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