CC(ETC)(diag)-11
List of Diagnostic Trouble Code (DTC)
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
7. List of Diagnostic Trouble Code (DTC)
A: LIST
DTC Item Contents of diagnosis Reference
11 Main switch Main switch of cruise control command
switch is tur ned to OFF, and then the cr uise
control is released.
This DTC is displayed without operating the
main switch.
COMMAND SWITCH, Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>
12 Stop and brake switch Stop light switch or brake switch is turned to
ON, and then the cruise control is released.
This DTC is displayed without depressing
the brake pedal.
AND BRAKE SWITCH, Diagnostic Proce-
dure with Diagnostic Trouble Code (DTC).>
14 Neutral switch Neutral position switch is turned to ON, and
then the cruise control is released.
This DTC is displayed without shifting to
neutral position.
Diagnostic Procedure with Diagnostic Trou-
ble Code (DTC).>
15 Cancel switch Cancel switch is turned to ON, and then the
cruise control is released.
This DTC is displayed without operating the
cancel switch.
COMMAND SWITCH, Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>
16 Ignition switch Ignition switch is turned to OFF, and then the
cruise control is released.
This DTC is displayed without operating the
ignition switch.
Procedure with Diagnostic Trouble Code
(DTC).>
21 Cruise control switch mal-
function when ignition
switch is tur ned to ON
When the ignition switch is turned to ON,
each switch of cruise control command
switch is already tur ned to ON.
This DTC is displayed without operating the
main switch.
COMMAND SWITCH, Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>
22 Vehicle speed variation
malfunction
Malfunction of vehicle speed signal variation
is detected.
Procedure with Diagnostic Trouble Code
(DTC).>
23 Engine related sensor
malfunction
Malfunction related to engine is detected.
24 Cruise control related
switch malfunction
Command switch malfunction is detected.
(While the switch is pressed ON for an
abnormally long time (approximately two
minutes), open circuit is detected.)
This DTC is displayed with normal opera-
tion.
MAND SWITCH, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>
25 Brake switch input circuit
malfunction
Malfunction of brake switch input circuit in
ECM is detected.
SWITCH, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>
26 Engine speed signal • Abnormal increase of engine speed is
detected.
•Gear is placed in Neutral, 1st or Reverse
position.
Cruise in more than 2nd shift position.
CC(ETC)(diag)-12
List of Diagnostic Trouble Code (DTC)
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
32 Out of vehicle speed 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 with-
out memorized vehicle speed.
This DTC is displayed, though the vehicle
speed is increased to the speed available for
cruise set and set operation was performed
again.
nostic Procedure with Diagnostic Trouble
Code (DTC).>
33 WAIT is prohibited after
operating accelerator
pedal.
Controlled vehicle speed increased above
the limit during cruising.
This DTC is displayed when driving at higher
speed than appropriate cruise control
speed. In this case, lower the vehicle speed
to the speed available for cruise set, and
perform cruise set operation again.
34 Prohibited when accelera-
tor pedal position large is
continued.
The vehicle has been driven at higher speed
than set vehicle speed for an abnormally
long time (approximately 10 minutes) during
cruise driving.
This DTC is displayed when driving for a
long period of time at higher speed than
appropriate cruise set vehicle speed by
operating accelerator pedal. In this case,
release the cruise set.
35 Prohibited when vehicle
speed feedback unavail-
able.
Set vehicle speed cannot be kept because
of some reasons (steep uphill, parking
brake, abnormal decrease of engine output,
etc.) during cruise driving.
This DTC is displayed when driving condi-
tion is not suitable for cruise control. Perform
cruise set operation again after clearing the
possible cause.
41 VDC/TCS operation Vehicle dynamics control (VDC) or TCS is
operated during cruise driving or cruise set-
ting.
This DTC is displayed when driving condi-
tion is not suitable for cruise control. Perform
cruise set operation again after clearing the
possible cause.
43 ABS/VDC malfunction Vehicle dynamics control (VDC) system mal-
function is detected during cruise driving or
cruise setting.
44 Body integrated unit mal-
function
Body integrated unit system malfunction is
detected during cruise driving or cruise set-
ting.
45 Meter Failure Combination meter malfunction is detected
during cruise driving or cruise setting.
DTC Item Contents of diagnosis Reference
CC(ETC)(diag)-13
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
8. Diagnostic Procedure with Diagnostic Trouble Code (DTC)
A: DTC 11, 15, 21 AND 24 CRUISE CONTROL COMMAND SWITCH
TROUBLE SYMPTOM:
•Cruise control cannot be set. (Cancelled immediately.)
•Cruise control cannot be released.
WIRING DIAGRAM:
CC-00371
ST3
SET/COASTSWITCH
RESUME/ACCELSWITCH
CANCELSWITCH
B136C:ECM
B24
2
B68
STEERINGROLL CONNECTOR
31
MAINSWITCH
541
B12C6
*
*
B21
123412131415567816171819910 1120212223 24 25 2627 28 29 3031 32 33
3534 37363938 41404342 4445 47464948 51505352 54
12345678
B68
123
ST3B136
9
302928 3231201918 22211012111424343327261612345613231525871735
C:
* :TERMINAL NO. OPTIONAL ARRANGEMENT
B122
CRUISE CONTROLCOMMAND SWITCH
B135B:
B122
12345678
B135
5672134
29
101112131415252416
30
98171819202821222332312627333435
B:
CC(ETC)(diag)-14
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK CRUISE CONTROL COMMAND
SWITCH CIRCUIT.
1) Remove the driver's airbag module.
2) Disconnect the harness connector of cruise
control command switch.
3) Turn the ignition switch to ON.
4) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(ST3) No. 1 (+) — Chassis ground (–):
(ST3) No. 3 (+) — Chassis ground (–):
Is the voltage more than 5 V? Go to step 2.Check the harness
between cruise
control command
switch and ECM,
and the steering
roll connector for
open or short cir-
cuit, or for poor
contact.
2CHECK CRUISE CONTROL COMMAND
SWITCH CIRCUIT.
1) Turn the ignition switch to OFF.
2) Remove the cruise control command
switch.
3) Measure the resistance between harness
connector terminal and chassis ground.
Connector terminal
(ST3) No. 2 — Chassis ground:
Is the resistance less than 10
Ω?
Go to step 3.Check for open
between cruise
control command
switch and ECM
and chassis
ground, and check
the ECM.
3Check Cruise Control Command Switch
Measure the resistance between switch termi-
nals when the cruise control command switch
is not being pressed.
Te r m i n a l s
No. 2 — No. 3:
Is the resistance approx. 4 kΩ?Go to step 4.Replace the cruise
control command
switch.
trol Command
Switch.>
4CHECK CANCEL SWITCH.
1) Turn the ignition switch to OFF.
2) Remove the cruise control command
switch.
3) Measure the resistance between switch ter-
minals when the CANCEL switch is pressed.
Te r m i n a l s
No. 2 — No. 3:
Is the resistance approx. less
than 1 Ω when the CANCEL
switch is pressed?
Go to step 5.Replace the cruise
control command
switch.
trol Command
Switch.>
5CHECK SET/COAST SWITCH.
Measure the resistance between switch termi-
nals when the SET/COAST switch is pressed.
Te r m i n a l s
No. 2 — No. 3:
Is the resistance approx. 250 Ω
when SET/COAST switch is
pressed?
Go to step 6.Replace the cruise
control command
switch.
trol Command
Switch.>
6CHECK RESUME/ACCEL SWITCH CIRCUIT.
Measure the resistance between switch termi-
nals when the RESUME/ACCEL switch is
pressed.
Te r m i n a l s
No. 2 — No. 3:
Is the resistance approx. 1,500
Ω when RESUME/ACCEL
switch is pressed?
Replace the ECM.
Engine Control
Module (ECM).>
Replace the cruise
control command
switch.
trol Command
Switch.>
CC(ETC)(diag)-15
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
B: DTC 12 AND 25 STOP LIGHT SWITCH AND BRAKE SWITCH
TROUBLE SYMPTOM:
•Cruise control cannot be set.
•Cruise control cannot be released.
WIRING DIAGRAM:
CC-00372
B65
MAIN SBFSBF-2 F/B NO.8
B65
4
3
1
2
B28B20
1234
SBF-8 F/B NO.4
F5
B159
F9
F:
947621538
B159F:
ECM
BATTERY
STOP LIGHT SWITCHAND BRAKE SWITCH
BRAKESWITCH
STOP SWITCH SWITCH
IGNITIONRELAY
FUSE & RELAY BOX
12
B107
B135B:
B135
5672134
29
101112131415252416
30
98171819202821222332312627333435
B:
CC(ETC)(diag)-16
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK STOP LIGHT SWITCH AND BRAKE
SWITCH CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the stop light switch and brake
switch harness connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B65) No. 2 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 2.•Check fuse No.
8 (in fuse & relay
box).
•Check for open
or short in the har-
ness between stop
light/brake switch
and fuse & relay
box.
2CHECK STOP LIGHT SWITCH AND BRAKE
SWITCH CIRCUIT.
Measure the voltage between harness connec-
tor terminal and chassis ground.
Connector & terminal
(B65) No. 4 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 3.•Check fuse No.
4 (in fuse & relay
box).
•Check for open
or short in the har-
ness between stop
light/brake switch
and fuse & relay
box.
3CHECK STOP LIGHT SWITCH AND BRAKE
SWITCH CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connector of ECM.
3) Measure the resistance between ECM har-
ness connector terminal and stop light switch
and brake switch harness connector terminal.
Connector & terminal
(B135) No. 28 — (B65) No. 3:
(B135) No. 20 — (B65) No. 1:
Is the resistance less than 10
Ω?
Go to step 4.Repair the har-
ness.
4Check Stop Light Switch and Brake Switch
Remove and check the stop light switch and
brake switch.
Are the stop light switch and
brake switch OK?
Replace the ECM.
Engine Control
Module (ECM).>
Replace the stop
light switch and
brake switch.
CC(ETC)(diag)-17
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
C: DTC 14 NEUTRAL POSITION SWITCH
TROUBLE SYMPTOM:
Cruise control cannot be set.
WIRING DIAGRAM:
CC-00373
B136
ECM
C31
C:
B19
B55
TCM
B:
12341011 1219 20 21135614 1578916 17 1822 23 24
B55B:C:B136
16101112131415252430
9871718192028212223293231
123456
2726333435
CC(ETC)(diag)-18
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK NEUTRAL POSITION SWITCH.
1) Connect the Subaru Select Monitor to data
link connector.
2) Turn the ignition switch and Subaru Select
Monitor switch to ON.
3) Select {Engine} from the main menu.
4) Then, select {Current Data Display &
Save}.
5) Check the neutral position switch signal by
shifting the select lever to “P” or “N” range.
Is Subaru Select Monitor ON
when select lever is shifted into
“P” or “N” range? Is Subaru
Select Monitor OFF when
select lever is shifted to a
range other than the “P” or “N”
range?
Replace the ECM.
Engine Control
Module (ECM).>
Go to step 2.
2CHECK TCM OUTPUT VOLTAGE.
1) Turn the ignition switch to ON.
2) Measure the voltage between TCM har-
ness connector terminal and chassis ground.
Connector & terminal
(B55) No. 19 (+) — Chassis ground (–):
Is voltage more than 10 V
when select lever is shifted to a
range other than “P” or “N”
range? Is voltage less than 1 V
when select lever is shifted into
“P” or “N” range?
Go to step 3.Check the TCM.
tic Procedure.>
3CHECK HARNESS BETWEEN TCM AND
ECM.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connector from
TCM and ECM.
3) Measure the resistance between TCM har-
ness connector terminal and ECM harness
connector terminal.
Connector & terminal
(B136) No. 31 — (B55) No. 19:
Is the resistance less than 10
Ω?
Replace the ECM.
Engine Control
Module (ECM).>
Repair the wiring
harness.