Subaru Forester 2004 - Basic Diagnostic Procedure

CC(H4DOTC 2.5)-2
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
Basic Diagnostic Procedure
1. Basic Diagnostic Procedure
A: PROCEDURE
Step Check Yes No
1 CHECK MALFUNCTION INDICATOR LIGHT.
Check 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.
Check 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 the cruise control main switch opera-
tion. (Check the cruise indicator light illumi-
nates.)
Is the cruise control main
switch set to on? (Does the
cruise indicator light illumi-
nate?)
Go to step 4. Go to symptom 1.
<Ref. to
CC(H4DOTC 2.5)-
10, SYMPTOM
CHART, Diagnos-
tic Procedure with
Symptom.>
4 CHECK CRUISE CONTROL SET OPERA-
TION.
Check the cruise control set operation.
Can the cruise control be set
while driving at 40 km/h (25
MPH)?
Go to step 6. Go to step 5.
5 PERFORM CRUISE CONTROL CANCEL
CONDITION DIAGNOSIS.
Perform the cruise control cancel condition
diagnosis.
Are any DTC indicated? Go to “List of
DTC”. <Ref. to
CC(H4DOTC 2.5)-
13, List of Diag-
nostic Trouble
Code (DTC).>
Go to symptom 2.
<Ref. to
CC(H4DOTC 2.5)-
10, SYMPTOM
CHART, Diagnos-
tic Procedure with
Symptom.>
6 CHECK VEHICLE SPEED IS HELD WITHIN
SET SPEED.
Make sure the vehicle speed is held within set
speed.
Is the vehicle speed held within
set speed ±3 km/h (±2 MPH)?
(Make an inspection on a level
road.)
Go to step 7. Go to symptom 3.
<Ref. to
CC(H4DOTC 2.5)-
10, SYMPTOM
CHART, Diagnos-
tic Procedure with
Symptom.>
7 CHECK RESUME/ACCEL OPERATION.
Check the RESUME/ACCEL switch operation.
Does the vehicle speed
increase or return to set speed
after RESUME/ACCEL switch
has been pressed?
Go to step 8. Go to symptom 4.
<Ref. to
CC(H4DOTC 2.5)-
10, SYMPTOM
CHART, Diagnos-
tic Procedure with
Symptom.>
8 CHECK SET/COAST OPERATION.
Check the SET/COAST switch operation.
Does the vehicle speed
decrease after SET/COAST
switch has been pressed?
Go to step 9. Go to symptom 5.
<Ref. to
CC(H4DOTC 2.5)-
10, SYMPTOM
CHART, Diagnos-
tic Procedure with
Symptom.>
9 CHECK CANCEL OPERATION.
Check the CANCEL switch operation.
Is the cruise control released
after CANCEL switch has been
pressed?
Go to step 10. Go to symptom 6.
<Ref. to
CC(H4DOTC 2.5)-
10, SYMPTOM
CHART, Diagnos-
tic Procedure with
Symptom.>