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Electrical Troubleshootin g
Troubleshooting Flowchart - A/T Gear Position Switch (Short)
L l u
Po$ible Cause
' Shon in A/T gea. position
switch wire
. F.ulty A/T g€at position switch
NOTE: Code P1705 (5) is set when the
TCM receives two gear position inputs
at the same time.
TCM CONNECTOR A {26FI
WIRE SIDE OF FEMALE TERMINALS
{
Measure ATP D. Voltagel
1. Shift to all positions other than
o;.
2. Measure the voltage between
the Ag and 413 or A26 termi'
nals.
{
14-62
. OBO ll Scan Tool indicates Code
P1705.
. S6lt-diagnosis Pr-,.. indicator
light blinks five times.
Observe the A/T gear position
indicator:
1. Turn the ignition switch ON {ll).
2. Observe the A/T gear position
indicator, and shift each Posi-
tion separately.
The syslem is OK at this time.
Ch€ck the wite hotn€ss for dam-
a9e,
Do any indicators stay on when the
shift lever is not in that position?
Measure ATP R Voltage:
1. Turn the ignition switch ON (lli.
2 . s h i t t t o a l l p o s i t i o n s o t h e r
than E.
3. Measure the voltage between
the A11 and 413 or 426 termi-
nals.
C h e c k f o r s h o r t i n i h e w i r e
betwe€n the 411 termin.l and the
A/T gear position switch or A/T
g6ar position indicator. lf wire is
OK, check tor lo6e TCM connec-
tors. lf necessary, substitute a
known-good TCM and rech€ck.
l s t h e r e b a t t e r y v o l t a g e T
Measure ATP PN Volt.go:
1 . S h i f t t o a l l p o s i t i o n s o t h e r
than E or E.
2. Measure the voltage between
the 410 and A13 or 426 termi
nals.
C h e c k f o r 3 h o r t i n t h e w i r e
between the A10 tetminal and
the A/T gear position indicator,
or a short in the wir63 between
the A/T gear position indicator
and A/T g€ar position switch. lf
wires are oK, check for loose
TCM connecto13. lf necessarv,
3ubslitute a known-good TCM
and recheck.
C h e c k f o r 3 h o r t i n t h e w i r e
between the Ag terminal and tho
A/T gear po3ition switch. lf wire
is OK, check tor loose TCM con-
neclors. ll necessary, substitute a
known-good TCM and recheck.
To page 14 63
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Troubleshooting
