Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Forester 1999-2004 Approved Subaru Forester 2004 3 - Transmission Automatic Transmission (Diagnostics) Transmission Control Module (TCM) IO Signal
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TRANSMISSION CONTROL MODULE (TCM) I/O SIGNAL
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
5. Transmission Control Module (TCM) I/O Signal
A: ELECTRICAL SPECIFICATION
to B55 to B54
9 8 7 6 5 4 3 2 1 9 8 7 6 5 4 3 2 1
18 17 16 15 14 13 12 11 10 18 17 16 15 14 13 12 11 10
24 23 22 21 20 19 24 23 22 21 20 19
AT-00420
Check with ignition switch ON.
Con- Resistance
Content nector Terminal No. Measuring conditions Voltage (V) to body
No. (ohms)
Back-up power supply B55 6 Ignition switch OFF 10 -- 13 --
B54 23 Ignition switch ON (with
Ignition power supply 10 -- 13 --
B54 24 engine OFF)
Select lever in "P" range Less than 1
"P" range Select lever in any other
B55 23 --
switch than "P" range (except "N" More than 8
range)
Select lever in "N" range Less than 1
"N" range Select lever in any other
B55 22 --
switch than "N" range (except "P" More than 8
range)
Select lever in "R" range Less than 1
"R" range
B55 17 Select lever in any other --
switch More than 8
than "R" range
Inhibitor Select lever in "D" range Less than 1
switch "D" range
B55 8 Select lever in any other --
switch More than 8
than "D" range
Select lever in "3" range Less than 1
"3" range
B55 18 Select lever in any other --
switch More than 8
than "3" range
Select lever in "2" range Less than 1
"2" range
B54 10 Select lever in any other --
switch More than 8
than "2" range
Select lever in "1" range Less than 1
"1" range
B54 1 Select lever in any other --
switch More than 8
than "1" range
Brake pedal depressed. More than 10.5
Brake switch B55 24 --
Brake pedal released. Less than 1
4AT(H4SO)-11
TRANSMISSION CONTROL MODULE (TCM) I/O SIGNAL
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Check with ignition switch ON.
Con- Resistance
Content nector Terminal No. Measuring conditions Voltage (V) to body
No. (ohms)
Light ON Less than 1
AT OIL TEMP warning light B54 3 --
Light OFF More than 9
Accelerator pedal position Throttle fully closed. 0.2 -- 1.0
B55 2 --
sensor Throttle fully open. 4.2 -- 4.7
Accelerator pedal position Ignition switch ON (with
B55 1 4.8 -- 5.3 --
sensor power supply engine OFF)
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