74 SB Turn Signals

[tommyleea]

In previous thread I had the spade connector issue. I did get that fixed, thanks for that. Now, I had the left tail light assembly removed for some fender maintenance. With the left tail light assembly back in place, I have a new issue. The emergency flashers work fine, parking and tail lights work. But, my turn signals don't work. The dash indicator lights up, but doesn't flash, and none of the turn signal bulbs come on. Before I dig too deep, is there something in the left tail light assembly that would cause this issue? All worked fine prior to the reinstall. Thanks..Tommy

[ashman40]

A problem with the left taillight housing could affect the front/rear left turn signals but should not affect the right side. They are separate.

Try this test... remove the turn indicator lamp from the speedometer. Retest your turn signals and the E-Flashers. Do they all work as expected?

Before you reinstall your turn indicator lamp, check that the bottom most terminal of the speedometer, which is a shared connection for all three indicator lamps, runs to the fuse box. It may run to the fuel gauge before going to the fuse box. This confirms the bottom most terminal is a shared 12v+ power source coming from the fuse box. If this shared connection wire runs to a ground, it is miswired.

Reinstall the turn indicator lamp into the speedometer and retest. When you turn the key to ON/RUN before starting the engine the OIL and GEN lamps should turn ON confirming the shared 12v+ power source is powering these two bulbs.
If the problem returns after reconnecting the turn indicator lamp in the speedometer it indicates you have the indicator lamp wired incorrectly... or you are running a flasher relay that is not compatible with the VW turn signals.
VW compatible flasher relay will always have terminals: 31, 49(+) and 49a. Any other terminal numbers and you are running the wrong flasher relay. Will it work? Maybe, maybe not. Generic flasher relays often don't work properly in a VW. Your FLAPS should have an EP-35 flasher relay which is compatible with VW wiring.
_________________
AshMan40
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'67 Beetle #1 {project car that never made it to the road }
'75 Beetle 1200LS (RHD Japan model) {junked due to frame rot}
'67 Beetle #2 {2019 project car - Wish me luck!}

[tommyleea]

[ashman40]

Could you have miswired the taillight assembly? Here is a pic from Speedy Jim's site showing the harness wire colors and the light assembly wire colors. You can check that these have not changed at the junction in the engine compartment hidden behind the tar paper.

_________________
AshMan40
---------------------------
'67 Beetle #1 {project car that never made it to the road }
'75 Beetle 1200LS (RHD Japan model) {junked due to frame rot}
'67 Beetle #2 {2019 project car - Wish me luck!}

[tommyleea]

[tommyleea]

Worked on the VW today. Since I had the fuse box down, I started with the fuses and the relay. Fuse power was all good. Fuse 8 had power with key off, and fuse 12 with key on. Removed turn signal relay, and jumped 49+ and 49a. No change. Checked power at 49+ with key on, and no battery power. Checked the ground circuit, and it checked good. Took a break. Came back, and checked for power again at 49+, and I had battery power! Jumped 40+ and 49a, and when I checked my lights all four corners were on? Fiddled around a little more, and then realized that my emergency hazard switch was on. I must have bumped it, or just forgot it was on. So, now I have power to 49+ when the emergency flasher switch is on. I turn the hazard switch off, and recheck 49+, and I have power! I reinstalled the flasher, turned the key on, turned the signals on, and everything is working. Thanks for all the inputs, and if you need the powerball numbers let me know....

[ashman40]

Sounds like the internal contacts in the E-Flasher switch are not making full contact. Working the switch ON/OFF can get them working again.
_________________
AshMan40
---------------------------
'67 Beetle #1 {project car that never made it to the road }
'75 Beetle 1200LS (RHD Japan model) {junked due to frame rot}
'67 Beetle #2 {2019 project car - Wish me luck!}

[tommyleea]