69 B body parking light/ fender mounted turnsignal question

[0DegreeEngineer]

I have a 69 gtx and the issue I am having is that my front parking lights do not operate. I have also replaced the housings with remanufactured ones and same issue no parking lights, I was also told the fender mounted turn signals should be on when the parking lights are on is this true? All the turn signals work and both the tailights and single license plate light come on in the rear when the light switch is in the "park" position, I have also attempted to place a ground wire directly from the battery to the parking brake housing with no change their either, any suggestions would be greatly appreciated.

 

[pnora]

Did you test for 12 volts at the front parking light socket? As far as I know the fender turn signal only operates when the turn signal is used. Not at all on park.

 

[440 PHIXX]

The fender mounted turn signal indicators only light with column mounted switch and the flasher switch. Up until 1968 the front parking lights only lit in the park position of the headlight switch. That was changed in 1969 and they stayed lit with the headlights. Check voltage at the switch.

 

[pnora]

The fender mounted turn signal indicators only light with column mounted switch and the flasher switch. Up until 1968 the front parking lights only lit in the park position of the headlight switch. That was changed in 1969 and they stayed lit with the headlights. Check voltage at the switch.

Front feeds to terminal U on the bulkhead. Its a black with a yellow tracer that he has to verify 12 volts at the socket.

 

[threewood]

The ground for the front park light sockets is the housing. The sockets are crimped to the housing, housing is screwed to bumper = grounded.

I don't know the quality of repop housings, but I would first check to see that the socket is grounded. Run a wire from socket metal direct to ground. I've seen old housings with rust under the socket crimp not make ground.

 

[Nacho-RT74]

The switch is good as the rear work. Same circuit with a big splice. Front feeds to terminal U on the bulkhead. Its a black with a yellow tracer that he has to verify 12 volts at the socket.

actually is not totally correct per at least what diagram shows. On 68/70 switches the rear and front parking lights are separated circuits coming out from the switch. The only diff which made to work together on 69/70 is a splice or jumper wire between rear and front circuits made on 69/70 harnesses to keep fronts on with headlights on being sourced from rear circuit output with headlights on, diff from 68 where like on earliers, the fronts turns off without this link made on harness.

now, the weird thing here is if he is not getting power on any lights switch position?, so as you mention, the circuit running throught the bulkhead should be checked.

 

[Nacho-RT74]

Now wondering… if he is checking the parking lights with Headlights on and not in parking position?… if he gets front parking lights in parking position… did his car get a 68 underdash harness?

about top fender lights. They are just for blinking indicators, either turnings or hazzards. However, a bad grounding on front parking lights could make to dim fender top lights with parkings on.

 

[Black_Sheep]

If the front turn signals function correctly it’s probably safe to assume that the grounding is good. I would start by unplugging the 2 pin connectors at the lights and checking for voltage at the female side of the plug on the forward lighting harness. If no power is present, check for voltage at the bulkhead terminal U. If no voltage is present you have a wiring or switch issue under the dash.

 

[pnora]

I edited my post 4. The wire off the switch feeds the front park lights and it goes from the switch to bulkhead terminal U.

 

[Nacho-RT74]

Interesting! Diagrams posted at MyMopar for Dodges shows a small jumper wire between rear and front parking light circuits at switch/plug!

(hence why I don’t trust completelly on those diagrams LOL)

 

[0DegreeEngineer]

Sorry I haven't gotten back to this, I have found when I replaced the housings with repop assemblies that they are functioning the same way no park lights in park or headlights on, but when I put power to terminal u at bulk head with fused power probe I get feed back and dim running lights engine side harness was replaced in 2018? With year one replacement, as nacho stated earlier are the parking lights only on in park with a 1968 harness but in 1969 there is a jumper and the headlight switches are the same or are there one year only switches? Reason I ask I was cleaning the shop and came across a box of dash components with three headlight switches all 3 test out as below.

B1 to H (1.3-6ohm) when switch set to headlight

B1 to H (OL) when in park or off

B2 to P (6.8-153ohm) when in park

B2 to P (OL) When in off and Headlight

B2 to R (1.2-2.5ohm) in Headlight and park

B2 to R (OL) in off

Are these switches technically functioning as designed (less resistance numbers)

?

 

[Nacho-RT74]

Recently we have been talking about this.

68-70 switches are the same ( of course, 70 without the vacuum switch if Charger switch)


What factory did to keep on front parking lights on still with headlights on for 69/70 is just change the source to front parking lights to the rear source, splicing the front wires into the rear source at headlights plug… althought some MyMopar diagrams shows a jumper wire between both.

In any case, getting a jumper wire somewhere between rear and front circuits OR splicing the front circuit into the rear source circuit at switch, will work the same to keep on the front parkings still with headlights on from 69 and on

About the letter labels on switch

B1 comes from the main splice into the Batt/charging network and is destined just to feed headlights
B2 comes from fusebox and is destined to feed parkings and dimmer wheel
H is the headlights output
P are front parking lights
R are rear parking lights (and side markers when equipped ). I guess also used to source the dimmer wheel input on divorced dimmer systems.

So… testing for continuity…
-B1 and H are just linked at the full ON position (headlights)
-B2 and P are linked just at the first position and cut with Headlights on
-B2 and R are linked on both positions

So on your test, that’s pretty much correct

 

[0DegreeEngineer]

Recently we have been talking about this.

68-70 switches are the same ( of course, 70 without the vacuum switch if Charger switch)


What factory did to keep on front parking lights on still with headlights on for 69/70 is just change the source to front parking lights to the rear source, splicing the front wires into the rear source at headlights plug… althought some MyMopar diagrams shows a jumper wire between both.

In any case, getting a jumper wire somewhere between rear and front circuits OR splicing the front circuit into the rear source circuit at switch, will work the same to keep on the front parkings still with headlights on from 69 and on

About the letter labels on switch

B1 comes from the main splice into the Batt/charging network and is destined just to feed headlights
B2 comes from fusebox and is destined to feed parkings and dimmer wheel
H is the headlights output
P are front parking lights
R are rear parking lights (and side markers when equipped ). I guess also used to source the dimmer wheel input on divorced dimmer systems.

So… testing for continuity…
-B1 and H are just linked at the full ON position (headlights)
-B2 and P are linked just at the first position and cut with Headlights on
-B2 and R are linked on both positions

So on your test, that’s pretty much correct

Great! Thank you, I will have to check out the wiring under the dash when I pull the car out, I appreciate you clearing this up for me, attempted to search but did not find the info I needed.