2004 SUBARU FORESTER brake sensor

4AT(H4DOTC)-31
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
P0736 Reverse Incorrect Ratio Vehicle speed sensor, torque con-
verter turbine speed sensor, or con-
trol valve malfunction REVERSE INCORRECT RATIO, Diag-
nostic Procedure with Diagnostic Trouble
Code (DTC).>
P0741Torque Converter Clutch
Circuit Performance or
Stuck OffLock up clutch malfunction or locking
of valve TORQUE CONVERTER CLUTCH CIR-
CUIT PERFORMANCE OR STUCK
OFF, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>
P0743Torque Converter Clutch
Circuit Electrical Lock up solenoid malfunction, open
or short output signal circuit TORQUE CONVERTER CLUTCH CIR-
CUIT ELECTRICAL, Diagnostic Proce-
dure with Diagnostic Trouble Code (DTC).>
P0748Pressure Control Solenoid
“A” ElectricalLine pressure linear solenoid malfunc-
tion, open or short output signal circuit PRESSURE CONTROL SOLENOID “A”
ELECTRICAL, Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>
P0753 Shift Solenoid “A” ElectricalLow clutch duty solenoid malfunction,
open or short output signal circuit SHIFT SOLENOID “A” ELECTRICAL,
Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
P0758 Shift Solenoid “B” Electrical2-4 brake duty solenoid malfunction,
open or short output signal circuit SHIFT SOLENOID “B” ELECTRICAL,
Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
P0763 Shift Solenoid “C” ElectricalHigh clutch duty solenoid malfunction,
open or short output signal circuit SHIFT SOLENOID “C” ELECTRICAL,
Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
P0768 Shift Solenoid “D” ElectricalLow & reverse clutch duty solenoid
malfunction, open or short output sig-
nal circuit SHIFT SOLENOID “D” ELECTRICAL,
Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
P0801Reverse Inhibitor Control
CircuitN–R lock solenoid malfunction, open
or short output signal circuit REVERSE INHIBITOR CONTROL CIR-
CUIT, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>
P1706AT Vehicle Speed Sensor
Circuit Malfunction (rear
wheel)Rear vehicle speed sensor malfunc-
tion, open or short input signal circuit AT VEHICLE SPEED SENSOR CIR-
CUIT MALFUNCTION (REAR WHEEL),
Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
P1707AT AWD Solenoid Valve Cir-
cuit MalfunctionTransfer duty solenoid malfunction,
open or short output signal circuit AT AWD SOLENOID VALVE CIRCUIT
MALFUNCTION, Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>
P1708Throttle Position Sensor
Circuit Low InputAccelerator pedal position sensor or
throttle position sensor malfunction,
open input signal circuit THROTTLE POSITION SENSOR CIR-
CUIT LOW INPUT, Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>
P1709Throttle Position Sensor
Circuit High InputAccelerator pedal position sensor or
throttle position sensor malfunction,
short input signal circuit THROTTLE POSITION SENSOR CIR-
CUIT HIGH INPUT, Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>
P1714Throttle Position Sensor
Power Supply CircuitAccelerator pedal position sensor or
throttle position sensor malfunction,
open or short input signal circuit THROTTLE POSITION SENSOR
POWER SUPPLY CIRCUIT, Diagnostic
Procedure with Diagnostic Trouble Code
(DTC).> DTC Item Diagnosis content Reference

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)-126
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Symptom Related Diagnostic
15.Symptom Related Diagnostic
A: INSPECTION
Symptom Problem parts
Starter does not rotate when select lever is in “P” or “N” range,
starter rotates when select lever is in “R”, “D”, “3” or “2” range. Inhibitor switch
 Select cable
 Select lever
 Starter motor and harness
Abnormal noise when select lever is in “P” or “N” range. Strainer
 Transfer duty solenoid
 Oil pump
Drive plate
 ATF level too high or too low
Hissing noise occurs during standing start. Strainer
 ATF level too high or too low
Noise occurs while driving in “D1”.  Final gear
 Planetary gear
 Reduction gear
 Differential gear oil level too high or too low Noise occurs while driving in “D2”.
Noise occurs while driving in “D3”. Final gear
 Low & reverse brake
 Reduction gear
 Differential gear oil level too high or too low
Noise occurs while driving in “D4”. Final gear
 Low & reverse brake
 Planetary gear
 Reduction gear
 Differential gear oil level too high or too low
Engine stalls while shifting from “1” range to another. Control valve
 Lock-up damper
 Engine performance
 Input shaft
Vehicle moves when select lever is in “N” range. Select cable
 Inhibitor switch
TCM
 Low clutch
Shock occurs when select lever is shifted from “N” to “D” range. Accelerator pedal position sensor
 ATF temperature sensor
 Line pressure linear solenoid
 Low clutch duty solenoid
 Low clutch
TCM
Harness
 Control valve
 ATF deterioration
Excessive time lag occurs when select lever is shifted from “N”
to “D” range. Control valve
 Low clutch
 Line pressure duty solenoid
 Seal ring
 Front gasket of transmission case
Shock occurs when select lever is shifted from “N” to “R” range. Accelerator pedal position sensor
 ATF temperature sensor
 Line pressure linear solenoid
TCM
Harness
 Control valve
 ATF deterioration

4AT(H4DOTC)-128
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Symptom Related Diagnostic
No shift occurs from 1st to 2nd gear.TCM
 Rear vehicle speed sensor
 Front vehicle speed sensor
 Throttle position sensor
 Control valve
2-4 brake
No shift occurs from 2nd to 3rd gear.TCM
 Control valve
High clutch
No shift occurs from 3rd to 4th gear.TCM
 ATF temperature sensor
 Control valve
2-4 brake
Engine brake is not effected when select lever is in “3” range. Inhibitor switch
TCM
 Throttle position sensor
 Control valve
Engine brake is not effected when select lever is in “3” or “2”
range.Control valve
Engine brake is not effected when select lever is in “1” range. Control valve
 Low & reverse brake
Shift characteristics are erroneous. Inhibitor switch
TCM
 Front vehicle speed sensor
 Rear vehicle speed sensor
 Throttle position sensor
 Control valve
 Ground earth
No lock-up occurs.TCM
 Torque converter turbine speed sensor
 Throttle position sensor
 ATF temperature sensor
 Control valve
 Lock-up facing
 Engine speed signal
Parking brake is not effected.  Select cable
 Select lever
 Parking mechanism Shift lever cannot be moved or is hard to move from “P” range.
ATF spurts out. ATF level too high
Differential oil spurts out. Differential gear oil too high
Differential oil level changes excessively. Seal pipe
 Double oil seal
Odor is produced from ATF supply pipe.High clutch
2-4 brake
 Low & reverse clutch
 Reverse clutch
 Lock-up facing
 ATF deterioration
Shock occurs from 1st to 2nd gear.TCM
 Torque converter turbine speed sensor
 Accelerator pedal position sensor
 2-4 brake duty solenoid
 ATF temperature sensor
 Line pressure linear solenoid
 Control valve
2-4 brake
 ATF deterioration
 Engine performance
 Low & reverse duty solenoid Symptom Problem parts

4AT(H4DOTC)-129
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Symptom Related Diagnostic
Slippage occurs from 1st to 2nd gear.TCM
 Accelerator pedal position sensor
 2-4 brake duty solenoid
 ATF temperature sensor
 Line pressure linear solenoid
 Control valve
2-4 brake
Shock occurs from 2nd to 3rd gear.TCM
 Torque converter turbine speed sensor
 Accelerator pedal position sensor
 2-4 brake duty solenoid
 ATF temperature sensor
 Line pressure linear solenoid
 Low & reverse duty solenoid
 Control valve
High clutch
2-4 brake
 ATF deterioration
 Engine performance
 High clutch duty solenoid
Slippage occurs from 2nd to 3rd gear.TCM
 Accelerator pedal position sensor
 2-4 brake duty solenoid
 ATF temperature sensor
 Line pressure linear solenoid
 Control valve
High clutch
2-4 brake
 Low & reverse duty solenoid
Shock occurs from 3rd to 4th gear.TCM
 Torque converter turbine speed sensor
 Accelerator pedal position sensor
 2-4 brake duty solenoid
 ATF temperature sensor
 Line pressure linear solenoid
 Control valve
 Low clutch duty solenoid
2-4 brake
 ATF deterioration
 Engine performance
Slippage occurs from 3rd to 4th gear.TCM
 Accelerator pedal position sensor
 2-4 brake duty solenoid
 ATF temperature sensor
 Line pressure linear solenoid
 Control valve
2-4 brake
Shock occurs when select lever is shifted from “3” to “2” range.TCM
 Torque converter turbine speed sensor
 Accelerator pedal position sensor
 ATF temperature sensor
 Line pressure linear solenoid
 Control valve
 2-4 brake duty solenoid
2-4 brake
 ATF deterioration
 High clutch duty solenoid Symptom Problem parts

4AT(H4DOTC)-130
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Symptom Related Diagnostic
Shock occurs when select lever is shifted from “D” to “1” range.TCM
 Torque converter turbine speed sensor
 Accelerator pedal position sensor
 ATF temperature sensor
 Line pressure linear solenoid
 Control valve
 ATF deterioration
 Low & reverse brake duty solenoid
 Low & reverse clutch solenoid
Shock occurs when select lever is shifted from “2” to “1” range.TCM
 Torque converter turbine speed sensor
 Accelerator pedal position sensor
 ATF temperature sensor
 Line pressure linear solenoid
 Control valve
 Low & reverse clutch
 ATF deterioration
 2-4 brake duty solenoid
 Low & reverse brake duty solenoid
Shock occurs when accelerator pedal is released at medium
speeds.TCM
 Accelerator pedal position sensor
 ATF temperature sensor
 Line pressure linear solenoid
 Control valve
 Lock-up damper
 Engine performance
Vibration occurs during straight-forward operation.TCM
 Lock-up duty solenoid
 Lock-up facing
 Lock-up damper
HOLD switch
Vibration occurs during turns (tight corner “braking” phenome-
non).TCM
 Front vehicle speed sensor
 Rear vehicle speed sensor
 Accelerator pedal position sensor
 ATF temperature sensor
 Transfer clutch
Transfer valve
 Transfer duty solenoid
 ATF deterioration
Harness
HOLD switch
Front wheel slippage occurs during standing starts.TCM
 Front vehicle speed sensor
 Accelerator pedal position sensor
 ATF temperature sensor
 Control valve
 Transfer clutch
Transfer valve
 Transfer pipe
 Transfer duty solenoid
Vehicle is not set in FWD mode.TCM
 Transfer clutch
Transfer valve
 Transfer duty solenoid
Select lever is hard to move. Select cable
 Select lever
 Detente spring
 Manual plate Symptom Problem parts