Honda Civic Service Manual page 882

Electronic Control System ('96 - 98 Modelsl
The electronic control system consists of the Transmission control Module
(TcM), sensors, three linear solenoids, and an
inhibitor solenoid. Shifting is electronically controlled under all conditions
The TCIM is located below the dashboard, behind the kick panel on the driver's side'
The TcN4 controls the transmission to reduce engine speed and retain the engine's cooling efficiency
when the vehicle is
driven with Iull throttle acceleration
l f t h e v e h i c l e i s c o n t i n u o u s l y d r i v e n a t f u l l t h r o t t l e a c c e l e r a t i o n , t h e T C M r e g u l a t e s t h e
p u l l e y h y d r a u l i c p r e s s u r e t o
increase the pulley ratio, which, as the result. reduces the engine speed and retains the designed cooling
efficiency After
the vehicle has been driven at a lower engine speed for a while, the TCM increases the
pulley ratio to the original ratio.
For smooth starting in the E position, the TcM sends a signal to the EcM to cut off the rvc clutch {if
the A!/c is on) and
increases the engine speed to 900 rpm when the transmission is shifted to the E position'
The start clutch functions to make smooth starting possible. To let the start clutch function
properly. the TCM regulates
the start clutch hydraulic pressure based on the entine's negative pressure memorized in the E
position'
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S*ond.ry G..r Sh:ft
(cont'd)
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