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Check Engine Light Code 746

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86K views 18 replies 11 participants last post by  wickser42  
#1 ·
Went out riding last weekend and along the way I noticed the check engine light had came on. I got home and checked the codes, I had 520207 with a 4 above it and 746 with a 4 also showing.

I checked the fuses and found the drive one was blown. I was hoping it would fix the issue but it didn't, now both codes still are showing but with a 5 instead of 4.

Has anyone had these codes come up? And possibly have a fix for it? I would like to see if I can fix it before driving an hour to the dealership! Any help would be greatly appreciated!
 
#2 ·
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check the plug on the rear axle for the tuff mode! make sure its plugged in
 
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#3 ·
Sorry! And the 520207 is the all wheel drive control if the plug is good check the wires for a short , scrape , break. if you find nothing would take to dealer for them to check the controller.
 
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#8 ·
Went out riding last weekend and along the way I noticed the check engine light had came on. I got home and checked the codes, I had 520207 with a 4 above it and 746 with a 4 also showing.

I checked the fuses and found the drive one was blown. I was hoping it would fix the issue but it didn't, now both codes still are showing but with a 5 instead of 4.

Has anyone had these codes come up? And possibly have a fix for it? I would like to see if I can fix it before driving an hour to the dealership! Any help would be greatly appreciated!
Did you ever find the issue? I have the same codes
 
#9 ·
As noted, the 746 is the code for Rear Differential Output. The 4 indicates the circuit is Grounded.

This means you have a hot wire grounded, most likely by a wired that the insulation has worn through and wire grounded. Which means blown fuses, popped circuit breakers and perhaps relays popped.

There is absolutely no reason to take your machine to the dealer. He's just going to charge you a small fortune to do what you can do yourself.

I have found the very best way to approach wiring problems is to take the bed off thus gaining full access to the engine compartment...where all this wiring runs!
To do this:
Remove everything from the bed.
Remove the two hinge bolts and gas cylinder clip as show on the drawing:
65926

The empty bed weighs around 75 lbs, so best to have someone on each side and lift it off and set it aside.

And find that wire!!!

Pirate
 
#11 ·
I don't have Turf Mode. So, is it the plunger rod or the solenoid coil that's hot. And is it solenoid coil energized that's hot?

An energized solenoid coil is typically hot to the touch. Thus circuits that use solenoids usually have them de-energized in the "normal" state.

So I would think the solenoid is only energized when the Turf Mode is engaged.

As a troubleshooting step, you can listen for the solenoid engaging and disengaging. Or you can take the solenoid out, set it on the ground and energize/de-energize to see if the plunger is moving.

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