEGIN It will be necessary to open the 781 Module to remove the wiring harness. Simply insert a straight shank screwdriver into the two wide slots in the bottom of the module to separate the halves.
12. The BLUE wire is not used. 13. Look up the value read from the meter on the chart and set the switches remembering a (1) on the chart indicates a switch in the “up” position and (0) being “down”. See page 4. 14.
CHECKING RESISTANCE VALUES FIGURE 4 • PASSKEY (VATS), PASSLOCK I and PASSLOCK II Transponder Loop Plug (NOT USED) with VATS, Passlock I or Passlock II Dip switches 8 Position Harness Connector (2) Resistor Measuring Pads NOTE: Used when checking dip switches. Measure resistance value with ohm meter. MAKING CONNECTIONS (Non-transponder) FIGURE 5 •...
SETTING DIP SWITCHES NOTE: Switches must be set before installation; CAUTION: Never set switches 1-10 all to (0) “down” when installed. Switches 1-10 control the resistor value as shown in the chart. A “1” in the chart indicates the switch is in the “up”...
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