Turn signel problem

[strictlypersonl]

Yes, it's an uninterrupted shot from 54 to the light. What bothers me most is the lack of a ground wire at 47. It's nearly impossible for me to forget that wire in the harness. That means that the harness may have been damaged between the box and the final installation.

[DanEC]

Bob - well this is just wierder and wierder.

I used my test light to get power from 27/54 and hooked a wire up directly to the light. The test light was flashing away up under the dash but nothing was happening with the turn signal. The back one is flashing. I did notice that the flasher, flashes a little slower when on the pass side than when on the operating driver side but when I put the test light on it and it is flashing, it speeds up to match the other side.

Next I switched bulbs from side to side - no change.

Then I unhooked the green wire and put my meter in the circuit to the light. I was getting 12 volts and it was fluctuating between 12.1 volts and 12 volts with the flasher. The filiment still not lighting.

Then I used my test light to get power from the yellow wire at 27/54 with the driver side flashers on. It flashed the same as the pass side.

Then I used my meter to check power on the pass green lead at the light with the turn signals off. I was getting a steady 12 volts.

Then I used my meter to check power on the driver side yellow lead at the light. I got 0 volts with the flashers off and 8 volts with the flashers on.

It seems like the green lead is getting backfed with power from someplace. Why the light filiment doesn't light up I can't understand. It seems it should be lit up all the time. Both filiments worked on the other side before I switched bulbs.

Maybe there are two problems - lack of continuity in the light and a short in the circuit??????

On the missing ground - it looks like the black ground wire is there but it runs uninterrupted from the headlight into the harness. It comes out of the lead from the headlight unit, runs exposed for about 3 inches and then goes into the wrapping for harness 51 that runs up around the radiator frame to the black wire at the 3 pigtails.

I could cut this wire and spice a leg down to the park light bezel if that would make any difference. Maybe the pass side light is getting backfed through the ground I ran to the driver side bezel.

I'm baffled - not having as much fun as assembling something.

Thanks

[DanEC]

Re: missing ground. There isn't any sign of damage - no cuts, splices, bare wires etc. Just insulated black wire running from headlamp to the wrapped harness. Only thing pecular is that it is short compared to the other two leads coming from the headlight.

[DanEC]

The mystery of the missing ground is resolved. I don't know how but the lug was shoved up inside the tubing from the headlight unit. When I was taking a picture it struck me that something was odd because the headlight unit was separate from the harness.

However, upon disconnecting the ground I installed and connecting the harness one, the problem with the flashers remained unchanged.

[DanEC]

Bob - any additional suggestions on what to check?

[DanEC]

I checked all the wires through the 54/27 connection but failed to register there are two green wires running through there. I had checked that on the wiring diagram but I think the only other green wire that was shown was supposed to have a black stripe. I ran a long piece of wire back from the turn signal and started running continuity checks at the plug and sure enough the green wire at the turn signal location on the plug was dead. So I started stabbing all the other wires in the plug and got one that gave me a buzzer - turned the plug around and this wire was solid green too. They were just switched. I hadn't noticed anything else not working - I guess I need to see where that other green wire goes to. But all is well.

Have a good weekend.