I don't remember any of Isuzu's vehicles running the fan motor with just the key in the ON position without the engine running.

It wouldn't be the first time a Hayne's manual is wrong.


1995 Trooper LS auto 3.2 DOHC /w SOHC intake
1989 Trooper 2.6 auto
1989 I-Mark RS DOHC 1.6
1991 Stylus XS DOHC 1.8