Medium and Heavy Trucks
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Hi, my name is ***** ***** you for asking your question, I will try and help you out.
Have you been having any other issues such as air pressure? If low on air it can be stuck in between gears.
or driveline is holding pressure on trans mainshaft not allowing full shift.
Try releasing brakes and rock truck if you can.
If needed explain how this came about just parked?
Let me know
I'm going to post some troubleshooting for you it will come in more than one answer to keep it moving along.
Fault Isolation Procedures
Code 72 (SID 59, FMI 7),
Failed to Select Rail Test
Procedure Condition Action
1. Key off.
2. Inspect starter/battery
,inline fuse holder and
PIM connections for
If okay Go to
If corroded or loose Repair wiring or battery
connections. Go to
If you have any trouble let me know its either a power issue to shifter issue
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Questions or problems let me know I'm happy to assist.Thank You,spanky