Hazard lights work, but turn signal lights don't.. Any ideas?

[Tomzern]

Hi!

I have solved all the electrical issues on my Z now, except one. I can't get the turn signal lights to work.

When I turn on the hazard switch, all the lights flash as they should, included the indicators in the tachometer. When I turn on the driving light switch, the turn signal indicators come on and is lit constantly. If I then try the turn signal switch, the indicator for the side I switch it in turns off, but still no flash...

If I disconnect the front turn signal lights, the dash indicators turns off, but I still don't get any flash in either direction. Only hazard flash works.

What can cause this problem?

Sorry if this was badly explained. I am norwegian, so my english is not top notch but I hope you understand

Kind regards,

Tomzern

[siteunseen]

Are the driving lights wired on the turn signals power or fuse. Could you disconnect the driving light power and see if you get your turn signals back? Just guessing.

[SteveJ]

One issue that I believe is happening is that you have an 1156 bulb where you need an 1157 bulb. That is why everything lights up when the parking lights are on.

As you may notice the 1156 has one contact at the bottom, whereas the 1157 has two.

Did your side markers light up with the hazard switch? That would be another indicator of the wrong type light bulb in a socket.

Another issue you may have is a problem with your hazard switch. The circuits for the turn signals and your brakes go through the hazard switch. When the hazard switch is on, the circuits for the brake lights and turn signals are interrupted. When the hazard switch is off, the circuits are supposed to be restored. However in an older switch, the contacts may be too dirty or may have moved slightly.

Here are a couple of references on the subject:

Early Hazard Switch | Fiddling With Z Cars

Hazard Switch ? Brake Light ? Turn Signal Circuit Analysis | Fiddling With Z Cars

I suggest you remove your hazard switch and make sure there is continuity between the two green wires (with no stripe). If not, there is your issue.

[Tomzern]

Thank you guys!

I was there today, and started with checking the hazard switch as you said SteveJ. I had no continuity between those two green wires, so I opened it, sanded and cleaned the contact points and put it back together again. Now the switch was working, but I still could not get any turn signals.

I then took a closer look at the wiring diagram in the second link you gave me, and noticed that there were two flasher units. I had only connected the one for the hazard lights, and didn't think that there was supposed to be another one. I found the second flasher unit in the pile of stuff I have for the car, connected it and it works like a charm now!

Thanks again, especially to you SteveJ for giving me a thorough explanation with links I love this forum!

Kind regards,

Tomzern

[SteveJ]

I'm glad you found the links useful. Phil, aka Blue, inspired me with all of the tech tips he created on his club's website.