Subaru 2009 IMPREZA Service Manual page 1998

Transmission Control Module (TCM) I/O Signal
Item
ATF temperature sensor
ground
Rear vehicle speed sensor
Rear vehicle speed sensor
ground
Front vehicle speed sensor
Front vehicle speed sensor
ground
Torque converter turbine
speed sensor
Torque converter turbine
speed sensor ground
Line pressure linear solenoid
Line pressure linear solenoid
ground
Lock-up duty solenoid
Transfer duty solenoid
2-4 brake duty solenoid
High clutch duty solenoid
Low clutch duty solenoid
Check with ignition switch ON.
Measured terminal
(Connector & Terminal No.)
Positive terminal Ground terminal
(B55) No. 12 Chassis ground
(B55) No. 26 (B55) No. 15
(B55) No. 15 Chassis ground
(B55) No. 27 (B55) No. 16
(B55) No. 16 Chassis ground
(B55) No. 1 (B55) No. 2
(B55) No. 2 Chassis ground
(B55) No. 4 (B55) No. 3
(B55) No. 3 Chassis ground
(B55) No. 6 Chassis ground
(B55) No. 5 Chassis ground
(B54) No. 4 Chassis ground
(B54) No. 6 Chassis ground
(B54) No. 7 Chassis ground
4AT(diag)-13
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Measuring condition Voltage (V)
—
20 km/h (12 MPH)
2 or more
Vehicle speed at
(AC range)
least
—
—
—
Engine idling after
warm up
("D" range)
Engine idling after
1 or more
warm up
(AC range)
("N" range)
—
Ignition switch ON,
throttle fully closed
3.7 — 7.7
in R range after
warm up.
Ignition switch ON,
throttle fully open in
1.1 — 5.1
R range after warm
up.
— Less than 1
When lock up
10.5 or more
occurs.
When lock up is
Less than 1
released.
With fuse installed to
Less than 1
FWD switch
With fuse removed
from FWD switch 2.0 — 3.0
(1st gear)
"P" or "N" range 5.0 or more
2nd or 4th gear Less than 1
3rd or 4th gear Less than 1
"P" or "N" range 5.0 or more
1st or 2nd gear Less than 1
"P" or "N" range 5.0 or more
Resistance ( )
Less than 1 (When
inserting connector)
0 (When
disconnecting
connector)
—
Less than 1 (When
inserting connector)
0 (When
disconnecting
connector)
— 450 — 650
— —
0
450 — 650
— —
4.0 — 6.0
Less than 1
2.0 — 4.5
2.0 — 4.5
2.0 — 4.5
2.0 — 4.5
2.0 — 4.5