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DISCUSSION FORUMS : Forkliftaction.communicate
Forum: Technical arena
Discussion:  burning up transistors (code co) toyota
Number of messages: 5

START MESSAGE:
jason_v
Florida, United States

I have a toyota that gets the error code CO. I replaced the transistors and the unit ran great. Then after a few minutes the code came back. Tested the transistors again and found one bad. I need to see if any body knows what can burn up the transistors. The unit is a toyota 5FBCU15 S/N 60692. I will be greatful for any help on this. Thanks in advance.

Posted 30 Apr 2010 07:12 AM Reply  Report this message
REPLIES: Sort replies by
toyzilla
Texas, United States
repeated SIT problems are usually battery related, if you are certain that the battery is good, remove it and check for cable problems on the cables to the drive motor (melted together or rubbed / smashed.) if none of those are the problem it gets more complex ...diodes, snubbers, cpu and dcsd boards. also you need to replace all three at one time. (very pricey) if you have transistor controlled lift you can get creative with some swapping but once overamp'd they're going to fail at some point.

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easier to ask forgiveness than to ask permission.

Posted 2 May 2010 06:21 AM Reply  Report this message
jason_v
Florida, United States

thanks for the info. now i have a path to take.

Posted 3 May 2010 09:01 PM Reply  Report this message
tabak
nas. Karpos, Macedonia, The Former Yugoslav Republic of
Hello, folks!I have a problem with TCM FB15H15 transistors for drive, for the second time burning up.The forklift after a while driving and stop the display show error A6 and transistors are burnt.


P.S I'm driving forklift  with tainted VTM card,whether the card cause to burning transistors.

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tabak_08@hotmail.com

Posted 1 Sep 2010 05:23 AM Reply  Report this message
jason_v
Florida, United States

Hi I would start with load testing the batt. Low batt voltage will burn up reistors.


Posted 8 Sep 2010 09:09 PM Reply  Report this message


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