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Electrical Troubleshootin g
Troubleshooting Flowchart - LC Control System
\ . r .
Poeribl. C.ua.
control
NOTE: Do not continue with this troubleshooting
ot any other DTCS have beeo corrected.
until thg caus€s
v
t,
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14-80
Chock lor Anothor Cod6:
Check whether the OBD ll
tool indicates another codo.
P6rform tha Troublorhooting
Flowcha
for tho indicrlad
Codolsl.
R.ch.ck fof codo P0740 !ft.t
t.oublo3hooting.
Does the OBD ll scan tool indi-
cate another code?
Tost Line Proisurg:
Measure the line pressure (see
pag6 14-98).
R.prir tho hydraulic syltcm !!
n.cGsary (soc pago 1+98).
ls the line prsssure within the
servic€ limit?
R e p l ! c 6 t h 6 L o c k - u p C o n t r o l
Solenoid Velva As3ambly .nd
Rschock:
1 . R e p l a c e t h e l o c k - u p c o n t r o l
solenoid valve y'y'B assembly
(see page '!4-87).
2. Turn the ignition switch OFF
and reset the TCM memory
b y r e m o v i n g t h e B A C K U P
fuse in the und€r-hood fuse/
r o l a y b o x t o r m o r e t h a n 1 0
seconos.
3 . U s i n g t h e O B D l l s c a n t o o l ,
check that the engine coolant
temperatures is 176'F (80'C)
4. Drive the vehicle at 55 mph
(88 km/h) constantly lor rnore
than one mrnute,
5. Recheck for code P0740.
Does the OBD ll scan tool indi-
cate codo P0740?
Tha iy3t6m ir OK .t thi! timc.
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Table of Contents
Troubleshooting
