Acura Integra 1998 Service Manual page 280

(From page 11-74)
Check tor an op6n in the wire
{lGP, lGl* linel:
Measure voltage between No. 3
terminal and body ground.
R e p a i r o p e n i n t h e w i r e
between PGM-Fl mein relay
and Pii.nary HO2S {Sonsor 11.
R e p a i r o p e n i n t h e w i r e
between No. 15 ALTERNATOR
SP SENSOR 17.5 A) tuse in the
und€r-d.sh fuse/rolav box and
Secondary HO2S (S€n3or 21.
ls there battery vohage?
Check for an opon in the wh$:
1. Turn the ignition switch OFF.
2. Reconnect the HO2S connec-
tor.
3- Disconnect the ECM connector
A (32P).
4. Turn the ignition switch ON 1fl).
5. Measure voltage between the
ECM connector terminals 46
or A5* and A10.
Repair open in tha wire betw.en
ECM {A6 or A5rl and HO2S.
ls there 0.1 V or less?
Substitute a known-good ECM
and r.chcck. tf 3ymptom/indica-
tion goes awey, repl.ce the odgi-
n e l E C M .
PRIMARY HO2S {Sensor 1} CONNECTOR C113
SECONDARY HO2S (Sensor 2ICONNECTOR C45tr
Wire side of female terminals
ECM CONNECTOR A I32P)
IGP
l G 1
so2HTC
{GRN/RET
c
4
tr
A , 4 \
'/ | PO2HTC \=/ \
ltoRN/BLKt \
-T--]
\
P G l
(BLK)
2
a 1f
lefil
tt
12
't5 t 5 1 ? t 8
t 9
20 22 23
25
26
l 2 8 23
Wire side of temale terminals
(From page '11-74)
C h e c k f o . a s h o r t i n t h e w i r e
(O2SHTC linel:
1. Turn the ignition switch OFF.
2. Disconnect the ECM connec-
tor A (32P).
3. Check for continuity between
the ECM connector 46 or A5*
termanai and body ground.
Rcpair short in the wire botween
ECM IAG or A5*l .nd HO2S.
ls there continuity?
Substituto a known-good ECM
and recheck. lf symptom/indica-
tion goes away, replac€ the origi-
nalECM.
3 r l 1 5 6
1 5 1 5 1 7 l A
* r P 0 1 4 1
1 1 - 7 5