Subaru Legacy IV (2008 year). Manual — part 1157

CC(diag)-10

Diagnostics with Phenomenon

CRUISE CONTROL SYSTEM (DIAGNOSTICS)

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.

9

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

(1) Perform the real-time
diagnosis.

Check the input signal of cruise control system.

(2) Check the neutral posi-
tion switch.

<Ref. to CC(diag)-19, 14, Diagnostic Procedure with
Cancel Code.> <Ref. to 4AT-46, INSPECTION, Inhibitor
Switch.>

10

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

(1) Perform the real-time
diagnosis.

Check the input signal of cruise control system.

(2) Check clutch switch.

<Ref. to CC(diag)-17, 13, Diagnostic Procedure with
Cancel Code.> <Ref. to CL-37, CLUTCH SWITCH (WITH
CRUISE CONTROL), INSTALLATION, Clutch Switch.>

Step

Check

Yes

No

1

CHECK CRUISE INDICATOR LIGHT AND
CRUISE SET INDICATOR LIGHT.
1) Perform the self-diagnosis of combination
meter. <Ref. to IDI-5, SELF-DIAGNOSIS,
INSPECTION, Combination Meter System.>
2) Check the cruise indicator light and cruise
set indicator light if they illuminate.

Do the cruise indicator light and
cruise set indicator light illumi-
nate?

Go to step 2.

Replace the meter
case assembly.
<Ref. to IDI-22,
Combination
Meter.>

2

CHECK DTC OF LAN COMMUNICATION
CIRCUIT.
1) Complete self-diagnosis, and turn the igni-
tion switch to ON again.
2) Read the DTC of body integrated unit using
Subaru Select Monitor.

Is DTC of Low-speed CAN dis-
played?

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

Replace the ECM.
<Ref. to
FU(H4SO)-39,
Engine Control
Module (ECM).>
<Ref. to
FU(H4DOTC)-52,
Engine Control
Module (ECM).>
<Ref. to
FU(H6DO)-38,
Engine Control
Module (ECM).>

Phenomenon

Check item

Reference

CC(diag)-11

List of Cancel Code

CRUISE CONTROL SYSTEM (DIAGNOSTICS)

7. List of Cancel Code

A: LIST

NOTE:
• The cancel code is registered even when cancel is performed intentionally by the driver.
• Cancel codes are cleared if the ignition switch is turned to OFF.
• If a different cancel code is input after a cancel code (latest code) has been input, the latest code is over-
written.
• If the cruise indicator light is flashing, a malfunction is occurring in the system or cruise control related
switch. The cancel code at this time is saved even after ignition switch OFF as a memory code of a past mal-
function.
• To display a cancel code, use the Subaru Select Monitor to read the code after the cruise control is deac-
tivated during a driving test.

Cancel

code

Item

Contents of diagnosis

Note

11

Main Switch

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

This code is displayed without
operating the main switch. <Ref. to
CC(diag)-13, 11, Diagnostic Proce-
dure with Cancel Code.>

12

Stop Light & Brake Switch

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

This code is displayed without
depressing the brake pedal. <Ref.
to CC(diag)-15, 12, Diagnostic Pro-
cedure with Cancel Code.>

13

Clutch Switch

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

This code is displayed without
depressing the clutch pedal. <Ref.
to CC(diag)-17, 13, Diagnostic Pro-
cedure with Cancel Code.>

14

Neutral Position Switch

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

This code is displayed without
shifting to neutral position. <Ref. to
CC(diag)-19, 14, Diagnostic Proce-
dure with Cancel Code.>

15

Cancel Switch

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

This code is displayed without
operating the cancel switch. <Ref.
to CC(diag)-22, 15, Diagnostic Pro-
cedure with Cancel Code.>

16

Ignition Switch

Ignition switch is turned to OFF, and then the cruise
control is released.

This code is displayed without
operating the ignition switch. <Ref.
to CC(diag)-23, 16, Diagnostic Pro-
cedure with Cancel Code.>

21

Cruise control switch mal-
function when ignition
switch is turned to ON

When the ignition switch is turned to ON, each
switch of cruise control command switch is already
turned to ON.

This code is displayed when the
ignition switch is turned to ON with-
out operating the cruise control
command switch. <Ref. to
CC(diag)-23, 21, Diagnostic Proce-
dure with Cancel Code.>

22

Abnormality of change in
vehicle speed

Malfunction of vehicle speed signal variation is
detected.

<Ref. to CC(diag)-24, 22, Diagnos-
tic Procedure with Cancel Code.>

24

Cruise Control Related
Switch Malfunction

Open circuit of the cruise control switch is detected
during cruise driving. (The system is judged as
model without cruise control.)

This code is displayed with normal
operation. <Ref. to CC(diag)-25,
24, Diagnostic Procedure with
Cancel Code.>

25

Brake Switch Input Circuit
Malfunction

Malfunction of brake switch input circuit in ECM is
detected.

<Ref. to CC(diag)-25, 25, Diagnos-
tic Procedure with Cancel Code.>

31

Abnormal engine speed
Signal

• Abnormal increase of engine speed is detected.
• Gear is placed in Neutral, 1st or Reverse position.

Cruise in 2nd shift position or
more. <Ref. to CC(diag)-25, 31,
Diagnostic Procedure with Cancel
Code.>

CC(diag)-12

List of Cancel Code

CRUISE CONTROL SYSTEM (DIAGNOSTICS)

32

Out of vehicle speed
range of cruise control
operation

• Controlled vehicle speed decreased under the
limit during cruising.
• Set operation was performed at vehicle speed
unavailable for setting.
• RESUME operation was performed without mem-
orized vehicle speed.

This code is displayed, though the
vehicle speed is increased to the
speed available for cruise set and
set operation was performed
again. <Ref. to CC(diag)-25, 32,
Diagnostic Procedure with Cancel
Code.>

34

Prohibition of cruise con-
trol at continuing big
Accel. angle

The vehicle has been driven at higher speed than
set vehicle speed for an abnormally long time
(approximately 10 minutes) during cruise driving.

This code is displayed when driv-
ing for a long period of time at
higher speed than appropriate
cruise set vehicle speed by operat-
ing accelerator pedal. In this case,
the cruise setting is deactivated.
<Ref. to CC(diag)-25, 34, Diagnos-
tic Procedure with Cancel Code.>

35

Prohibition when vehicle
speed feedback is impos-
sible

Set vehicle speed cannot be kept because of some
reasons (steep uphill, parking brake, abnormal
decrease of engine output, etc.) during cruise driv-
ing.

This code is displayed when driv-
ing condition is not suitable for
cruise control. Perform cruise set
operation again after clearing the
possible cause. <Ref. to CC(diag)-
25, 35, Diagnostic Procedure with
Cancel Code.>

41

VDC/TCS Operating

Vehicle dynamics control (VDC) or TCS is operated
during cruise driving or cruise setting.

This code is displayed when driv-
ing condition is not suitable for
cruise control. Perform cruise set
operation again after clearing the
possible cause. <Ref. to CC(diag)-
25, 41, Diagnostic Procedure with
Cancel Code.>

43

ABS/VDC Failure

ABS or Vehicle dynamics control (VDC) system
malfunction is detected during cruise driving or
cruise setting.

<Ref. to CC(diag)-25, 43, Diagnos-
tic Procedure with Cancel Code.>

44

Body Integrated unit Fail-
ure

Body integrated unit system malfunction is detected
during cruise driving or cruise setting.

<Ref. to CC(diag)-26, 44, Diagnos-
tic Procedure with Cancel Code.>

45

Meter Failure

Combination meter malfunction is detected during
cruise driving or cruise setting.

<Ref. to CC(diag)-26, 45, Diagnos-
tic Procedure with Cancel Code.>

61

Brake switch abnormal

Malfunction in the stop light & brake switch is
detected.

<Ref. to CC(diag)-26, 61, Diagnos-
tic Procedure with Cancel Code.>

62

Neutral switch Failure

Neutral position switch malfunction is detected.

<Ref. to CC(diag)-26, 62, Diagnos-
tic Procedure with Cancel Code.>

63

Abnormality 1 of change
in vehicle speed

Malfunction of vehicle speed signal variation is
detected.

<Ref. to CC(diag)-26, 63, Diagnos-
tic Procedure with Cancel Code.>

64

Engine Sensor Failure

Malfunction related to engine is detected.

<Ref. to CC(diag)-26, 64, Diagnos-
tic Procedure with Cancel Code.>

65

Abnormality 1 of switches
related to cruise control 1

Cruise control command switch malfunction is
detected. (When the switch is pressed ON for a
long time (approximately two minutes), stuck ON
condition is detected.)

<Ref. to CC(diag)-26, 65, Diagnos-
tic Procedure with Cancel Code.>

66

Cruise Control Calcula-
tion Error

Cruise control calculation (microcomputer) malfunc-
tion is detected.

<Ref. to CC(diag)-26, 66, Diagnos-
tic Procedure with Cancel Code.>

Cancel

code

Item

Contents of diagnosis

Note

CC(diag)-13

Diagnostic Procedure with Cancel Code

CRUISE CONTROL SYSTEM (DIAGNOSTICS)

8. Diagnostic Procedure with Cancel Code

A: 11

Detected when main switch is pressed or when main switch related malfunction occurs.
TROUBLE SYMPTOM:
• Cruise control cannot be set. (Cancelled immediately.)
• Cruise control cannot be released.
WIRING DIAGRAM:

CC-00601

B136

9

30

29

2

3

8

2

31

20

19

18

22

21

10

12

11

14

24

34

33

27

26

16

1

2

3

4

5

6

13

23

15

25

8

7

17

35

ST3

SET/
COAST
SWITCH

RESUME/
ACCEL
SWITCH

CANCEL
SWITCH

B136

C:

ECM

B24

C6

6

B68

7

8

4

10

11

B12

*

*

1 2 3 4
5 6 7 8

ST3

C:

B122

B122

B135

B:

*

:

B135

5

6

7

8

2

1

9

4

3

10

24

22 23

25

11 12 13 14 15

26 27

28

16 17 18 19

20 21

29 30 31

32 33

34 35

B:

MAIN
SWITCH

CRUISE CONTROL
COMMAND SWITCH

STEERING ROLL
CONNECTOR

TERMINAL No. OPTIONAL
ARRANGEMENT

B68

1 2 3 4

9 10 11 12 13 14

5 6 7

8

1 2 3 4 5 6 7 8