Subaru 2009 IMPREZA Service Manual page 3287

CRUISE CONTROL SYSTEM (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
Step
1 CHECK MALFUNCTION INDICATOR LIGHT.
Make sure the malfunction indicator light illumi-
nates.
2 CHECK CRUISE INDICATOR LIGHT.
Make sure the cruise indicator light blinks.
3 CHECK CRUISE CONTROL MAIN SWITCH
OPERATION.
Check cruise control main switch operation.
(Ensure the cruise indicator light illuminates.)
4 CHECK CRUISE CONTROL SET OPERA-
TION.
Check the cruise control setting operation.
5 CHECK DTC.
Read all DTCs using the Subaru Select Monitor.
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.
7 CHECK CRUISE SET INDICATOR LIGHT.
Make sure the cruise set indicator light illumi-
nates.
8 CHECK VEHICLE SPEED IS HELD WITHIN
SET SPEED.
Make sure the vehicle speed is held within set
speed.
Basic Diagnostic Procedure
Does the malfunction indicator
light illuminate?
Does the cruise indicator light
blink?
Is the cruise control main switch
turned on? (Does the cruise
indicator light illuminate?)
Can the cruise control be set
while driving at 40 km/h (25
MPH) or more?
Is an engine or ABS/VDC
related DTC displayed?
Is it possible to read the cancel
codes?
Does the cruise set indicator
light illuminate?
Is the vehicle speed kept within
setting speed 3 km/h ( 2
MPH)? (Make sure that on a
level road.)
CC(diag)-2
Check Yes
Go to step 5.
Go to step 6.
Go to step 4.
Go to step 7.
Perform the diag-
nosis according to
the engine or ABS/
VDC related DTC.
Perform the diag-
nosis according to
the cancel code.
<Ref. to CC(diag)-
11, LIST, List of
Cancel Code.>
Go to step 8.
Go to step 9.
No
Go to step 2.
Go to step 3.
Go to phenome-
non 1. <Ref. to
CC(diag)-9, DIAG-
NOSTIC PROCE-
DURE WITH
PHENOMENON,
Diagnostics with
Phenomenon.>
Go to step 6.
Go to phenome-
non 2. <Ref. to
CC(diag)-9, DIAG-
NOSTIC PROCE-
DURE WITH
PHENOMENON,
Diagnostics with
Phenomenon.>
Go to step 7.
Go to phenome-
non 3. <Ref. to
CC(diag)-9, DIAG-
NOSTIC PROCE-
DURE WITH
PHENOMENON,
Diagnostics with
Phenomenon.>
Go to phenome-
non 4. <Ref. to
CC(diag)-9, DIAG-
NOSTIC PROCE-
DURE WITH
PHENOMENON,
Diagnostics with
Phenomenon.>