360 Help! Turn Signals/Hazards Not Working!

Hi, Ian, welcome to the forum. There are a few fuses associated with the Hazard/Turn system. Is your clock also not working? If not, try fuse 43 behind the right hand seat. Fuse numbers vary, so make sure that the fuse is for the "clock, radio, wing mirrors, light switches". It's a blue, 15amp fuse.

The other fuse associated with Hazard/Turn is fuse 9 in the frunk. That fuse also powers the frunk light.

Image Unavailable, Please Login

It's labelled something strange like "Luggage Compartment Light/Emergency"

If the ignition was off at the time, then most likely it will be this fuse. It's permanently live.

Hope this helps. Let us know how you go.
Cheers
Ian.

 

I would check to make sure that you are getting power to the bulb socket.

 

If you are getting power with the flasher activated then it is a bulb or socket issue. Sometimes even new bulbs are defective. Always start with the simple first. Usually a rapid flasher noise indicates a bulb is out.

 

Here's the wiring for the LH rear tail light. The LH turn signal wires are blue/black ("LN")


Image Unavailable, Please Login

For reference, if the wire colours are not visible, Ferrari draw their plugs as viewed from the wire side (not the contact side), so you'll have to flip the plugs (mentally) to figure out which pins/sockets the wires correspond to when doing wiring checks.

Make sure you have a good earth ("34L")

Does the light work when you turn the immobiliser on/off?

(EDIT: The diagram may show a Euro car. I'm not sure how different Canadian cars are)

 

Ugh.... This is getting complicated. I wonder if you damaged something other than the fuse. Something to consider... I have changed a Hazard/Flasher Module with a new one and the new one was worse than the old one! If you are now getting a problem with the right hand side, I would certainly consider this. Also, make sure your car's battery still has plenty of juice left in it.

Interesting. The wiring which comes from the Immobiliser ECU and goes to the tail light is spliced into the wire coming from the Hazard/Turn Module ("relay"). This is splice "S79D". So the problem seems to be a wiring issue between the relay to this splice. Unfortunately, Ferrari don't show the location of splices in their wiring diagrams. Anyway, I would do a continuity check of the wiring between the relay and a specific plug at the rear of the cabin (or the tail light) to confirm this. Unfortunately, the wiring is quite complex. I'll include a diagram which includes all the wiring from the flasher unit to the rear of the cabin, including the immobiliser.

https://www.dropbox.com/t/WdDBpEHlf9T44dcx

The "relay" is shown in green in the middle of the wiring diagram. Follow the blue/black (code "LN") wire (on pin 6 of the relay) down the diagram to splice "S71C" to plug 10D/23D. The immobiliser/turn splice ("S79D") will be between plug 10D/23D and plug 11H/23H.

Plug 11H/23H is shown below:

Image Unavailable, Please Login

This diagram will help you identify pin 6 on the relay (if you can't see the wire colours)

Image Unavailable, Please Login

As you can see from the big wiring diagram, the LH output from the relay goes to the Hazard button on the centre console, the instrument panel and both front and rear LH indicator lights. (EDIT: When you activate your Hazard Switch on the centre console, does the switch itself flash?)

Let me know if this is getting to complicated for you

 

Do you mean the left front turn bulb or the turn indicator on the dash flashing quickly? Is the dash indicator working for left turns?

Image Unavailable, Please Login

 

I made them myself. I just put the jigsaw puzzle in the WSM together.

Working with what you've told me, I see a problem between splice S71C and splice S79D. Unfortunately, the splices shown in the WSM may be one splice with lots of wires coming out into/out of it, or there could be multiple splices represented diagrammatically by a single splice.

All you can really do is find connector 10D/23D and carry out wiring checks between the relay and the corresponding side of the connector. If that checks out ok, then there is a problem somewhere in the console tunnel or behind the driver's seat. This is where it gets more complicated. You'll have to find connector 10D/23D. It looks like it's under the console forward of the gear lever/selector.

Image Unavailable, Please Login

Then carry out a resistance check between the relay (pin 6) and plug 10D (pin 9)

Image Unavailable, Please Login
If ok, then you'll have to carry out a resistance check between plug 23D (pin 9) and plug 11H (pin 12) behind the driver's seat (see post #9). Maybe you'll get lucky and find a dirty or slightly bent pin on connector 10D/23D

Note that the flasher unit is "hyperflashing" because it's not reading the resistance of the taillight bulb (because of an open circuit or high resistance).

Have you had any recent work done in the console area? I can't say I've come across such a specific problem like this before.

 

Something else to consider. Sometimes splices are not wires connected in the middle of a wiring harness, but are actually two wires going into one pin on a connector.

Image Unavailable, Please Login
Check for two wires on connector 11H pin 12.

 

Excellent. As I said earlier, the symptoms were very specific, so I was almost sure that the problem was in that area. I wonder what caused the problem.

By the way, did you point them in right direction or did they work it out themselves? It would have been difficult to diagnose the problem with only the standard WSM wiring diagrams.

Thanks for the photos and feedback on 11H pin 12. I guess the splice is hidden in the harness somewhere.

Cheers.

 

Never having worked on the 360, I find these type of photos very helpful, if not fascinating.

Image Unavailable, Please Login

I didn't realise that plug 10H/22H (above 11H/23H) was blue and that the plugs were neatly mounted to the bulkhead. I'll add this detail to my wiring diagrams.

I see you have a gated car as there is a jumper wire between the immobiliser and the starter relay on gated cars. On F1 cars, this plug goes to the F1 ECU. I also see you have a battery charger pigtail behind the driver's seat.