Subaru Legacy (2005 year). Manual - part 1018

 

  Index      Subaru     Subaru Legacy - service repair manual 2005 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  1016  1017  1018  1019   ..

 

 

Subaru Legacy (2005 year). Manual - part 1018

 

 

CC(diag)-9

CRUISE CONTROL SYSTEM (DIAGNOSTICS)

Subaru Select Monitor

9) If the cruise speed is canceled by itself (without
doing any cancel operations), DTC will display on
the screen when selecting the {Check Cancel
Code} and pressing the [YES] key on the engine
malfunction diagnosis display screen.

CAUTION:
• When performing diagnostics, observe the
legal speed of the road.
• DTC will also displayed when cruise control
cancel is effected by driver. Do not confuse.
• Put a co-worker in the vehicle to assist the di-
agnosis during driving.

NOTE:
DTC will be cleared by turning ignition switch or
cruise control main switch to OFF.

3. REAL-TIME DIAGNOSIS

1) Connect the Subaru Select Monitor.
2) Turn the ignition switch and cruise control main
switch to ON.
3) Turn the Subaru Select Monitor power switch to
ON.
4) On the  « Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
5) On the  «System Selection Menu» display
screen, select the {Engine} and press the [YES]
key.
6) Press the [YES] key after the information of en-
gine type is displayed.
7) On the  «Cruise Control Diagnosis» display
screen, select the {Current Data Display/Save},
and then press the [YES] key.
8) Make sure that normal indication is displayed
when operated as follows:
• Depress/release the brake pedal. (Stop light
switch and brake switch turn ON.)
• Turn the main switch to ON.
• Turn the “CANCEL” switch to ON.
• Turn ON the “SET/COAST” switch.
• Turn ON the “RESUME/ACCEL” switch.
• Depress or release the clutch pedal.
• Place the shift lever in any position except neu-
tral.

NOTE:
• For details concerning operation procedure, re-
fer to the SUBARU SELECT MONITOR OPERA-
TION MANUAL.
• For DTC, refer to “List of Diagnostic Trouble
Code (DTC)”. <Ref. to CC(diag)-12, List of Diag-
nostic Trouble Code (DTC).>

CC(diag)-10

CRUISE CONTROL SYSTEM (DIAGNOSTICS)

Diagnostics with Phenomenon

6. Diagnostics with Phenomenon

A: DIAGNOSTIC PROCEDURE WITH PHENOMENON

Phenomenon

Checking item

Reference

1

Cruise control main switch is 
not turned to ON. (Cruise 
indicator light does not illumi-
nate.)

(1) Check the cruise indicator 
light.

<Ref. to CC(diag)-11, CHECK CRUISE INDICATOR 
LIGHT AND CRUISE SET INDICATOR LIGHT., Diagnos-
tics with Phenomenon.>

(2) Check the cruise control 
command switch.

<Ref. to CC(diag)-15, DTC 11, 15, 21 AND 24 CRUISE 
CONTROL COMMAND SWITCH, Diagnostic Procedure 
with Diagnostic Trouble Code (DTC).>

2

Cruise control cannot be set.

(1) Check the cruise control 
command switch.

<Ref. to CC(diag)-15, DTC 11, 15, 21 AND 24 CRUISE 
CONTROL COMMAND SWITCH, Diagnostic Procedure 
with Diagnostic Trouble Code (DTC).>

(2) Check the stop light switch 
and brake switch.

<Ref. to CC(diag)-18, DTC 12 AND 25 STOP LIGHT 
SWITCH AND BRAKE SWITCH, Diagnostic Procedure 
with Diagnostic Trouble Code (DTC).>

(3) Check the clutch switch.

<Ref. to CC(diag)-21, DTC 13 CLUTCH SWITCH, Diag-
nostic Procedure with Diagnostic Trouble Code (DTC).>

(4) Check the neutral posi-
tion switch.

<Ref. to CC(diag)-24, DTC 14 NEUTRAL POSITION 
SWITCH, Diagnostic Procedure with Diagnostic Trouble 
Code (DTC).>

(5) Check the vehicle speed 
sensor.

<Ref. to CC(diag)-32, DTC 22 AND 32 VEHICLE SPEED 
SENSOR, Diagnostic Procedure with Diagnostic Trouble 
Code (DTC).>

3

Cruise set indicator light does 
not illuminate.

Check the cruise set indicator 
light.

<Ref. to CC(diag)-11, CHECK CRUISE INDICATOR 
LIGHT AND CRUISE SET INDICATOR LIGHT., Diagnos-
tics with Phenomenon.>

4

Vehicle speed is not held 
within set speed 

±3 km/h (±2 

MPH).

Inspect the vehicle speed 
sensor.

<Ref. to CC(diag)-32, DTC 22 AND 32 VEHICLE SPEED 
SENSOR, Diagnostic Procedure with Diagnostic Trouble 
Code (DTC).>

5

Vehicle speed does not 
increase or does not return to 
set speed after RESUME/
ACCEL switch has been 
pressed.

Check the RESUME/ACCEL 
switch.

<Ref. to CC(diag)-15, DTC 11, 15, 21 AND 24 CRUISE 
CONTROL COMMAND SWITCH, Diagnostic Procedure 
with Diagnostic Trouble Code (DTC).>

6

Vehicle speed does not 
decrease after SET/COAST 
switch has been pressed.

Check the SET/COAST 
switch.

<Ref. to CC(diag)-15, DTC 11, 15, 21 AND 24 CRUISE 
CONTROL COMMAND SWITCH, Diagnostic Procedure 
with Diagnostic Trouble Code (DTC).>

7

Cruise control is not released 
after CANCEL switch has 
been pressed.

Check the CANCEL switch.

<Ref. to CC(diag)-15, DTC 11, 15, 21 AND 24 CRUISE 
CONTROL COMMAND SWITCH, Diagnostic Procedure 
with Diagnostic Trouble Code (DTC).>

8

Cruise control is not released 
after brake pedal has been 
depressed.

Check the stop light switch 
and brake switch.

<Ref. to CC(diag)-18, DTC 12 AND 25 STOP LIGHT 
SWITCH AND BRAKE SWITCH, Diagnostic Procedure 
with Diagnostic Trouble Code (DTC).>

9

Cruise control is not released 
after shifting to the neutral 
position.

Check the neutral position 
switch.

<Ref. to CC(diag)-24, DTC 14 NEUTRAL POSITION 
SWITCH, Diagnostic Procedure with Diagnostic Trouble 
Code (DTC).>

10

Cruise control is not released 
after clutch pedal has been 
depressed.

Check the clutch switch.

<Ref. to CC(diag)-21, DTC 13 CLUTCH SWITCH, Diag-
nostic Procedure with Diagnostic Trouble Code (DTC).>

CC(diag)-11

CRUISE CONTROL SYSTEM (DIAGNOSTICS)

Diagnostics with Phenomenon

B: CHECK CRUISE INDICATOR LIGHT AND CRUISE SET INDICATOR LIGHT.

TROUBLE SYMPTOM:
Cruise control can be set, but the cruise indicator light and cruise set indicator light do not illuminate.

Step

Check

Yes

No

1

CHECK CRUISE INDICATOR LIGHT AND 
CRUISE SET INDICATOR LIGHT.
1) Perform the self-diagnosis for combination 
meter. <Ref. to IDI-3, SELF-DIAGNOSIS, 
INSPECTION, Combination Meter System.>
2) Check the cruise indicator light and cruise 
set indicator light illuminate.

Does the cruise indicator light 
and cruise set indicator light 
illuminate?

Go to step 2.

Replace the meter 
case assembly. 
<Ref. to IDI-15, 
Combination 
Meter.>

2

CHECK LAN COMMUNICATION CIRCUIT 
ERROR DISPLAY.
1) Turn the ignition switch to ON again after 
completing self-diagnosis.
2) Check that communication error is dis-
played on the odo/trip meter in combination 
meter.

Is the error code “Er xx” dis-
played on odo/trip meter?

Check the LAN 
communication cir-
cuit. <Ref. to 
LAN(diag)-2, Basic 
Diagnostic Proce-
dure.>

Replace the ECM. 
<Ref. to FU(H4SO 
2.0)-34, Engine 
Control Module 
(ECM).> <Ref. to 
FU(H4SO 2.5)-37, 
Engine Control 
Module (ECM).> 
<Ref. to 
FU(H4DOTC)-34, 
Engine Control 
Module (ECM).> 
<Ref. to 
FU(H6DO)-34, 
Engine Control 
Module (ECM).>

CC(diag)-12

CRUISE CONTROL SYSTEM (DIAGNOSTICS)

List of Diagnostic Trouble Code (DTC)

7. List of Diagnostic Trouble Code (DTC)

A: LIST

DTC

Item

Contents of diagnosis

Reference

11

Main switch

Main switch of cruise control command switch is turned 
to OFF, and then the cruise control is released.

This DTC is indicated 
without operating the main 
switch. <Ref. to CC(diag)-
15, DTC 11, 15, 21 AND 
24 CRUISE CONTROL 
COMMAND SWITCH, 
Diagnostic Procedure with 
Diagnostic Trouble Code 
(DTC).>

12

Stop and brake switch

Stop light switch or brake switch is turned to ON, and 
then the cruise control is released.

This DTC is indicated 
without depressing the 
brake pedal. <Ref. to 
CC(diag)-18, DTC 12 
AND 25 STOP LIGHT 
SWITCH AND BRAKE 
SWITCH, Diagnostic Pro-
cedure with Diagnostic 
Trouble Code (DTC).>

13

Clutch switch

Clutch switch is turned to ON, and then the cruise control 
is released.

This DTC is indicated 
without depressing the 
clutch pedal. <Ref. to 
CC(diag)-21, DTC 13 
CLUTCH SWITCH, Diag-
nostic Procedure with 
Diagnostic Trouble Code 
(DTC).>

14

Neutral position switch

Neutral position switch is turned to ON, and then the 
cruise control is released.

This DTC is indicated 
without shifting to neutral 
position. <Ref. to 
CC(diag)-24, DTC 14 
NEUTRAL POSITION 
SWITCH, Diagnostic Pro-
cedure with Diagnostic 
Trouble Code (DTC).>

15

Cancel switch

Cancel switch is turned to ON, and then the cruise con-
trol is released.

This DTC is indicated 
without operating the can-
cel switch. <Ref. to 
CC(diag)-15, DTC 11, 15, 
21 AND 24 CRUISE CON-
TROL COMMAND 
SWITCH, Diagnostic Pro-
cedure with Diagnostic 
Trouble Code (DTC).>

16

Ignition switch

Ignition switch is turned to OFF, and then the cruise con-
trol is released.

This DTC is indicated 
without operating the igni-
tion switch. <Ref. to 
CC(diag)-29, DTC 16 
IGNITION SWITCH, Diag-
nostic Procedure with 
Diagnostic Trouble Code 
(DTC).>

 

 

 

 

 

 

 

Content   ..  1016  1017  1018  1019   ..