Subaru Legacy 2004 Service Manual page 2474

Transmission Control Module (TCM) I/O Signal
Item
Range lock solenoid out-
put
Inhibitor switch 3 input
Inhibitor switch 4 input
Control valve communi-
cation line
Back-up light relay out-
put
Ignition power supply
AWD solenoid output
Turbine speed sensor 2
input
Control GND
Inhibitor switch 3 open
circuit monitor input
PN signal output
Ter-
Connector min
Measuring conditions
No. al
No.
Ignition switch ON, While
stopping at "D" range
B55 15
Ignition switch ON, Vehicle
speed at least 20 km/h (12
MPH)
Ignition switch ON, "R"
range
B55 14
Ignition switch ON, "D"
range
Ignition switch ON, "P"
range
B55 13
Ignition switch ON, "D"
range
B55 12
Ignition switch ON, "R"
range
B55 11
Ignition switch ON, Other
than "R" range
Ignition switch ON
B55 10
Ignition switch OFF
Engine ON, "P" range or
"N" range, Accelerator
OFF
B55 23
Engine ON, "D" range,
Accelerator OFF, Brake
ON
2nd of manual mode, Tur-
bine speed sensor is
2,000 rpm (Read from
Subaru Select Monitor)
B55 22
4th of manual mode, Tur-
bine speed sensor is
2,000 rpm (Read from
Subaru Select Monitor)
B55 21 Always
Ignition switch ON, "D"
range
B55 20
Ignition switch ON, "R"
range
Ignition switch ON, Other
than "P" range or "N"
range
B55 19
Ignition switch ON, "P"
range or "N" range
5AT(diag)-15
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Voltage (V)
About Power
Supply Voltage
$ 1.2 V
Approx. 0 V
4.0 — 5.0 V
1.5 V or less
4.0 — 5.0 V
1.5 V or less
— —
1.5 V
Power supply
voltage
Power supply
voltage
Approx. 0 V
Approx. 0 V
Approx. 2.0 —
3.0 V
Approx. 1,300
— 1,500 Hz
Approx. 1,900
— 2,100 Hz
Approx. 0 V
4.0 — 5.0 V
Less than 1.5 V
Power supply
voltage
0 — 1.0 V
Measure the
resistance
between termi- Remarks
nal and chassis
ground.
7 — 21 "
—
—
—
Approx. 90 —
110 " (ATF tem-
perature 25#C
(77#F))
—
3 — 9 " (ATF
Driving fre-
temperature quency 750 —
20#C (68#F)) 850 Hz
Use an oscillo-
scope.
Use an oscillo-
—
scope.
—
—
ECM should
— connected cor-
rectly
—