Turn signals not working.

I'd bet the problem is in the center console wiring. I was working on some stuff this summer and realized that when I went for a drive with the center console hazard flasher button unplugged the turn signals don't work. So apperently everything goes through there.

EDIT: this was on my 348, I realize now you're talking 355 right? Probably similar though.

 

Thanks Brian, that is the type of handy information to know that makes this site so helpful for us diy guys. ( Turn signals dead ? Check hazard warning button wiring on console ) JGW

 

The hazard circuit on a 348 is different in some respects. Looking at the wiring diagrams, it seems odd that a disconnected hazard switch would cause problems on the F355.

Brian, do your turn indicators work when you use the hazard switch? Also, with your sidelights on, do you get the hazard switch logo to illuminate? At least you know the plug on the hazard switch is connected if the logo illuminates (without pulling the console to pieces).

Just one, Brian? With ignition off, you should get power from the battery on one of the pins. With ignition on, you should get power from the stalk when you select left/right turn (on other pins).

Does your turn relay socket (physically) look like the one in my diagram (see lower left corner). It's a 1994 Euro F355 diagram with the flasher relay pins renumbered to match my '98 Spider. Yours may be different.

http://www.iinet.net.au/[email protected]/FerrariF355Spider/FerrariF3551994LightingDiagram.gif

 

Of course, that is no guarantee that the right wiring harness has been fitted to the right switch I had a problem where the fog light switch would activate the door locks (plugs were reversed).

 

The reverse lights and turn signals use the same fuse. Do the reverse lights work? Is the fuse blown? The reverse light switch is in the center console so maybe some wiring issue there is causing problems.

 

For some systems, yes, but with fewer "hand-written" notes. Also, my car is a 5.2 model, so I didn't reproduce the early series engine management diagrams. Also, the diagrams are based on the Euro models, there will be variations (e.g. the Euro model has single turn repeater lamps on the side of the cars).

Figuring out the wiring for the centre console switches is quite a challenge. It's spread out over numerous (complete) diagrams.

Here's one for door locks, fuel filler flap, mirror heating and position control, interior light, cigarette lighter, speakers, etc..

http://www.iinet.net.au/[email protected]/FerrariF355Spider/Fig9_Mirrors_Doorlocks.GIF

Note that not all wires are coloured (e.g. It's difficult to show white and yellow on a white background). You will have to use the colour code charts I've added.

As previously mentioned, these diagrams are best viewed on iPads, etc, which allow easier magnification, scrolling, etc. I don't think these diagrams will print well. Where the wiring is hard to follow (lots of parallel wires), for easier fault diagnosis, I usually duplicate the diagrams on my PC and resort to a program like Windows Paint to draw thicker lines.

Cheers,
Ian.

 

One of the LEDs may be blown? Also, the hazard switch should blink when the hazards are in use. A second LED (or bulb) is used for this function.