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S y m p to m :
P 0731-GEAR RATIO ERROR IN 1S T
Wh e n Mo n ito re d a n d S e t Co n d itio n :
P 0731-GEAR RATIO ERROR IN 1S T
Wh en Mon it or ed: Th e Tr a n sm ission gea r r a t io is m on it or ed con t in u ou sly wh ile t h e
t r a n sm ission is in gea r.
Set Con dit ion : If t h e r a t io of t h e In pu t RP M t o t h e Ou t pu t RP M does n ot m a t ch t h e
cu r r en t gea r r a t io.
P OS S IB LE CAU S ES
RE LATE D DTC’S P RE SE NT
INTE RNAL TRANSMISSION
INTE RMITTE NT GE AR RATIO E RRORS
TES T ACTION AP P LICAB ILITY
1 N OTE: Lo w flu id le v e l c a n be th e c a u s e o f m a n y tra n s m is s io n p ro ble m s . If
th e flu id le v e l is lo w lo c a te a n d re p a ir th e le a k th e n c h e c k a n d a d ju s t th e
flu id le v e l p e r th e S e rv ic e In fo rm a tio n .
N OTE: Alw a y s p e rfo rm d ia g n o s tic s w ith a fu lly c h a rg e d ba tte ry to a v o id
fa ls e s y m p to m s .
Wit h t h e DRBIII # , r ea d E n gin e DTC’s. Ch eck a n d r epa ir a ll E n gin e DTC’s pr ior t o
per for m in g a n y t r a n sm ission sym pt om dia gn ost ics.
Wit h t h e DRBIII
# , r ea d Tr a n sm ission DTC’s. Recor d a ll DTC’s a n d 1 Tr ip F a ilu r es.
N OTE: D ia g n o s e 1 Trip F a ilu re s a s a fu lly m a tu re d D TC.
Usin g t h e wir in g dia gr a m /sch em a t ic a s a gu ide, in spect t h e wir in g a n d con n ect or s.
Repa ir a s n ecessa r y.
P er for m t h e Sh ift Lever P osit ion Test . If t h e t est does n ot pa ss, r efer t o Sym pt om t est
for P 0706 Ch eck Sh ift er Sign a l.
F or Gea r Ra t io DTC’s, ch eck a n d r ecor d a ll CVI’s.
Most DTC’s set on st a r t u p bu t som e m u st be set by dr ivin g t h e veh icle su ch t h a t a ll
dia gn ost ic m on it or s h a ve r u n .
N OTE: Ve rify fla s h le v e l o f P o w e rtra in Co n tro l Mo d u le . S o m e p ro ble m s a re
c o rre c te d by s o ftw a re u p g ra d e s to th e Tra n s m is s io n a n d En g in e s o ftw a re .
N OTE: Ch e c k fo r a p p lic a ble TS B ’s re la te d to th e p ro ble m .
P er for m t h is pr ocedu r e pr ior t o Sym pt om dia gn osis.
All
Con t in u e
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T RAN SM I SSI ON - N GC