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(From page
11-110)
I
Check for a short
in
the
H02S:
1. Turn the
ignition
switch OFF.
2.
Disconnect the Primary H02S
(Sensor
1) 4P
connector.
3.
Start the engine
and
let
it idle.
4.
Check the
Primary
H02S
(Sensor
1)
output
voltage with
the
scan
tool.
Does
it stay at
0.1
Vor less?
"-
NO
I
Replace the
H02S
ISensor
11.
/
I
YES
PRIM
ARY H02S Is.nsor 1141'
CONNECTOR CC111)
Check for a
short in
the
wire
IPH02Stinel:
,
.
Turn the
ignition switch OFF
.
2.
Disconnect
the
ECM/PCM
con-
nector
m
(16P), C (31P)*).
3.
Check
for
continuity
between
the
Primary H02S
(Sensor
1)
PH~2S
CWHT}
1
2
fl
3
4
4P
connector terminal
No.1
and
body
ground.
Wire side
of
female terminals
Repair
short In the wire
between
"-
YES
Is
there
continuity?
tho
ECM/PCM
ID7, C1S'} and
the
Primary
H02S
(Sensor
11.
NO
Substitute a known-good
ECMI
PCM and recheck.
If
symptoml
indication
goes away. replace the
original
ECM/PCM.
'
:
'98
model
Icanl'd)
11-111
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Table of Contents
Troubleshooting
