Symptom:
SHIFT PRESSURE SOLENOID CIRCUIT
Wh e n Mo n i to re d a n d S e t Co n d it i o n :
SHIFT PRESSURE SOLENOID CIRCUIT
Wh en Mon itor ed: Wh en t h e solenoid is off, solen oid a ct ive wit h 25-75% du t y cycle an d/or
th e solen oid su pply is a ct ive
Set Con dit ion : If t h e TCM det ect s a sh or t t o gr oun d or ba t ter y on t he solen oid con tr ol
cir cuit , sh or t ed solen oid, open solen oid, or a n open or sh or ted solen oid con t rol circu it dr iver
in the TC M.
POSSIBLE CAUSES
IN TE RMITTE NT WIRING AND CONNECTORS
SHIFT PRESSURE SOLENOID CONTROL CIRCUIT OPEN
SHIFT PRESSURE SOLENOID CONTROL CIRCUIT SH ORT TO GROUND
SHIFT PRESSURE SOLENOID CONTROL CIRCUIT SH ORT TO OTHE R CIRCUITS
SH IF T P RESSURE SOLE NOID ASSE MBLY
TCM - SH IF T P RE S SU RE SOLE N OID CI RCUI T
TE S T ACTION AP PLICAB ILITY
1 NOTE: Low fluid level can be the cause of many transmission problems. If
the fluid level is low locate and repair the leak then check and adjust the
flui d lev el p er t h e s e r vi c e i n fo r m a ti o n .
NOTE: Always perform diagnostics with a fully charged battery to avoid
fa ls e s y m p t o m s .
Wit h t h e DRBIII#, r ea d t h e en gin e DTCs. Ch eck a n d r epa ir all en gin e DTCs pr ior to
per for m in g t r a n sm ission sympt om dia gnost ics.
Wit h th e DRBIII#, r ea d a n d recor d a ll Tra n sm ission DTCs.
NOTE: Ch e c k c o n n e c to rs - Cle a n /re pa i r a s n e c e s s a ry. P o o r p in to te rm in a l
connections can set DTCs.
Usin g t h e wir in g dia gr a m /schem a t ic a s a gu ide, in spect t he wir in g a n d con n ect or s.
Repa ir a s n ecessa r y.
Most DTCs set on st a r t up bu t som e m u st be set by dr iving th e veh icle su ch t h a t a ll
dia gnost ic m on itor s h a ve r u n .
Note: Verify flash level of transmission controller. Some problems are
corrected by software upgrades to the transmission controller.
NOTE: Ch e c k fo r a n y Te ch n ic a l S e rv ic e B u lle t in s th at m a y ap p ly.
Per for m t h is pr ocedu r e pr ior to Sym pt om dia gn osis.
All
Con t in u e
Go To 2
99
TRANSMISSION - NAG1