Page 1556 of 2248
1. Supplemental Restraint System
“Airbag”
Airbag system wiring harness is routed near the transmis-
sion control module (TCM).
All Airbag system wiring harness and connectors
are colored yellow. Do not use electrical test equip-
ment on these circuit.
Be careful not to damage Airbag system wiring har-
ness when performing diagnostics and servicing the
TCM.
B3M0173A
2. Pre-inspection
1. ATF LEVEL
Make sure that ATF level is in the specification.
B3M0174A
2. FRONT DIFFERENTIAL OIL LEVEL
Make sure that front differential oil level is in the specifica-
tion.
2
3-2AUTOMATIC TRANSMISSION AND DIFFERENTIAL
1. Supplemental Restraint System“Airbag”- 2. Pre-inspection
Page 1557 of 2248
G3M0717
3. OPERATION OF SHIFT SELECTOR LEVER
WARNING:
Stop the engine while checking operation of selector
lever.
1) Check that selector lever does not move from“N”to“R”
without pushing the button.
2) Check that selector lever does not move from“R”to“P”
without pushing the button.
3) Check that selector lever does not move from“P”to“R”
without pushing the button.
4) Check that selector lever does not move from“3”to“2”
without pushing the button.
3. Electrical Components Location
1. SENSOR AND CONTROL MODULE
B3M0178B
1Throttle position sensor
2Dropping resistor
3Vehicle speed sensor 2
4Inhibitor switch
5ECM
6Vehicle speed sensor 1 (AWD)
7Vehicle speed sensor 1 (FWD)
8TCM
9Data link connector (for Subaru select monitor only)
10Data link connector (for Subaru select monitor and OBD-II
general scan tool)
11Diagnosis connector
12Diagnosis terminal
13AT OIL TEMP indicator light
(AT diagnostic indicator light)
3
3-2AUTOMATIC TRANSMISSION AND DIFFERENTIAL
2. Pre-inspection - 3. Electrical Components Location
Page 1558 of 2248
G3M0717
3. OPERATION OF SHIFT SELECTOR LEVER
WARNING:
Stop the engine while checking operation of selector
lever.
1) Check that selector lever does not move from“N”to“R”
without pushing the button.
2) Check that selector lever does not move from“R”to“P”
without pushing the button.
3) Check that selector lever does not move from“P”to“R”
without pushing the button.
4) Check that selector lever does not move from“3”to“2”
without pushing the button.
3. Electrical Components Location
1. SENSOR AND CONTROL MODULE
B3M0178B
1Throttle position sensor
2Dropping resistor
3Vehicle speed sensor 2
4Inhibitor switch
5ECM
6Vehicle speed sensor 1 (AWD)
7Vehicle speed sensor 1 (FWD)
8TCM
9Data link connector (for Subaru select monitor only)
10Data link connector (for Subaru select monitor and OBD-II
general scan tool)
11Diagnosis connector
12Diagnosis terminal
13AT OIL TEMP indicator light
(AT diagnostic indicator light)
3
3-2AUTOMATIC TRANSMISSION AND DIFFERENTIAL
2. Pre-inspection - 3. Electrical Components Location
Page 1559 of 2248
B2M0155AOBD0046A
B2M0211AB3M0182A
B3M0183AB3M0184A
B3M0185AB3M0186A
4
3-2AUTOMATIC TRANSMISSION AND DIFFERENTIAL
3. Electrical Components Location
Page 1560 of 2248
OBD0005COBD0006A
B4M0082BOBD0008D
5
3-2AUTOMATIC TRANSMISSION AND DIFFERENTIAL
3. Electrical Components Location
Page 1561 of 2248
2. SOLENOID
B3M0187A
1Duty solenoid A
2Solenoid 2
3Solenoid 1
4Solenoid 3
5Duty solenoid B
6ATF temperature sensor
7Duty solenoid C (AWD)
B3M0188AB2M0464B
B3M0190A
6
3-2AUTOMATIC TRANSMISSION AND DIFFERENTIAL
3. Electrical Components Location
Page 1562 of 2248
4. Schematic
B3M0376A
1Ignition switch
2Combination meter
3Speedometer circuit
4Inhibitor switch
5Vehicle speed sensor 2
6Vehicle speed sensor 1
7Throttle position sensor
8Diagnosis switch
9FWD switch (AWD)
10Data link connector
11ABS control module
12Engine speed signal
13Torque control signal
14Torque control cut signal
15Mass air flow signal
16ATF temperature sensor
17Dropping resistor
18Duty solenoid A
19Duty solenoid B
20Duty solenoid C (AWD)
21Shift solenoid 1
22Shift solenoid 2
23Shift solenoid 3
24Brake switch
25Cruise set switch
7
3-2AUTOMATIC TRANSMISSION AND DIFFERENTIAL
4. Schematic
Page 1563 of 2248
5. Transmission Control Module (TCM)
I/O Signal
OBD0093A
Check with ignition switch ON.
ContentConnector
No.Terminal
No.Measuring conditions Voltage (V)
Back-up power supply B56 14 Ignition switch OFF 10—16
Ignition power supplyB54 6
Ignition switch ON (with engine OFF) 10—16
B55 1
Inhibitor switch“P”range switch B56 9Select lever in“P”range Less than 1
Select lever in any other than“P”
range (except“N”range)More than 8
“N”range switch B56 8Select lever in“N”range Less than 1
Select lever in any other than“N”
range (except“P”range)More than 8
“R”range switch B56 10Select lever in“R”range Less than 1
Select lever in any other than“R”
rangeMore than 6
“D”range switch B54 1Select lever in“D”range Less than 1
Select lever in any other than“D”
rangeMore than 6
“3”range switch B54 2Select lever in“3”range Less than 1
Select lever in any other than“3”
rangeMore than 6
“2”range switch B54 3Select lever in“2”range Less than 1
Select lever in any other than“2”
rangeMore than 6
“1”range switch B54 4Select lever in“1”range Less than 1
Select lever in any other than“1”
rangeMore than 6
Diagnosis switch B56 6Diagnosis connector connected Less than 1
Diagnosis connector disconnected More than 6
Brake switch B56 7Brake pedal depressed. More than 10.5
Brake pedal released. Less than 1
ABS signal B56 5ABS switch ON Less than 1
ABS switch OFF More than 6.5
AT diagnostic signal B55 12Ignition switch ON (With engine OFF) Less than 1
Ignition switch ON (With engine ON) More than 10
8
3-2AUTOMATIC TRANSMISSION AND DIFFERENTIAL
5. Transmission Control Module (TCM) I/O Signal
