Honda Civic Service Manual page 899

Description
Hydraulic Flow (cont'd)
lll position, when th€ electronic control system is fauhy.
when the electronic control svstem (linear solenoids and sensors) is faulty,
the transmission uses the pitot pipe pressure
(PP) to 311o- rh" u"hicle to drive.
when all linear solenoids and sensors are off because of a faulty electronrc
control system, clutch reducing pressure (cR)
flows to the start clutch control valve, the manual valve, the PH-PL control
valve, and the shift control valve. clutch reduc-
ing pressure (cR) becomes shift varve pressure (sV) at the shift contror
varve, and shift varve pressure {sv) is appried to
the left end of the shift valve and the right end of the shift inhibitor valve.
The shift valve moves to the right side. and
uncovers the pon that leads high pressure (PH) to the drive pulley and
uncovers the po.t tlr"t r""1" ro,,"-pressure (pL) to
the driven pulley At this time, the pulley ratio is high, The shift inhibitor valve
moves to the left side, and uncovers the
port that leads shift inhibitor pressure (Sll to the pitot lubrication pipe
and the pitot regulator valve. tne prtot lubrication
pipe discharges fluid inside of the pitot flange, and discharged
fluid enters into the pitot pipe and it is applied to the left
end of the pitot regulator valve. The pitot regulator valve moves lo the
right side, and uncovers the port that leads pitot
regulator pressure (PR) to the shift inhibitor valve. Pitot regulator pressure
{pR) becomes start clutch pressure {sc1 at the
shift inhibitor valve, and is applied to the stan clutch. The stan clutch
rs engaged. The forward clutch pressure (FWD) is
applied to the forward crutch, and the forward crutch is engaged. This alows
the vehicre to drive.
NOTE: When used. "|eft" or ,,right', indicates direction on the hydraulic
circuit.
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