Hi there, guys! Could someone gimme some light about the fuse F31 that is always blowing every time I need to move my change any gear from the right side (5th or rear). I believe is something about the cigarette lighter wire, because it's fuse it was also blowed. Do you think it could be a shortcut in the centre console?
Technical Fuse F31 always blowing.
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Technical Fuse F31 always blowing.
Fuse F31 is for the reversing lights. Check for a short in the reversing lights circuit.
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Are you sure about that? I mean the F31 from the dashboard (I don't know if there's a F31 next to the battery) and without this fuse my climate control (not the digital one) doesn't work, but my reversing lights does. I will double check this tonight and keep you up-to-date.
Anyway, any tip of where I should look for for the reversing lights circuit? I mean, the fuse blows when I move the shifter to the right side (it doesn't matter if I switch to fifht or reversing gear). Before I had a problem with the cigarette lighter as well, and I saw somewhere that the shifter can pintch it's wire, causing a shortcut. So I really believe that there's something in the central console.
Thanks for the help.
Anyway, any tip of where I should look for for the reversing lights circuit? I mean, the fuse blows when I move the shifter to the right side (it doesn't matter if I switch to fifht or reversing gear). Before I had a problem with the cigarette lighter as well, and I saw somewhere that the shifter can pintch it's wire, causing a shortcut. So I really believe that there's something in the central console.
Thanks for the help.
Fuse F31 is only in the dashboard fuse box. It supplies the reversing lights, parts of the climate control system and other consumers if fitted.
If your reversing lights are working, then the short will not be in that circuit.
Are you looking at the correct fuse? The cigar lighter is on fuse F44, which is next to fuse F31 in the dashboard fuse box.
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If your reversing lights are working, then the short will not be in that circuit.
Are you looking at the correct fuse? The cigar lighter is on fuse F44, which is next to fuse F31 in the dashboard fuse box.
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Update: Yes! You were right about my reversing lights not working. I just checked yesterday at night and they doesn't work. Do you have any tip where I could look for a shorcut?
First you have to ascertain which circuit the short is in. If you don't have automatic climate control or headlamp washers, it's probably either the climate control fan or the reverse light circuit.
Make sure the fan is switched off and the car is not in reverse gear, then fit a new 7.5amp fuse to F31. Switch the ignition on without starting the engine and listen for the fuse blowing. If it doesn't blow, switch the fan on. If the fuse doesn't blow and the fan works, the short is likely to be in the reversing lights circuit. You would need to check the wiring from fuse F31 in the dashboard fuse box (B2) to the reversing lights (F30 left and F31 right). Other components in the circuit are the engine compartment fuse box (B1) and the reverse light switch (I20) on the gearbox.
Colour codes for the wiring diagram below are:
A = Light Blue
S = Pink
BN = White/black
H = Grey
M = Brown
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Wow! Thank you, man!
That's what exactly happens:
If I fit a new F31 fuse everything works 'till I connect my reverse gear. Then my (not automatic climate controll) stops working, my radio stops for a couple of seconds and, of course, the fuse blows. I am 100% sure that is something about my reversing lights and I am going to take a look tonight and tomorrow, and I am going to look for shorts on the connectors (like melted or something), but I saw a couple of italians in a italian forum that had exaclty the same problem. One of them said that his problem was in the reverse light switch on the gearbox. It was soaked in oil and the internal seal in the switch broke, causing a shortcut. Bu, that kind of swtich is just a switch that make two wires having contact to each other. Or am I wrong? Anyway, my italian is not the best
and that's what I understood from that story. I saw somewhere else that even the cigarette lighter light can cause that kind of problem, and like I said, I also HAD problem with my cigarette lighter (but its light still doesn't work because it blew and that doesn't botter me much).
Making shorter:
I am going to check the connectors and try to follow its wire untill the reverse light switch;
If I don´t find anything wrong, then I change my reverse switch;
If both doesn't help, then I'll check inside my central console for a short somewhere.
Anyway, THANK YOU VERY MUCH and I'll keep you up-to-date about my case.
Sorry if my english is not the best and I'll give you credits if I solve my problem.
That's what exactly happens:
If I fit a new F31 fuse everything works 'till I connect my reverse gear. Then my (not automatic climate controll) stops working, my radio stops for a couple of seconds and, of course, the fuse blows. I am 100% sure that is something about my reversing lights and I am going to take a look tonight and tomorrow, and I am going to look for shorts on the connectors (like melted or something), but I saw a couple of italians in a italian forum that had exaclty the same problem. One of them said that his problem was in the reverse light switch on the gearbox. It was soaked in oil and the internal seal in the switch broke, causing a shortcut. Bu, that kind of swtich is just a switch that make two wires having contact to each other. Or am I wrong? Anyway, my italian is not the best
and that's what I understood from that story. I saw somewhere else that even the cigarette lighter light can cause that kind of problem, and like I said, I also HAD problem with my cigarette lighter (but its light still doesn't work because it blew and that doesn't botter me much).Making shorter:
I am going to check the connectors and try to follow its wire untill the reverse light switch;
If I don´t find anything wrong, then I change my reverse switch;
If both doesn't help, then I'll check inside my central console for a short somewhere.
Anyway, THANK YOU VERY MUCH and I'll keep you up-to-date about my case.
Sorry if my english is not the best and I'll give you credits if I solve my problem.
Yes... the reversing light switch is just an on/off switch. I can't imagine anything going wrong in the switch to cause a short.
As the short occurs when you select reverse gear, it's likely to be between the switch and one or both of the reversing lights. Disconnect the left rear light connector, then with a new fuse F31, switch the ignition on and select reverse gear. If the fuse blows, then the problem is between the switch and the right rear light. To confirm, switch the ignition off, then disconnect the right rear light connector and fit a new fuse, then ignition on and select reverse gear. Report back what happens.
When you switch the ignition on with one or both of the rear lights disconnected, you may get bulb failure warnings on the dashboard. The warnings will go when the lights are reconnected.
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As the short occurs when you select reverse gear, it's likely to be between the switch and one or both of the reversing lights. Disconnect the left rear light connector, then with a new fuse F31, switch the ignition on and select reverse gear. If the fuse blows, then the problem is between the switch and the right rear light. To confirm, switch the ignition off, then disconnect the right rear light connector and fit a new fuse, then ignition on and select reverse gear. Report back what happens.
When you switch the ignition on with one or both of the rear lights disconnected, you may get bulb failure warnings on the dashboard. The warnings will go when the lights are reconnected.
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Another question: where do you get these diagrams from? Is it from eLearn? I don't know how to save a page. Anyway, there is a diagram that shows the whole reversing light places and I am still figuring out how to save that page and bring to my car.
Yes... they are from eLEARN. I save them using the "Snipping Tool" in Windows 7.
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Update: I finally found the problem. It seems that the previous owner had a problem with the right reverse light bulb. The connector of the backlight was damaged and he made a bridge from that connector 'till the bulb itself, BUT THAT MONKEY FORGOT TO ISOLATE THE WIRE WITH TAPE and it was shorting with the ground. I couldn't believe when I saw it.
Thank you for your help. Without your tips I couldn't never come up with the reversing light problem. I was still thinking it was a problem with my central console.
This topic can be closed!
Juan.
