brake sensor SUBARU FORESTER 2004 Service Owner's Guide
[x] Cancel search | Manufacturer: SUBARU, Model Year: 2004, Model line: FORESTER, Model: SUBARU FORESTER 2004Pages: 2870, PDF Size: 38.67 MB
Page 2475 of 2870
4AT(H4SO)-16
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Transmission Control Module (TCM) I/O Signal
(1) Transmission control module
(TCM)(17) “P” range indicator light (35) Torque control signal 2
(18) “P” range switch (36) Torque control signal 1
(2) Cruise control module (19) “R” range indicator light (37) Intake manifold pressure signal
(3) ABS control module (20) “R” range switch (38) AT diagnostics signal
(4) Ignition switch (21) “N” range indicator light (39) Engine control module (ECM)
(5) Brake switch (22) “N” range switch (40) ATF temperature sensor
(6) Brake light (23) “D” range indicator light (41) Torque converter turbine speed
sensor
(7) Battery (24) “D” range switch
(8) Combination meter (Speedome-
ter circuit)(25) “3” range indicator light (42) Rear vehicle speed sensor
(26) “3” range switch (43) Front vehicle speed sensor
(9) AT OIL TEMP warning light (27) “2” range indicator light (44) Shift solenoid 1
(10) FWD indicator light (28) “2” range switch (45) Shift solenoid 2
(11) POWER indicator light (29) “1” range indicator light (46) 2-4 brake timing solenoid
(12) FWD switch (30) “1” range switch (47) Line pressure duty solenoid
(13) POWER switch (31) Data link connector (48) 2-4 brake duty solenoid
(14) Kick-down switch (32) Throttle position sensor (49) Lock-up duty solenoid
(15) Hold indicator light (33) Engine speed signal (50) Low clutch timing solenoid
(16) HOLD switch (34) Torque control cut signal (51) Transfer duty solenoid
Page 2477 of 2870
![SUBARU FORESTER 2004 Service Owners Guide 4AT(H4SO)-18
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Subaru Select Monitor
2. READ CURRENT DATA
1) On the «Main Menu» display screen, select the {Each System Check} and press the [YES] key.
2) On the «](/img/17/57426/w960_57426-2476.png "SUBARU FORESTER 2004 Service Owners Guide 4AT(H4SO)-18
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Subaru Select Monitor
2. READ CURRENT DATA
1) On the «Main Menu» display screen, select the {Each System Check} and press the [YES] key.
2) On the «")
4AT(H4SO)-18
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Subaru Select Monitor
2. READ CURRENT DATA
1) On the «Main Menu» display screen, select the {Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display screen, select the {Transmission Control System} and press the
[YES] key.
3) Press the [YES] key after the information of transmission type is displayed.
4) On the «Transmission Diagnosis» display screen, select the {Current Data Display & Save} and press the
[YES] key.
5) On the «Data Display Menu» display screen, select the {Data Display} and press the [YES] key.
6) Using the scroll key, move the display screen up or down until desired data is shown.
A list of the support data is shown in the following table.
NOTE:
For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.
Contents Display Unit of measure
Battery voltage Battery Voltage V
Rear vehicle speed sensor signal Rear Wheel Speed km/h or MPH
Front vehicle speed sensor signal Front Wheel Speed km/h or MPH
Engine speed signal Engine Speed rpm
Automatic transmission fluid temperature signal ATF Temp.°C or °F
Throttle position signal Throttle Sensor Voltage V
Gear position Gear Position —
Line pressure control duty ratio Line Pressure Duty Ratio %
Lock up clutch control duty ratio Lock Up Duty Ratio %
Transfer clutch control duty ratio (AWD model) Transfer Duty Ratio %
Power supply for throttle position sensor Throttle Sensor Power V
Torque converter turbine speed signal Turbine Revolution Speed rpm
2-4 brake timing pressure control duty ratio Brake Clutch Duty Ratio %
Intake manifold pressure sensor voltage Mani. Pressure Voltage V
FWD switch signal FWD Switch ON or OFF
Stop light switch signal Stop Light Switch ON or OFF
Anti lock brake system signal ABS Signal ON or OFF
Cruise control system signal Cruise Control Signal ON or OFF
Parking range signal P Range Signal ON or OFF
Neutral range signal N Range Signal ON or OFF
Reverse range signal R Range Signal ON or OFF
Drive range signal D Range Signal ON or OFF
3rd range signal 3rd Range Signal ON or OFF
2nd range signal 2nd Range Signal ON or OFF
1st range signal 1st Range Signal ON or OFF
Shift control solenoid A Shift Solenoid #1 ON or OFF
Shift control solenoid B Shift Solenoid #2 ON or OFF
Torque control output signal #1 Torque Control Signal 1 ON or OFF
Torque control output signal #2 Torque Control Signal 2 ON or OFF
Torque control cut signal Torque Control Cut Sig. ON or OFF
2-4 brake timing control solenoid valve 2-4 Brake Timing Sol. ON or OFF
Low clutch timing control solenoid valve Low Clutch Timing Sol. ON or OFF
Automatic transmission diagnosis indicator lamp Diagnosis Lamp ON or OFF
Power mode switch signal Power Mode Switch ON or OFF
Hold mode switch signal Hold Mode Switch ON or OFF
Kick down switch signal Kick Down Switch ON or OFF
Automatic transmission fluid temperature lamp ATF Temperature Lamp ON or OFF
Page 2494 of 2870
4AT(H4SO)-35
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
12.List of Diagnostic Trouble Code (DTC)
A: LIST
DTC Item Content of diagnosis Index
11 Engine speed signalDetects open or shorted input
signal circuit.
Trouble Code (DTC).>
27 ATF temperature sensorDetects open or shorted input
signal circuit.
nostic Trouble Code (DTC).>
31 Throttle position sensorDetects open or shorted input
signal circuit.
Diagnostic Trouble Code (DTC).>
33Front vehicle speed
sensorDetects open or shorted input
signal circuit.
Diagnostic Trouble Code (DTC).>
36Torque converter tur-
bine speed sensorDetects open or shorted input
signal circuit.
Procedure with Diagnostic Trouble Code (DTC).>
38 Torque control signalDetects open or shorted input
signal circuit.
nostic Trouble Code (DTC).>
45Intake manifold pres-
sure signalDetects open or shorted input
signal circuit.
dure with Diagnostic Trouble Code (DTC).>
71 Shift solenoid 1Detects open or shorted out-
put signal circuit.
Trouble Code (DTC).>
72 Shift solenoid 2Detects open or shorted out-
put signal circuit.
Trouble Code (DTC).>
73Low clutch timing sole-
noidDetects open or shorted out-
put signal circuit.
Diagnostic Trouble Code (DTC).>
742-4 brake timing sole-
noidDetects open or shorted out-
put signal circuit.
nostic Trouble Code (DTC).>
75Line pressure duty sole-
noidDetects open or shorted out-
put signal circuit.
with Diagnostic Trouble Code (DTC).>
76 2-4 brake duty solenoidDetects open or shorted out-
put signal circuit.
Diagnostic Trouble Code (DTC).>
77 Lock-up duty solenoidDetects open or shorted out-
put signal circuit.
Trouble Code (DTC).>
79 Transfer duty solenoidDetects open or shorted out-
put signal circuit.
Diagnostic Trouble Code (DTC).>
93Rear vehicle speed
sensorDetects open or shorted input
signal circuit.
Diagnostic Trouble Code (DTC).>
Page 2570 of 2870
4AT(H4SO)-111
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Symptom Related Diagnostic
Vehicle does not start in any shift range (engine revving up). Strainer
Line pressure duty solenoid
Control valve
Drive pinion
Hypoid gear
Axle shaft
Differential gear
Oil pump
Input shaft
Output shaft
Planetary gear
Drive plate
ATF level too low
Front gasket transmission case
Vehicle does not start in “R” range only (engine revving up). Select cable
Select lever
Control valve
Low & reverse clutch
Reverse clutch
Vehicle does not start in “R” range only (engine stalls). Low clutch
2-4 brake
Planetary gear
Parking brake mechanism
Vehicle does not start in “D”, “3” range only (engine revving up). Low clutch
One-way clutch
Vehicle does not start in “D”, “3” or “2” range only (engine rev-
ving up). Low clutch
Vehicle does not start in “D”, “3” or “2” range only (engine stalls). Reverse clutch
Vehicle starts in “R” range only (engine revving up). Control valve
Acceleration during standing starts is poor (high stall rpm). Control valve
Low clutch
Reverse clutch
ATF level too low
Front gasket transmission case
Differential gear oil level too high or too low
Acceleration during standing starts is poor (low stall rpm). Oil pump
Torque converter one-way clutch
Engine performance
Acceleration is poor when select lever is in “D”, “3” or “2” range
(normal stall rpm).TCM
Control valve
High clutch
2-4 brake
Planetary gear
Acceleration is poor when select lever is in “R” (normal stall rpm). Control valve
High clutch
2-4 brake
Planetary gear
No shift occurs from 1st to 2nd gear.TCM
Rear vehicle speed sensor
Front vehicle speed sensor
Throttle position sensor
Shift solenoid 1
Control valve
2-4 brake
No shift occurs from 2nd to 3rd gear.TCM
Control valve
High clutch
Shift solenoid 2 Symptom Problem parts
Page 2571 of 2870
4AT(H4SO)-112
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Symptom Related Diagnostic
No shift occurs from 3rd to 4th gear.TCM
Shift solenoid 1
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
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
Throttle position sensor
2-4 brake duty solenoid
ATF temperature sensor
Line pressure duty solenoid
Control valve
2-4 brake
ATF deterioration
Engine performance
2-4 brake timing solenoid
Slippage occurs from 1st to 2nd gear.TCM
Throttle position sensor
2-4 brake duty solenoid
ATF temperature sensor
Line pressure duty solenoid
Control valve
2-4 brake
2-4 brake timing solenoid
High clutch Symptom Problem parts
Page 2572 of 2870
4AT(H4SO)-113
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Symptom Related Diagnostic
Shock occurs from 2nd to 3rd gear.TCM
Throttle position sensor
2-4 brake duty solenoid
ATF temperature sensor
Line pressure duty solenoid
Control valve
High clutch
2-4 brake
ATF deterioration
Engine performance
2-4 brake timing solenoid
Slippage occurs from 2nd to 3rd gear.TCM
Throttle position sensor
2-4 brake duty solenoid
ATF temperature sensor
Line pressure duty solenoid
Control valve
High clutch
2-4 brake
2-4 brake timing solenoid
Shock occurs from 3rd to 4th gear.TCM
Throttle position sensor
2-4 brake duty solenoid
ATF temperature sensor
Line pressure duty solenoid
Control valve
2-4 brake timing solenoid
2-4 brake
ATF deterioration
Engine performance
Low clutch timing solenoid
Low clutch
Slippage occurs from 3rd to 4th gear.TCM
Throttle position sensor
2-4 brake duty solenoid
ATF temperature sensor
Line pressure duty solenoid
Control valve
2-4 brake
2-4 brake timing solenoid
Shock occurs when select lever is moved from “3” to “2” range.TCM
Throttle position sensor
ATF temperature sensor
Line pressure duty solenoid
Control valve
2-4 brake duty solenoid
2-4 brake
ATF deterioration
2-4 brake timing solenoid
Shock occurs when select lever is moved from “D” to “1” range.TCM
Throttle position sensor
ATF temperature sensor
Line pressure duty solenoid
Control valve
ATF deterioration
2-4 brake duty solenoid
2-4 brake timing solenoid
Low clutch timing solenoid Symptom Problem parts
Page 2573 of 2870
4AT(H4SO)-114
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Symptom Related Diagnostic
Shock occurs when select lever is moved from “2” to “1” range.TCM
Throttle position sensor
ATF temperature sensor
Line pressure duty solenoid
Control valve
Low & reverse clutch
ATF deterioration
2-4 brake duty solenoid
2-4 brake timing solenoid
Low clutch timing solenoid
Shock occurs when accelerator pedal is released at medium
speeds.TCM
Throttle position sensor
ATF temperature sensor
Line pressure duty solenoid
Control valve
Lock-up damper
Engine performance
2-4 brake duty solenoid
2-4 brake timing solenoid
Low clutch timing solenoid
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” phenomenon).TCM
Front vehicle speed sensor
Rear vehicle speed sensor
Throttle 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
FWD switch
Throttle position sensor
ATF temperature sensor
Control valve
Transfer clutch
Transfer valve
Transfer pipe
Transfer duty solenoid
Vehicle is not set in FWD mode.TCM
FWD switch
Transfer clutch
Transfer valve
Transfer duty solenoid
Select lever is hard to move. Select cable
Select lever
Detente spring
Manual plate
Select lever is too hard to move (unreasonable resistance). Detente spring
Manual plate Symptom Problem parts
Page 2589 of 2870
4AT(H4DOTC)-13
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Transmission Control Module (TCM) I/O Signal
Accelerator pedal position
sensor (2.5 L model)
B55 19Throttle fully closed. More than 0.2
—
Throttle position sensor (2.0
L model)Throttle fully open. Less than 4.6
Accelerator pedal position
sensor power supply (2.5 L
model)B55 10 Ignition switch ON
(with engine OFF)Approx. 5 —
Throttle position sensor
power supply (2.0 L model)
ATF temperature sensor B55 21ATF temperature 20°C
(68°F)3.5 — 4.3 3.9 k — 4.7 k
ATF temperature 80°C
(176°F)1.5 — 1.9 500 — 600
Rear vehicle speed sensor B55 24Vehicle speed at least
20 km/h (12 MPH)More than 2 (AC range) —
Front vehicle speed sensor B55 6Vehicle stopped. 0
450 — 750
Vehicle speed at least
20 km/h (12 MPH)More than 1 (AC range)
Torque converter turbine
speed sensorB55 7Engine idling after warm-
up. (“D” range)0
450 — 750
Engine idling after warm-
up. (“N” range)More than 1 (AC range)
Vehicle speed output signal B56 1Vehicle speed at least
10 km/h (6 MPH)Less than 1←
→More than 4—
Engine speed signal B55 13Ignition switch ON
(with engine OFF)Less than 1
—
Ignition switch ON
(with engine ON)More than 5
(AC range)
Line pressure linear solenoid B56 20Ignition switch ON
(with engine OFF)
“R” range and throttle fully
closed after warm-up.5 — 7
4.0 — 8.0
Ignition switch ON
(with engine OFF)
“R” range and throttle fully
open after warm-up.3 — 5
Lock-up duty solenoid B56 5When lock up occurs. More than 10.5
2.0 — 4.5
When lock up is released. Less than 1
Transfer duty solenoid B56 4“P” or “N” range Less than 1
2.0 — 4.5
Throttle fully open and with
select lever in 1st gear.More than 10.5
2-4 brake duty solenoid B56 6“P” or “N” range More than 10.5
2.0 — 4.5
2nd or 4th gear Less than 1
High clutch duty solenoid B56 83rd or 4th gear Less than 1
2.0 — 4.5
“P” or “N” range More than 10.5
Low clutch duty solenoid B56 91st or 2nd gear Less than 1
2.0 — 4.5
“P” or “N” range More than 10.5
Low & reverse duty solenoid B56 7“P” or “N” range More than 10.5
2.0 — 4.5
“1” range More than 5
HOLD switch B54 2HOLD switch ON Less than 1
—
HOLD switch OFF More than 10.5 Check with ignition switch ON.
ItemConnector
No.Terminal No. Measuring conditions Voltage (V)Resistance
to chassis
ground (Ω)
Page 2592 of 2870
4AT(H4DOTC)-16
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Subaru Select Monitor
6) Using the scroll key, move the display screen up or down until desired data is shown.
A list of the support data is shown in the following table.
NOTE:
For detailed operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION MANUAL”.
Contents Display Unit of measure
Battery voltage Battery Voltage V
Rear vehicle speed sensor signal Rear Wheel Speed km/h or MPH
Front vehicle speed sensor signal Front Wheel Speed km/h or MPH
Engine speed signal Engine Speed rpm
ATF temperature signal ATF Temp.°C or °F
Throttle position signal Throttle Sensor Voltage V
Gear position Gear Position —
Line pressure control duty ratio Line Pressure Duty Ratio %
Lock up clutch control duty ratio Lock Up Duty Ratio %
Transfer clutch control duty ratio Transfer Duty Ratio %
Power supply for throttle position sensor Throttle Sensor Power V
Torque converter turbine speed signal Turbine Revolution Speed rpm
2-4 brake timing pressure control duty ratio Brake Clutch Duty Ratio %
Low clutch duty ratio L/C Duty %
High clutch duty ratio H/C Duty %
Low & reverse brake duty ratio L&R/B Duty %
Throttle position Throttle position %
Accelerator pedal position Accel. Opening Angle %
Cruise control system Cruise Control Signal ON or OFF
Automatic transmission fluid temperature lamp ATF Temperature Lamp ON or OFF
Stop light switch signal Stop Light Switch ON or OFF
ABS signal ABS Signal ON or OFF
Parking range signal P Range Signal ON or OFF
Neutral range signal N Range Signal ON or OFF
Reverse range signal R Range Signal ON or OFF
Drive range signal D Range Signal ON or OFF
3rd range signal 3rd Range Signal ON or OFF
2nd range signal 2nd Range Signal ON or OFF
1st range signal 1st Range Signal ON or OFF
AT diagnosis indicator lamp Diagnosis Lamp ON or OFF
POWER switch signal POWER Switch ON or OFF
HOLD switch signal HOLD Switch ON or OFF
FWD switch signal FWD SW ON or OFF
Shift lock solenoid signal Shift Lock solenoid ON or OFF
Page 2606 of 2870
4AT(H4DOTC)-30
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
12.List of Diagnostic Trouble Code (DTC)
A: LIST
DTC Item Diagnosis content Reference
P0705Transmission Range Sen-
sor Circuit (PRNDL Input)Inhibitor switch malfunction, open or
short circuit
Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
P0712Transmission Fluid Temper-
ature Sensor Circuit Low
InputATF temperature sensor malfunction,
open input signal circuit
TURE SENSOR CIRCUIT LOW INPUT,
Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
P0713Transmission Fluid Temper-
ature Sensor Circuit High
InputATF temperature sensor malfunction,
short input signal circuit
TURE SENSOR CIRCUIT HIGH INPUT,
Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
P0715Input/Turbine Speed Sensor
CircuitTorque converter turbine speed sen-
sor malfunction, open or short input
signal circuit
CIRCUIT, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>
P0719Torque Converter/Brake
Switch “B” Circuit Low Brake switch malfunction, open input
signal circuit
SWITCH “B” CIRCUIT LOW, Diagnostic
Procedure with Diagnostic Trouble Code
(DTC).>
P0720Output Speed Sensor Cir-
cuitFront vehicle speed sensor malfunc-
tion, open or short input signal circuit
Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
P0724Torque Converter/Brake
Switch “B” Circuit HighBrake switch malfunction, short input
signal circuit
SWITCH “B” CIRCUIT HIGH, Diagnostic
Procedure with Diagnostic Trouble Code
(DTC).>
P0725 Engine Speed Input CircuitOpen or short engine speed output
signal circuit
nostic Procedure with Diagnostic Trouble
Code (DTC).>
P0731 Gear 1 Incorrect Ratio Vehicle speed sensor, torque con-
verter turbine speed sensor, or con-
trol valve malfunction
tic Procedure with Diagnostic Trouble
Code (DTC).>
P0732 Gear 2 Incorrect Ratio Vehicle speed sensor, torque con-
verter turbine speed sensor, or con-
trol valve malfunction
tic Procedure with Diagnostic Trouble
Code (DTC).>
P0733 Gear 3 Incorrect Ratio Vehicle speed sensor, torque con-
verter turbine speed sensor, or con-
trol valve malfunction
tic Procedure with Diagnostic Trouble
Code (DTC).>
P0734 Gear 4 Incorrect Ratio Vehicle speed sensor, torque con-
verter turbine speed sensor, or con-
trol valve malfunction
tic Procedure with Diagnostic Trouble
Code (DTC).>