Honda Prelude 1993 Service Manual page 514

Electrical Troubleshooting
Troubleshooting Flowchart (cont'd)
PorrlbL cluto
Short or open in FAS {OBiY
RED) wi.€
Troubl€ in ECM
r Make sure llfts, iacks and satety stands 416
placed propsrly, and hoisl blackots aro
attachad to the corl6c-t position on tho ongino
(seo section 1).
. Whlle testing, bo caroful of the lotatlng flont
wheels.
s.||d.enodt
I D4 | Indlcato.
leht bld.. to|rtTi'tlmrt.
n.o!L
th. PGM.FI SYltem
(r.. !.ctlon 111.
15 ths Maltunction hdicator
L.mp (MlL) on ?
Start th€ ongin€ and wtrm it
u p t o n o r m a l o p e r r l i n o
temp6ratuao {tho rsdiator fan
comes onl.
Turn tho ignitfttn swhch OFF.
Connoct th6 Tolt Harnoss
botwo€n th6 TCM tr|d coonec-
tor3 (1+351.
Turn the hnition swhch ON
a.d wait Ior at l6aat two
ggcotxt5.
l\reaaure the voh.go tgtweon
the 016 {+) rnd A2gA26 (-l
torminab.
Ch.d(
to. l@a
TcM con-
rrcto.r,
ll nacortxy,
!t btti-
tul. ! known-good TCM and
rcch.ck.
Turn th6 ignition switch OFF.
Dkconnoct ths ToEt Haangss
from tho TCM.
L 6 6 v e c o n n 6 c t 6 d l o c a r
n6anoa8.
o o o o o o o o o o o
o o o o o o o Q o o o
o o o o o o o o o o o o
o o o o o o o o o o o o
Approx.5 v?
Turn th6 i{tnit'ron switch ON.
To prg6 1+lB
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