No brake lights or turn signals **FIXED**
#1283418
08/11/12 12:49 PM
08/11/12 12:49 PM
|
Joined: Jan 2011
Posts: 61 Minnesota
Mad Accountant
OP
member
|
OP
member
Joined: Jan 2011
Posts: 61
Minnesota
|
I took the instrument cluster out of my 69 Dart, repaired some broken pins and reinstalled. Now I have no brake lights or turn signals in the rear, and no running/turn signal lights in the front at all . The emergency flashers work in the back only, and I have tail lights with the headlights on. Fuses and bulbs are all good, I haven't tried replacing the turn signal flasher yet.
When I repaired the broken pins, I added one on the left side board that I thought was missing, it was the one on the far left of the left board as you are looking at it from the guage side; so the outside pin of the group of 3.
Before I spend 2 weeks chasing down grounds and other wiring issues and finally resorting to a hammer, has anyone ever seen this and know where I should look first?
Last edited by Mad Accountant; 08/16/12 10:11 PM.
|
|
|
Re: No brake lights or turn signals
[Re: RodStRace]
#1283426
08/11/12 04:21 PM
08/11/12 04:21 PM
|
Joined: Jan 2004
Posts: 27,347 Today? Who Knows?
1_WILD_RT
Management Trainee
|
Management Trainee
Joined: Jan 2004
Posts: 27,347
Today? Who Knows?
|
Easy way to test is just plug in the new switch... No need to tear apart the column just to test...
"The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."
|
|
|
Re: No brake lights or turn signals
[Re: Mad Accountant]
#1283429
08/15/12 04:09 PM
08/15/12 04:09 PM
|
Joined: Sep 2003
Posts: 1,168 Vancouver, WA
MoparMarq
super stock
|
super stock
Joined: Sep 2003
Posts: 1,168
Vancouver, WA
|
No real test for the switch per se, but put 12V jumper on the brown colored terminal in the dash harness for the turn signal switch to see if rear right brake/turn signal bulb illuminates. If so, that part of wiring is good. Ditto for dark green terminal to check left rear. If both check good, which they probably will, problem is in turn signal switch. Tan is for right front. Light green is for left front. Colors are off '72 FSM A-, B-, and E-bodies. MAY be different for '69, but I doubt it. Check this for sure - wiring diagrams there. http://www.mymopar.com/index.php?pid=27A further check is if when the brake pedal is pushed, the white terminal in the dash harness should get 12V.
|
|
|
Re: No brake lights or turn signals
[Re: MoparMarq]
#1283430
08/15/12 11:34 PM
08/15/12 11:34 PM
|
Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
|
seperate the TS harness & see if there's continuity between the white wire (in from the stoplight switch) and the 2 "out" wires for the left and right rear brake lights (as said mymopar will have the colors) with the stalk in neutral because when you step on the brake with the TS not operating (neutral) both brakes light up normally. Then raise the stalk up (right hand turn) & see where continuity shifts to as it interrupts the RH side & feeds the right side to the flasher then back to the harness & out to the right brake then do the same on the left (stalk down). I dont have an answer for where the continuity should shift to but somebody does or with enough time at mymopar & checking continuities with your VOM you'll be able to tell if the TS switch is good or bad without buying another one first
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: No brake lights or turn signals
[Re: Mad Accountant]
#1283431
08/16/12 02:54 AM
08/16/12 02:54 AM
|
Joined: Jan 2005
Posts: 3,699 Newport, Mi
Evil Spirit
master
|
master
Joined: Jan 2005
Posts: 3,699
Newport, Mi
|
People are forgetting there are 2 power supplies to the TS switch - key on through flasher for turn signals (red) and brake light power feed from brake light switch (white). With TS centered, you should have cont between white (input) and dk grn (LR) and brn (RR)(brake lts). R turn w/brake - cont between white and dk grn (LR)(brake), cont between red and brn (RR) + tan (RF)(R turn). L turn w/brake - cont between white and brn(RR)(brake), and cont between red and dk grn (LR) + lt grn LF)(L turn). Orange is dash lights; black/tr is horn feed. Hope this helps
Free advice and worth every penny... Factory trained Slinky rewinder.........
|
|
|
Re: No brake lights or turn signals
[Re: RapidRobert]
#1283433
08/16/12 11:29 AM
08/16/12 11:29 AM
|
Joined: Jan 2005
Posts: 3,699 Newport, Mi
Evil Spirit
master
|
master
Joined: Jan 2005
Posts: 3,699
Newport, Mi
|
The 2 seperate power feeds explain why the brake lights work all the time and the turn signals are key on only. Then if the hazzard flashers are in the TS switch or on column (later years) there is another power feed for that. Can get pretty busy Take apart a broken TS switch sometime and you'll see all the contacts that make/break as you move the handle.
Free advice and worth every penny... Factory trained Slinky rewinder.........
|
|
|
Re: No brake lights or turn signals
[Re: Evil Spirit]
#1283434
08/16/12 10:10 PM
08/16/12 10:10 PM
|
Joined: Jan 2011
Posts: 61 Minnesota
Mad Accountant
OP
member
|
OP
member
Joined: Jan 2011
Posts: 61
Minnesota
|
Evil, your testing procedure was awesome. While it showed that the switch was fine, it also proved once again that I'm a moron. The test for power on the white wire with the brake pedal depressed showed all was well; when I rechecked the bulbs sure enough one filament was gone in each. One filament and the posts were gone; they both looked like one filament bulbs. New bulbs and I've got brake lights. The test for power to the red wire showed it was dead, new signal flasher and now I've got turn signals. As usual, it was the easiest fix, but I overthought the problem. Thanks to all for your help.
|
|
|
|
|