Johnnyreb17
New member
both headlights stop working on my 2012 Fiat 500
General headlights not working on my 2012 Fiat 500
- Thread starter Johnnyreb17
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General headlights not working on my 2012 Fiat 500
The American cars are different to over here, however, are you talking about the ones above the bumper ? If both are off I'd look at the relay, as over here there's separate fuses for left and right do all the other light work correctly? The ones in the bumper?
Johnnyreb17
New member
Yes the lights ab p ve the bumper, I already replace the headlight relay in the fuse box under the hood
Do you get the light ico on the dash when you turn the lights on?
Johnnyreb17
New member
No sir
Do the "side" and tail lights work ? Here when the engine is running turning on the side and tail also turn on the dip headlights.
Stupid question you've checked both bulbs are working?
Stupid question you've checked both bulbs are working?
Johnnyreb17
New member
Yes all of the other lights work, haven't had a chance to check headlights its dark when I get home from work, but I will check them first thing in the morning, ( Saturday)
Derbyfella
Established member
have you tested the relay is still working at that the bulbs arent blown?
Johnnyreb17
New member
Yes all of the other lights work, haven't had a chance
Johnnyreb17
New member
Yes I replaced the relay under the hood
So, it's going to take some more in depth investigation.
With a helper turn on ignition but don't start, with a finger on the relay have someone turn on the lights, can you feel it click?
If it does click, remove it and check for a supply feed( power to lights, not feed to relay switching)
Use a meter, every thing off to check the continuity between the relay output and the headlight live(bulb)
If the relay doesn't click, and is known to be good, check for a switching signal feed, also check the earth for the relay.
If there's no signal then check the wiring back to the body computer?
With a helper turn on ignition but don't start, with a finger on the relay have someone turn on the lights, can you feel it click?
If it does click, remove it and check for a supply feed( power to lights, not feed to relay switching)
Use a meter, every thing off to check the continuity between the relay output and the headlight live(bulb)
If the relay doesn't click, and is known to be good, check for a switching signal feed, also check the earth for the relay.
If there's no signal then check the wiring back to the body computer?
Derbyfella
Established member
agree....back to basics too
why did you change the relay originally? did you test that it was faulty - the original one?
Could you explain what you have done already and why and outcomes of testing.
Johnnyreb17
New member
I changed the relay because someone mentioned that it could be the problem,didnt help. Dont have any meters to check anything and dont know how to use them anyway, will check the bulbs in the morning( Saturday)
Contact a auto electrician I'd say then, there's too many possibilities
Derbyfella
Established member
What controls/protects the wires that lead to the relay, a fuse? Which one? Have you checked thst fuse?
Johnnyreb17
New member
Where would that fuse be located? under the hood or inside the car
Fuse 12 and 13 in the passenger compartment (on European cars) but it would be unusual for both to go at once, one for each side
Johnnyreb17
New member
Johnnyreb17
New member
I will check the bulbs today and fuse 12 & 13, I was also told that there is a Body Control Module behind the fuse box and it has 2 small relays on that circut board and if they go bad your headlights will not work,but once it is replaced it has to be registered with the car again by a dealer
I'd start with the simple things. Bulbs of the same age may blow at (almost) the same time.
gr J
gr J
