Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
I'm able to crank the engine even with unfastened belts #56669
04/18/08 01:59 PM
04/18/08 01:59 PM
Joined: Aug 2007
Posts: 6,089
Valencia, España
NachoRT74 Offline OP
master
NachoRT74  Offline OP
master

Joined: Aug 2007
Posts: 6,089
Valencia, España
what you read. All troubleshooting guides talks about when you ARE NOT able to crank engine even with fastened seatbelts, but no one talks about what is wrong if I'm able to crank the engine with unfastened seatbelts.


what could it be wrong ?


With a Charger born in Chrysler assembly plant in Valencia, Venezuela
Re: I'm able to crank the engine even with unfastened b [Re: NachoRT74] #56670
04/18/08 02:10 PM
04/18/08 02:10 PM
Joined: Mar 2005
Posts: 1,373
Rancho Cucamonga, CA
D_C Offline
pro stock
D_C  Offline
pro stock

Joined: Mar 2005
Posts: 1,373
Rancho Cucamonga, CA
What Vehicle, What Year, and why do you care?

I disabled my Seat-Buzzer as soon as I could figure out how to do it.

That said, I always wear my Seat-Belt (just don't like the "Nanny" buzzer.)

Re: I'm able to crank the engine even with unfastened b [Re: D_C] #56671
04/18/08 02:13 PM
04/18/08 02:13 PM
Joined: Aug 2005
Posts: 4,861
Riverside, Ca
R70RUNNER Offline
master
R70RUNNER  Offline
master

Joined: Aug 2005
Posts: 4,861
Riverside, Ca


EDIT:Ok he's serious... I'll retract my smart azz comment. Still don't understand why anyone would want that system to function

Get the 12v tester out and start at one end of the wiring and work to the other.

Last edited by R70RUNNER; 04/18/08 03:14 PM.

Current cars: 2000 Dak Quad Cab, 2012 Challenger,1970 Road Runner, 1994 Firehawk


1966 Coronet post sedan, 1988 Corvette, 2005 Magnum RT all SOLD

R70RUNNER<---VP Inland Empire Chapter of the MPM
Re: I'm able to crank the engine even with unfastened b [Re: D_C] #56672
04/18/08 02:23 PM
04/18/08 02:23 PM
Joined: Aug 2007
Posts: 6,089
Valencia, España
NachoRT74 Offline OP
master
NachoRT74  Offline OP
master

Joined: Aug 2007
Posts: 6,089
Valencia, España
74 Charger

I do care because:

-No one thief will fasten the seatbelt and never wonder what does happen.

-I like to have everything working as must be.

-I usually fights with passengers ( usually women ) to carry on fastened seatbelts, so CAR WON'T START UNTILL FASTEN... If she wants to ride, has to fasten it.


With a Charger born in Chrysler assembly plant in Valencia, Venezuela
Re: I'm able to crank the engine even with unfastened b [Re: NachoRT74] #56673
04/18/08 02:34 PM
04/18/08 02:34 PM
Joined: Sep 2005
Posts: 12,481
Chino Valley
RodStRace Offline
I Live Here
RodStRace  Offline
I Live Here

Joined: Sep 2005
Posts: 12,481
Chino Valley
pull up a wiring diagram, and look for the interlock. I'd guess that someone has bypassed the circuit next to the belt, or where they terminate.

Re: I'm able to crank the engine even with unfastened b [Re: RodStRace] #56674
04/18/08 02:47 PM
04/18/08 02:47 PM
Joined: Aug 2007
Posts: 6,089
Valencia, España
NachoRT74 Offline OP
master
NachoRT74  Offline OP
master

Joined: Aug 2007
Posts: 6,089
Valencia, España
I already have lot of info that I already posted on 3rd gen charger website by myself... and maybe there some language stuff that I'm not getting.

Just added on to my car because my car assemblied in Venezuela didn't came with that stuff. Was working at first instance but not anymore


With a Charger born in Chrysler assembly plant in Valencia, Venezuela
Re: I'm able to crank the engine even with unfastened belts [Re: NachoRT74] #56675
04/18/08 02:47 PM
04/18/08 02:47 PM
Joined: Oct 2007
Posts: 2,886
US of A
A38s! Offline
master
A38s!  Offline
master

Joined: Oct 2007
Posts: 2,886
US of A
Off the top of my head; It may depend on the build date. The seatbelt interlock was immediately unpopular, and Ma discontinued the feature. Yours may be just fine as it is...

(edit) Just read your reply. Nevermind. Export and SoAm market could have been a whole nother ball of wax.

Last edited by Chief-Kikerdown; 04/18/08 02:52 PM.
Re: I'm able to crank the engine even with unfastened belts [Re: A38s!] #56676
04/18/08 02:51 PM
04/18/08 02:51 PM

A
Anonymous
Unregistered
Anonymous
Unregistered
A



Some ramblings from the past.

1 Be a man in your own car. If passengers won't buckle up, then don't start the car.

2 If you've ever suffered through a carjacking, you'll wish you COULD start the car in a hurry

3 There are much better anti-theft measures, namely, a hidden switch that breaks the wiring or shuts off the fuel pump

Re: I'm able to crank the engine even with unfastened belts [Re: A38s!] #56677
04/18/08 02:56 PM
04/18/08 02:56 PM
Joined: Jan 2004
Posts: 27,347
Today? Who Knows?
1_WILD_RT Offline
Management Trainee
1_WILD_RT  Offline
Management Trainee

Joined: Jan 2004
Posts: 27,347
Today? Who Knows?
The sensors are in the front seats, they start as a closed circut & when a person sits in them the circut opens...if they aren't working then fot what ever reason the circut isn't seeing an open circut, to pinpoint try unpluging the seat sensors, that would create a open & the starter shouldn't crank..If it still does the you've veried the problem is elsewhere so you'll need to move to the starter interupt relay...I can't tell you where that would be on your Charger but at least you have a direction to try...Good Luck..

Re: I'm able to crank the engine even with unfastened b [Re: NachoRT74] #56678
04/18/08 02:59 PM
04/18/08 02:59 PM
Joined: Mar 2005
Posts: 1,373
Rancho Cucamonga, CA
D_C Offline
pro stock
D_C  Offline
pro stock

Joined: Mar 2005
Posts: 1,373
Rancho Cucamonga, CA
Agree with above...

Not sure on a '74, but there "may" be a seat weight-sensor that consists of a wire stretched across the underside of each front seat.

It may be broken or the sensor might be broken.

There is also a sensor in the seat-belt connector. It must be linked to a starter interlock.

Do you have the 1974 Dodge Chassis Service Manual? There should be an electrical troubleshooting section.

Re: I'm able to crank the engine even with unfastened b [Re: D_C] #56679
04/18/08 03:07 PM
04/18/08 03:07 PM
Joined: Jul 2006
Posts: 609
a cornfield near you
B
BlakDak Offline
mopar
BlakDak  Offline
mopar
B

Joined: Jul 2006
Posts: 609
a cornfield near you
my 73 you just unplugged the sensor under the seat.

but it only buzzed at you for a moment, and would still start.


The 74's had a button under the hood.... and the cars I have ran across with it still on it, usually were wire, taped or zip tied so the car would start

Re: I'm able to crank the engine even with unfastened b [Re: BlakDak] #56680
04/18/08 06:37 PM
04/18/08 06:37 PM
Joined: Aug 2007
Posts: 6,089
Valencia, España
NachoRT74 Offline OP
master
NachoRT74  Offline OP
master

Joined: Aug 2007
Posts: 6,089
Valencia, España
some replies to your comments:

SoAm ( at least Venezuelan ) cars didn't have the interlock system... I just got from USA cars since I'm "cloning" for a complete 74 USA car with all real stuff, nothing bypassed.

So, to your thoughts, nothing is bypassed, cut or modified simplye because just recently I made the installation and worked at first instance. Simply suddenly one day stop to work like it should be.

The fact you don't like interlock doesn't mean I can get it working as must be

I made all testing explained on FSM manual ( I got emailed that section ) and everything takes me to a damaged control unit, but just partially because the logical circuit what makes work the warning signals is working like a clock, buzzing/lighting when I try to crank and when I gear. Just that shouldn't crank, but is cranking. I have been analizing the printed board inside interlock and does look could it be a diode or transistor went bad. There is a BIG transistor what links the starter circuit. Have to seartch further thought.

I say the logical circuit, including sensors, is working perfect simply by the fact all sensors are sensing... seats, buckles, making work the light and buzzer on the right moments.

BTW what I have experienced with interlock system and if everything was good in the fisrt, as far seats sensors doesn't send signal, you can crank engine, so for a fast start up, simply start before sit

Last edited by NachoRT74; 04/18/08 07:14 PM.

With a Charger born in Chrysler assembly plant in Valencia, Venezuela
Re: I'm able to crank the engine even with unfastened b [Re: NachoRT74] #56681
04/19/08 09:20 PM
04/19/08 09:20 PM
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
DaytonaTurbo Offline
Too Many Posts
DaytonaTurbo  Offline
Too Many Posts

Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
IIRC the seat-belt interlock was brought in for the 73 model year and dropped sometime in the 74 model year. I've owned two 74's that had no evidence of the seat belt interlock system.

Re: I'm able to crank the engine even with unfastened b [Re: DaytonaTurbo] #56682
04/19/08 10:00 PM
04/19/08 10:00 PM
Joined: Oct 2005
Posts: 9,065
Milwaukee, WI
In_The_Pink Offline
master
In_The_Pink  Offline
master

Joined: Oct 2005
Posts: 9,065
Milwaukee, WI
Hmmm, I just found an interlock control unit for Nacho in a 5-74 build-date Satellite Sebring... That's getting pretty late in the model year.

Re: I'm able to crank the engine even with unfastened b [Re: DaytonaTurbo] #56683
04/20/08 02:38 PM
04/20/08 02:38 PM
Joined: Aug 2007
Posts: 6,089
Valencia, España
NachoRT74 Offline OP
master
NachoRT74  Offline OP
master

Joined: Aug 2007
Posts: 6,089
Valencia, España
I have known more in 75 than in 74

for a late 74 control unit I have an orange box, what is supposelly is a canadian unit and is not interlocked, but works the advertising functions. already mounted and works as stated just for buzzer and lights advertising signals PN 3501371

My conclusion about is a canadian unit was simply because I got the rallye harness from a Canadian Guy on ebay ( about 4 years ago ) with the control box attached

on Mopar parts catalog this orange unit is stated like to AUTO and also MANUAL cars after 2-01-74

In_The_Pink...the one you grabbed me with PN 3746849 is labeled to Manual cars ( excepy C bodies ) from 10-28-73 to 4-01-74

the is the actually one I have with interlock function apparently damaged:


this are two one ebay right now:
http://cgi.ebay.com/ebaymotors/AMC-SEAT-...5QQcmdZViewItem
http://cgi.ebay.com/ebaymotors/NOS-MoPar...9QQcmdZViewItem

the AMC one ( that was the reason I made a thread about earlier ) carries the manual boxes color to Mopars, but seller doesn't have specs for what cars was used/designed


With a Charger born in Chrysler assembly plant in Valencia, Venezuela
Re: I'm able to crank the engine even with unfastened b [Re: D_C] #56684
04/20/08 03:34 PM
04/20/08 03:34 PM
Joined: Jun 2005
Posts: 1,534
Florida
C
CHRGR69 Offline
pro stock
CHRGR69  Offline
pro stock
C

Joined: Jun 2005
Posts: 1,534
Florida
Quote:

What Vehicle, What Year, and why do you care?

I disabled my Seat-Buzzer as soon as I could figure out how to do it.

That said, I always wear my Seat-Belt (just don't like the "Nanny" buzzer.)




Grandma always said I had "hands of gold"!
Re: I'm able to crank the engine even with unfastened b [Re: CHRGR69] #56685
04/20/08 06:10 PM
04/20/08 06:10 PM
Joined: Oct 2005
Posts: 9,065
Milwaukee, WI
In_The_Pink Offline
master
In_The_Pink  Offline
master

Joined: Oct 2005
Posts: 9,065
Milwaukee, WI
Here's the one I grabbed:



Hard to read as the ink stamp is faded, but it's part number 3746849, date code 1334, and the door sticker on the car it was removed from had a date of 5-74:




I'm 99% sure the car was an automatic and it was definitely a slant six.


on

Some people don't understand why others like to keep things the way the factory made it, or even just use factory items that were never on their vehicles. If it's a palin jane Belvedere and someone wants to clone it into a Hemi GTX, people start and saying what a great idea it is. When someone wants to add some obscure factory equipment that isn't flashy, sexy or flavor-of-the-month, they don't understand . isn't for everyone- some people like obscure and unique. I'll help you all I can Nacho, cuz this is the type of thing I enjoy reading about and watching others do. Keep plugging away and you'll get it figured out eventually. Someone might even learn a thing or two reading about what you find.

off

Re: I'm able to crank the engine even with unfastened b [Re: In_The_Pink] #56686
04/20/08 11:01 PM
04/20/08 11:01 PM
Joined: Aug 2007
Posts: 6,089
Valencia, España
NachoRT74 Offline OP
master
NachoRT74  Offline OP
master

Joined: Aug 2007
Posts: 6,089
Valencia, España
LOL... thanks for you support!!!

/6 with auto and white box ? maybe somebody simply fit that one as working replacement ?


With a Charger born in Chrysler assembly plant in Valencia, Venezuela
Re: I'm able to crank the engine even with unfastened b [Re: NachoRT74] #56687
05/03/08 04:11 PM
05/03/08 04:11 PM
Joined: Aug 2007
Posts: 6,089
Valencia, España
NachoRT74 Offline OP
master
NachoRT74  Offline OP
master

Joined: Aug 2007
Posts: 6,089
Valencia, España
ok two harnesses with white box, suposelly from auto cars.

http://cgi.ebay.com/ebaymotors/71-74-sat...0247613708&

http://cgi.ebay.com/ebaymotors/74-Plymou...0245539094&

but this FSM section states should it be blue on autoand shouldn't be interchanged!




With a Charger born in Chrysler assembly plant in Valencia, Venezuela
Re: I'm able to crank the engine even with unfastened b [Re: NachoRT74] #56688
06/03/08 10:13 PM
06/03/08 10:13 PM
Joined: Oct 2005
Posts: 9,065
Milwaukee, WI
In_The_Pink Offline
master
In_The_Pink  Offline
master

Joined: Oct 2005
Posts: 9,065
Milwaukee, WI
Here's one I found in a '75 C-body (New Yorker, maybe? ):





I will find a blue one yet!

Page 1 of 2 1 2






Powered by UBB.threads™ PHP Forum Software 7.7.1