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2009 Komatsu D39PX-21A E03

H

Hodevelopment

Member
Joined
Aug 9, 2025
Messages
6
Location
Texas
Have a 2009 Komatsu D39PX-21A dozer throwing a E03 code. Only turns on after about 1-3 minutes of operating. Won’t turn on when it’s in park no matter how long it runs. Machine runs strong and doesn’t go into to limp or bog down.
 
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