Case SR160 won't run

[strykerakamack]

Ok was getting OPRPR code occasionally with the lap bar being the problem not too bad as had like a 15 second delay
before machine would stop but not shut off .
Then I get OPRPR with immediate engine cut off .( this was due to seat switch )
Replaced both , closed machine back up lowered lift arms , regen came up let it run for its cycle and shut it down .
Now when went to restart it went thru normal prestart beeps as usual , started up than ran for 15 seconds and shut down .
Im now getting codes 3659 , 9153 ,1051
Now in book these codes relate to the can bus system and high voltage .
the battery has 12.6 volts .
Any ideas where to start looking ?????
And can cab be tilted forward with the arms down ?
Can't see how replacing two switches leads to a can bus failure
Thanks in advance for any help

 

[gggraham]

Cab can't be tilted with arms down. Best way is take lines off lift cylinders and use a shop crane or another machine to lift arms. 2 codes seem to point to the ECU, get the cab up and check connections at ECU and UCM. If I remember the main harness is on the left side down near your feet we had a few issues with wires being pinched or broken where this main harness runs back it is a tight turn.

 

[strykerakamack]

Kinda figured cab a no go with arms down after looking more closely .
Can the red release lowering valve be held open and lift arms be raised ?
Went and wiggled all the wires got machine to run for about 2 minutes then went to move it to its normal parking spot ...... came up 2 foot short :0
then it shut down only one code thrown 3659 , now book shows two different engine types for code 3659, FHS or ISM-IDI .
How do I figure out which engine is in my machine ??
Thanks

 

[gggraham]

Pulling that red release lowering valve doesn't work to raise. Better and faster to remove lines. Your machine should be ISM. Wiggled harness and it worked I suspect you have a bad wire/wires somewhere. Cut the harness open and check the wires I'd bet you have broken or rubbed wires.

 

[strykerakamack]

Ok Pulled harness on left pillar off , one purple wire seemed bad so spliced in a new section and one wire down by the floor was worn thru that was next to a ground block fixed that too.
So still no joy fired and ran for 15 seconds and died .
only one code 3659 which is a ECU "battery voltage high" code which gives :
1. The alternator has failed. 2. The wiring harness has failed. 3. The battery has failed. 4. The ECU has an internal failure
Ok So first thing was check alternator , that showed 14.1 running
battery at rest was 12.3 So I pulled that at ran load tester ...... Failure replace battery it says
Ok New battery installed , passed load test prior to install ...... Engine Quit again still code 3659
Now manual says check wires from battery to alternator and battery to ECU .
can't get good look at that as radiator in way and cab is closed .
So at this point it's still a mystery
Now is there a way to "clear" the codes yourself ? or is that a dealer only "plug in their tool to do it ?
Mobile service is $130 an hour plus $3 per mile to get here from case dealer .
Just seems weird hitting the trifecta with lap sensor and seat sensor then battery .
Did the battery cause it all ? ECU cause it ?