My 2003 300a has working bulbs in the back but the tail lights won't come on in any headlight switch position.
The brake lights work!
Aarrggh!
My 2003 300a has working bulbs in the back but the tail lights won't come on in any headlight switch position.
The brake lights work!
Aarrggh!
- SCT ala DR. Yippee!!
How about the marker lights on the front corners?
Thanks to Darrin @ BC Automotive:
$1800 and it was worse than when he started!
Brian (FordNut) FPG # 1458 of 7838
03 MM 300A (Lotsa mods, 130k mi) was 303rwhp/318rwtq N/A
then 476/410 D1SC ProCharged on stock block
then 660/555 D1SC PC on 5.3 wet sleeved Teksid alum big bore stroker
then 365/369 N/A on 5.3 wet sleeved Teksid alum big bore stroker
Now 751/617 3.4L Whipple on 5.3 Boss5.0 iron big bore stroker
03 MM 300B Silver (Mostly stock, originally wife's car, 370k mi) FPG # 7053 of 7838 or 49 of 417 SB
03 MM 300B Silver, Stock, wife's next one, 136k mi FPG # 7134 of 7838 or 89 of 417 SB
04 MM Silver, Stock, on standby 85k mi, FPG # 1212 of 3214 or 432 of 997 SB
01 F150 longbed
01 F150 shortbed
00 F150 4x4 stepside
01 F150 4x4 7700
68 Stang FB (70 351C 4V, 4 wheel discs, project car)
Mods listed here (some items not current): FordNut's Mods
I think the marker lights are out too. Don't care nearly as much about them though.
- SCT ala DR. Yippee!!
But it may be an important data point in diagnosing the problem. Sounds like it's not the rear wiring harness, maybe the fuse.
Thanks to Darrin @ BC Automotive:
$1800 and it was worse than when he started!
Brian (FordNut) FPG # 1458 of 7838
03 MM 300A (Lotsa mods, 130k mi) was 303rwhp/318rwtq N/A
then 476/410 D1SC ProCharged on stock block
then 660/555 D1SC PC on 5.3 wet sleeved Teksid alum big bore stroker
then 365/369 N/A on 5.3 wet sleeved Teksid alum big bore stroker
Now 751/617 3.4L Whipple on 5.3 Boss5.0 iron big bore stroker
03 MM 300B Silver (Mostly stock, originally wife's car, 370k mi) FPG # 7053 of 7838 or 49 of 417 SB
03 MM 300B Silver, Stock, wife's next one, 136k mi FPG # 7134 of 7838 or 89 of 417 SB
04 MM Silver, Stock, on standby 85k mi, FPG # 1212 of 3214 or 432 of 997 SB
01 F150 longbed
01 F150 shortbed
00 F150 4x4 stepside
01 F150 4x4 7700
68 Stang FB (70 351C 4V, 4 wheel discs, project car)
Mods listed here (some items not current): FordNut's Mods
2003 300B DBP
Build date: 6/19/03
Number 7,792 of 7,838 - 326 of 328
Proud member of the MM "BLUES" Bros.
Purchased: 11/10/05
Eaton swap by ImpalaSlayer 11-09-10
Semper et in Aeternum, Mercurius.
In Memory:
2004 DTR
Build Date 01/27/04
Purchased 04/04/04
Wrecked 10/19/05, R.I.P.
Yes, the marker lights in the corners are also not working.
My cowl is also gunked up with leaves. (I'm going to try to take off
the cowl and clean the wiper thing out when I get back from my roadtrip
MKE-Memphis-Baltimore-MKE (In Memphis now.)
Didn't need my a/c yet this year either until I got down to St Louis. Turned it on and nuttin! Just had the compressor replaced under extended warranty 14 months ago.)
- SCT ala DR. Yippee!!
I know you posted this a while ago but,I'm having similar problem,did you get it fixed???What was the problem...
I had the same problem and a friendly L/M mech told me to look under the dash---pull down on the shield over the LCM---there is a bright yellow wire going into the unit----I used needle nosed pliers and grabbed the yellow wire----and applied pressure toward the LCM as I wiggled it---I felt and heard a snap --8the lights have been good for about the last 5000 miles. Hope it works for you. Good luck. Maury
2003 MM 300B Black
Born 11/12/02 Adopted 3/29/03
"SHADOW"
Hood Ornament
on mine the wiring harness got pinched in between the body and the tail light causing a short to ground popping the fuse
waiting to be blown
You can run all your life but not go anywhere
positive manifold pressure leads to coitus
Thanks for the response.Is the yellow wire you're talking about look more like a hose???There is a yellow either very thick wire or a small hose over the LCM with black plastic ends on it.Is that what you're talking about???This is driving me nuts...All fuses checked out good...The car was not used in a few months,worked fine then.First time I use it,the tail lights and fog lights won't work...Thanks for any help...I took another look..The big yellow is a vacuum hose,so that's not it...Which yellow wire are you talking about???Is it one of the wires in a harness going to the LCM??
Last edited by bugsyc; 05-02-2013 at 06:00 AM.
It is a yellow wire going into the lcm from the wire bundle
2003 MM 300B Black
Born 11/12/02 Adopted 3/29/03
"SHADOW"
Hood Ornament
Thanks,I'll try it...
I'm having this same problem has anyone figured out what it is?
“When you can’t make them see the light, make them feel the heat.”
Ronald Regan
"The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."
Lt. Colonel Ralph Peters
“Be polite, be professional, but have a plan to kill everybody you meet.”
"I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
General James Mattis
In my case (same symptom, tail lamps out, but brake lights work), I found that this was caused by a loose connection at the uppermost wiring harness going into the back of the LCM.
I found that if I reached up under there and pressed in and/or up on the white colored wiring connector, I got my tail lamps (and front corner markers) back.
I still haven't found a permanent fix for this. Pushing on the harness, in my case, only keeps the lights working for about 24 hours at most, sometimes not even that long.
Yours truly,
Meteorite - Royal Oak, Michigan
2003 300A - Black VIN = xxxxxxxxxxx600051 *** Build Date = 3/13/2002
Best e.t. -- 12.31 @ 111.5 mph *** Now with: Trilogy #220, Alternative Auto Performance Tune + 4.10 Gears +SW headers + Metco control arms + Addco front and rear sta-bars + Dynotech Metal Matrix Driveshaft + Weldcraft widened wheels & MT drag radials.
2003 300B - Blue
And now ... 2003 Black (Trilogy #58)
1962 Mercury Meteor & 1963 Mercury Meteor
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