Acura 3.5 RL Manual page 483

Electronic Control System
The electronic control system consists of a Powertrain Control Module (PCM), sensors, a A/T clutch pressure control
solenoid and four solenoid valves. Shifting and lock-up are electronically controlled for comfortable driving under all con-
ditions. The PCM is located below the dashboard, under the front lower panel on the passenger's side.
Throttle Position Sensor
Signal
Engine Coolant Temperature
Sensor Signal
Interlock System
Indicator Light
Self-Diagnosis Signal
PCM
PGM-FI
Control System
Shift Control
Lock-up Control
A/T Control System
Self-Diagnosis
Function
Vehicle Speed Sensor
Signal
Service Check Connector
Shift Solenoid
Valve A
Shift Solenoid
Valve B
A/T Clutch Pressure Control
Solenoid Valve
Torque Converter Clutch
(Lock-up Control)
Solenoid Valve A
Torque Converter Clutch
(Lock-up Control)
Solenoid Valve B
Mainshaft Speed Sensor
Signal
Countershaft Speed
Sensor Signal