No thottle or acceleration on '06 Fortis Unit - Technical Troubleshooting discussion in Forkliftaction's forums

Hyster H60FT:
No thottle or acceleration on '06 Fortis Unit

I have a 2006 Hyster Fortis H60FT unit that will crank but only run at idle rpm's. All hydraulic functions work as well. However, I have no throttle response when depressing the gas pedal, just idle RPM's. The display is showing me two service codes: 524261-2 and 522752-9. This unit has a Vortec GM 2400 (2.4L?) LPG. The customer states that they were operating the unit and when they were done, shut it off, and when they tried to use it again, it wouldn't run above idle. We checked all fluid levels. They are fine. We replaced the oil sending unit, but still nothing. All functions seem to be normal otherwise... Can anybody help me? Thanks in advance!

Posted 30 Jan 2010 00:20
Modified 30 Jan 2010 00:23 by poster
Discussion started by jody_j
Alabama, United States

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according to the list of fault codes, 524261-2 is "ECU 5-Volt Sensor Supply A Incorrect Output" and 522752-9 is "Cam Sensor No Signal".

It seems like the accelerator pedal is not recieving 5v or too much voltage(recieving battery voltage). I would start by disconnecting the accelerator pedal and checking the supply voltage...if the voltage is too low or non their might be a short somewhere or a broken wire..if not then ECU is bad, same if the supply voltage is battery voltage. Now if the supply voltage is 5Volts then it seems like the accelerator pedal is fried and causing a short and causing a incorrect output volage & Sensor no signal.

Posted 1 Feb 2010 13:46
Reply by CLTL
Ontario, Canada

Commercial Lift Truck

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