Year One Dash Harness Wired Incorrectly...
#424140
07/30/09 05:05 PM
07/30/09 05:05 PM
|
Joined: Jul 2006
Posts: 139
MA
limelight440
OP
member
|
OP
member
Joined: Jul 2006
Posts: 139
MA
|
I have been chasing a strange elec. problem to find today that my new dash harness is wired incorrectly. Please double check me if you can. Symptom: Emergency flasher flashes side markers also. With running or headlights on, side markers stay lit (do not blink) even with emergency flashers on. I disconnected the battery & Ohm check verified a short between my emergency flasher switch pink wire, and the black wire to the rear light harness. This coincidentally shorts power through the headlight switch to the front marker lights, causing the 2 park, 4 side marker, and 4 tail lights to blink. Thanks to all who advise me on this one 
|
|
|
Re: Year One Dash Harness Wired Incorrectly...
[Re: limelight440]
#424141
07/30/09 06:58 PM
07/30/09 06:58 PM
|
Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
|
I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
|
Symptom: Emergency flasher flashes side markers also. With running or headlights on, side markers stay lit (do not blink) even with emergency flashers on. Thanks to all who advise me on this one
Mike, On one of my projects, 70 Charger Daytona, I used the dash harness, 440/6 engine harness, rear body harness, lights forward harness, plus some other intermediate harnesses, that Year One offered, they're actually M&H harnesses, for the steering column, I used a NOS replacement, basically all the wiring was replaced, the only Item I had to "rewire" was the NOS Chrysler steering harness, it had a few issuses regarding correct wire placement, according to a factory service manual,.....everything pretty much "fell into place", regarding connections, and function, I had no issuses before, during, or after the car fired for the first time(5 years ago)........so I just went to the garage to see if my car dose the same as you say in your quote above,
with the car not running, lights off, just the front directionals, hood turn signal lights (optional) and rear taillights flash properly, if I leave the door open, the dome light and console light "pulse", not quite "flash",.....this is just a result of the system drawing power from units using power,
Now if I put the running lights on, more draw, the side markers "pulse" with the flashers,.....and if I turn the lights on, more drain the side markers appear to flash (heavy draw)
when I start the car, running, the sidemarkers don't flash or pulse in intentsity, with all the lights on, and flashers going,.....with flashers off, all lights are steady in brightness
I'm a little confused at the "short" you say you have,........what is the "electrical gremlin" your chasing?,......have you talked to Tom at M&H?, don't bother with YO,....have you called M&H
Mike
|
|
|
Re: Year One Dash Harness Wired Incorrectly...
[Re: DAYCLONA]
#424142
07/30/09 07:25 PM
07/30/09 07:25 PM
|
Joined: Jul 2006
Posts: 139
MA
limelight440
OP
member
|
OP
member
Joined: Jul 2006
Posts: 139
MA
|
Quote:
with the car not running, lights off, just the front directionals, hood turn signal lights (optional) and rear taillights flash properly, if I leave the door open, the dome light and console light "pulse", not quite "flash",.....this is just a result of the system drawing power from units using power,
Mike
If I perform this light test as you did, my side markers flash also. (directionals operate normally)
I understand the pulsing you speak of.
It seems my emergency flasher output "PINK wire"
sends power to left & right directionals correctly,
but also sends power into the running light circuit (short) black wire to rear light harness.
I have not contacted M&H as I wanted to do a quick
sanity check first.
Last edited by limelight440; 07/30/09 07:29 PM.
|
|
|
Re: Year One Dash Harness Wired Incorrectly...
[Re: RodStRace]
#424144
07/30/09 07:41 PM
07/30/09 07:41 PM
|
Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
|
I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
|
Quote:
There have been 2 posts in the past two months about the harnesses not being wired right.
In your case, I'd also look at the other half of the equation, the grounds. Bad grounds can cause all sorts of funky stuff to happen, especially lights. 
John
IIRC the 2 post were about color codeing being incorrect for 71 B body wipers harness, and E body wiper harness........I'll agreee, lack of good grounding causes all sorts of gremlins with any electrical system in the car!
Mike
|
|
|
Re: Year One Dash Harness Wired Incorrectly...
[Re: limelight440]
#424149
07/30/09 08:15 PM
07/30/09 08:15 PM
|
Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
|
I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
|
Quote:
Sorry, 70 roadrunner, rallye dash
Have not attemted to "cut or inspect" into the dash harness to look for the "problem"
Wire diagram is my comparison
Mike, did you rebuild/replace the steering column harness, TS/4 way cam/unit?,.....and if so what did you use?
Mike
|
|
|
Re: Year One Dash Harness Wired Incorrectly...
[Re: 1_WILD_RT]
#424150
07/30/09 08:19 PM
07/30/09 08:19 PM
|
Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
|
I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
|
Quote:
Seems like what your describing points to the T/S switch... Or Grounds... When you ohm the harness pink 2 black connection did you remove the tail light bulbs & try again? if theres a bad ground power will back feed, but even if the ground is good when you ohm the harness your have a connection between circuts due to the bulbs..
Randy, that's interesting  .....possibility of a "shorted" bulb, feeding back into the system??????,......plausiable?,....bulbs can "short", and still work, leaving you with pulling your hair out chasing your tail?
Mike
|
|
|
Re: Year One Dash Harness Wired Incorrectly...
[Re: chargermop]
#424153
07/31/09 05:37 PM
07/31/09 05:37 PM
|
Joined: Jul 2006
Posts: 139
MA
limelight440
OP
member
|
OP
member
Joined: Jul 2006
Posts: 139
MA
|
SOLUTION: The circuits were crossed, but not in the dash harness where I thought....  tail light sockets The connections in the tail light sockets were so loose that they must have been touching each other. The plastic block that holds the tail light & running light wires seperate has wide slots cut into it from 1 side rather than just countersunk holes for the mushroom connectors to sit in. I think this allowed too much play in the wires, and since the last 1/4" inch is bare metal some crossing was going on. I wrapped the crimped part of the wires right up to the mushroom and no more shorting. All in all, i'm glad the new harnesses are wired correctly but 
|
|
|
|
|
