Transmission Control Module (Tcm) I/O Signal - Subaru Legacy 2002 Service Manual

TRANSMISSION CONTROL MODULE (TCM) I/O SIGNAL

Content
VDC communication sig-
nal +
VDC communication sig-
nal –
Kick-down switch
AT OIL TEMP warning
light
Throttle position sensor
Throttle position sensor
power supply
ATF temperature sensor
Rear vehicle speed sensor
Front vehicle speed sen-
sor
Torque converter turbine
speed sensor
Vehicle speed output sig-
nal
Engine speed signal
Cruise set signal
Torque control signal 1
Torque control signal 2
Torque control cut signal
Intake manifold pressure
signal
Shift solenoid 1
Shift solenoid 2
Check with ignition switch ON.
Con-
Termi-
nector Measuring conditions
nal No.
No.
B56 9
Ignition ON
B56 18
Throttle fully opened.
B55 11
Throttle fully closed.
Light ON
B56 10
Light OFF
Throttle fully closed.
B54 3
Throttle fully open.
Ignition switch ON (With
B54 2
engine OFF)
ATF temperature 20°C
B54 11
ATF temperature 80°C
Vehicle stopped.
B55 24
Vehicle speed at least 20
km/h (12 MPH)
Vehicle stopped.
B55 18
Vehicle speed at least 20
km/h (12 MPH)
Engine idling after warm-
up. (D range)
B55 8
Engine idling after warm-
up. (N range)
Vehicle speed at most 10
B56 17
km/h (6 MPH)
Ignition switch ON (with
engine OFF)
B55 17
Ignition switch ON (with
engine ON)
When cruise control is set
(SET lamp ON)
B55 22
When cruise control is not
set (SET lamp OFF)
Ignition switch ON (with
B56 5
engine ON)
Ignition switch ON (with
B56 14
engine ON)
B55 10 Ignition switch ON
Engine idling after warm-
B54 10
1st or 4th gear
B54 22
2nd or 3rd gear
1st or 2nd gear
B54 5
3rd or 4th gear
EN(H6)-33
Voltage (V)
(+) — (–)
Plus signal
(+) — (–)
Plus signal
Less than 1
More than 6.5
Less than 1
More than 9
0.3 — 0.7
4.0 — 4.6
4.8 — 5.3
1.6 — 2.0
(68°F)
0.4 — 0.9
(176°F)
More than 1 (AC range)
More than 1 (AC range)
More than 1 (AC range)
Less than 1←
→More than 4
More than 10.5
Less than 1
More than 6.5
More than 4
More than 4
1.2 — 1.8
up.
More than 9
Less than 1
More than 9
Less than 1
Engine (DIAGNOSTICS)
Resistance to body
(ohms)
2.1 k — 2.9 k
275 — 375
0
450 — 650
0
450 — 650
0
450 — 650
8 — 11
8
10 — 16
10 — 16
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