John Deere 230 LC Starter Problems

[rmllarue91]

Why shimmy yes and I'm sure you've seen were they have tried usually looks like stray red wires run out side cab tied around mirrors and head in to a rainbow colored rats nest of other wires fuses tap maybe a pair of wire strippers they left behind and it looks like all that was shot with target load shot gun shells because the forgot what the new wires were added for lol

 

[Shimmy1]

My FAVORITE are those godforsaken blue three-way taps that push a cutter down into wire? Those things should be illegal. And the best part?? Always seem to be used in the sill harness on a trailer!! When they're done "fixing" they might as well take a side cutter and just start cutting. Get it over with.

 

[rmllarue91]

Haha funny you mentioned them did some work for a farmer ( not relative ) but he loved them order them by the bag along with these uninsulated clips for routing wire they worked great Untill the wire thought about moving and would short out. Wanted me to wire in starting system on 10 hp motor with 14 gauge wire.

 

[Shimmy1]

Scary, isn't it?

 

[707]

red/white : originates at keyswitch as red/black changes to r/w after load dump relay nothing else in that circuit other than another diode(battery relay diode) should be somewhere close the battery relay i think. check those diodes. if everything checks out, check those diodes. if your monitor is not lit, the diode has failed. it powers the load dump relay which should be the first relay on the left in the relay block.

 

[707]

after the load dump relay diode**

 

[rmllarue91]

Hey j little any update?

 

[jlittle2212]

Hey j little any update?

Changed key switch, still have the same problem. Where is the load/dump relay located 707?

 

[707]

So just to be clear...do you have dash lights?

 

[jlittle2212]

So just to be clear...do you have dash lights?

I do have dash lights.

 

[JWJDM]

You said alternator was replaced recently. Try removing wires from alternator and see if it start. Machine uses alternator to prevent starting while running. Diode trio in alternator may have failed and will prevent it from starting thinking engine is running. Have same problem recently with 120 & 160 excavators. Just a thought.

 

[707]

Start with JWJDM's suggestion first because it is infact a probable cause.

 

[707]

also when you testing the battery relay did you have power at the red/white wire?

 

[707]

the load dump diode is located inside the cab around the fuse panel area. it should be a cluster of 5 although you may not see all five. they are foal plugs about an inch in length and 1/4 inch in width, which little black stubs (diodes) sticking out of them. it might be easier to remove the rear plastics to get in around the fuse and relay blocks. check all of the diodes should only beep one way when testing with multimeter. one way being when you with the leads. diodes and wiring as follows.
V1— Battery Relay Diode (Blk and
Red/Wht)
V2— Load Dump Relay Diode
(Red/Blk and Red/Wht)
V3— Auxiliary Power Diode
(Blk and Red)
V4— Starter Relay Diode (Yel/Grn
and Blk/Wht)
V5— Windshield Wiper Relay
Diode (Blu/Blk and Blu/Red)
V8— Starting Aid Diode (Blk and
Blk/Red)

 

[jlittle2212]

also when you testing the battery relay did you have power at the red/white wire?

No power at the red/white wire.

 

[707]

do you have power out on red/blk wire of your keyswitch? if so locate the diode. test for continuity from keyswitch to diode. test diode if wiring ok. you will have to remove the plastic behind the seat for access. if diode is ok move to relay k15 which is the alternator relay, mounted at the very back by itself on the wall (only viewed with platsics off). check for power at pin 87. you will have power at 87 if your dash is lit. you can skip this one if you like. go to pin 5 on the load dump relay k1 (last one on the right bank). you should have power. its a straight shot the battery relay after this. do check v1 however. I have a schematic for this but I can not post or email it to you just yet. should be able to get it up by tomorrow morning.

 

[jlittle2212]

do you have power out on red/blk wire of your keyswitch? if so locate the diode. test for continuity from keyswitch to diode. test diode if wiring ok. you will have to remove the plastic behind the seat for access. if diode is ok move to relay k15 which is the alternator relay, mounted at the very back by itself on the wall (only viewed with platsics off). check for power at pin 87. you will have power at 87 if your dash is lit. you can skip this one if you like. go to pin 5 on the load dump relay k1 (last one on the right bank). you should have power. its a straight shot the battery relay after this. do check v1 however. I have a schematic for this but I can not post or email it to you just yet. should be able to get it up by tomorrow morning.

Wow, you are awesome.. I am not going to be around the machine tomorrow. Should be Saturday though.

The schematic would be a great help!!! :notworthy

Great thread and awesome help guys! Thanks to everyone who has chimed in so far!

 

[Shimmy1]

Great thread and awesome help guys! Thanks to everyone who has chimed in so far!

I just wish that the keyswitch would have fixed it for you. ops

 

[jlittle2212]

I just wish that the keyswitch would have fixed it for you. ops

You were great Shimmy!
That's how it goes sometimes!

 

[jlittle2212]

do you have power out on red/blk wire of your keyswitch? if so locate the diode. test for continuity from keyswitch to diode. test diode if wiring ok. you will have to remove the plastic behind the seat for access. if diode is ok move to relay k15 which is the alternator relay, mounted at the very back by itself on the wall (only viewed with platsics off). check for power at pin 87. you will have power at 87 if your dash is lit. you can skip this one if you like. go to pin 5 on the load dump relay k1 (last one on the right bank). you should have power. its a straight shot the battery relay after this. do check v1 however. I have a schematic for this but I can not post or email it to you just yet. should be able to get it up by tomorrow morning.

I did indeed have two diodes bad! Replaced both, cranked over and started perfectly! Thanks everyone for your help! Sorry it was so complicated! :usa