2004 SUBARU FORESTER turn signal

CC(H4SO)-8
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
Cruise Control Module I/O Signal
B: WIRING DIAGRAM

Brake switch/Clutch switch
(MT model)16 Leave clutch pedal released (MT model), while cruise control main switch is
turned ON.
Then check that;
 Battery voltage is present when brake pedal is released.
 “0” volt is present when brake pedal is depressed.
Additionally only in MT model, keep the cruise control main switch to ON and
leave brake pedal released.
Then check that;
 Battery voltage is present when clutch pedal is released.
 “0” volt is present when clutch pedal is depressed.
Data link connector 17 —
Data link connector 18 —
Vehicle speed sensor (MT
model)
TCM (AT model)19 Lift-up the vehicle until all four wheels are raised off ground, and then rotate any
wheel manually.
Approx. “5” and “0” volt pulse signals are alternately input to cruise control mod-
ule.
Stop light switch 20 Turn ignition switch to OFF.
Then check that;
 Battery voltage is present when brake pedal is depressed.
 “0” volt is present when brake pedal is released.
NOTE:
Voltage at terminals 5, 7, 13 and 14 cannot be checked unless vehicle is driving by cruise control operation.Content Terminal No. Measuring conditions and I/O signals (ignition switch ON and engine idling)

CC(H4SO)-9
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
Subaru Select Monitor
5. Subaru Select Monitor
A: OPERATION
1. GENERAL
The on-board diagnosis function of the cruise control
system uses an external Subaru Select Monitor.
The on-board diagnosis function operates in two cat-
egories, which are used depending on the type of
problems;
1) Cruise cancel conditions diagnosis:
(1) This category of diagnosis requires actual
vehicle driving in order to determine the cause,
(as when cruise speed is cancelled during driv-
ing although cruise cancel condition is not en-
tered).
(2) Cruise control module memory stores the
cancel condition (Code No.) which occurred dur-
ing driving. When there are plural cancel condi-
tions (Code No.), they are shown on the Subaru
Select Monitor.
CAUTION:
 The cruise control memory stores not only the
cruise “cancel” which occurred (although “can-
cel” operation is not entered by the driver), but
also the “cancel” condition input by the driver.
 The content of memory is cleared when igni-
tion switch or cruise main switch is turned OFF.
2) Real-time diagnosis:
The real-time diagnosis function is used to deter-
mine whether or not the input signal system is in
good order, according to signal emitted from
switches, sensors, etc.
(1) Vehicle cannot be driven at cruise speed be-
cause problem occurs in the cruise control sys-
tem or its associated circuits.
(2) Monitor the signal conditions from switches
and sensors.
2. CRUISE CANCEL CONDITIONS DIAG-
NOSIS
1) Prepare the Subaru Select Monitor kit.
2) Connect the diagnosis cable to Subaru Select
Monitor.
3) Insert the cartridge into Subaru Select Monitor.
RATION TOOL, General Description.>
4) Connect the Subaru Select Monitor to data link
connector.
(1) Data link connector is located in the lower
portion of the instrument panel (on the driver’s
side).
(2) Connect the diagnosis cable to data link con-
nector.
5) Start the engine and turn the cruise control main
switch to ON.
CC-00028
CC-00029
ME-00325

CC(H4SO)-27
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
7. List of Diagnostic Trouble Code (DTC)
A: LIST
DTC Item Contents of diagnosis Reference
21 Inner relay is seized. Cruise control module inner relay is seized when main
switch is OFF. DTC 21, 24, 25 AND 2A
CRUISE CONTROL
MODULE BUILT-IN
RELAY, CPU RAM, Diag-
nostic Procedure with
Diagnostic Trouble Code
(DTC).>
22 Vehicle speed sensor Vehicle speed signal changes more than 10 km/h (6
MPH) within 350 ms. DTC 22 VEHICLE SPEED
SENSOR, Diagnostic Pro-
cedure with Diagnostic
Trouble Code (DTC).>
24 Cruise control module is
abnormal.Two vehicle speed values stored in cruise control module
memory are not the same. DTC 21, 24, 25 AND 2A
CRUISE CONTROL
MODULE BUILT-IN
RELAY, CPU RAM, Diag-
nostic Procedure with
Diagnostic Trouble Code
(DTC).>
25 Cruise control module is
abnormal.Two output values stored in cruise control module mem-
ory are not the same. DTC 21, 24, 25 AND 2A
CRUISE CONTROL
MODULE BUILT-IN
RELAY, CPU RAM, Diag-
nostic Procedure with
Diagnostic Trouble Code
(DTC).>
28 Wiring harness opened. Open wiring harness circuit is detected via control mod-
ule relay when main switch is ON. DTC 28 WIRING HAR-
NESS OPENED., Diag-
nostic Procedure with
Diagnostic Trouble Code
(DTC).>
35 Motor drive system is
abnormal. Motor output circuit is open or shorted.
 Motor drive circuit is open or shorted. DTC 35 AND 36 ACTUA-
TOR MOTOR, Diagnostic
Procedure with Diagnos-
tic Trouble Code (DTC).>
36 Trouble of motor turning
speedMotor turning speed is low. DTC 35 AND 36 ACTUA-
TOR MOTOR, Diagnostic
Procedure with Diagnos-
tic Trouble Code (DTC).>
37 Motor clutch drive system
is abnormal. Motor clutch output circuit is open or shorted.
 Motor clutch drive circuit is open or shorted. DTC 37 ACTUATOR
MOTOR CLUTCH, Diag-
nostic Procedure with
Diagnostic Trouble Code
(DTC).>

CC(H4SO)-29
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
8. Diagnostic Procedure with
Diagnostic Trouble Code
(DTC)
A: DTC 21, 24, 25 AND 2A CRUISE
CONTROL MODULE BUILT-IN RE-
LAY, CPU RAM
DIAGNOSIS:
 Poor welding of built-in relay of cruise control mod-
ule.
 Failure of built-in CPU RAM of cruise control mod-
ule.
TROUBLE SYMPTOM:
 Cruise control is canceled and memorized cruise
speed is also canceled.
 Once cruise control is canceled, cruise control
cannot be set until the ignition switch and cruise
control main switch turns OFF, and then turns ON
again.
NOTE:
Check input/output signal and vehicle speed signal
with select monitor. When signals are in good con-
dition, failure is in cruise control module. (Check
the power supply and ground conditions of cruise
control module.)

CC(H4DOTC 2.5)-6
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
Engine Control Module (ECM) I/O Signal
4. Engine Control Module (ECM) I/O Signal
A: ELECTRICAL SPECIFICATION
ContentTe r m i n a l
No.Measuring conditions and I/O signals (ignition switch ON and engine idling)
Clutch switch A1 Battery voltage is present when the clutch pedal is released.
 “0 V” volt is present when the clutch pedal is depressed.
Cruise indicator light A15 Battery voltage is present when the main switch is turned to OFF.
 “0 V” volt is present when the main switch is turned to ON.
Main power
supplyVB (CONTROL 1)
VB (CONTROL 2)B6
B5 Battery voltage is present when the main power supply is turned to ON.
 “0 V” volt is present when the main power supply is turned to OFF.
Vehicle speed signal B26Lift-up the vehicle until all four wheels are raised off the ground, and then rotate
any wheel manually. Approx. “5 V” and “0 V” pulse signals are alternately input to
ECM.
SET/COAST switch C11 Battery voltage is present when the command switch is turned to SET/COAST
position.
 “0 V” volt is present when the command switch is released.
RESUME/ACCEL switch C10 Battery voltage is present when the command switch is turned to RESUME/
ACCEL position.
 “0 V” volt is present when the command switch is released.
Brake switch 1
(Brake switch)C9 Battery voltage is present when the brake pedal is released.
 “0 V” volt is present when the brake pedal is depressed.
Brake switch 2
(Stop light switch)C8 Battery voltage is present when the brake pedal is depressed.
 “0 V” volt is present when the brake pedal is released.
Main switch C7 Battery voltage is present while the main switch is depressed or is turned to
ON.
 “0 V” volt is present when the main switch is turned to OFF.
GroundGND (CONTROL 1)
GND (CONTROL 2)D2
D1—
Ignition switch D15 Battery voltage is present with the ignition switch is turned to ON.
 “0 V” volt is present when the ignition switch is turned to OFF.
Neutral switch (MT model) D9 Battery voltage is present when the shift lever is in anywhere except neutral
position.
 “0 V” volt is present when the shift lever is in neutral position.
Inhibitor switch (AT model) D9 “0 V” volt is present when the select lever is in anywhere except N or P posi-
tion.
 “5 V” volt is present when the select lever is in N or P position.
CC-00197
B134
9
30 29 28 32 3120 19 18 22 2110 12 1114
24
34 3327 2617 16123456713
23 15
258
B135
9
30 29 28
323120 22 2110 12 1114
24
35
3327 2617 16123456713
23 15
258
B136
9
30 29 28
32 3120 19 18 22 2110 12 1114
24
34 3327 261612345613
23 15
258
B137
9
29 2820 19 18 22
2110 12
1114
2417 16123456713
23 15
2581819
34
7173530 3127 26
To D: To C: To B: To A:

CC(H4DOTC 2.5)-8
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
Subaru Select Monitor
5. Subaru Select Monitor
A: OPERATION
1. GENERAL
The on-board diagnosis function of the cruise con-
trol system uses the Subaru Select Monitor.
The on-board diagnosis function operates in two
categories, which are used depending on the type
of problems;
1) Cruise cancel conditions diagnosis:
(1) This category of diagnosis requires actual ve-
hicle driving in order to determine the cause, (as
when cruise speed is cancelled during driving al-
though cruise cancel condition is not entered).
(2) Cruise control memory of ECM stores the
cancel condition (Code No.) which occurred dur-
ing driving. When there are plural cancel condi-
tions (Code No.), they are shown on the Subaru
Select Monitor.
CAUTION:
 The cruise control memory stores not only the
cruise “cancel” which occurred (although “can-
cel” operation is not entered by the driver), but
also the “cancel” condition input by the driver.
 The content of memory is cleared when igni-
tion switch or cruise main switch is turned OFF.
2) Real-time diagnosis:
The real-time diagnosis function is used to deter-
mine whether or not the input signal system is in
good order, according to signal emitted from
switches, sensors, etc.
(1) Vehicle cannot be driven at cruise speed be-
cause problem occurs in the cruise control sys-
tem or its associated circuits.
(2) Monitor the signal conditions from switches
and sensors.
2. CRUISE CANCEL CONDITIONS DIAG-
NOSIS
1) Prepare the Subaru Select Monitor kit.
2) Connect the diagnosis cable to Subaru Select
Monitor.3) Insert the cartridge into Subaru Select Monitor.
PREPARATION TOOL, General Description.>
4) Connect the Subaru Select Monitor to data link
connector.
(1) Data link connector is located in the lower
portion of the instrument panel (on the driver’s
side).
(2) Connect the diagnosis cable to data link
connector.
5) Start the engine and turn the cruise control main
switch to ON.
6) Turn the Subaru Select Monitor switch to ON.
7) On the «Main Menu» display screen, select the
{2. Each System Diagnosis} and press [YES] key.
Select the {Engine} on the System Selection dis-
play screen and press [YES] key. Press [YES] key
after the engine type displayed.
8) Drive the vehicle at least 40 km/h (25 MPH) with
cruise speed set.
CC-00028
(1) Power switch
CC-00029
CC-00134
CC-00045
(1)

CC(H4DOTC 2.5)-14
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
21 Cruise control switch is
abnormal when the igni-
tion switch is turned to ON.Each switch of cruise control command switch has
already been ON when the ignition switch is turned to
ON.This DTC is indicated
without operating the main
switch. CC(H4DOTC 2.5)-16,
DTC 11, 15, 21 AND 24
CRUISE CONTROL
COMMAND SWITCH,
Diagnostic Procedure with
Diagnostic Trouble Code
(DTC).>
22 Vehicle speed variation is
abnormal.Abnormality of vehicle speed variation is detected. 2.5)-26, DTC 22 AND 32
VEHICLE SPEED SEN-
SOR, Diagnostic Proce-
dure with Diagnostic
Trouble Code (DTC).>
23 Engine-related sensor is
abnormal.Abnormality related to engine is detected. 2.5)-2, Basic Diagnostic
Procedure.>
24 Cruise control-related
switch is abnormal.Abnormality of command switch is detected. (Open cir-
cuit is detected when continuing to be ON for an
extremely long time [approx. two minutes].)This DTC is indicated with
normal operation. CC(H4DOTC 2.5)-16,
DTC 11, 15, 21 AND 24
CRUISE CONTROL
COMMAND SWITCH,
Diagnostic Procedure with
Diagnostic Trouble Code
(DTC).>
25 Brake switch input circuit
is abnormal.Abnormality of brake switch input circuit in ECM is
detected. 2.5)-18, DTC 12 AND 25
STOP LIGHT SWITCH
AND BRAKE SWITCH,
Diagnostic Procedure with
Diagnostic Trouble Code
(DTC).>
26 Engine speed signal.  Abnormal increase of engine speed is detected.
 Gear is shifted to neutral, 1st or reverse position.Cruise with more than 2nd
shift position.
32 Out of vehicle speed range
of cruise control operation. Vehicle speed becomes under the control limit during
cruise driving.
 Set operation is conducted out of vehicle speed range
for setting
 RESUME operation is conducted without vehicle
speed memory.This DTC is also indicated
when increasing the
speed to the cruise set
available vehicle speed
and conducting the set
operation again. CC(H4DOTC 2.5)-26,
DTC 22 AND 32 VEHICLE
SPEED SENSOR, Diag-
nostic Procedure with
Diagnostic Trouble Code
(DTC).>
33 Prohibition of WAIT after
acceleration operation.Vehicle speed becomes over the control limit during
cruise driving.This DTC is indicated
when running at the high
speed which is not suit-
able for cruise control. In
this case, conduct the
cruise set operation again
after decreasing the
speed to the cruise set
available vehicle speed. DTC Item Contents of diagnosis Reference

FU(H4SO)-29
FUEL INJECTION (FUEL SYSTEM)
Throttle Position Sensor
8. Throttle Position Sensor
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Disconnect the connector from the throttle posi-
tion sensor.
3) Remove the throttle position sensor holding
screws, and remove it.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
1.6 N
⋅m (0.16 kgf-m, 1.2 ft-lb)
CAUTION:
When installing throttle position sensor, adjust
to the specified data.
C: ADJUSTMENT
1) Turn the ignition switch to OFF.
2) Loosen the throttle position sensor holding
screws.
3) When using voltage meter;
(1) Take out the ECM.
(2) Turn the ignition switch to ON.
(3) Adjust the throttle position sensor to the
proper position to allow the voltage signal to the
ECM to be in specification.
Connector & terminal / Specified voltage
(B135) No. 13 (+) — (B135) No. 19 (
−) / 0.45 —
0.55 V
[Fully closed.]
FU-00009
FU-00289
FU-00290
FU-00290
FU-00291
FU-00520
4
1 526
18 1516
7
891011
17
19
20121314
B135
3
2122232425262728