John Deere 6600 Electrical Problem

[Lars S]

Hi, am after some help with an electrical issue on a John Deere 6600. A few weeks ago, the radio stopped working. I have taken this out and bench tested it and it works perfect. I have checked the fuses which are all good and the wiring for continuity. However, i still seem to only get a reading of around 3v with voltmeter. The cab light next to it works fine. In addition, i have also had the front cab roof lights stop working. Again i have bench tested this and they work perfect, yet there doesn't seem to be any voltage at the connectors, and again the fuse is fine, as well as all the other lights function perfect.

Any advice much appreciated.

 

[solo]

It is often mentioned on here that the wiring loom that goes up the rear right hand pillar by the puh handle can rub through. Maybe worth a look.

 

[Tractortech]

Now Then..
There is a connector in front of the rear cab pillar underneath the heater control console somewhere. Water can get in and corrode the pins.. It's the connection just above the number 2 in this parts page picture..

 

[Simon Chiles]

Now Then..
There is a connector in front of the rear cab pillar underneath the heater control console somewhere. Water can get in and corrode the pins.. It's the connection just above the number 2 in this parts page picture..

I think you’re right, however I would have described the connector as being under the console where the pto speed change lever is, or at least that’s where it was on my 6810. Symptoms were voltage to everything just not enough current to make the lights etc work.

 

[Lars S]

Thanks for that I have had this connector apart and cleaned the pins etc they where all pretty good apart from a bit of debris. Unfortunately this hasn't made any difference. However I have found that when I remove the fuse for the front roof ligths, there is no voltage reading in fuse port when the light switch is on..I have checked the relays and they are all good.

 

[chris990dbtractor]

Hi
I have lost all my indicators
Indicator lights on dash both lite but trailer’s 1&2 are flashing on dash

 

[flywheel]

Couple of years ago my 6400 radio would work intermittent...after taking it to local jd mechanic for sumthing else he found cable running up front right pillar ,a t piece corroded..sorted t piece problem sorted ..

 

[flywheel]

T piece like this kinda ....