Engine start button
06-14-09, 07:26 PM
#1
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Engine start button
i always want to try this in the rx300, only reason why is because i have been thur 6 broken key remote and its really irritating me. anyways do i need to bypass this before i do this? or can i just install it direct.
06-15-09, 09:30 AM
#3
Moderator
The ignition key has more function than the energizing the starter ...
Significantly:
Steering lock
Test cycle for dash lamps.
Priming up of fuel delivery when the key is engaged.
Getting in to various settings with ignition key inserted (sequence of events).
Park-ignition iterlock as well as you can not accidentally remove key.
Accessory position
Cut out all the acc during start to prevent voltage spike from alternator.
Imobilizer sensor near ignition key .. needs key near it and not in your pocket.
Solve the above and then you can put in the push button.
Salim
Significantly:
Steering lock
Test cycle for dash lamps.
Priming up of fuel delivery when the key is engaged.
Getting in to various settings with ignition key inserted (sequence of events).
Park-ignition iterlock as well as you can not accidentally remove key.
Accessory position
Cut out all the acc during start to prevent voltage spike from alternator.
Imobilizer sensor near ignition key .. needs key near it and not in your pocket.
Solve the above and then you can put in the push button.
Salim
06-15-09, 01:15 PM
#4
Lexus Champion
The ignition key has more function than the energizing the starter ...
Significantly:
Steering lock
Test cycle for dash lamps.
Priming up of fuel delivery when the key is engaged.
Getting in to various settings with ignition key inserted (sequence of events).
Park-ignition iterlock as well as you can not accidentally remove key.
Accessory position
Cut out all the acc during start to prevent voltage spike from alternator.
Imobilizer sensor near ignition key .. needs key near it and not in your pocket.
Solve the above and then you can put in the push button.
Salim
Significantly:
Steering lock
Test cycle for dash lamps.
Priming up of fuel delivery when the key is engaged.
Getting in to various settings with ignition key inserted (sequence of events).
Park-ignition iterlock as well as you can not accidentally remove key.
Accessory position
Cut out all the acc during start to prevent voltage spike from alternator.
Imobilizer sensor near ignition key .. needs key near it and not in your pocket.
Solve the above and then you can put in the push button.
Salim
Last edited by code58; 06-15-09 at 03:04 PM.
06-15-09, 04:41 PM
#5
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Salim (and Lexus 1144)- I believe what he was saying is he wanted to get rid of the stress on the key of twisting to start. He would still use the key for ignition and the other things you mentioned. Just trying to keep from having to buy housings. With a "start' button installed, he would get rid of the major destroyer of the remote housings. He would have to deal with the acc. that are fed with the key in ignition position that are cut out in start position but that could probably be done with one or more relays, if necessary, triggered by the start button.
06-15-09, 05:21 PM
#6
Moderator
imho; the most stressful condition is when the steering lock cog is stuck and the other is when you insert or remove the key ... the back pressure in start is very little.
It boils down to style and preference, so what ever makes you happy.
Salim
It boils down to style and preference, so what ever makes you happy.
Salim
06-15-09, 05:37 PM
#7
So you still would insert the key into the dash, but have a secondary button also on the dash that you would press instead of twist the key? Sounds interestingly interesting to me. I LIKE IT !!! Factory push-button is best, but this would be a good alternative. Although, I don't think saves any time, probably uses a few extra seconds more time as you'd still have fumble to find the hole, insert the key, then look for the button to push. Whereas right now, once you insert the key, you twist.
Anyway, I LIKE IT... so do it and send some pics here.
Anyway, I LIKE IT... so do it and send some pics here.
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06-15-09, 06:27 PM
#8
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so no need to bypass..alright..well thanks..i just need it cuz im going thur 6 new housing lexus keys and that the dumbest remote housing have ever made
06-15-09, 11:39 PM
#9
Moderator
You still need to mimic the conditions ... ign-key in run position .. when button pressed to start, you not only energize the starter BUT also disconnect all the connections that would have been disconnected when the key is moved to start. Not a trivial task, but can be done. Lot of people would shy away from cutting into harness.
I would suggest lap - 2 twist minimum, wind a thin strand of wire over the lap, solder and then shrink tubing.
@@@@@@@@ shrink tubing
###vvvv#### #is fodder [spaces are chomped] v is up/down thin wire winding.
====~~~==== = is the insulated wire. ~ is the 2 twist (minimum) lap joint
###^^^#### wire winding coming around
@@@@@@@@ solder not shown.
My shell cracked as the key was dropped. Once cracked, it can not handle the torque of just unlocking the door.
Good luck.
Salim
I would suggest lap - 2 twist minimum, wind a thin strand of wire over the lap, solder and then shrink tubing.
@@@@@@@@ shrink tubing
###vvvv#### #is fodder [spaces are chomped] v is up/down thin wire winding.
====~~~==== = is the insulated wire. ~ is the 2 twist (minimum) lap joint
###^^^#### wire winding coming around
@@@@@@@@ solder not shown.
My shell cracked as the key was dropped. Once cracked, it can not handle the torque of just unlocking the door.
Good luck.
Salim
Last edited by salimshah; 06-16-09 at 12:00 AM.
06-15-09, 11:57 PM
#10
Lexus Champion
If you have any reason to have interest in doubling as a security device, I'll PM you the details.
Last edited by code58; 06-16-09 at 12:13 AM.
06-16-09, 12:06 AM
#11
Lexus Champion
So you still would insert the key into the dash, but have a secondary button also on the dash that you would press instead of twist the key? Sounds interestingly interesting to me. I LIKE IT !!! Factory push-button is best, but this would be a good alternative. Although, I don't think saves any time, probably uses a few extra seconds more time as you'd still have fumble to find the hole, insert the key, then look for the button to push. Whereas right now, once you insert the key, you twist.
Anyway, I LIKE IT... so do it and send some pics here.
Anyway, I LIKE IT... so do it and send some pics here.
06-16-09, 04:54 AM
#12
Like a giant
hem... if this person went through 6 housings, then I'm thinking they're either very rough with things, have huge hands, or is built like Andre the Giant. So, with a button then, wouldn't they end up breaking the button? 
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