PeteG
Well-Known Member
Hi,
We have a 2003 Komatsu FB20M-3 serial number 24343A. It’s a 36v truck that just recently having an issue where when in forward or reverse it stutters and then stops. The warning lamp flashes 5 times, I’m assuming as a code 5, repeated until the key is cycled. Doesn’t seem to be voltage related, and the 2 traction controllers status lights show ok even when the truck warning flashes. When the throttle pedal is pressed 1/2 way, the truck will drive no problem, however once past approximately 2/3, the problem occurs. Im leaning towards the tps potentiometer, but I have no information on the trouble codes and what they mean. Just have operating manual right now, and it just lists a few generic heat related codes. Any ideas/information would be appreciated. Thank you!
We have a 2003 Komatsu FB20M-3 serial number 24343A. It’s a 36v truck that just recently having an issue where when in forward or reverse it stutters and then stops. The warning lamp flashes 5 times, I’m assuming as a code 5, repeated until the key is cycled. Doesn’t seem to be voltage related, and the 2 traction controllers status lights show ok even when the truck warning flashes. When the throttle pedal is pressed 1/2 way, the truck will drive no problem, however once past approximately 2/3, the problem occurs. Im leaning towards the tps potentiometer, but I have no information on the trouble codes and what they mean. Just have operating manual right now, and it just lists a few generic heat related codes. Any ideas/information would be appreciated. Thank you!