Re: engine manual only...the 2.4 engine code is 2L as far as I know.
Toyota do (or did) a 2L, 3L engine repair manual RM123E (parts TRM123E)....
The manual states its applicable to cressida, hilux, dyna100, dyna150... LY61, LX80, LN80, LH80, 85,90,106,110, 111 series.
Does'nt mention hiace, but its engine manual only....
So you may be able to get engine manual for the base engine....but not one that covers your EFI system maybe.
Maybe try asking Toyota for workshop/repair manuals?...I got mine from a helpful toyota dealer in Isle of Wight