the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
icon

Ford/Merc. Double Diode Info?


Post ReplyPost New Topic
< Prev Topic Next Topic >
Dragorus 
Copper - Posts: 75
Copper spacespace
Joined: January†12, 2004
Location: United States
Posted: April†05, 2004 at 10:36 PM / IP Logged  

Would like to know the proper way to double diode isolate the door triggers??.....I have read the posts here and have seen two ways and am not sure which is the acurate way...

1= Twist the two ends together example = twist neg with neg and pos with pos....

2= connect back to back= in series..

Which is the actual way to double diode....the first way does'nt seem logical because the 100ma backfeed will still go through untouched...The 2nd way however seems right beacause the first diode cuts in it half then the second diode eliminates it......

Please some one explane the propper way for me thanx sooooo much!!

Velocity Motors 
Moderator - Posts: 12,487
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Fabrication. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: March†08, 2002
Location: Manitoba, Canada
Posted: April†06, 2004 at 1:23 AM / IP Logged  
If you use method one you are adding the blocking diode amperage up and if you are using method two you are not really doing anything at all as far as blocking any more current.
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
NowYaKnow 
Gold - Posts: 1,216
Gold spacespace
Joined: December†18, 2002
Posted: April†06, 2004 at 6:08 AM / IP Logged  
When I hear the term double diode isolate I was under the impression that meant to CUT the door trigger wire in the car and stick a diode inline on that wire. Then also put a diode on your wire and connect to the door trigger. I've never had to do either way so not positive on this one..
Mike
chriswallace187 
Gold - Posts: 1,661
Gold spacespace
Joined: March†11, 2002
Location: Pennsylvania, United States
Posted: April†06, 2004 at 6:41 AM / IP Logged  
I'm not sure why it's referred to as double diode isolation really, since you have to use 1 diode per separate trigger. The easiest way I've found to hook them up(assuming this is a late model Ford with multiple negative door triggers) is to twist the non-striped side of the diodes together, hook them up to the alarm's door trigger input, and hook each of the striped sides of a diode to one door trigger wire.
Putting a diode inline on the door trigger wire is necessary on vehicles where the door triggers go to a control module that shuts down some time after the vehicle is shut off, such as on late-model Fords or Chrysler minivans. In this case, you have to cut each door trigger wire on the vehicle and wire a diode inline with the striped side facing towards the doorpin and the alarm's input.
Dragorus 
Copper - Posts: 75
Copper spacespace
Joined: January†12, 2004
Location: United States
Posted: April†06, 2004 at 7:21 AM / IP Logged  

chriswallace187 wrote:
I'm not sure why it's referred to as double diode isolation really, since you have to use 1 diode per separate trigger. The easiest way I've found to hook them up(assuming this is a late model Ford with multiple negative door triggers) is to twist the non-striped side of the diodes together, hook them up to the alarm's door trigger input, and hook each of the striped sides of a diode to one door trigger wire.
Putting a diode inline on the door trigger wire is necessary on vehicles where the door triggers go to a control module that shuts down some time after the vehicle is shut off, such as on late-model Fords or Chrysler minivans. In this case, you have to cut each door trigger wire on the vehicle and wire a diode inline with the striped side facing towards the doorpin and the alarm's input.

Will this cause problems with the GEM module by doing this......Do the doors need to see that backfeed....??

draasch 
Gold - Posts: 2,172
Gold spacespace
Joined: February†07, 2003
Location: Florida, United States
Posted: April†06, 2004 at 7:37 AM / IP Logged  
tell us what kind of car you have......we can tell you how to hook the doors ups............
Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt
Dragorus 
Copper - Posts: 75
Copper spacespace
Joined: January†12, 2004
Location: United States
Posted: April†06, 2004 at 9:47 AM / IP Logged  

draasch wrote:
tell us what kind of car you have......we can tell you how to hook the doors ups............

1997 Merc. Mountaineer AWD

draasch 
Gold - Posts: 2,172
Gold spacespace
Joined: February†07, 2003
Location: Florida, United States
Posted: April†06, 2004 at 10:25 AM / IP Logged  
i dont show you needing diodes on that car...
Make:   Mercury
Model: Mountaineer
Year:    1997
Alarm
Constant 12 volts YELLOW (2) IGNITION SWITCH HARNESS
Ignition 12 volts L GREEN/ PURPLE IGNITION SWITCH HARNESS
Starter RED / L BLUE IGNITION SWITCH HARNESS
Dome Light BLACK/ L BLUE (+) AT COURTESY LIGHT *
Trunk Pin Switch SAME AS ABOVE
Parking Lamp WHITE/ BLACK (+) AT HEADLIGHT SWITCH
Power Lock PINK / YELLOW DRIVER KICK #201
Power Unlock PINK/L GREEN PANEL
* BLACK/ L BLUE (+) Wire Also Located At Interior Lamp Switch. #201- See Negative Pulse Door Lock Diagram.
Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt
Dragorus 
Copper - Posts: 75
Copper spacespace
Joined: January†12, 2004
Location: United States
Posted: April†06, 2004 at 12:21 PM / IP Logged  

draasch wrote:
i dont show you needing diodes on that car...
Make:   Mercury
Model: Mountaineer
Year:    1997
Alarm
Constant 12 volts YELLOW (2) IGNITION SWITCH HARNESS
Ignition 12 volts L GREEN/ PURPLE IGNITION SWITCH HARNESS
Starter RED / L BLUE IGNITION SWITCH HARNESS
Dome Light BLACK/ L BLUE (+) AT COURTESY LIGHT *
Trunk Pin Switch SAME AS ABOVE
Parking Lamp WHITE/ BLACK (+) AT HEADLIGHT SWITCH
Power Lock PINK / YELLOW DRIVER KICK #201
Power Unlock PINK/L GREEN PANEL
* BLACK/ L BLUE (+) Wire Also Located At Interior Lamp Switch. #201- See Negative Pulse Door Lock Diagram.

Thats because your showing the domelight as the door trigger which isn't good due to domelight delay & Timeout.......With this vehicle you have to go to door triggers for propper operation.....

draasch 
Gold - Posts: 2,172
Gold spacespace
Joined: February†07, 2003
Location: Florida, United States
Posted: April†06, 2004 at 12:52 PM / IP Logged  
Driverís front: yellow/blk
Driverís rear: Lt GREEN/ YELLOW
Passengerís front: grey/red
Passengerís rear: pink/blue
Lift gate: WHITE/ pink
All wires are neg. and can be found at the module. Pins #4 5 6 7 8
Pin 4 is for the lift gate and 5-8 are the doors.
If you have a hood or trunk wire, wire it up to the lift gate. The rest you will need to diode isolate.
Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt
Page of 2

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

  •  
Search the12volt.com
Follow the12volt.com Follow the12volt.com on Facebook
Friday, December 3, 2021 • Copyright © 1999-2021 the12volt.com, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
Support the12volt.com
Top
the12volt.com spacer
the12volt.com spacer