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Cat EP20KT codes 44 and 45

Have a Cat EP20KT that is coding a code 44 and code 45. It only goes in gear sporadically and won't move alot of the time. Does anyone know what code 44 and 45 refer to? thanks
  • Posted 16 Nov 2012 04:58
  • By MikeMan
  • joined 8 Feb'11 - 17 messages
  • Iowa, United States
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Showing items 1 - 6 of 6 results.
H did you solved the problem? I got the same.. code 44 and 45
  • Posted 11 Feb 2014 06:30
  • By Martin2000
  • joined 25 Oct'11 - 26 messages
  • Quebec, Canada
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you'll want to check your D1R and D1L diode block circuits,
could be a faulty armature diode , these would be located between the H-Bridge board and the IGBT's mounted on the heatsink assy.

i would also check the diodes on the drive board assy underneath the logic card. if any are burned you'll need to replace the board.

while in there check for any corrosion around the H-Bridge board thats mounted on the heatsink under the drive board, sometimes moisture can get in there and corrode up and cause problems in that area.
  • Posted 22 Nov 2012 20:36
  • By swoop223
  • joined 23 Mar'12 - 3,691 messages
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com
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code 44: faulty right armature diode (wire breakage, shorting) faulty SC1 current sensor, faulty logic card.

code 45:faulty left armature diode (wire breakage, shorting) faulty SC2 current sensor, faulty logic card.
  • Posted 22 Nov 2012 14:09
  • By hector_v
  • joined 17 Nov'11 - 42 messages
  • Puebla, Mexico
Saludos

hectorvargasm@msn.com
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hello I have the same error code 45 can somone help me please
my mail azoosamb at yahoo.fr
  • Posted 22 Nov 2012 06:43
  • By assane_s
  • joined 17 May'12 - 15 messages
  • toulouse, France
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serial number is ETB5B50128
  • Posted 16 Nov 2012 23:36
  • By MikeMan
  • joined 8 Feb'11 - 17 messages
  • Iowa, United States
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?serial number?
  • Posted 16 Nov 2012 22:29
  • By edward_t
  • joined 5 Mar'08 - 2,334 messages
  • South Carolina, United States
"it's not rocket surgery"
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