Subaru IMPREZA GD 2007 Series Manual page 2651

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Transmission Control Module (TCM) I/O Signal
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Item
Brake switch
ATF temperature warning light
ATF temperature sensor
Rear vehicle speed sensor
Front vehicle speed sensor
Torque converter turbine speed
sensor
Vehicle speed output signal
Engine speed signal
Line pressure linear
solenoid
Lockup duty solenoid valve
Transfer duty solenoid valve
2-4 brake duty solenoid valve
High clutch duty solenoid
Low clutch duty solenoid
Low & reverse duty
solenoid
Front vehicle speed sensor
ground
Rear vehicle speed sensor
ground
System ground circuit
Check with ignition switch ON.
Connector Terminal
Measuring condition
No. No.
When brake pedal is
depressed.
B55 20
When brake pedal is released.
When light is ON
B54 15
When light is OFF
ATF temperature 20°C (68°F)
B55 23
ATF temperature 80°C (176°F)
Vehicle speed at least 20 km/h
B55 26
(12 MPH)
Vehicle stopped
B55 27
Vehicle speed at least 20 km/h
(12 MPH)
Engine idling after warm-up
("D" range)
B55 1
Engine idling after warm-up
("N" range)
Vehicle speed at least 10 km/h
B55 21
Ignition switch ON
(engine OFF)
B54 11
Ignition switch ON
(engine ON)
Ignition switch ON
(engine OFF)
"R" range throttle fully closed
after engine warm-up.
B55 4
Ignition switch ON
(engine OFF)
"R" range throttle fully open
after engine warm-up.
When lock up occurs.
B55 6
When lock up is released.
"P" or "N" range
B55 5
Select lever is in 1st gear
"P" or "N" range
B54 4
2nd or 4th gear
3rd or 4th gear
B54 6
"P" or "N" range
1st or 2nd gear
B54 7
"P" or "N" range
"P" or "N" range
B54 5
"1" range
B55 16
B55 15
B54 23
B54 20
B54 21
B54 22
4AT(D)(diag)-12
Voltage (V)
10.5 or more
Less than 1
Less than 1
9 or more
3.5 — 4.3
1.5 — 1.9
2 or more (AC range)
0
1 or more (AC range)
0
1 or more (AC range)
Less than 1 ← →4 or
(6 MPH) more
Less than 1
5 or more (AC range)
3.7 — 7.5
1.0 — 5.1
10.5 or more
Less than 1
Less than 1
1.7 — 4.0
10.5 or more
Less than 1
Less than 1
10.5 or more
Less than 1
10.5 or more
10.5 or more
5 — 10
— 0
— 0
— 0
Resistance to
the chassis
ground (Ω)
—
—
2.3 k — 5.3 k
300 — 800
—
450 — 650
450 — 650
—
—
4.0 — 8.0
2.0 — 6.0
2.0 — 6.0
2.0 — 6.0
2.0 — 6.0
2.0 — 6.0
2.0 — 6.0
Less than 1
Less than 1
Less than 1