Acura RSX Honda Integra. Manual — part 228

０７

5th Gear

14-37

TORQUE
CONVERTER

MAINSHAFT

COUNTERSHAFT

MAINSHAFT
5TH GEAR

FINAL DRIVE
GEAR

5TH CLUTCH

FINAL DRIVEN GEAR

COUNTERSHAFT
5TH GEAR

• Hydraulic pressure is applied to the 5th clutch, then the 5th clutch engages the mainshaft 5th gear with the

mainshaft.

• The mainshaft 5th gear drives the countershaft 5th gear and the countershaft.
• Power is transmitted to the final drive gear, which in turn drives the final driven gear.

(cont’d)

05/06/27 17:48:41 61S6M040_140_0038

０８

Power Flow (cont’d)

R Position

14-38

Automatic Transmission

System Description (cont’d)

TORQUE
CONVERTER

COUNTERSHAFT

REVERSE
IDLER GEAR

FINAL DRIVE
GEAR

COUNTERSHAFT
REVERSE GEAR

REVERSE SELECTOR

MAINSHAFT

4TH CLUTCH

REVERSE SELECTOR HUB

FINAL DRIVEN GEAR

MAINSHAFT
REVERSE GEAR

• Hydraulic pressure is applied to the servo valve to engage the reverse selector with the countershaft reverse gear

and reverse selector hub while the shift lever is in the R position.

• Hydraulic pressure is also applied to the 4th clutch, then the 4th clutch engages the mainshaft reverse gear with the

mainshaft.

• The mainshaft reverse gear drives the countershaft reverse gear via the reverse idler gear.
• The rotational direction of the countershaft reverse gear is changed by the reverse idler gear.
• The countershaft reverse gear drives the countershaft via the reverse selector, which drives the reverse selector hub.
• Power is transmitted to the final drive gear, which in turn drives the final driven gear.

05/06/27 17:48:42 61S6M040_140_0039

０６

Ｓ６Ｍ６Ａ０２Ｅ１０４１０６０００００ＣＡＡＴ０３

Electronic Control System

Functional Diagram

14-39

PCM

Engine RPM Signal

Throttle Position
Sensor Signal

Engine Coolant
Temperature Sensor Signal

Barometric Pressure
Sensor Signal

Manifold Absolute
Pressure Sensor Signal

Transmission
Range
Switch
Signal

Input Shaft (Mainshaft)
Speed Sensor Signal

Output Shaft (Countershaft)
Speed Sensor Signal

Brake Pedal Position
Switch Signal

PGM-FI Control
System

A/T Control System

Shift Control

Grade Logic Control
• Ascending control

Descending control

•

Clutch Pressure
Control

Lock-up Control

Gauge Assembly
A/T Gear Position Indicator
Sequential Sportshift Mode
Position Shift Indicator

Shift Solenoid Valve A

Shift Solenoid Valve B

A/T Clutch Pressure
Control Solenoid Valve A

A/T Clutch Pressure
Control Solenoid Valve B

Vehicle Speed Signal
Data Link Connector

Shift Lock Solenoid

Automatic
5-speed and
Reverse

Lock-up
Conditions

Lock-up
ON/OFF

Service Check Signal

ATF Temperature
Sensor Signal

Transmission Gear
Selection Switch Signal

Self-diagnosis/
Fail-safe Function
Communication and
Output Function

Shift Lock Control
Reverse Lock Control

Shift Solenoid Valve C

A/T Clutch Pressure
Control Solenoid Valve C

Shift Solenoid Valve D

Shift Solenoid Valve E

Multiplex

Cruise Control Unit
Downshift Request Signal

2nd Clutch Transmission Fluid
Pressure Switch Signal

3rd Clutch Transmission Fluid
Pressure Switch Signal

The electronic control system consists of the powertrain control module (PCM), sensors, and solenoid valves.
Shifting and lock-up are electronically controlled for comfortable driving under all conditions.

The PCM receives input signals from the sensors, switches, and other control units, processes data, and outputs
signals for the engine control system and A/T control system. The A/T control system includes shift control, grade
logic control, clutch pressure control, and lock-up control.
The PCM switches the shift solenoid valves and the A/T clutch pressure control solenoid valves to control shifting
transmission gears and lock-up torque converter clutch.

(cont’d)

05/06/27 17:48:42 61S6M040_140_0040

０３

０１

Electronic Control System (cont’d)

Electronic Controls Location

14-40

Automatic Transmission

System Description (cont’d)

SHIFT LOCK SOLENOID

POWERTRAIN CONTROL
MODULE (PCM)

DATA LINK CONNECTOR (DLC)

PARK PIN SWITCH

TRANSMISSION GEAR
SELECTION SWITCH

No. 11 CONNECTOR (6P)

UNDER-DASH
FUSE/RELAY
BOX

OUTPUT SHAFT (COUNTERSHAFT)
SPEED SENSOR

TRANSMISSION RANGE SWITCH

2ND CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH

INPUT SHAFT (MAINSHAFT)
SPEED SENSOR

A/T CLUTCH PRESSURE
CONTROL SOLENOID VALVE C

3RD CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH

ATF TEMPERATURE SENSOR
(BUILT INTO THE CONNECTOR)

SHIFT SOLENOID
VALVE C

A/T CLUTCH PRESSURE
CONTROL SOLENOID VALVE B

A/T CLUTCH PRESSURE
CONTROL SOLENOID VALVE A

SHIFT SOLENOID
VALVE B

SHIFT SOLENOID
VALVE A

SHIFT SOLENOID
VALVE E

SHIFT SOLENOID
VALVE D

05/06/27 17:48:42 61S6M040_140_0041