SUBARU FORESTER 2004 Service Repair Manual
Manufacturer: SUBARU, Model Year: 2004, Model line: FORESTER, Model: SUBARU FORESTER 2004Pages: 2870, PDF Size: 38.67 MB
Page 2691 of 2870
4AT(H4DOTC)-115
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
9 CHECK HARNESS CONNECTOR BETWEEN
TCM AND COMBINATION METER.
Measure the resistance of harness connector
between TCM and chassis ground to make
sure that circuit does not short.
Connector & terminal
(B56) No. 14 — Chassis ground:Is the resistance more than 1
MΩ?Go to step 10.Repair the short
circuit in harness
between TCM and
combination meter
connector.
10 CHECK OUTPUT SIGNAL EMITTED FROM
TCM.
1) Turn the ignition switch to OFF.
2) Connect the connector to TCM and combi-
nation meter.
3) Turn the ignition switch to ON.
4) Measure the signal voltage for TCM while
installing and removing the fuse to FWD switch
connector.
Connector & terminal
(B56) No. 14 (+) — Chassis ground (
−):Is the voltage less than 1 V? Go to step 11.Go to step 12.
11 CHECK OUTPUT SIGNAL EMITTED FROM
TCM.
Measure the signal voltage for TCM while
removing the fuse from FWD switch connector.
Connector & terminal
(B56) No. 14 (+) — Chassis ground (
−):Is the voltage more than 10.5
V?Go to step 12.Replace the TCM.
trol Module
(TCM).>
12 CHECK POOR CONTACT.Is there poor contact in FWD
switch circuit?Repair the poor
contact.Replace the TCM.
trol Module
(TCM).> Step Check Yes No
Page 2692 of 2870
4AT(H4DOTC)-116
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
B: CHECK POWER SWITCH
DIAGNOSIS:
The LED does not come on when POWER switch is ON.
The POWER switch circuit is open or shorted.
TROUBLE SYMPTOM:
No POWER mode occurs.
WIRING DIAGRAM:
LHD model
AT-01856
SBF-4 SBF-1
No.13
i10 B:
B54
TCM A:B56
R92 C: C:
i11
C2
B9
C25
A8
E
E
B54
B56
123456
78910 1112
13
14
15 16 17
1819
2021
2223
24
2526
2728
2930
i10
12345678910
i11
5
4 POWER
POWEROFF HOLD
B37
B98
R92
12
34
56
i2
B375B98
R221
i3
B386
B38
219
32
1234 5610 11 12 13 14 15716
23 3019 20
22 26 27 28 29817
24 3118
25
12 345678910111213141516171819202129303122232425262728
POWER AND HOLD
SWITCH BATTERY IGNITION
SWITCH
COMBINATION
METER
123
89
10411 12
13 14 15 1656
7
1734 12 8910 11
12 13 14 15 16 17 18 19 20 21 22 23 24567
A:
C:
B:
C:
Page 2693 of 2870
4AT(H4DOTC)-117
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
RHD model
Step Check Yes No
1 CHECK POWER SWITCH OPERATION.When the POWER switch is
turned to OFF, does LED light
up?Go to step 5.Go to step 2.
AT-01857
SBF-4 SBF-1
No.13
i10 B:
B54
TCM A:B56
B133 C: C:
i11
C2
B9
C25
A8
E
E
B54
B56
123456
78910 1112
13
14
15 16 17
1819
2021
2223
24
2526
2728
2930
i10
12345678910
i11
5
4 POWER
POWEROFF HOLD
i2B133
12
3456
i3
B3816i2
B3711
i3
219
32
1234 5610 11 12 13 14 15716
23 3019 20
22 26 27 28 29817
24 3118
25
12 345678910111213141516171819202129303122232425262728
POWER AND HOLD
SWITCH BATTERY IGNITION
SWITCH
COMBINATION
METER
123
89
10411 12
13 14 15 1656
7
17
123 8
910411 12 13 14 15 165671718
A:
C:
B:
C:
Page 2694 of 2870
4AT(H4DOTC)-118
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
2 CHECK POWER SWITCH OPERATION.When the POWER switch is
turned to ON, does LED light
up?Go to step CHECK
HOLD SWITCH.
120, CHECK
HOLD SWITCH,
Diagnostic Proce-
dure without Diag-
nostic Trouble
Code (DTC).>Go to step 3.
3 CHECK POWER INDICATOR LIGHT.
1) Turn the ignition switch to OFF.
2) Remove the combination meter.
3) Remove the POWER indicator light bulb
from combination meter.Is the POWER indicator light
bulb OK?Go to step 4.Replace the
POWER indicator
light bulb.
tion Meter Assem-
bly.>
4 CHECK POWER SWITCH GROUND CIR-
CUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from POWER
switch.
3) Measure the resistance of harness connector
between POWER switch and chassis ground.
Connector & terminal
LHD model
(R92) No. 4 — Chassis ground:
RHD model
(B133) No. 4 — Chassis ground:Is the resistance less than 1
Ω?Go to step 5.Repair the open
circuit in harness
between POWER
switch and chas-
sis ground.
5 CHECK POWER SWITCH.
1) Turn the POWER switch to ON.
2) Measure the resistance between terminals
of POWER switch.
Te r m i n a l s
No. 5 — No. 4:Is the resistance less than 1
Ω?Go to step 6.Replace the
POWER switch.
6 CHECK POWER SWITCH.
1) Turn the POWER switch to OFF.
2) Measure the resistance between terminals
of POWER switch.
Te r m i n a l s
No. 5 — No. 4:Is the resistance more than1
MΩ?Go to step 7.Replace the
POWER switch.
7 CHECK HARNESS CONNECTOR BETWEEN
TCM AND POWER SWITCH.
Measure the resistance of harness connector
between TCM and POWER switch.
Connector & terminal
(B54) No. 8 — (B133) No. 5:Is the resistance less than 1
Ω?Go to step 8.Repair the open
circuit in harness
between TCM and
POWER switch
connector.
8 CHECK HARNESS CONNECTOR BETWEEN
TCM AND POWER SWITCH.
Measure the resistance of harness connector
between TCM connector and chassis ground.
Connector & terminal
(B54) No. 8 — Chassis ground:Is the resistance more than 1
MΩ?Go to step 9.Repair the short
circuit in harness
between TCM and
POWER switch
connector.
9 CHECK INPUT SIGNAL FOR TCM.
1) Connect the connectors to TCM and
POWER switch.
2) Turn the ignition switch to ON (engine OFF).
3) Measure the signal voltage for TCM while
turning POWER switch to OFF.
Connector & terminal
(B54) No. 8 (+) — Chassis ground (–):Is the voltage more than 10 V? Go to step 10.Replace the TCM.
trol Module
(TCM).> Step Check Yes No
Page 2695 of 2870
4AT(H4DOTC)-119
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
10 CHECK INPUT SIGNAL FOR TCM.
Measure the signal voltage for TCM while turn-
ing POWER switch to ON.
Connector & terminal
(B54) No. 8 (+) — Chassis ground (–):Is the voltage less than 1 V? Go to step 11.Replace the TCM.
trol Module
(TCM).>
11 CHECK POOR CONTACT.Is there poor contact? Repair the poor
contact.A temporary poor
contact of the con-
nector or harness
in POWER switch
circuit. Step Check Yes No
Page 2696 of 2870
4AT(H4DOTC)-120
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
C: CHECK HOLD SWITCH
DIAGNOSIS:
The LED does not come on when HOLD switch is ON.
The HOLD switch circuit is open or shorted.
TROUBLE SYMPTOM:
The 2nd gear is not held.
Failure of vehicle to start in 2nd gear except 1st range.
WIRING DIAGRAM:
LHD model
AT-01858
SBF-4 SBF-1
No.14
i10
i2
B37
B54
R92
B14
9
5
E
B54
123456
78 9 10 1112
13
14
15 16 17
1819
2021
2223
24
2526
2728
2930
i10
POWEROFF HOLD
3
4
E
HOLD
R92
12
34
56219
32
B38
1234
56
10 11 12 13 14 157
16
23 3019 20
22 26 27 28 298
17
24 3118
25
12i3
B38
20B98
R2
26
POWER AND HOLD
SWITCH IGNITION
SWITCHBATTERY
COMBINATION
METER
TCM
123
8910411 12
13 14 15 1656
7
17
B98
B37
1234
5678
910
11
121314
1516 17 1819
20 2122
Page 2697 of 2870
4AT(H4DOTC)-121
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
RHD model
Step Check Yes No
1 CHECK HOLD SWITCH OPERATION.When the HOLD switch is
turned to OFF, does LED light
up?Go to step 5.Go to step 2.
AT-01859
SBF-4 SBF-1
No.14
i10
i3
B38
B54
B133
B15
C7
16
E
B54
123456
78 9 10 1112
13
14
15 16 17
1819
2021
2223
24
2526
2728
2930
i10
POWEROFF HOLD
3
4
E
HOLD
i2
B133
12
34
56219
32
i3
1234
56
10 11 12 13 14 157
16
23 3019 20
22 26 27 28 298
17
24 3118
25
6i2
B37
26
POWER AND HOLD
SWITCH IGNITION
SWITCHBATTERY
COMBINATION
METER
TCM
123
8910411 12
13 14 15 1656
7
17
123 8
910411 12 13 14 15 165671718
Page 2698 of 2870
4AT(H4DOTC)-122
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
2 CHECK HOLD SWITCH OPERATION.When the HOLD switch is
turned to ON, does LED light
up?Go to step Check
Kick-Down Switch.
124, CHECK
KICK–DOWN
SWITCH, Diagnos-
tic Procedure with-
out Diagnostic
Trouble Code
(DTC).>Go to step 3.
3 CHECK HOLD INDICATOR LIGHT.
1) Turn the ignition switch to OFF.
2) Remove the combination meter.
3) Remove the HOLD indicator light bulb from
combination meter.Is the HOLD indicator light bulb
OK?Go to step 4.Replace the HOLD
indicator light bulb.
Meter Assembly.>
4 CHECK HOLD SWITCH GROUND LINE.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from HOLD switch.
3) Measure the resistance of harness connec-
tor between HOLD switch and chassis ground.
Connector & terminal
LHD model
(R92) No. 4 — Chassis ground:
RHD model
(B133) No. 4 — Chassis ground:Is the resistance less than 1
Ω?Go to step 5.Repair the open
circuit in harness
between HOLD
switch and chas-
sis ground.
5 CHECK HOLD SWITCH.
1) Turn the HOLD switch to ON.
2) Measure the resistance between terminals
of HOLD switch.
Te r m i n a l s
No. 4 — No. 3:Is the resistance less than 1
Ω?Go to step 6.Replace the HOLD
switch.
6 CHECK HOLD SWITCH.
1) Turn the HOLD switch to OFF.
2) Measure the resistance between terminals
of HOLD switch.
Te r m i n a l s
No. 4 — No. 3:Is the resistance more than 1
MΩ?Go to step 7.Replace the HOLD
switch.
7 CHECK HARNESS CONNECTOR BETWEEN
TCM AND HOLD SWITCH.
1) Disconnect the connector TCM and combi-
nation meter.
2) Measure the resistance of harness connec-
tor between TCM and HOLD switch.
Connector & terminal
LHD model
(B54) No. 2 — (R92) No. 3:
RHD model
(B54) No. 2 — (B133) No. 3:Is the resistance less than 1
Ω?Go to step 8.Repair the open
circuit in harness
between TCM and
HOLD switch con-
nector and poor
contact in cou-
pling connector.
8 CHECK HARNESS CONNECTOR BETWEEN
TCM AND COMBINATION METER.
Measure the resistance of harness connector
between TCM and combination meter.
Connector & terminal
(B54) No. 6 — (i10) No. 14:Is the resistance less than 1
Ω?Go to step 9.Repair the open
circuit in harness
between TCM and
combination
meter, and poor
contact in cou-
pling connector. Step Check Yes No
Page 2699 of 2870
4AT(H4DOTC)-123
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
9 CHECK HARNESS CONNECTOR BETWEEN
TCM AND HOLD SWITCH.
Measure the resistance of harness connector
between TCM and chassis ground to make
sure that circuit does not short.
Connector & terminal
(B56) No. 6 — Chassis ground:Is the resistance more than 1
MΩ?Go to step 10.Repair the short
circuit in harness
between TCM and
HOLD switch con-
nector.
10 CHECK POOR CONTACT.Is there poor contact in HOLD
switch circuit?Repair the poor
contact.A temporary poor
contact of the con-
nector or harness or
connector in HOLD
switch circuit. Step Check Yes No
Page 2700 of 2870
4AT(H4DOTC)-124
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
D: CHECK KICK–DOWN SWITCH
DIAGNOSIS:
The kick-down switch is OFF when the throttle is partially open or fully closed, but it is not ON when the
throttle is fully opened.
The kick-down switch circuit is open or shorted.
TROUBLE SYMPTOM:
No kick-down occurs (when the throttle is fully opened).
WIRING DIAGRAM:
Step Check Yes No
1 CONFIRM MODEL.Is the vehicle 2.0 L model? Go to step 2.Go to Symptom
Related Diagnostic.
126, Symptom
Related Diagnos-
tic.>
2 CHECK KICK-DOWN SWITCH OPERATION.When the accelerator pedal is
depressed, does “ON” dis-
played?Go to Symptom
Related Diagnostic.
126, Symptom
Related Diagnos-
tic.>Go to step 3.
AT-01860
E
B54
B54 TCM
KICK-DOWN
SWITCH
B129 1 2
B129
11
1
2123
8910411 12
13 14 15 1656
7
17