2001 360 Spider - Signal/Horn Issues

Tricky one. Possibly separate issues.

Horn: By "one beep at startup", do you mean when you push the horn button or is your immobiliser is triggering the horn?

Depending on the market, both the immobiliser and the horn button activate the horn using the horn fuse and horn relay in the frunk (left hand side). The immobiliser and horn button provide an earth for the relay coil (power comes from the fuse for the horns and the relay solenoid). Maybe a weak relay? I don't think it's an earth (ground) issue as the left and right horns use different earths.

Image Unavailable, Please Login
Try swapping relays 30 and 31 to see if it makes a difference.

If only the horn button activates the horn on your car, then you would have to look at intermittent clock springs and things like that.

Part 2 following...

 

Hazard & Turn:

I can't see anything other than your Hazard/Turn Module internals being faulty (especially if you've checked fuse 9 in the frunk). The immobiliser bypasses the module and turns on the lights directly. Fuse 9 is the only power source for the module.

When you turn on your hazards using the console switch, do you get the hazard symbol on your dash?

Image Unavailable, Please Login

The indicator stalk gets power from a fuse behind the RH seat, but this fuse wouldn't cause the hazards not to work.

The soldering on the circuit board is know to fail in these modules. If you lift the cover, of the module, you will see something like this:

Image Unavailable, Please Login
Look for fine cracks in the soldering point marked "30". If no cracks visible, resolder anyway. This solder blob should have continuity to pin 30 of the module (check with an ohmmeter), but the connection may be intermittent, so it's best to resolder anyway.

 

Here's a full pinout for the module

Image Unavailable, Please Login

 

If you didn't know, the Hazard/Turn Module is under the dash on the passenger side

Image Unavailable, Please Login

 

Thanks. I wasn't sure if the Hazard Switch actually illuminated that symbol anyway, even though the instrument panel is connected to the switch.

Any luck with the relay?

I have wiring diagrams if you need them.

 

The horn fuse is in the frunk. See the blue rectangle in my first image.

 

Try wiggling the hazard/turn module. Sometimes this works (temporarily).

i.e. turn on your hazards and wiggle the module. If it works, it's usually a sign of bad solder joints within the module.

Usually the module has a very tight fit in its socket. Pulling the module out and putting it back it puts a lot of strain on the connections.

 

You should just be able to reach under the dash from the footwell.

 

Seen in this photo (in the corner)

 

Fuse 9 is the only fuse which would affect both hazard and turn. If there was only a turn issue, I would look behind the right hand seat for this blue fuse

Image Unavailable, Please Login
Your fuse numbering may vary (depending on the year of the car), but it will be in the top left hand corner of that particular fuse/relay block (in the same position).

 

Note that there would be lots of other things broken if the 43 fuse was blown. e.g. clock, wing mirrors, possibly the radio, etc...

 

If you do pull the case off the module, perhaps you could take a photo of the circuit board. I don't have a shot of the later circuit boards, but the soldering connections near the pins should be similar if not the same.

To remove the case, you may need two small flat bladed screwdrivers to prise the case past the clips. The plastic case is rather soft, so be gentle not to mark the case.

 

Where did you get that particular number? I think that's only for the Ferrari 550, 456 and 575.

The USA 360 relay part number is 213326. It's nil stock at most places. That's why we fix them.


Image Unavailable, Please Login

Another possible board issue could be the soldering for pin 31. That's the earth.



You don't have an over the counter electronics repair store or computer repair store near you? They might be able to do it on the spot if it's only two soldering joints. Depending on the store, they might even do it for free for a small tip. Just show them the picture above.

You may find a second hand unit, but then you end up with the same problem.

 

Ah.. I see now that it is written on the relay. Weird. Maybe the 550 and 360 relays are interchangeable.

Having said that, they are probably also hard to find. Ricambi America also shows that as nil stock.