Honda Odyssey 2004. Manual — part 222
*05
Electronic Control System (cont’d)
Lock-up Control
14-282
Automatic Transmission
System Description (cont’d)
PCM
Engine RPM Signal
Engine Coolant
Temperature
Sensor Signal
Barometric Pressure
Sensor Signal
Transmission Range
Switch Signal
Lock-up condition
learning Control
ATF Temperature
Sensor Signal
A/T Clutch Pressure
Control Solenoid
Valve C
Throttle Position
Sensor Signal
Engine Coolant
Temperature
control
Actual
Driving
Shift
Position
Correction of
ATF temperature
sensor data
Master Target
of Controlling
Current
Current
feedback
Driving shift
position
information
Shifting position
control
Gradient control
by magnitude
Fail-safe control
Lock-up Control
• Lock-up ON/OFF control
• Lock-up condition
control
Input Shaft (Mainshaft)
Speed Sensor Signal
Torque Converter
Clutch Solenoid Valve
Output Shaft (Countershaft)
Speed Sensor Signal
The torque converter clutch solenoid valve controls the hydraulic pressure to switch the lock-up shift valve and lock-up
ON and OFF. The PCM actuates the torque converter clutch solenoid valve and the A/T clutch pressure control
solenoid valve C to control the torque converter clutch lock-up on. When the torque converter clutch solenoid valve is
ON, the condition of the lock-up starts. The A/T clutch pressure control solenoid valve C regulates and applies the
hydraulic pressure to the lock-up control valve to control the amount of the lock-up.
The lock-up mechanism operates in 3rd, 4th, and 5th gears in the D position, and 3rd gear in the D3 position.
03/07/29 09:37:15 61S0X050_140_0285
*06
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PCM Electrical Connections
14-283
D
A14
D5 IND
IGNITION SWITCH
IG1
BATTERY
PG1
PG2
B2
B10
B1
IGP1
VBU
B21
A5
E17
A10
CRS
ATSFTP
SCS
BRAKE LIGHTS
A32
BK SW
IGP2
B9
ATP 1
D15
ATP 2
D14
ATP D5
D8
ATP R
D6
R
1
2
D3
D5
P
N
A/T GEAR POSITION INDICATOR
2
1
N
R
P
D3
D9
ATP D3
B14
ATP NP
A9
VSS OUT
GAUGE ASSEMBLY
LG1
B20
LG2
B22
D5
VB SOL
ABS/TCS UNIT
ILU
A28
SPEEDOMETER
CIRCUIT
TPS
C27
C18
SG2
C26
ECT
NCSG
D16
VCC1
C19
D10
NC
TATF
C24
LS C
B13
B24
LS C
E (20P)
NMSG
D12
VCC2
C28
B19
OP4SW
OP3SW
D13
LC
D1
LS B
B18
LS A
B8
D11
NM
PCM Connector Terminal Locations
D (16P)
C (31P)
B (25P)
A (32P)
D3
SH C
SH B
D2
PCM
D7
B25
B17
SH A
LS B
LS A
PGM FI
MAIN
RELAY
BRAKE PEDAL
POSITION SWITCH
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE A
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE B
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE C
SHIFT SOLENOID
VALVE A
SHIFT SOLENOID
VALVE B
SHIFT SOLENOID
VALVE C
TORQUE CONVERTER
CLUTCH SOLENOID
VALVE
INPUT SHAFT
(MAINSHAFT)
SPEED
SENSOR
THROTTLE
POSITION
SENSOR
ENGINE COOLANT
TEMPERATURE
SENSOR
ATF
TEMPERATURE
SENSOR
OUTPUT SHAFT
(COUNTERSHAFT)
SPEED
SENSOR
3RD CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH
4TH CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH
TRANSMISSION
RANGE
SWITCH
CRUISE CONTROL
UNIT
DATA LINK
CONNECTOR
MULTIPLEX CONTROL
UNIT (DRIVER’S)
2
(7)
24
13
19
(5) (6)
12
1
22
14
13
12
3
4
23
31
15
6
9
15
6
30
29
21
20
9
19
25
26 27 28
21
20
10
9
7
8
21
32
30
29
28
26
14
6
18
19
14
13
1
12
5
16
12
11
10
8
7
5
3
2
1
18
17
16
10
8
7
5
2
25
24
23
22
17
14
11
8
5
4
3
2
1
27
24
20
18
17
15
10
9
6
4
3
2
1
(16) (17)
(cont’d)
03/07/29 09:37:16 61S0X050_140_0286
21
Electronic Control System (cont’d)
PCM Inputs and Outputs
PCM CONNECTOR A (32P)
Wire
color
Signal
Description
Measuring Conditions/Terminal Voltage
Terminal
Number
14-284
Automatic Transmission
System Description (cont’d)
PCM Connector Terminal Locations
A (32P)
B (25P)
C (31P)
D (16P)
E (20P)
The PCM terminal voltage and measuring conditions for the A/T control system are shown.
A5
BLU/GRN
CRS
Downshift signal input from
cruise control unit
When cruise control is used: About 1 V
A9
BLU/WHT
VSS
OUT
Vehicle speed signal detected
from output shaft (countershaft)
speed sensor, and sent to
speedometer and odometer
Depending on vehicle speed: Pulsing signal
A10
BRN
SCS
Detects service check signal
With ignition switch ON (II) and data link
connector open: 5 V
With ignition switch ON (II) and data link
connector connected with HDS
in SCS mode: 0 V
A14
GRN/BLK
D IND
D indicator control
When ignition switch is first turned ON (II):
About 7 V for 2 seconds
In the D position: About 7 V
A28
WHT/RED
ILU
Interlock control
With ignition switch ON (II), brake pedal
pressed, and accelerator pedal released:
Battery voltage
A32
WHT/BLK
BK SW
Brake pedal position switch
signal input
Brake pedal pressed: Battery voltage
Brake pedal released: 0 V
03/07/29 09:37:17 61S0X050_140_0287
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PCM CONNECTOR B (25P)
Wire
color
Signal
Description
Measuring Conditions/Terminal Voltage
PCM CONNECTOR C (31P)
Wire
color
Signal
Description
Measuring Conditions/Terminal Voltage
Terminal
Number
Terminal
Number
14-285
B1
YEL/BLK
IGP1
Power supply circuit from main
relay
With ignition switch ON (II): Battery voltage
With ignition switch OFF: 0 V
B2
BLK
PG1
Ground
Less than 1.0 V at all times
B8
WHT
LS A
A/T clutch pressure control
solenoid valve A power supply
negative electrode
B9
YEL/BLK
IGP2
Power supply circuit from main
relay
With ignition switch ON (II): Battery voltage
With ignition switch OFF: 0 V
B10
BLK
PG2
Ground
Less than 1.0 V at all times
B13
GRN/RED
LS C
A/T clutch pressure control
solenoid valve C power supply
positive electrode
With ignition switch ON (II): Pulsing signal
B14
BLU/WHT
ATP NP
Transmission range switch P
and N positions input
In the P and N positions: 0 V
In other than the P and N position: Battery
voltage
B17
RED
LS A
A/T clutch pressure control
solenoid valve A power supply
positive electrode
With ignition switch ON (II): Pulsing signal
B18
GRN
LS B
A/T clutch pressure control
solenoid valve B power supply
negative electrode
B19
BLU/YEL
AT
OP4SW
A/T 4th clutch transmission
fluid pressure switch signal
input
With ignition switch ON (II): Battery voltage
(No 4th clutch pressure)
With 4th clutch pressure: About 0 V
B20
BRN/YEL
LG1
Ground
Less than 1.0 V at all times
B21
WHT/RED
VBU
Back-up power supply
Always battery voltage
B22
BRN/YEL
LG2
Ground
Less than 1.0 V at all times
B24
RED/BLU
LS C
A/T clutch pressure control
solenoid valve C power supply
negative electrode
B25
BRN/WHT
LS B
A/T clutch pressure control
solenoid valve B power supply
positive electrode
With ignition switch ON (II): Pulsing signal
C18
GRN/YEL
SG2
Sensor ground
Less than 1.0 V at all times
C19
YEL/RED
VCC1
Power supply for sensors
With ignition switch ON (II): 5 V
With ignition switch OFF: 0 V
C24
BLU/YEL
ATFT
ATF temperature sensor signal
input
With ignition switch ON (II): About 0.5
4.5 V
With ignition switch OFF: 0 V
C28
YEL/BLU
VCC2
Power supply for sensors
With ignition switch ON (II): 5 V
With ignition switch OFF: 0 V
(cont’d)
03/07/29 09:37:17 61S0X050_140_0288
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