Backups lights not working on Laredo'91
Hello,
I've been browsing the web for days trying to find what's wrong with my backup lamps which are not working when I back up. I've cheched the whole circuit up to the neutral safety switch (I have an AW-4 transmission) - the reverse switch is acting okay when reverse is engaged. I have a brown with a green line going to the lamps from the safety switch plug and on the other side a blue with a white line. I can turn on both lights if I apply 12V to the brown green wire. I suspect the blue/white is not powering the light so my questions are : - is this one connected directly to the battery or the computer ? - are there any fuse I may check (so far I haven't found any visible ones related to this switch ? - is it possible to bypass the blue wire by connecting it directly to the battery ? Any help will be appreciated ! Thanks ! Lionel |
Re: Backups lights not working on Laredo'91
I admittedly know "0" about which wires go where, but I would warn you that applying current where there is none can be a VERY bad thing. I would get a wiring schematic and backtrace until I found the problem and repair it correctly. Good Luck, Bruce |
Re: Backups lights not working on Laredo'91
I admittedly know "0" about which wires go where, but I would warn you that applying current where there is none can be a VERY bad thing. I would get a wiring schematic and backtrace until I found the problem and repair it correctly. Good Luck, Bruce |
Re: Backups lights not working on Laredo'91
I admittedly know "0" about which wires go where, but I would warn you that applying current where there is none can be a VERY bad thing. I would get a wiring schematic and backtrace until I found the problem and repair it correctly. Good Luck, Bruce |
Re: Backups lights not working on Laredo'91
I admittedly know "0" about which wires go where, but I would warn you that applying current where there is none can be a VERY bad thing. I would get a wiring schematic and backtrace until I found the problem and repair it correctly. Good Luck, Bruce |
Re: Backups lights not working on Laredo'91
It probably doesn't matter, but what 'kind' of Laredo do you have. I
have a CJ7 Laredo and love it. Meanwhile is sounds like you have a bad connection in the switch. Some of those switches are extremely expensive. Here is a link on rebuilding one kind of them: http://web.archive.org/web/200503070...echtippage.htm Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) Lionel wrote: > Hello, > > I've been browsing the web for days trying to find what's wrong with > my backup lamps which are not working when I back up. I've cheched the > whole circuit up to the neutral safety switch (I have an AW-4 > transmission) - the reverse switch is acting okay when reverse is > engaged. I have a brown with a green line going to the lamps from the > safety switch plug and on the other side a blue with a white line. I > can turn on both lights if I apply 12V to the brown green wire. > > I suspect the blue/white is not powering the light so my questions > are : > - is this one connected directly to the battery or the computer ? > - are there any fuse I may check (so far I haven't found any visible > ones related to this switch ? > - is it possible to bypass the blue wire by connecting it directly to > the battery ? > > Any help will be appreciated ! Thanks ! > > Lionel > |
Re: Backups lights not working on Laredo'91
It probably doesn't matter, but what 'kind' of Laredo do you have. I
have a CJ7 Laredo and love it. Meanwhile is sounds like you have a bad connection in the switch. Some of those switches are extremely expensive. Here is a link on rebuilding one kind of them: http://web.archive.org/web/200503070...echtippage.htm Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) Lionel wrote: > Hello, > > I've been browsing the web for days trying to find what's wrong with > my backup lamps which are not working when I back up. I've cheched the > whole circuit up to the neutral safety switch (I have an AW-4 > transmission) - the reverse switch is acting okay when reverse is > engaged. I have a brown with a green line going to the lamps from the > safety switch plug and on the other side a blue with a white line. I > can turn on both lights if I apply 12V to the brown green wire. > > I suspect the blue/white is not powering the light so my questions > are : > - is this one connected directly to the battery or the computer ? > - are there any fuse I may check (so far I haven't found any visible > ones related to this switch ? > - is it possible to bypass the blue wire by connecting it directly to > the battery ? > > Any help will be appreciated ! Thanks ! > > Lionel > |
Re: Backups lights not working on Laredo'91
It probably doesn't matter, but what 'kind' of Laredo do you have. I
have a CJ7 Laredo and love it. Meanwhile is sounds like you have a bad connection in the switch. Some of those switches are extremely expensive. Here is a link on rebuilding one kind of them: http://web.archive.org/web/200503070...echtippage.htm Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) Lionel wrote: > Hello, > > I've been browsing the web for days trying to find what's wrong with > my backup lamps which are not working when I back up. I've cheched the > whole circuit up to the neutral safety switch (I have an AW-4 > transmission) - the reverse switch is acting okay when reverse is > engaged. I have a brown with a green line going to the lamps from the > safety switch plug and on the other side a blue with a white line. I > can turn on both lights if I apply 12V to the brown green wire. > > I suspect the blue/white is not powering the light so my questions > are : > - is this one connected directly to the battery or the computer ? > - are there any fuse I may check (so far I haven't found any visible > ones related to this switch ? > - is it possible to bypass the blue wire by connecting it directly to > the battery ? > > Any help will be appreciated ! Thanks ! > > Lionel > |
Re: Backups lights not working on Laredo'91
It probably doesn't matter, but what 'kind' of Laredo do you have. I
have a CJ7 Laredo and love it. Meanwhile is sounds like you have a bad connection in the switch. Some of those switches are extremely expensive. Here is a link on rebuilding one kind of them: http://web.archive.org/web/200503070...echtippage.htm Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) Lionel wrote: > Hello, > > I've been browsing the web for days trying to find what's wrong with > my backup lamps which are not working when I back up. I've cheched the > whole circuit up to the neutral safety switch (I have an AW-4 > transmission) - the reverse switch is acting okay when reverse is > engaged. I have a brown with a green line going to the lamps from the > safety switch plug and on the other side a blue with a white line. I > can turn on both lights if I apply 12V to the brown green wire. > > I suspect the blue/white is not powering the light so my questions > are : > - is this one connected directly to the battery or the computer ? > - are there any fuse I may check (so far I haven't found any visible > ones related to this switch ? > - is it possible to bypass the blue wire by connecting it directly to > the battery ? > > Any help will be appreciated ! Thanks ! > > Lionel > |
Re: Backups lights not working on Laredo'91
> It probably doesn't matter, but what 'kind' of Laredo do you have. I
> have a CJ7 Laredo and love it. It's a Cherokee Laredo 2.5L. I am working a lot on this vehicle I've been using now for a couple of months. I love this vehicle. > Meanwhile is sounds like you have a bad connection in the switch. Some > of those switches are extremely expensive. Here is a link on rebuilding > one kind of them:http://web.archive.org/web/200503070...rtdevils.org/b... Thanks for the link. I believe the switch is okay as I've already done the continuity test the article mentions . I've checked the "reverse" pins (A-E) on the switch and I have no resistance when reverse is engaged (circuit is closed) and no continuity when reverse is not engaged (circuit is open) so I assume the switch is doing its job. The Haynes manual mentions the wire before the switch is hot at all time. By "hot", my initial question was to know if I can connect it directly to the battery. So far I haven't found 12V on this wire so I am tempted to bypass this wire but I prefer to be sure before doing that, I won't kill the safety switch. As pin "A" is also responsible for 1-2nd speed and 3rd, is there a way to test those modes are engaged ? The differences between D, 1-2 and 3 are not striking a lot to me so far. I guess I should be feel a difference and so far I am not. Lionel > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > Canadian Off Road Trips Photos: Non members can still view! > Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590 > (More Off Road album links at bottom of the view page) > > > > Lionel wrote: > > Hello, > > > I've been browsing the web for days trying to find what's wrong with > > my backup lamps which are not working when I back up. I've cheched the > > whole circuit up to the neutral safety switch (I have an AW-4 > > transmission) - the reverse switch is acting okay when reverse is > > engaged. I have a brown with a green line going to the lamps from the > > safety switch plug and on the other side a blue with a white line. I > > can turn on both lights if I apply 12V to the brown green wire. > > > I suspect the blue/white is not powering the light so my questions > > are : > > - is this one connected directly to the battery or the computer ? > > - are there any fuse I may check (so far I haven't found any visible > > ones related to this switch ? > > - is it possible to bypass the blue wire by connecting it directly to > > the battery ? > > > Any help will be appreciated ! Thanks ! > > > Lionel- Masquer le texte des messages précédents - > > - Afficher le texte des messages précédents - |
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