2004 SUBARU FORESTER wiring diagram

4AT(H4DOTC)-25
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Power Indicator Light Display
2. CHECK POWER SUPPLY AND GROUND LINE
WIRING DIAGRAM:
Step Check Yes No
1 CHECK BATTERY TERMINAL.
Turn the ignition switch to OFF.Is there poor contact in battery
terminal?Repair or tighten the
battery terminal.Go to step 2.
AT-01840
B40B55B56
B21
F2B61F45
F60
B55 B:B56
B11
T4TCM C:
B40
E
NO.11
NO.4
SBF-4 SBF-1 C27
C28C29
B8
B17C31C21
C12 C2
C3
12 345678
9101112
13 14 1516
1
12 10
13
SBF-5
B21
E216
E
B100
F29
F60
F316
F44B61 7
E
EE
123
4
5678
9101112
13 14 15 16
B11
1
234
56
78
9
1314
15
20
19 1716 10 1112
18
12 7
8956 34
10 11 12
19 20 2113 14 15 16
17 18 22 23 2412 78956 34
10 11 12 19 20 21
29 30 31 13 14 15 16 17
27 2818
22 23 24 25 26
19
20
BATTERY
IGNITION
SWITCH
TRANSMISSION
B:
C:DATA LINK
CONNECTOR
F45
B629
LHD
RHD
RHD
LHD
LHDRHD
LHD
RHDRHD
LHD
1234 5678910 11 12 13 14 15 16 17 18 19 201234567891011121314151612345678

4AT(H4DOTC)-27
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure for Subaru Select Monitor Communication
11.Diagnostic Procedure for Subaru Select Monitor Communication
A: COMMUNICATION FOR INITIALIZING IMPOSSIBLE
DIAGNOSTIC:
Faulty harness connector
TROUBLE SYMPTOM:
Subaru Select Monitor communication failure
WIRING DIAGRAM:
AT-01840
B40B55B56
B21
F2B61F45
F60
B55 B:B56
B11
T4TCM C:
B40
E
NO.11
NO.4
SBF-4 SBF-1 C27
C28C29
B8
B17C31C21
C12 C2
C3
12 345678
9101112
13 14 1516
1
12 10
13
SBF-5
B21
E216
E
B100
F29
F60
F316
F44B61 7
E
EE
123
4
5678
9101112
13 14 15 16
B11
1
234
56
78
9
1314
15
20
19 1716 10 1112
18
12 7
8956 34
10 11 12
19 20 2113 14 15 16
17 18 22 23 2412 78956 34
10 11 12 19 20 21
29 30 31 13 14 15 16 17
27 2818
22 23 24 25 26
19
20
BATTERY
IGNITION
SWITCH
TRANSMISSION
B:
C:DATA LINK
CONNECTOR
F45
B629
LHD
RHD
RHD
LHD
LHDRHD
LHD
RHDRHD
LHD
1234 5678910 11 12 13 14 15 16 17 18 19 201234567891011121314151612345678

4AT(H4DOTC)-33
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
13.Diagnostic Procedure with Diagnostic Trouble Code (DTC)
A: DTC P0705 TRANSMISSION RANGE SENSOR
DTC DETECTING CONDITION:
 Inhibitor switch with fault.
 Input signal circuit of inhibitor switch is open.
 More than 2 range signal is input.
 “D” range signal is not input when the select lever is shifted from “N” to “3” range.
TROUBLE SYMPTOM:
 Shift characteristics are erroneous.
 Engine brake is not effected when select lever is in “3” range.
 Engine brake is not effected when select lever is in “2” range.
 Engine brake is not effected when select lever is in “1” range.
 Range position of select lever and AT select lever position indicator light on combination meter is not
matched.
WIRING DIAGRAM:
 LHD model
AT-01841
B5B14B22B4A16A4A10A6
32187654
9810311465
E
B38
i3
i10i10
T3
T7 B12
A:
B:B54
TCM
B55
12
14
P
R
N
D
3
2
1
B12
123456789101112
123456789101112131415161718192021222324252627282930
B55
12 7
8956 34
10 11 12
19 20 2113 14 15 16
17 18 22 23 24
B:
INHIBITOR SWITCHCONBINATION
METER
B54
A:
12
7
89 56 34
10 11 1219 20 21
29 30 31 13 14 151617
27 2818
22 23 24 25 26
T7
123456
78910 11 12
B38
1234 56
10 11 12 13 14 15716
23 3019 20
22 26 27 28 29817
24 3118
25921
32

4AT(H4DOTC)-42
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
B: DTC P0712 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT LOW
INPUT
DTC DETECTING CONDITION:
Input signal circuit of TCM to ATF temperature sensor is open or shorted.
TROUBLE SYMPTOM:
Excessive shift shock.
WIRING DIAGRAM:
Step Check Yes No
1 CHECK HARNESS CONNECTOR BETWEEN
TCM AND ATF TEMPERATURE SENSOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmis-
sion and TCM.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B55) No. 21 — (B11) No. 11:Is the resistance less than 1
Ω?Go to step 2.Repair the open
circuit in harness
between TCM and
transmission con-
nector.
AT-01113
B11
B55
AT11
1
234
56
78
9
1314
15
20
19 1716 10 1112
1821
9
15 11 1
3
B55
B11
AT11
T4 TCM
3412
12 7
8956 34
10 11 12
19 20 2113 14 15 16
17 18 22 23 24
ATF TEMPERATURE
SENSOR
TRANSMISSION

4AT(H4DOTC)-46
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
C: DTC P0713 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT HIGH
INPUT
DTC DETECTING CONDITION:
Input signal circuit of TCM to ATF temperature sensor is open or shorted.
TROUBLE SYMPTOM:
Excessive shift shock.
WIRING DIAGRAM:
Step Check Yes No
1 CHECK HARNESS CONNECTOR BETWEEN
TCM AND ATF TEMPERATURE SENSOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmis-
sion and TCM.
3) Turn the ignition switch to ON.
4) Measure the voltage of harness between
TCM connector and chassis ground.
Connector & terminal
(B55) No. 21 (+) — Chassis ground (
−):Is the voltage less than 1 V? Go to step 2.Repair the short
circuit in harness
between TCM and
transmission con-
nector.
AT-01113
B11
B55
AT11
1
234
56
78
9
1314
15
20
19 1716 10 1112
1821
9
15 11 1
3
B55
B11
AT11
T4 TCM
3412
12 7
8956 34
10 11 12
19 20 2113 14 15 16
17 18 22 23 24
ATF TEMPERATURE
SENSOR
TRANSMISSION

4AT(H4DOTC)-49
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
D: DTC P0715 INPUT/TURBINE SPEED SENSOR CIRCUIT
DTC DETECTING CONDITION:
Input signal circuit of TCM is open or shorted.
TROUBLE SYMPTOM:
Excessive shift shock.
WIRING DIAGRAM:
Step Check Yes No
1 CHECK TORQUE CONVERTER TURBINE
SPEED SENSOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Measure the resistance between transmis-
sion connector receptacle’s terminals.
Connector & terminal
(T4) No. 5 — No. 10:Is the resistance 450 — 650
Ω?Go to step 2.Replace the torque
converter turbine
speed sensor.
Torque Converter
Turbine Speed
Sensor.>
AT-01843
5
10B11
T4
TCMB55
7
16
B11
1
234
56
78
9
1314
15
20
19 1716 10 1112
18
B55
TORQUE
CONVERTER
TURBINE SPEED
SENSOR
B299SHIELD
JOINT
CONNECTOR
612
12 7
8956 34
10 11 12
19 20 2113 14 15 16
17 18 22 23 24
B299
12345678

4AT(H4DOTC)-52
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
E: DTC P0719 TORQUE CONVERTER/BRAKE SWITCH “B” CIRCUIT LOW
DTC DETECTING CONDITION:
Stop light switch malfunction or input signal open circuit.
TROUBLE SYMPTOM:
Gear is not shifted down when climbing hill.
WIRING DIAGRAM:
Step Check Yes No
1 CHECK OPERATION OF BRAKE LIGHT.
Depress the brake pedal.Does the brake light illumi-
nate?Go to step 2.Check the brake
light circuit.
2 CHECK TCM INPUT SIGNAL.
1) Depress the brake pedal.
2) Measure the voltage of harness between
TCM and stop light switch.
Connector & terminal
(B55) No. 20 (+) — Chassis ground (
−):Is the voltage more than 10 V? Go to step 5.Go to step 3.
AT-01844
B55
B65
E
2 3
SBF-1
SBF-2
NO.16
20
B55
B65
TCM
12 7
8956 34
10 11 12
19 20 2113 14 15 16
17 18 22 23 24
1234
BATTERY
STOP LIGHT
SWITCH
TO STOP LIGHT

4AT(H4DOTC)-54
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
F: DTC P0720 OUTPUT SPEED SENSOR CIRCUIT
DTC DETECTING CONDITION:
 The vehicle speed signal is abnormal.
 The circuit in combination meter is faulty.
 The harness connector between TCM and vehicle speed sensor is in short or open.
TROUBLE SYMPTOM:
 Erroneous idling.
 Engine stalls.
 Poor driving performance.
WIRING DIAGRAM:
AT-01845
18 14
B11
B299
T4
B6
B15C1
B11
12 34
5678
9
13 14 15
20 19 1716 10 11 1218
i10
B37
i2
B38
i3
TCM
B55 B:
B56 C:
18
12
1234567813 14 15 16 17 18 1911 101225 26 27 28 29 30 31
921203223 2224
i3
B56
12 78 956 34
10 11 12 19 20 21
29 30 31 13 14 15 16 17
27 2818
22 23 24 25 26
C:
FRONT
VEHICLE SPEED
SENSOR CONBINATION
METER
SPEEDOMETER
: RHD MODEL SHIELD
JOINT
CONNECTOR
LHD
RHD
RHD
: LHD MODEL
LHD RHD
7
834
LHD
i10
123456789101112131415161718192021222324252627282930
B:B55
12 7
8956 34
10 11 12
19 20 2113 14 15 16
17 18 22 23 24
B37
34 12 89
10 11
12 13 14 15 16 17 18 19 20 21 22 23 24567
B299
12345678