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keyless and door switch complete pics

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=96329
Printed Date: May 20, 2024 at 12:39 AM


Topic: keyless and door switch complete pics

Posted By: frans-c
Subject: keyless and door switch complete pics
Date Posted: August 11, 2007 at 3:47 PM

Quite a few moons ago, I mentioned that I wanted to install a door lock switch - the reason being that the Valet 712T keyless entry system locks all the doors as soon as you turn the ignition, with the result that if somebody wanted to climb in afterwards, I had to virtually dislocate my shoulder trying to open up the other doors posted_image !

Well, I bought a normally horizontal sunroof switch for about $57. I had my first problem, however...the switch uses a fiber optic cable for its illumination, and as far as I could tell, I didn't have any "ports" open for an additional optic cable. So, off to the junk yard I went to buy a rear-door window switch and did some minor transplant surgery between the two switches.

With that sorted, I had to try and figure out how I had to connect the switch with the keyless module. I think I had it sorted for the most part, until I had to connect the window-aka-sunroof-aka-door-lock-switch to the module. I though I knew which connectors on the window switch to use, but I was too lazy to walk the few feet back to my room to double check the wiring diagram. Well, I ended up frying the locking circuit of the keyless module and a few of the door lock motors...another $70 literally up in smoke (and there was quite a bit of smoke, let me tell you!) posted_image .

So, I ordered another module from the US, this time triple-checking everything. I also connected the horn-honk output. I have a proper set of horns, and let me tell you, when you press the panic button on the remote, it makes a good few decibels posted_image ! In total, I used six relays in addition to the module.

Well, the switch works great (it's the second one to the left, if you're wondering)...I just wonder whether it was worth all the effort!

posted_image

posted_image

P.S. Those crimp connections are SOLID! If you can't pull apart a crimp from its wire with a set of pliers, I believe the connection to be quite solid. I must say that the crimping tool on the left doesn't compare to the one that I use on the right - I think it's the best crimping tool for insulated crimps.

posted_image



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F R A N S
1985 Mercedes-Benz 230E
320 000 km / 199 000 miles
Full MB Service History



Replies:

Posted By: KPierson
Date Posted: August 11, 2007 at 5:07 PM

Looks good, adding a door lock/unlock switch is a nice compliment to the keyless system.

I would recomend wrapping all those crimp connects on the bottom of the relays with some tape, just to be ont the safe side!



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Kevin Pierson




Posted By: frans-c
Date Posted: August 12, 2007 at 1:24 AM
KPierson wrote:

I would recomend wrapping all those crimp connects on the bottom of the relays with some tape, just to be ont the safe side!



KP, I actually wanted to use insulated crimps, but for some strange reason none of the outlets I tried, had red insulated female crimps in stock. But yes, I agree, perhaps I should tape those ends.

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F R A N S
1985 Mercedes-Benz 230E
320 000 km / 199 000 miles
Full MB Service History




Posted By: fkelsey
Date Posted: August 12, 2007 at 4:54 PM
Outstanding it's nice to see someone always thinking. As for your smoke majicposted_image like I always say I learn more from my mistakes than my sucess.

Good Job Frank




Posted By: howie ll
Date Posted: August 12, 2007 at 6:09 PM

Nice photos, it's nice to see someone trying hard like yourself, NB If you can only get blue terminals, double over the wiring inside! I also know what you did with the window switch because  the Benz factory switch rests on LIVE! Turn round live and ground and loose the illumination!

P.S. I only use the left hand crimper for non-insulated terminals and have a french Facom crimp tool for insulated crimps,N.B. the UK Thatcham rating is I believe  the ability to withstand 9lbs pull on the connector before coming adrift.






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