Acura 1994 Integra Service Manual page 239

YES
PGM-FI
Heated
11-471
System
Oxygen Sensor Heater (cont'd)
YEL/BLK I+I
ORI{/BLK (-I
wire side
HO2S
44 N.m
{4.5 kgt.m, 33 lbf.ft}
Check for continuity to body
ground on terminals 3 and 4of the
H O 2 S .
Check for continuity between ter
minal4 and terminals 1 and 2 in-
dividually.
Turn the ignition switch ON.
At the HO2S harness. measure
voltage between YEL/BLK 1f lteF
minal and ORN/BLK l-) ter-
mrnal.
Turn the ignition switch OFF.
Disconnect the "A" connector
from the ECM.
Measure voltage between YEL/
B L K l + ) t e r m i n a l a n d b o d y
ground.
Turn the ignition switch ON.
At HO25 harness, measure vol-
tage between YEL/8LK (+) termi-
nal and ORN/BLK {-) terminal.
RoDair short in ORN/
BLK wir6 b6tw6on ECM
(A6l and HO2S.
ls there baftery voltage?
Ropai. opon in YEL/BLK
wire botwoan HO2S
.nd PGM-FI main relav.
Turn the ignition switch OFF.
Turn the ignition switch OFF.
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