Acura 1994 Integra Service Manual page 433

Description
LOCX UP CONTROL
Lock-up System (cont'dl
Halt Lock-up
Lock up Control Solenoid Valve A: ON
Lock-up Control Solenoid Valve B: ON
The modulator pressure is released by the solenoid valve B, causing the modulator pressure in the lett cavity of the lock-
uD control valve to lower.
Also the modulator pressure in the left cavity of the lock-up timing B valve is low. However the throttle B pressure is
still low at this time; consequently. the lock-up timing B valve is kept on the right side by the spring force.
With the lock-up control solenoid valve B turned on, the lock-up cont.ol valve is moved somewhat to the Ieft side. caus
ing the back pressure (F2) to lower. This allows a greater amount of the fluid (F'1) to work on the lock,up clutch so as
to engage the clutch. The back pressure (F2) which still exists prevents the clutch from engaging tully
NOTE: When used, "left" or "right" indicates direction on the flowcnarr.
r.oct( uP corlTRol
sorENoto vatvE a
<-_ MOOULATOR PRESSTJBE
LOCK UP IIMiI{G B VAI-VE
orr coorER
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