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Subaru Legacy IV (2008 year). Manual - part 1155
CC(diag)-2
Basic Diagnostic Procedure
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
Step
Check
Yes
No
1
CHECK MALFUNCTION INDICATOR LIGHT.
Make sure the malfunction indicator light illumi-
nates.
Does the malfunction indicator
light illuminate?
Go to step 5.
Go to step 2.
2
CHECK CRUISE INDICATOR LIGHT.
Make sure the cruise indicator light blinks.
Does the cruise indicator light
blink?
Go to step 5.
Go to step 3.
3
CHECK CRUISE CONTROL MAIN SWITCH
OPERATION.
Check cruise control main switch operation.
(Ensure the cruise indicator light illuminates.)
Is the cruise control main switch
turned on? (Does the cruise
indicator light illuminate?)
Go to step 4.
Go to phenome-
non 1. <Ref. to
CC(diag)-9, DIAG-
NOSTIC PROCE-
DURE WITH
PHENOMENON,
Diagnostics with
Phenomenon.>
4
CHECK CRUISE CONTROL SET OPERA-
TION.
Check the cruise control setting operation.
Can the cruise control be set
while driving at 40 km/h (25 MPH)
or more?
Go to step 7.
Go to step 6.
5
CHECK DTC.
Read all DTCs using the Subaru Select Monitor.
Is an engine or ABS/VDC
related DTC displayed?
Perform the diag-
nosis according to
DTC.
Go to phenome-
non 2. <Ref. to
CC(diag)-9, DIAG-
NOSTIC PROCE-
DURE WITH
PHENOMENON,
Diagnostics with
Phenomenon.>
6
CHECK CANCEL CODE.
Using the Subaru Select Monitor, read the can-
cel codes.
NOTE:
• Do not turn the ignition switch to OFF after the
cruise control is deactivated.
• Do not operate the cruise control command
switch after the cruise control is deactivated.
If the above is performed, the cancel code will
be cleared.
Is it possible to read the cancel
codes?
Perform the diag-
nosis according to
the cancel code.
<Ref. to CC(diag)-
11, LIST, List of
Cancel Code.>
Go to step 7.
7
CHECK CRUISE SET INDICATOR LIGHT.
Make sure the cruise set indicator light illumi-
nates.
Does the cruise set indicator
light illuminate?
Go to step 8.
Go to phenome-
non 3. <Ref. to
CC(diag)-9, DIAG-
NOSTIC PROCE-
DURE WITH
PHENOMENON,
Diagnostics with
Phenomenon.>
8
CHECK VEHICLE SPEED IS HELD WITHIN
SET SPEED.
Make sure the vehicle speed is held within set
speed.
Is the vehicle speed kept within
setting speed
r3 km/h (r2 MPH)?
(Make sure that on a level
road.)
Go to step 9.
Go to phenome-
non 4. <Ref. to
CC(diag)-9, DIAG-
NOSTIC PROCE-
DURE WITH
PHENOMENON,
Diagnostics with
Phenomenon.>