Honda 2004 Odyssey Service Manual page 642

Electronic Control System
Functional Diagram
The electronic control system consists of the powertrain control module (PCM), sensors, and six solenoid valves.
Shifting and lock-up are electronically controlled for comfortable driving under all conditions. The PCM is located
below the dashboard, under the front lower panel behind the center console.
Throttle Position Sensor
Signal
Engine Coolant Temperature
Sensor Signal
MULTIPLEX
CONTROL UNIT,
DRIVER'S
D4 Indicator
Self-Diagnosis Signal
PCM
PGM-FI
Control System
A/T Control System
P
R
N
Shift Control
D4
D3
2
1
Lock-up Control
Self-Diagnosis
Function
Data Link Connector
Shift Solenoid Valve A
Shift Solenoid Valve B
Shift Solenoid Valve C
Automatic Transaxle Clutch
Pressure Control Solenoid
Valve A
Automatic Transaxle Clutch
Pressure Control Solenoid
Valve B
2nd Clutch Pressure
Switch
3rd Clutch Pressure
Switch
Torque Converter Clutch
Solenoid Valve
Mainshaft Speed Sensor
Signal
Countershaft Speed
Sensor Signal
(cont'd)
14-29