Engine Control Module (Ecm) - Honda Prelude 1993 Service Manual

Tho Maltunction Indlc.tor Lamp
(MlLl nover com6! on l6vcn tor
two sgcondsl aftei ignition i3
tuhgd on.
Inspect No. 13 METER 110 A)
fuse (in the under-dash fuse/relay
oox,.
ls the low oil p.essure light on?
Turn the ignition switch OFF.
Connect the test harness between
the ECM and connectors (se€
page 1 1-45).
R6palr opan in YEL wir6 botwoon
No. 13 METER (1O A) ture.nd
gaugo alrombly.
Turn the ignition switch ON.
- RaDloco th6 MIL bulb.
- Ropair op6n in 8LU/WHT wire
botwoon ECM lA13l and
gaugs a88ombly.
ls the MIL on?
Ropalr opon in wiro(sl botwson
ECM and GlO1 {locatod at thor-
mostat housing) that had moro
than 1.0 V.
ls thsre less than 1.0 V?
Subrtituto a known-good ECM
6nd rechock, lf symptom/lndica-
tlon gooa away, raplaco tho origi
nal ECM.
Troubleshooting Flowchart - Engine Control Module (ECM)
|
423
t-.-----+-
I
I LoooooooooooQo I ooooo999l1!9!t!1!!lg{ ooooooooooo I
|---T-
L Le.. than 1 .0 V? --{
a,
+-
o o o o o o o o o o o o o
o o o o o o o o I o @ # q P t } | o o o o o o o o o o o
o o o o o o d o o o o o o I o o o o o o o o
o o o o o o o o o o o
Measure voltage between body
ground and the tollowing termi-
nals individuallv: A23, A24.
G 1 0 1
1 1 - 5 1