Tach signal for remote starter install: help please
#31
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I believe I found the wire that triggers the lock/unlock.
It is a blue/black wire in the blue wiring harness that comes from the driver's door into the cabin.
So now I just connect this cable to my lock/unlock cable? I'll try that, but I thought I needed to identify which was the ground cable for the lock function.
It is a blue/black wire in the blue wiring harness that comes from the driver's door into the cabin.
So now I just connect this cable to my lock/unlock cable? I'll try that, but I thought I needed to identify which was the ground cable for the lock function.
Once you find the proper wire, I think the remaining 3 wires are in the same bundle.
#32
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Suneet--to clarify, to find each of the 4 wires you're looking for: lock/unlock arm/disarm:
Each of these wires will become ground ONLY as long as the button/key is held in that position...once you release the corresponding button, the wire is no longer ground. Think of it as looking for a latched ground wire, dependent on which button/key position is pressed.
I'm not certain that the wires will go ground if the harness is unplugged, but if you found it that way, please post here.
Each of these wires will become ground ONLY as long as the button/key is held in that position...once you release the corresponding button, the wire is no longer ground. Think of it as looking for a latched ground wire, dependent on which button/key position is pressed.
I'm not certain that the wires will go ground if the harness is unplugged, but if you found it that way, please post here.
#33
Lexus Champion
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Thanks for clarifying what to look for. So the process is still tough because there are 3 harnesses that come from the door.
Removing the blue harness stops power locks from working all together: when you press the b utton on the drivers side door, it does nothing, and when you turn the key, it only locks/unlocks that door
So this seemed like the bes tplace to start. However, I can't find the cables becuase in the blue harness there are only two cables that show +12v when plugged in and nothing is happening.
When I press lock/unlock, nothing happens to these wires.
So I'm confused..
Removing the blue harness stops power locks from working all together: when you press the b utton on the drivers side door, it does nothing, and when you turn the key, it only locks/unlocks that door
So this seemed like the bes tplace to start. However, I can't find the cables becuase in the blue harness there are only two cables that show +12v when plugged in and nothing is happening.
When I press lock/unlock, nothing happens to these wires.
So I'm confused..
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#34
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I don't think the wires of interest necessarily show +12 when not activated--they are kind of "floating".
I suspected as much from your unplugging the harnesses--I think they need to remain plugged in. That's why the needle-style probe is so helpful: you can test the wires without stripping the insulation back.
I may not be able to get to it this weekend, but if you still don't have it sorted out I can try to see if I can get my car apart enough to find the proper door wires.
I suspected as much from your unplugging the harnesses--I think they need to remain plugged in. That's why the needle-style probe is so helpful: you can test the wires without stripping the insulation back.
I may not be able to get to it this weekend, but if you still don't have it sorted out I can try to see if I can get my car apart enough to find the proper door wires.
#35
Lexus Champion
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Okay, after much investigation, I decided to try what DEI recoomended, and it worked!
Turns out my 94 might be a little different than your 91. I used the yellow-green and green wires on the blue connector on the PASSENGER side and my locks now work.
I just need to wire the arm and disarm cables now, get the parking lights.. and then I'm ready to attack the remote start.
Turns out my 94 might be a little different than your 91. I used the yellow-green and green wires on the blue connector on the PASSENGER side and my locks now work.
I just need to wire the arm and disarm cables now, get the parking lights.. and then I'm ready to attack the remote start.
#36
Lexus Champion
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Yeah akxx, I realized that, I was using the probes with the harnesses plugged in to see what they were reading.. I don't know, maybe my meter wasn't sensitive enough to register the differences? Not sure.
The wires that I tried. I couldn't get any reading off of them either.. I just tried attaching them becuase the DEI manual said so, so I figured I had nothing to lose.. and it worked.
The wires that I tried. I couldn't get any reading off of them either.. I just tried attaching them becuase the DEI manual said so, so I figured I had nothing to lose.. and it worked.
#37
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Well whaddya know--the 94 and 90 had different wiring. Or you found more accurate wiring info than I had (I used DEI's wiring guide and Bulldog's--both corroborated with each other).
I know for a fact that the wiring listed for 1990 LS is not correct!
You are so close now Suneet!
I know for a fact that the wiring listed for 1990 LS is not correct!
You are so close now Suneet!
#38
Lexus Champion
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Allright, I finally got it!
It turns out all the DEI wiring info is correct, and it is also available at www.the12volt.com (click on vehicle wiring).
I got my remote start working. One of my friends helped me and we've been at it all night long.
I haven't been able to test out all the alarm features, so I'm not sure those are all working. I also didn't wire in all the alarm inputs (like hood trigger, trunk trigger).. but I did wire the door trigger.
My power tilt isn't working anymore, but I think I may have just blown a fuse.
I'm gonna get all the body panels back in and see how it goes.
It turns out all the DEI wiring info is correct, and it is also available at www.the12volt.com (click on vehicle wiring).
I got my remote start working. One of my friends helped me and we've been at it all night long.
I haven't been able to test out all the alarm features, so I'm not sure those are all working. I also didn't wire in all the alarm inputs (like hood trigger, trunk trigger).. but I did wire the door trigger.
My power tilt isn't working anymore, but I think I may have just blown a fuse.
I'm gonna get all the body panels back in and see how it goes.
#40
Lexus Champion
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Hey Akxx, I haven't done the tach learnign yet.. I'm still wiring stuff in my car so I keep disconnecting the battery, etc. I will do it as soon as it is all put together.
Thanks a lot for all your help.
I think I have the alarm just the way I want it. My stock alarm works (it wasn't working for a while), so I'm happy about that. I've got my trunk release, remote start, and keyless entry.
The only thing I think that I left out was wiring the factory "disalarm" wire to the Clifford alarm so when someone unlocks the car with a key, the clifford alarm doesn't trigger. I still have to test this out a bit. I was getting intermittent results.
Thanks a lot for all your help.
I think I have the alarm just the way I want it. My stock alarm works (it wasn't working for a while), so I'm happy about that. I've got my trunk release, remote start, and keyless entry.
The only thing I think that I left out was wiring the factory "disalarm" wire to the Clifford alarm so when someone unlocks the car with a key, the clifford alarm doesn't trigger. I still have to test this out a bit. I was getting intermittent results.
#41
Lexus Champion
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There is one thing I noticed. The reccomended door trigger signal isn't a door trigger. Its just always positive, with the doors opened or the doors closed. Not sure what the door trigger is just yet.
#43
Lexus Champion
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I want to use the door trigger for the alarm. My remote is a 2-way paging model so I can see when the door is open on the remote.
Additionally, when someone unlocks the door with a key, I want the alarm toknow it has been disarmed. Right now it still thinks it is armed, and so I have to unarm it and rearm it again if I used a key.
Additionally, when someone unlocks the door with a key, I want the alarm toknow it has been disarmed. Right now it still thinks it is armed, and so I have to unarm it and rearm it again if I used a key.
#44
Lexus Champion
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Hey Akxx,
I've got my remote start working.. but when the car turns on, the climate control does not come on. Neither do the headlights or the display. My stereo turns on b/c its fused to the acc, but I'm not sure why my climate control won't come on.
What did I wire wrong?
Also, did you get the anti-grind circuitry working? Mine doesn't work, so if I accidentally turn the key after I've started the car... it grinds. I think you have to wire inside the key cylinder... I wasn't sure how to get in there.
I've got my remote start working.. but when the car turns on, the climate control does not come on. Neither do the headlights or the display. My stereo turns on b/c its fused to the acc, but I'm not sure why my climate control won't come on.
What did I wire wrong?
Also, did you get the anti-grind circuitry working? Mine doesn't work, so if I accidentally turn the key after I've started the car... it grinds. I think you have to wire inside the key cylinder... I wasn't sure how to get in there.
#45
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I didn't use anti-grind, since I never had a problem with grinding in my previous cars with remote-start.
There are 2 accessory wires in the ignition harness--did you wire both in? This may explain why your climate control isn't working. Also, only the parking lights should come on (default for DEI is to blink every second, but I set mine for constant on.)
There are 2 accessory wires in the ignition harness--did you wire both in? This may explain why your climate control isn't working. Also, only the parking lights should come on (default for DEI is to blink every second, but I set mine for constant on.)