|
|
|
Your donations help keep this valuable resource free and growing. Thank you.
|
Need dash wiring help |
Post Reply 
|
| Author | |
JohnRyd 
Supporter of TheAMCForum 
Joined: Aug/18/2013 Location: Newark, DE Status: Offline Points: 336 |
 Post Options
 Thanks(0)
 Quote Reply
 Topic: Need dash wiring helpPosted: Sep/26/2020 at 11:16am |
|
I'm in the final stages of getting my 1972 Ambassador back on the road after sitting in the garage for about 30 years. In order to facilitate replacement of the evaporator and re-insulating the internal dampers and AC duct I removed the dash. Before and during I took a ton of pictures, but apparently not enough.
I have a TSM. The wiring diagram doesn't appear to show these or else I missed them. Parts book illustrations doesn't help either. Wiring harness routing in TSM also not helpful. I have almost everything in place except for the center duct, ashtray and glove box. Everything that was removed and reinstalled works (except for the clock - it has power). The AC works great!! Before I totally button it up I want to be sure I am not forgetting something. There are several wires left with nowhere to connect as for as I can tell. I've attached a picture of the wires. Hopefully someone can clue me in where they go if anywhere. Possibly AMC used a common harness for a few different models and options. 1. Relay with yellow and blue wire: What is it for and where was it attached to the dash? 2. Black bullet connector? I already have connected the cigar lighter so it's not that or any of the lights. 3. Black single spade connector? 4. Triple bullet connector with black, green and white wires? 5. Double spade connector? A similar one is already connected to the AC T-stat, and it's working fine. 6. Connector with yellow and blue/white tracer wires? 7. Connector with yellow and black wires? I do feel good that after all this work I don't have a can of "leftover parts" - just leftover wires. Any help is appreciated. Adolph John Rydzewski Newark, Delaware  Edited by JohnRyd - Sep/26/2020 at 12:32pm |
|
|
Adolph John Rydzewski
Newark, Delaware 1972 Ambassador 4dr Brougham, 360/2BBL/727 purchased new 1968 AMX 390/Auto 1957 Hudson Hollywood 327/Auto 1975 Cadillac Eldorado 1992 Lumina Z34 5 speed |
|
 |
|
|
turbo
AMC Addicted 
Joined: Oct/26/2008 Location: chicago area Status: Offline Points: 2568 |
Post Options
Thanks(0)
Quote Reply
Posted: Sep/26/2020 at 11:33am |
|
Nothing specific from me but everyone here is going to harp on you relentlessly to obtain a factory service manual for your model.
|
|
|
they call me Capt RETIRED!
|
|
|
|
|
JohnRyd
Supporter of TheAMCForum
Joined: Aug/18/2013 Location: Newark, DE Status: Offline Points: 336 |
Post Options
Thanks(0)
Quote Reply
Posted: Sep/26/2020 at 11:39am |
|
Thanks, good point - should have noted that! Thanks, Adolph John
|
|
|
Adolph John Rydzewski
Newark, Delaware 1972 Ambassador 4dr Brougham, 360/2BBL/727 purchased new 1968 AMX 390/Auto 1957 Hudson Hollywood 327/Auto 1975 Cadillac Eldorado 1992 Lumina Z34 5 speed |
|
|
|
|
troutwilly
AMC Addicted
Joined: Sep/14/2007 Location: Carriere, MS Status: Offline Points: 992 |
Post Options
Thanks(0)
Quote Reply
Posted: Sep/26/2020 at 10:07pm |
|
Some ideas: 1.) What you're calling a relay looks more like a circuit breaker. Yellow and blue wires were usually associated with tachs. 2.) Does your cigarette lighter work. That could be the ground wire for it. 3.) Probably a ground. 4.) Double blacks again probably grounds. Could the green and white be associated with the back up lights. 5.) Again a black ground with a gray. Could be for rear speakers, non stereo. 6.) Again, blue and yellow could be associated with a tach option. 7.) No idea. Just a black to ground. You could check connectors/wires for continuity to verify the blacks are grounds. Also check the voltage in the other wires with key in off, on, and run positions to narrow down possibilities. And on the wiring diagrams, the optional accessories were usually on the back side or other pages adjacent to the main wiring diagram. You just need to trace every color wire on the diagram from beginning to end to see where it makes a connection. The wire colors sometimes change on the other connector. Good luck.
|
|
|
Bill O.
70 AMX |
|
|
|
|
JohnRyd
Supporter of TheAMCForum
Joined: Aug/18/2013 Location: Newark, DE Status: Offline Points: 336 |
Post Options
Thanks(0)
Quote Reply
Posted: Sep/27/2020 at 6:56am |
|
Bill,
Thanks for the info. It has helped. What has me scratching my head is all the gauges, lights and accessories work. The cigar lighter works. There is no tach. After looking at the wiring diagram again, it shows a connection for "three on the tree" back up lights and a different connection for the Matador heater blower. At this point I'll go ahead and carefully place them back behind the dash and finish the reassembly. Again THANKS ! Adolph John Rydzewski Newark, Delaware
|
|
|
|
|
george w
Supporter of TheAMCForum
Joined: Jan/27/2013 Location: New Jersey Status: Offline Points: 2899 |
Post Options
Thanks(0)
Quote Reply
Posted: Sep/27/2020 at 7:02am |
|
Black, green white connector is for radio/speakers connection, probably going to or from the fader
|
|
|
Long time AMC fan. Ambassador 343, AMX 390, Hornet 360, Spirit 304 and Javelin 390. All but javelin bought new.
|
|
|
|
|
JohnRyd
Supporter of TheAMCForum
Joined: Aug/18/2013 Location: Newark, DE Status: Offline Points: 336 |
Post Options
Thanks(0)
Quote Reply
Posted: Sep/28/2020 at 1:32pm |
|
Got two identified. Thanks to Bill (troutwilly) for identifying what I said was a relay as really a circuit breaker. Although the gauges and dash mounted items work, I tried the power windows and they did not.
Section 15 of the TSM, troubleshooting said a disconnected ground may be the problem. Guess what? Slowly getting it back together. Adolph John Rydzewski  |
|
|
|
|
6PakBee
Supporter of TheAMCForum
Charter Member Joined: Jul/01/2007 Location: North Dakota Status: Offline Points: 5457 |
Post Options
Thanks(0)
Quote Reply
Posted: Sep/28/2020 at 9:01pm |
|
The secret to solving electrical problems is having a wiring diagram and then proceeding in a methodical, systematic route from one circuit point to another. Very rarely does the "poke and hope" or the "I've changed everything" approach work.
|
|
|
Roger Gazur
1969 'B' Scheme SC/Rambler 1970 RWB 4-spd Machine 1970 Sonic Silver auto AMX All project cars. Forum Cockroach |
|
|
|
|
Mopar_guy
Supporter of TheAMCForum
Joined: Jun/07/2009 Location: Ohio Status: Offline Points: 4826 |
Post Options
Thanks(0)
Quote Reply
Posted: Sep/29/2020 at 9:38am |
Man if that isn’t the truth! Trying to get people to listen to that is the problem.
 |
|
|
|
|
Post Reply
|
|
Tweet
|
| Forum Jump | Forum Permissions 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 |
Click for TheAMCForum Rules
Topic Options
6PakBee wrote: