Got a hyster E1.75xm F114 series, customer reported fault with no seat input. The dash was not working when i got to site, one of the guys said the boss there was messing around with the wiring to seat switch and then the reverse bleeper and reverse lights were flicking on/off. Found fuse 4 (keyswitch) blown. I tried a known good dash display and still nothing. This has the danaher controllers. Plug to seat is 8 pin which looks the same for trucks with e-hydraulics but this has manual levers. Both controller lights stay on green to indicate they are good. Are there any other hidden fuses on this truck?