No Accelerator Stumped - Technical Troubleshooting discussion in Forkliftaction's forums

TCM FG25T3:
No Accelerator Stumped

sn A2h503400 dual fuel, no accelerator in either mode. Continuity wire check from terminal to terminal on 6 wire APP & 6 wires on TPS to ECU. Check for all recommended voltages at all specific terminal-ok. Replaced APP pot, ETC unit and ECU. Check ETC relay-ok suppling 12 volts to ECU. No codes-run scan with Hitachi hand set. APP shows to be working, 0.95v @ Idle, @ WOT 3.75v on both 1 & 2 Sensors. TPS 1&2 sensors shows 0.97v @ idle, 1.25v @ WOT (which on a working truck I've seen these voltages higher-which I believe is why I am not getting acceleration) I am not sure what else to check for, no acceleration, no codes, starts & runs relatively easy. Any help would be appreciated.

Posted 15 Jul 2021 02:13
Modified 15 Jul 2021 02:15 by poster
Discussion started by BATT
Michigan, United States

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Yes, that is were I am getting the specifications from. According to the manual on terminal 50 (TPS1) of ECU it should have 0.6 volts, terminal 69 (TPS 2) should have 4.5 volts. However I have been told by more than one that those parameters are misprinted (swapped around) in the TCM and Nissan manual.
I am getting 4.5v on term 50 (TPS1) and 0.6v on 69 (TPS2)

Posted 16 Jul 2021 21:24
Reply by BATT
Michigan, United States

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Hello,

Have you Service Manual ??

Regards

Stefano

Posted 16 Jul 2021 18:40
Reply by stefano_tcm
ITALIA, Italy

TCM Forklift spare parts
tcmricambi@gmail.com

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