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Home >> Subaru >> 2009 >> Outback Limited >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission 4AT (Diagnostics) >> Transmission Control Module (TCM) I/O Signal >> Electrical Specification

Electrical Specification

Fig 1: Identifying Transmission Control Module Connector Terminal
G05341957Courtesy of SUBARU OF AMERICA, INC.
RESISTANCE REFERENCE

Check with ignition switch ON.
Contents Measured terminal (Connector & Terminal No.) Measuring condition Voltage (V) Resistance (Ω)
Positive terminal Ground terminal
Backup power supply (B55) No. 27 Chassis ground - 10-13 -
(B55) No. 26 Chassis ground
(B55) No. 25 Chassis ground
ACC power supply (B55) No. 12 Chassis ground Ignition Switch ACC 10 - 13 -
Ignition power supply (B55) No. 1 Chassis ground Ignition Switch ON 10 - 13 -
(B55) No. 2 Chassis ground
Inhibitor switch "P" range switch (B54) No. 14 Chassis ground Select lever "P" range Less than 1 -
Select lever Except "P" range 8 or more -
"N" range switch (B54) No. 11 Chassis ground Select lever "N" range Less than 1 -
Select lever Except "N" range 8 or more -
"R" range switch (B54) No. 13 Chassis ground Select lever "R" range Less than 1 -
Select lever Except "R" range 8 or more -
"D" range switch (B54) No. 10 Chassis ground Select lever "D" range Less than 1 -
Select lever Except "D" range 8 or more -
ATF temperature sensor (B54) No. 23 (B54) No. 12 ATF temperature 20°C (68°F) 3.5 - 4.3 2.5k - 7.0 k
ATF temperature 80°C (176°F) 1.0 - 2.2 300 - 800
ATF temperature sensor ground (B54) No. 12 Chassis ground - 0 Less than 1 (When inserting connector) ∞ (When disconnecting connector)
Rear vehicle speed sensor (B54) No. 26 (B54) No. 15 20 km/h (12 MPH) Vehicle speed at least 2 or more (AC range) -
Rear vehicle speed sensor ground (B54) No. 15 Chassis ground - 0 Less than 1 (When inserting connector) ∞ (When disconnecting connector)
Front vehicle speed sensor (B54) No. 27 (B54) No. 16 - - 450 - 650
Front vehicle speed sensor ground (B54) No. 16 Chassis ground - - -
Torque converter turbine speed sensor (B54) No. 1 (B54) No. 2 Engine idling after warm up ("D" range) 0 450 - 650
Engine idling after warm up ("N" range) 1 or more (AC range)
Torque converter turbine speed sensor ground (B54) No. 2 Chassis ground - - -
Engine speed signal (B55) No. 11 Chassis ground Ignition switch ON (engine OFF) Less than 1 -
Engine start 5 or more (AC range) -
Line pressure linear solenoid (B54) No. 4 (B54) No. 3 Ignition switch ON (with engine OFF) Throttle fully closed in "R" range after warm up. 3.7 - 7.7 4.0 - 6.0
Ignition switch ON (with engine OFF) Throttle fully closed in "R" range after warm up. 1.1 - 5.1
Line pressure linear solenoid ground (B54) No. 3 Chassis ground - Less than 1 Less than 1
Lock up duty solenoid (B54) No. 6 Chassis ground When lock up occurs. 10.5 or more 2.0 - 4.5
When lock up is released. Less than 1
Transfer duty solenoid (B54) No. 5 Chassis ground With fuse installed to FWD switch Less than 1 2.0 - 4.5
With fuse removed from FWD switch (1st gear) 2.0 - 3.0
2-4 brake duty solenoid (B55) No. 4 Chassis ground "P" or "N" range 5.0 or more 2.0 - 4.5
2nd or 4th gear Less than 1
High clutch duty solenoid (B55) No. 6 Chassis ground 3rd or 4th gear Less than 1 2.0 - 4.5
"P" or "N" range 5.0 or more
Low clutch duty solenoid (B55) No. 7 Chassis ground 1st or 2nd gear Less than 1 2.0 - 4.5
"P" or "N" range 5.0 or more
Low & reverse duty solenoid (B55) No. 5 Chassis ground Except "1" range 5.0 or more 2.0 - 4.5
Driving at 1st gear on manual mode (15 km/h (9.3 MPH) or more) 2.5 - 5.0
Data link signal (Subaru Select Monitor) (B55) No. 8 Chassis ground - - -
CAN communication signal (+) (B54) No. 18 Chassis ground Ignition switch ON Pulse signal -
CAN communication signal (-) (B54) No. 17 Chassis ground Ignition switch ON Pulse signal -
FWD switch (B55) No. 10 Chassis ground Fuse removed 10.5 or more -
Fuse installed 1 or less -
System ground circuit (B55) No. 20 Chassis ground - 0 Less than 1
(B55) No. 21 Chassis ground - 0 Less than 1
(B55) No. 22 Chassis ground - 0 Less than 1
(B55) No. 23 Chassis ground - 0 Less than 1