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15. Connect 12V+ Power Input
: Red wire on main harness

Connect the red fused wire on the main
harness to a constant 12V+ source.
This source wire should be at least 20
amp supply.There usually is a main con-
stant power wire on the ignition switch.
Use volt/ohm meter to verify.

16. Connect the 12V+ ignition
input: Yellow wire on main
harness

Connect the yellow wire on the main
harness to a main ignition wire.This can
be also found in the main ignition switch
wire harness.Your volt/ohm meter will
read 12V+ when key is turned on.
Make sure that this ignition wire has
12V+ on even during the starting process
of the vehicle. It is important that the
voltage does not drop when the car is
starting.
Some vehicles have ignition wires that
remain or slowly drop to 0 volts.Verify
that when the ignition is shut off that the
voltage drops to 0 Volts immediately. If
the yellow wire has voltage on it after the
key is turned off, it will keep the alarm
from arming via the remote.

17. Connect Ground Input:
Black wire on main harness

Locate a good solid chassis ground and
connect to the black wire on main har-
ness.Verify the ground with your
volt/ohm meter.

18. Connect optional third
channel output: White/Red
wire on main harness

Connect the white/red wire on main har-
ness to an optional relay or accessory
module to control via the 3rd channel.
Ideal for window roll up or remote start.
To use this feature press both buttons
1&2 on 2 button remote control, or
Button # 3 on 3 button remote.

NOTE:

This output will work with the ignition on
or off and will provide output on the
white/red wire as long as you hold proper
transmitter buttons.

19. Connect the door lock
wires: Blue and Green on 5 pin
harness.

For Module without on board door
lock/unlock relays:

The blue wire provides a 500 ma negative
pulsed output for unlock, this output is
designed to drive a relay (See diagram
section).
The green wire provides a 500 ma nega-
tive pulsed output for lock, this output is
designed to drive a relay (See diagram
section).
The Violet, Brown and White wires do
not need to be connected on the 3 chan-
nel module without on board relays for
door locks.

For Module with on board door
lock/unlock relays:

Connect the violet wire to the proper
polarity (negative or positive).

Summary of Contents for BW 2850

Page 1: ...VEHICLE 7 PROGRAM THE DIP SWITCH ON THE MODULE FIRST SEE DIP SWITCH INFORMATION 8 REMOVE DOME LIGHT FUSE TO PREVENT BATTERY DRAIN Timing Information Automatic reset time 45 seconds Panic output reset time 45 seconds Arming time when all inputs are mon itored 10 seconds active arm passive 30 10 seconds 40 total Door Lock output time 75 seconds or 3 seconds programmable via dip switch 1 2nd Channel ...

Page 2: ...ver Board The new receiver design allows for a much narrower band width reception It rejects RF interference that causes incon sistent range in similar type products and improves the range of transmission between remote and receiver Average minimum range is 100 although it is com mon to get between 150 300 Our extended range model with windshield mounted receiver allows for up to 500 of range Inpu...

Page 3: ...ature OFF Switch 4 Passive or Active Arming ON Passive Arm OFF Active Arm the 2nd channel is used for opening the trunk or hatch the alarm if armed will automatically disarm To program these specific features follow the procedure below 1 Turn ignition key to the ON position 2 Press the valet switch 5 times siren will give long chirp 3 Then select the program that you wish to change and press the v...

Page 4: ...arming chirp as long as arming chirps are on 2 Within 5 seconds press Button 1 2 simultaneously You will hear a second short chirp confirming that the shock sensor and auxiliary sensor input will not be monitored Once you disarm and rearm the hood and doors will be moni tored normally Using the temporary remote sensor and trigger bypass to diagnose falsing problems will allow you to easily find th...

Page 5: ... will hold 3 different codes in memory NOTE Once you enter the code learn ing mode the system will throw out any previous programmed remotes If you are programming two remotes with the same code the system will acknowledge only the first remote Even though both remotes will operate the system INSTALLATION INSTRUCTIONS 1 Mount the module and pro gram dip switch functions see page 3 Look for a suita...

Page 6: ...it should fit snugly 5 Install the Valet Override Switch Mount the valet override switch in a hid den location but that can still be found by the customer for programming and emer gency override situations Run the 2 pin blue connector and wire harness to the module and plug into the matching blue 2 pin connector on the module 6 Connect Starter Disable Relay Using a volt ohm meter locate the starte...

Page 7: ...e opened Verify with a volt ohm meter Make sure that all doors when opened separately make the target wire provide a ground output 11 Connect Hood Trunk switch input Blue wire on main harness Connect the blue wire to either or both hood and trunk switches They must pro vide a ground output when the trunk or hood are opened 12 Connect Positive Door input Violet wire on main harness Connect the viol...

Page 8: ... Locate a good solid chassis ground and connect to the black wire on main har ness Verify the ground with your volt ohm meter 18 Connect optional third channel output White Red wire on main harness Connect the white red wire on main har ness to an optional relay or accessory module to control via the 3rd channel Ideal for window roll up or remote start To use this feature press both buttons 1 2 on...

Page 9: ...k that all doors trigger the system not just the drivers door Do this with the Silent Test Mode Adjust the shock sensor clockwise for more sensitive counter clockwise for less sensitive make sure that it is not too sensitive Arm the system and try starting the vehi cle it should not start Arm the system and disarm it with the ignition and override switch If programmed to passively arm make sure th...

Page 10: ...DOME LIGHT OUTPUT DOME LIGHT RELAY POLARITY RECEIVER MODULE SHOCK SENSOR OPTIONAL SENSOR BLACK WHITE BLACK WHITE ORANGE GRAY GREEN BLUE PURPLE BROWN WHITE RED YELLOW BLACK WHITE RED VALET SWITCH LED SIREN STARTER SIDE WIRING HARNESS FUSE RED LED CONNECTOR BLUE VALET CONNECTOR X CUT STARTER WIRE SWITCH SIDE FUSE BROWN VIOLET NO CONNECTION NO CONNECTION DOOR LOCK HARNESS BROWN BROWN 3 CHANNEL WITHOU...

Page 11: ...OCK FUSED 12V LOCK UNLOCK ACTUATOR N C N C N C X DOOR LOCK HARNESS N C 87 85 86 87a 30 MERCEDES VACUUM SYSTEM FOR MODELS WITHOUT DOOR LOCK RELAYS WHITE GREEN BLUE BROWN VIOLET CONTROL MODULE SWITCH N C 87 85 86 87a 30 X X VACUUM PUMP FUSED 12V N C ACTUATORS DOOR LOCK HARNESS REVERSE POLARITY ADD ON ACTUATOR 87 85 86 87a 30 87 85 86 87a 30 GREEN BLUE BROWN VIOLET WHITE N C N C N C FUSED 12V DOOR LO...

Page 12: ...HT OUTPUT DOME LIGHT RELAY POLARITY RECEIVER MODULE SHOCK SENSOR OPTIONAL SENSOR BLACK WHITE BLACK WHITE ORANGE GRAY GREEN BLUE PURPLE BROWN WHITE RED YELLOW BLACK WHITE RED VALET SWITCH LED SIREN STARTER SIDE WIRING HARNESS FUSE RED LED CONNECTOR BLUE VALET CONNECTOR X CUT STARTER WIRE SWITCH SIDE FUSE BROWN VIOLET UNLOCK SWITCH 87a LOCK UNLOCK POLARITY 87 DOOR LOCK HARNESS BROWN BROWN 3 CHANNEL ...

Page 13: ...TCH RELAY MODULE N C REVERSE POLARITY FACTORY DOOR LOCK SYSTEM WHITE GREEN BLUE BROWN VIOLET L U DOOR SWITCH X X X X CUT FUSED 12V ADDING ACTUATORS WHITE GREEN BLUE BROWN VIOLET FUSED 12V FUSED 12V 87 85 86 87a 30 MERCEDES VACUUM SYSTEM DIP SWITCH TO 1 TO OFF WHITE GREEN BLUE BROWN VIOLET CONTROL MODULE SWITCH N C X X CUT 3 CHANNEL WITH ON BOARD DOOR LOCK RELAYS DOOR LOCK DIAGRAMS 3000 3100 3200 ...

Page 14: ... is defective or not plugged in Factory Dome light Delay is longer than 30 seconds Door open or defective pin switch Shock sensor is defective Wrong wire connected to the White wire or requires a negative output Chirp Delete mode is engaged SUGGESTED CORRECTION Take alarm out of Valet mode turn key off wrong wire con nected to yellow wire main harness Correct Dip Switch 4 Correct door switch polar...

Page 15: ... Yellow wire still has voltage on it door input is showing open door Vehicle factory security sys tem needs to be disarmed Bad power and ground con nections Vehicle battery dead or drops below 7 5 volts when trying to start the vehicle SUGGESTED CORRECTION Change polarity of the one Black White wire Make sure antenna is not con nected to anything relocate module away from vehicle computer modules ...

Page 16: ...Passive Pre Arm State Rapid Flash after disarm System was triggered On Solid InValet On Solid After passive prearm or active arm 10 second final prearm state On Solid when disarmed and not inValet Input is open See Test Mode SILENTTEST MODE When the system is disarmed the LED will go solid every time an input is triggered You can check the shock sensor doors hood trunk and the auxiliary sensor inp...

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