Subaru 2003 LEGACY Service Manual page 18

TRANSMISSION CONTROL MODULE (TCM) I/O SIGNAL
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Content
Transfer duty solenoid
(VDC system or sport shift
equipped vehicle)
2-4 brake duty solenoid
2-4 brake timing solenoid
Low clutch timing solenoid
Hold switch
Power switch
Power indicator light
FWD switch
(Without VDC system and
SPORT shift)
FWD indicator light
(Without VDC system and
SPORT shift)
ABS signal
(Without VDC system and
SPORT shift)
Sensor ground line 1
Sensor ground line 2
System ground line
Sensor ground line 3
Sensor ground line 4
AT diagnosis signal
(Waveform)
Data link signal
(Subaru Select Monitor)
SPORT shift solenoid
(with SPORT shift)
SPORT shift mode switch
(with SPORT shift)
Shift up switch
(with SPORT shift)
Shift down switch
(with SPORT shift)
Buzzer (with SPORT shift)
SPORT shift indicator
(with SPORT shift)
SPORT shift indicator
(with SPORT shift)
Check with ignition switch ON.
Connector Terminal
No. No.
B54 6
B54 18
B54 16
B54 15
B55 16
B55 23
B56 11
B55 20
B56 2
B55 21
B54 20
B55 9
B56 19
B54 21
B54 10
B54 19
B56 21
B56 15
B54 14
B55 15
B55 13
B55 12
B56 21
B56 12
B56 13
Measuring conditions
Wide open throttle condition
Wide open throttle condition
Throttle fully closed (with engine
OFF) after warm-up.
Throttle fully open (with engine OFF)
after warm-up.
1st gear
3rd gear
2nd gear
4th gear
Hold switch ON
Hold switch OFF
Power switch ON
Power switch OFF
Light ON
Light OFF
Fuse removed
Fuse installed
Fused ON FWD switch
Fuse removed from FWD switch
ABS switch ON
ABS switch OFF
—
—
—
—
—
Ignition switch ON
—
SPORT shift activated
SPORT shift deactivated
SPORT shift mode switch ON
SPORT shift mode switch OFF
Shift up switch ON
Shift up switch OFF
Shift down switch ON
Shift down switch OFF
ON
OFF
SPORT shift mode OFF
Shift down indicator ON
SPORT shift mode OFF
SPORT shift mode with 4th gear
AT-16
Resistance to
Voltage (V)
body (ohms)
More than 8.5
10 — 17
Less than 0.5
1.5 — 4.0
2.0 — 4.5
Less than 0.5
Less than 1
10 — 16
More than 9
Less than 1
10 — 16
More than 9
Less than 1 —
More than 8 —
Less than 1 —
More than 10 —
Less than 1 —
More than 9 —
6 — 9.1 —
—
Less than 1
Less than 1 —
More than 9 —
Less than 1 —
—
6.5 — 15
0 Less than 1
0 Less than 1
0 Less than 1
0 Less than 1
0 Less than 1
Less than 1 ←
—
→ More than 4
— —
More than 8
10 — 17
Less than 1
Less than 1
—
More than 8
Less than 1
—
More than 8
Less than 1
—
More than 8
Less than 1
—
More than 8
More than 4
—
Less than 1
More than 4
—
Less than 1