Subaru LEGACY 2006 Manual page 3408

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Transmission Control Module (TCM) I/O Signal
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Contents
ATF temperature sensor
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
Engine speed signal
Line pressure linear solenoid
Line pressure linear solenoid
ground
Lock-up duty solenoid
Check with ignition switch ON.
Measured terminal
(Connector & Terminal No.)
Positive terminal Ground terminal
(B54) No.21 (B54) No.9
(B54) No.9 Chassis ground
(B54) No.24 (B54) No.23
(B54) No.23 Chassis ground
(B54) No.6 (B54) No.15
(B54) No.15 Chassis ground
(B54) No.7 (B54) No.16
(B54) No.16 Chassis ground
(B54) No.13 Chassis ground
(B55) No.20 (B55) No.19
(B55) No.19 Chassis ground
(B55) No.5 Chassis ground
4AT(diag)-12
Measuring
Voltage (V)
condition
ATF temperature
20°C 3.5 — 4.3
(68°F)
ATF temperature
80°C 1.0 — 2.2
(176°F)
— 0
20 km/h
(12 MPH) More than 2
Vehicle speed at (AC range)
least
— 0
— —
Engine idling after
warm-up ("D" 0
range)
Engine idling after
More than 1
warm-up ("N"
(AC range)
range)
— —
Ignition switch ON
Less than 1
(engine OFF)
Ignition switch ON More than 5
(with engine ON) (AC range)
Ignition switch ON
(with engine OFF)
Throttle fully closed 3.7 — 7.7
in "R" range after
warm-up.
Ignition switch ON
(with engine OFF)
Throttle fully closed 1.1 — 5.1
in "R" range after
warm-up.
— Less than 1
When lock up
10.5 or more
occurs.
When lock up is
Less than 1
released.
Resistance (Ω)
2.5k — 7.0 k
300 — 800
Less than 1
(When inserting
connector)
(When discon-
necting connec-
tor)
—
Less than 1
(When inserting
connector)
(When discon-
necting connec-
tor)
450 — 650
—
450 — 650
—
—
—
4.0 — 6.0
Less than 1
2.0 — 4.5