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'98 - 00 models'
-
The
MIL
has
been
reported
on.
I
-
OTC
P0122
is stored.
Problem verification:
1.
Start
the engine. Hold the
engine
at
3,000
rpm with no
load
(in
Park or neutral) until
the
radiator fan comes on,
then turn the ignition switch
OFF.
2.
Tum
the ignition
switch ON
(II).
3.
Check the throttle position
with
the
scan
tool.
TP SENSOR 3P CONNECTOR IC1301
Is there
approx.
10%
when the
YES
Intermittent
failure, system is
OK
.Cl..
throttle
is
fully closed and
at this time. Check for
poor
con-
/
'\
approx.
90'%
when the throttle
nactions
or loose
wires at
C130
is
fulty
opened?
(TP ••
n80r) and
at
the
ECM/PCM.
SG2
' \
2
I
3
vea
IGRN/BtKI
1
lVEL/BtUI
NO
I
Che<:k for an open or short in the
L®-
wire (VCC2
line):
1.
Turn the ignition switch OFF.
2.
Disconnect the TP sensor
3P
Wire side of female terminals
connector.
3.
Turn the ignition switch ON
(II).
4.
Measure
vo
ltage
between
the
TP
sensor
3P
connector ter-
ECM/PCM CONNECTOR C 131
P}
minals
NO.
1
and No.3.
SG2 IGRN/BtK}
j
11
2
3
/
5
/
t
81-
/
"-
NO
Is
there
approx.
5 V?
/ '
1
V
/
v
·
/ /
,.
17 :18
"
2O !21
22
231/1
25
28 27
'
28
29 i30 31
YES
vca
IYEL/BLUI
~
Check for an open in wire
(VCC2
IInel:
Mea sure
voltage
between
ECMI
Wire side
of
female terminals
PCM connector
terminals C18 and
C28.
Check for an
open or
short in
TP
I
sensor:
1.
Turn the ignition switch OFF.
"-
YES
Repair
open in the wire between
2.
At
the
sensor side, measure
Is there approx.
5 V?
/'
'he ECM/PCM IC28) and the
TP
resistance between the TP
I
NO
sensor.
sensor
3P connector terminals
~
No.1 and
No.
2 with the throt-
SG2
tie fully closed.
Substitute a known-good
ECMI
rl11213
))
I
,eM
and rec:heck.
If
prescribed
votblge
i.
now .vanable,
replace
,
~
the ... Iglnal
ECM/PCM.
TPS
(To page
11-106)
l®-
Terminal side
of
male terminals
(cont'd)
11-105
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Table of Contents
Troubleshooting
