4046HC electrical problem

[Lionsfan6]

Hello everyone. I found myself in a bit of a situation today. I installed a radio in my 4046hc today and everything was great. I tried it out and everything worked great. I shut the tractor down, went in for dinner, came back out an hour later and when I started it up the radio didn't come on. I thought maybe a wire came loose but when I went to back the tractor up the parking brake alarm went off even though the brake was off. It continued to go off when i went forward as well. Its then that I noticed the dash panel lights weren't working and my gauges weren't working either. I stopped it, shut it down and checked every fuse in the cab wall and under the dash on the left side, all were fine. I checked under the hood, found one wire running along the bottom of the radiator screen that had been gnawed on by a mouse so I cut it and wire nutted it back together and still nothing. I checked up top under the canopy by didn't see any fuses up there, any ideas what the problem might be?

 

[Rc4510]

Hello everyone. I found myself in a bit of a situation today. I installed a radio in my 4046hc today and everything was great. I tried it out and everything worked great. I shut the tractor down, went in for dinner, came back out an hour later and when I started it up the radio didn't come on. I thought maybe a wire came loose but when I went to back the tractor up the parking brake alarm went off even though the brake was off. It continued to go off when i went forward as well. Its then that I noticed the dash panel lights weren't working and my gauges weren't working either. I stopped it, shut it down and checked every fuse in the cab wall and under the dash on the left side, all were fine. I checked under the hood, found one wire running along the bottom of the radiator screen that had been gnawed on by a mouse so I cut it and wire nutted it back together and still nothing. I checked up top under the canopy by didn't see any fuses up there, any ideas what the problem might be?

Double check your wires on radio and make sure everything is correct,check the grounds to make sure there good.hope you find the problem.let us know what you find

 

[Lionsfan6]

I forgot to add, after I realized I had a problem I pulled the connections off the radio and the problems persisted. Makes me think I blew a fuse somewhere but i couldn't find one blown. Everything else still works; headlights, interior light, heater, etc.

 

[Bluesteel]

Did you get the radio from the dealer? LS has a specific wiring harness for the radio. Did you use the factory harness or splice all the wires? I think your issue is with the radio wiring or as you said possible a fuse somewhere. Are your gauges still out?

 

[Lionsfan6]

Its not the dealer radio it's an aftermarket Boss radio. I had to install connectors on the stereo wires to individually plug into the LS connector. I looked through the manual and there isn't much on the electrical system so I rechecked all of my fuse boxes and found a blown fuse in the box inside the cab on the left of the dash. It was the hazard beacon fuse which I never would have guessed was related but after thinking about it all of the dash lights come on when you turn the key just like the radio so they must all tie in together somewhere. Someone smarter than me can probably elaborate. So now I have to figure out why the fuse blew and my first guess is I mixed up a couple wires so I'm off to pickup a voltmeter before I do anymore damage. Tracing the lines didn't work so well the first time. There are four speaker wires which are easy enough to trace but then there are three others which I assume are the continuos power, main, and ground. Two are located in the connector with the speaker wires and the third is independent. I'll be sure to post what wires are for what when I get it figured out.

 

[Lionsfan6]

After disconnecting the radio and replacing the fuse everything worked normal. The three speaker wires still have me confused. The independent one is pink and shows a constant 12v on the multimeter. The black one in the connector with all the other wires shows as the negative when I test it, and the blue with a white stripe also in the connector doesn't register anything with the tractor off or on both in testing for a current or a ground. I thought that the independent one would be the constant leaving the blue and white as the main but no dice unless there is something I'm missing. I hooked I up as such anyways and no surprise, no power to the stereo. So then I took the stereo out and checked the connections on the back. Everything gave me some voltage or negative until I tested the main power which give me nothing. So now both the tractor main and the stereo main aren't showing capable of handling voltage...

 

[Rc4510]

There is a wiring schematic somewhere in this forum and then cross it to radioe wires,speaker wires won't have battery voltage,I can't remember my colors.

 

[George2615]

If you haven't figured it out by Friday I'll look at mine this weekend and post a pin out of the radio plug.

 

[Lionsfan6]

double post.

 

[Lionsfan6]

I appreciate it. I might have gotten it but I'm going to wait a few days to make sure. I found out that after I replaced the hazard lamp fuse it blew the audio fuse in the column fuse box which was good the first time I checked. That was why my blue wire with a white stripe in the harness (accessory power) wasn't getting juice. So I replaced that, confirmed that the pink independent wire was the constant, that the black wire in the harness was the ground, and the blue with white stripe wire in the harness was the accessory power. After I confirmed that I double checked my speaker wires to make sure I was going hot to hot by checking the speaker mount which shows the + and - and found that the solid green wire on the right speaker is hot with the light green with a red stripe being the negative and the blue with red stripe was the hot and the white with blue stripe was the negative for the left speaker. I double checked that against the radio manual to make sure i was tying hot to hot and negative to negative with the wires in the radio harness and everything looked good. So i wired it all back up assured that i had done my due diligence, fired it up and all was well. Until i shut it off and fired it back up when it gave me a different issue, all of the warnings on the dash lit up. So i shut it off again, went up and disconnected the power antennae wire from the radio that i read to splice into the main power thinking that was literally the only thing i wasnt able to check with my multimeter. I clipped that wire turned the key and found that my dash panel lights were out again. So i replaced the hazard lamp fuse mentioned before turned it on and everything including the radio worked. I turned the tractor off half expecting the fuse to be blown again but when i turned it back on everythng was working to include the radio. So i turned it off and on several more times and all was good. Ill wait a while longer before i really trust it but ill be glad if that power antennae wire was the issue. Maybe its different with car audio systems, thats where i read it. One other thing was that the tractor only has two speakers and cars have four so i tied in the front and rear for the right together from the stereo and the same for the left when i pluggd them into the tractor speaker harness. If i blow another fuse that will be my last thing to try.

 

[vwnotrunning]

Could be your power antenna not shutting down after retracting. That would plain working fine until shut down. I do not think it is a good idea to tie the front and back speakers together. They may have separate internal amps and the single speaker tied to both amps may create an impedance problem and eventually burn out the final amp circuit. Sometimes the radio is made to operate only on one specific set of speakers and adjust the fade to only that set. Others with more knowledge my cone along and correct this!

 

[George2615]

Could be your power antenna not shutting down after retracting. That would plain working fine until shut down. I do not think it is a good idea to tie the front and back speakers together. They may have separate internal amps and the single speaker tied to both amps may create an impedance problem and eventually burn out the final amp circuit. Sometimes the radio is made to operate only on one specific set of speakers and adjust the fade to only that set. Others with more knowledge my cone along and correct this!

I agree with this. Don't tie F&R speaker wires together. Just use one pair (1+ and 1-) for each speaker. For the unused speaker wires on the radio put a wire nut or electrical tape on each one individually. The factory cab antenna is not a power antenna (unless you added a power antenna) the antenna just plugs into the antenna jack on the radio. There will be wires on the radio you won't need. Separately wire nut each unused wire. You will only need to use the following wires.
1 - 12V constant to retain radio memory channels
1 - 12V switched wire (goes on and off with the key sw.)
1 - ground
4 - wires for speakers (one plus and minus wire to each speaker) The radio may have 4 pairs of wires. 2 pair for front and 2 pair for rear speakers. Unless you've added 2 more speakers you are only going to use 2 pairs.
1 - antenna

If you add an external amp and more speakers then you will need to use other wires on the radio.

 

[Lionsfan6]

Ok, I'll pull the second set of speaker wires. I don't have a power antennae or a second set of speakers so now I gather those shouldn't be spliced into anything else. I had it hooked up originally just as George explained but that blew my fuse. I didn't have anything other that the wires above plugged in, no power antennae or second set of speakers. It's possible I had a set of speaker wires flipped, I know for sure that I had the power, ground, and memory wires correct. Would flipping the + and - on a speaker wire blow a fuse? After that I thought knowing the the power, memory, and ground where good it might have blown because the power antennae cable was shorting out somehow or the extra speaker wires so I plugged them all in. Not so good of luck with the power antennae which I agree with vwnotrunning, seems like the only reason it would blow when I shut it down rather than powering it on, so I pulled that and it worked last night through a couple cycles. I'll disconnect the rear speaker wires and tape them off tonight to be safe and report back. Thanks for all of the help everyone. Hopefully this discussion helps someone else's install go a little smoother.

 

[George2615]

Ok, I'll pull the second set of speaker wires. Would flipping the + and - on a speaker wire blow a fuse? After that I thought knowing the the power, memory, and ground where good it might have blown because the power antennae cable was shorting out somehow or the extra speaker wires so I plugged them all in. Not so good of luck with the power antennae which I agree with vwnotrunning, seems like the only reason it would blow when I shut it down rather than powering it on, so I pulled that and it worked last night through a couple cycles. I'll disconnect the rear speaker wires and tape them off tonight to be safe and report back. Thanks for all of the help everyone. Hopefully this discussion helps someone else's install go a little smoother.

Flipping the plus and minus on the speakers only changes the speaker polarity. The speaker will still work just not the way it should. You only need to hook up the wiring I mentioned in post 12. All other wires from the radio can be taped or wire nutted individually. Don't connect any of the unused wires together.

 

[George2615]

I started a new thread in the LS section on Radio Wiring for cab models with the pin out of the factory radio plug and pics.
I know this wiring is accurate for all 3000 series cabs and may be the same for the 4000 series cabs. Just look at your plug to see if colors are the same.

 

[CPSO15]

Where can I find wiring harness schematic for xr4046hc

 

[George2615]

If you are looking for the radio wiring here's the link. The color code should be the same for 3000 and 4000 series radio.

http://www.tractorbynet.com/forums/...io-wiring-xr3037hc-cab-models.html?highlight=

If you want the entire schematic you'll have to buy the factory service manual.

 

[CPSO15]

OK, Thank You Sir.