Discussion:
CAT M50DP -- No errors on display yet truck won't move...

My CAT won't move. It does everything else right lift, steer etc...
I pulled the cover on it put the logic board in diag mode but the instructions there fail the clarity test!
It says at the top of the block:
SYSTEM CHECK WITH STATIC DIAGNOSTICS
Disconnect battery prior to disconnecting drive fuse.

Since I can't find a "drive fuse" any where on the schematic, I'm pretty
much at a stand still.
There is a line fuse attached to the line contactor. However when I pull that fuse, the display still shows d.
I've tested that fuse and its good.
Anyway I just want to cycle thru the items in the list but can't get past that fuse...

Battery voltage is a 37.1 so I do have a partially charged battery.

At turn on the line contactor does pull in and a few seconds later drops back out. No other contactors do anything...
Thanks in advance,
Calvin
  • Posted 25 Mar 2017 07:27
  • By calvin
  • joined 14 Jul'16 - 19 messages
  • Illinois, United States

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Fact of the week
The two internal cavities in our nose called nostrils function as separate organs. Each nostril has its own set of turbinates and olfactory receptors. The two independent organs work together through a mechanism called the nasal cycle, where one nostril is dominant for air intake while the other rests and is better at detecting scents.
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