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Electrical Troubleshooting ('97 Model)
Troubleshooting Flowchart - AfT Gear Position Switch (Short)
•
aBO U
Scan Tool
indicates
Code
Possible Causa
Pl105.
• Short in AfT gear position
switch
• Self-diagnosis
[Q!j
indicator light
wire
blinks five times.
• Faulty AIT gear position switch
NOTE: Code
P1705
(5)
is
caused when
Check
and record the freeze data
the PCM receives two gear position
in
case
it
is nceded
later
for prab-
inputs
at the same
time.
lem verification.
I
Observe the AIT Gear Position
Indicator:
1.
Turn the ignition switch ON
(II)
.
2.
Observe the
AfT
gear position
indicator,
and
shift to
each
position
separately.
Does any indicator stay on
NO
The system is OK at this
time.
when the
shift lever
is
not
in
Cheek the wire harness for dam-
that
position?
age.
YES
Disconnect
the
Aff
gear
position
I
switch
connector.
00
all
gear position indicators
YES
I
Replace the AIT gear position
go
out?
I
switch.
PCM CONNECTORS
NO
lG1
(BRN/BLKJ
r-®
ATPR (WHTJ
Connect
th
e AfT
gear position
A (32PJ
-
switch connector.
1112
"I
,FeD
V
910
"1
' 2
3
,r,
[781
1
'2V
151&1
71819
V
2 223
24]
/
,/
1112 131415
11117
181
Measure ATP R
Voltage:
k:1!
V
V V
Ii:
Ii:
Ii:
22
24,.
1.
Shift to
all
positions
other
than
B (25PJ
lID
lG2 (BRN/BlKJ
V
2.
Measure
the voltage between
the
816
and A9 or A22 termi-
Wire side
of fema
le
terminals
oals.
Check for short in the wire
I
between the B16
terminal
and the
AfT gear position switch or AIT
"-
NO
gear position indicator. rf wire is
Is there battery
Voltage?
/ '
OK,
check for 100541 tenninal
frt
in
YES
the PCM
connectors.
rf
necessary,
substitute a known-good PCM
lG1(BRN/B~
and recheck.
Measure ATP NP Voltage:
111
2
9"
11
1
'
"
,r.
,
17178l
1.
Shift
to
all positions
other
tha
n
,
,
5 •
IliJ
or
1fJ.
1 12"
V
1511171819
23
24
1
/
1
/
11
121314 15"
n
"
I
2. Measure the voltage
betwee
n
V
27
Ii:
li:L':
22
24,.
the
825
and A9
or A22 termi-
nals.
Check for short in the wire
V
ATP NP (lTGRM
lG2 (BRN/BlKJ
between the B25 terminal and the
AIT gear position
indicator,
or a
short In the wires between the
NO
AfT gear position indicator and
Is there
battery
Voltage?
/
the AfT gear position
switch.
If
I
YES
wires are
OK.
check for loose
ter-
minal
fit
in the PCM
connectors.
K
necessary. substitute a known-
To
page
14-69
good PCM and recheck.
14-68
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Troubleshooting
