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PGM-FI System
Primary Heated Oxygen Sensor (Primary H02S) (Sensor 1) (cont'd)
(From
page
11 -113)
('98 model)
,,
----
---- -- --
- - - - - - - -
--
_·_·_
·_
·_
·- 0- ·_·_·-
.----
---
·
I
Check for an open in the wire
I
IPH02S IInel:
1_
Turn the
ignition switch
OFF.
2_ Connect
ECM/PCM
connector
terminals C16 and C18
with a
jumper
wire.
3_
Turn the igniti
on
switch ON
(11).
4_
Check t
he
Primarly
H02S
(Sensor
11
output
voltage
with
the scan
tool.
1
YES
Repafr open in the wire between
"-
Is there 1.0
V or more?
/'
the ECM/PCM IC161
and the
Primary H02S (Sensor 1).
L
___________
_
_
NO
--
_
.
_._._._
.
_
.
-
-'
-
"-'-'-'-'-'-'---
-- '-'- '-'
Substitute. known·good ECMI
peM
and
recheck
.
If
symptoml
indicetion goes away. replace
the original ECM/PCM.
11-114
ECM/PCM CONNECTOR C 131 PI
11 12
1/ 1/
/
71
8
19
V
1/
~/
/
1/
V
22
~3
V
~5
PH02S IWHT}
SG21GRNI
BlKI
'----
I
I
_
.
_
.
_
.
~i:!.
~~~~f-.!~~~~~~r:n~n.a~.
_._.j
JUMPER WIRE
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Troubleshooting
