CC(ETC)(diag)-19
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
D: DTC 16 IGNITION SWITCH
TROUBLE SYMPTOM:
Cruise control cannot be set.
WIRING DIAGRAM:
CC-00374
B135
ECM
B19
B:
MAIN SBFF/B NO.12SBF-6
BATTERYIGNITIONSWITCH
B:B135
5672134
29
101112131415252416
30
98171819202821222332312627333435
CC(ETC)(diag)-20
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
E: DTC 22 AND 32 VEHICLE SPEED SENSOR
DIAGNOSIS:
Open or short circuit in vehicle speed sensor system.
TROUBLE SYMPTOM:
Cruise control cannot be set. (Cancelled immediately.)
Step Check Yes No
1 CHECK IGNITION SWITCH CIRCUIT
1) Turn the ignition switch to OFF.
2) Disconnect the ECM harness connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B135) No. 19 (+) — Chassis ground (–):
Is the voltage more than 10 V? Check poor con-
tact of ECM con-
nector.
•Check fuse No.
12 (in fuse & relay
box).
•Check the har-
ness for open or
short circuit
between ignition
switch and ECM.
Step Check Yes No
1CHECK ABS WARNING LIGHT.
1) Turn the ignition switch to ON.
2) After the initial operation of combination
meter is completed, check if the VDC warning
light continues to illuminate.
Does the VDC warning light
continue to illuminate?
Check the
VDCCM.
Basic Diagnostic
Procedure.>
Go to step 2.
2CHECK LAN COMMUNICATION CIRCUIT
ERROR DISPLAY
Check if the communication error is displayed
on the odo/trip meter in combination meter.
Is the error code «Er xx» dis-
played on odo/trip meter?
Check the LAN
communication cir-
cuit.
Diagnostic Proce-
dure.>
Replace the ECM.
Engine Control
Module (ECM).>
ET-3
Audio System
ENTERTAINMENT
2. Audio System
A: WIRING DIAGRAM
B: INSPECTION
Symptom Repair order
No power coming in. (No display and no sound from speakers) 1. Check the fuse and power supply for audio.
2. Check the audio ground.
3. Remove the audio and repair them.
A specific speaker does not operate. 1. Check the speaker.
2. Check the output circuit between audio and speaker.
Audio generates noise with engine is r unning. 1. C heck the audio ground.
2. Check the generator.
3. Check the ignition coil.
4. Remove the audio and repair them.
Vo l u m e i s l o w i n A M a n d F M m o d e s o r i n t e r f e r e n c e n o i s e
occurs.
1. Check the antenna.
2. Check the antenna amplifier.
3. Check the noise suppressor.
4. Check the audio ground.
5. Remove the audio and repair them.
ET-6
Navigation System
ENTERTAINMENT
5. Navigation System
A: WIRING DIAGRAM
B: INSPECTION
1. CHECK THE OPERATION OF THE NAVI-
GATION.
Start the engine, and then inspect that the opening
screen is displayed.
Standard value: The opening screen should be dis-
played.
OK: Normal
NG: When not displayed, check the signal line con-
nector and the audio connector. If there are no
problems in the connecting lines or the lines were
repaired, check that the opening screen is dis-
played.
At this point, if the display is not viewable, the unit is
defective.
2. CHECK THE DVD-ROM.
An opening screen is displayed, then it switches to
the map screen after a while.
When a screen other than the opening screen is
displayed, press the «MAP» key.
Standard value: The map screen should be dis-
played.
OK: Normal
NG: If the map screen is not displayed, check
whether the DVD-ROM is set in the navigation sys-
tem, whether the correct side is set, type of the
DVD-ROM, the existence of any scratches, etc. If
there are no problems on the DVD-ROM, the main
body is defective.
3. CHECK EACH CONNECTION
If there are no problems in the inspections of 1 and
2 above, use “
vice to perform inspection.
4. SWITCHING TO CONNECTION INSPEC-
TION MODE
1) Press the menu key.
2) Select navigation setup from the menu screen.
3) Select navigation information from the naviga-
tion setup screen.
4) Select the vehicle signal from the navigation in-
formation screen.
5) The display will switch to the vehicle signal (for
connection inspection) screen.
6) Check that the display changes according to
each operation
ON: Normal
NG: Check the circuit when the display does not
change.
5. CHECK THE GPS ANTENNA
NOTE:
When checking the GPS antenna, perform the
check operation outdoors to improve the receiver
sensitivity.
Make sure that a value other than “zero” is dis-
played in the GPS item.
OK: Normal
NG: If “No positioning” is displayed, check the GPS
antenna connection.
If the GPS display is red, the main unit could be
faulty.
6. CHECK THE BACK SENSOR
NOTE:
Before starting inspections, inspect the safety
around the rear end of the vehicle.
1) Turn the ignition switch to ON.
2) Pull the parking brake and depress the brake,
then put the gear in reverse.
3) Make sure that “On” is lit in the back sensor item.
Standard Value: “On” should be lit.
On: Normal
NG: If “On” does not light, check the signal line con-
nection. If there are no problems, the unit could be
faulty.
7. CHECK THE ILLUMINATION
1) Turn the lighting switch to level 1.
NOTE:
Make sure that the bright switch is not turned ON at
this time.
2) Make sure that “On” lights in the illumination
item, then the screen fades out.
Standard Value: “On” should be lit.
OK: Normal
NG: If “On” does not light, check the signal line con-
nection. If there are no problems, the unit could be
faulty.
8. CHECK THE PARKING SIGNAL
NOTE:
The side brake signal is normally “OFF”, so operat-
ing it will produce no change.
ET-12
Control Panel
ENTERTAINMENT
1. SELF DIAGNOSIS OF THE CONTROL PANEL AND AUDIO
Step Check Yes No
1SETTING THE SELF-DIAGNOSIS MODE BY
OPERATING THE CONTROL PANEL.
1) Turn the audio system OFF with the ignition
switch on ACC or ON.
2) With the TUNE UP switch and the SEEK
DOWN switch held down, hold the RDM switch
down for 2 seconds or more.
3) A buzzer will sound, and the unit will enter
the diagnosis mode.
Does the self diagnosis mode
of the control panel operate?
Go to step 3.Go to step 2.
2CHECK BUZZERDid the buzzer sound when
going into the diagnosis mode?
Go to step 6.Check the connec-
tion of the har-
ness connector,
and if there are no
problems found,
repair or replace
the audio unit and
control panel.
Audio.>
Control Panel.>
3COMMUNICATION STATUS CHECK
Press the preset 1 switch, and confirm the
TEMP display section of the control panel.
When the switch is pressed, is
<<88.8>> displayed at the
TEMP display section?
Go to step 4.Go to step 5.
4COMMUNICATION STATUS CHECKWas the display in step 3 on
the left side TEMP display sec-
tion?
Audio.>
trol Panel.>
5CHECK SWITCH.
Operate the switches in the following list, and
check the display content in the left and right
TEMP displays.
Does the switch check list and
the operated switches match?
Control Panel.>
Audio.>
trol Panel.>
6INSPECTION OF MALFUCTION DISPLAY
1) Reconnect the connector between the con-
trol panel and the audio.
2) Operate the control panel and switch to the
self diagnosis mode.
Did the control panel switch to
the malfunction diagnosis
mode?
Go to step 3.Go to step 7.
7INSPECTION OF MALFUCTION DISPLAYDid the buzzer sound when
going into the self diagnosis
mode?
Audio.>
Audio.>
Control Panel.>
GW-25
Rear Window Defogger
GLASS/WINDOWS/MIRRORS
17.Rear Window Defogger
A: INSPECTION
1. CHECK WITH SUBARU SELECT MONITOR
CAUTION:
Check that the rear window defogger timer is in initial setting or customize setting before performing
inspection.
2. HEAT WIRE INSPECTION
CAUTION:
Use a dry and soft cloth when wiping dirt off the
glass. Move the cloth along the heat wire to
avoid damaging it.
1) Turn the ignition switch to ON.
2) Turn the defogger switch to ON.
3) Wrap the tips of tester probe with aluminum foil
to avoid damage to heat wire.
4) Measure the voltage at heat wire center with DC
voltmeter.
Standard voltage:
Approx. 6 V
NOTE:
•If the measured value is 12 volts, heat wire is
open between heat wire center and positive (+) ter-
minal of tester probe.
•If it is 0 V, the circuit is open between heat wire
center and ground.
Step Check Yes No
1CHECK INPUT SIGNAL TO THE BODY INTE-
GRATED UNIT.
Check the input signal when the rear window
defogger switch is operated using Subaru
Select Monitor.
1) Connect the Subaru Select Monitor to data
link connector.
2) Turn the ignition switch to ON.
3) Select {Integ. unit} from the «main menu».
4) Select the {Current Data Display & Save}.
5) Check the input signal when the rear win-
dow defogger switch is set to ON.
After rear defogger switch is
set to ON, does it turn to OFF
in 15 minutes? Or does it
repeat 15 minutes operation
and 2 minutes stop?
END. Replace the body
integrated unit.
Integrated Unit.>
(1) Tester probe
(2) Aluminum foil
(3) Heat wire
(4) Press
GW-00076
(2)
(3)
(4)
(1)
(1) Center of heat wire
Vo l t a g e C r i t e r i a
Approx. 6 V Normal
Approx. 12 V or 0 V Open
GW-00077
(1)
GW-31
Wiper Deicer Switch
GLASS/WINDOWS/MIRRORS
22.Wiper Deicer Switch
A: REMOVAL
1) Remove the instrument panel lower cover.
er.>
2) Disconnect the harness connector and remove
wiper deicer switch.
B: INSTALLATION
Install in the reverse order of removal.
C: INSPECTION
1. CHECK WITH SUBARU SELECT MONITOR
CAUTION:
Check whether the wiper deicer timer is in initial setting or customize setting before performing in-
spection.
GW-00486
LR
OFFOFF
Step Check Yes No
1CHECK INPUT SIGNAL TO THE BODY INTE-
GRATED UNIT.
Check the input signal when the wiper deicer
switch is operated using Subaru Select Moni-
tor.
1) Connect the Subaru Select Monitor to data
link connector.
2) Turn the ignition switch to ON.
3) Select {Integ. unit} from the «main menu».
4) Select the {Current Data Display & Save}.
5) Check the input signal when the wiper
deicer switch is set to ON.
After the wiper deicer switch is
set to ON, does it turn to OFF
in 15 minutes? Or does it oper-
ate continuously?
END. Replace the body
integrated unit.
Integrated Unit.>
AC-22
Refrigerant Charging Procedure
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
7) Note the low-pressure gauge reading.
8) Leave it at least 5 minutes, and then check the
low-pressure gauge reading for any changes.
If the gauge indicator shows near zero point, it is a
sign of leakage. Check pipe connector points, re-
pair them, and make sure there is no leakage.
9) Follow the can tap operation manual, install to
the refrigerant can.
10) Disconnect the center manifold hose from the
vacuum pump, and connect the hose to the tap
valve.
11) When a 13.6 kg (30 lb) refrigerant container is
used, measure the weight of the refrigerant amount
to use using a scale.
12) Confirm that all the 3 hoses are connected se-
curely to the manifold gauge set.
13) Open the valve on the HFC-134a source.
14) Loosen the center hose connection on the
manifold gauge set (if applicable, press a purge
valve on the manifold gauge set) for a few seconds
to allow the air in the center hose to escape by the
refrigerant pressure.
15) Stop the engine and carefully open the high-
pressure valve.
CAUTION:
Do not open the low-pressure valve.
CAUTION:
Never run the engine while charging from the
high-pressure side.
16) Close the high-pressure valve when the low-
pressure gauge reaches 98 kPa (1 kg/cm2, 14 psi).
Using a leak tester, check the system for leaks.
If any leakage is found after the refrigerant recov-
ery is completed, repair the applicable area.
(A) Tap valve
(B) Center manifold hose
(A) Refrigerant container (HFC-134a)
(B) Scale
AC-00027
AC-00028
(A)
(B)
AC-00029
(A)
(B)
(A) Low-pressure gauge (Compound pressure
gauge)
(B) High-pressure gauge
(C) Close
(A) Low-pressure gauge (Compound pressure
gauge)
(B) High-pressure gauge
(C) Close
(D) Ignition switch OFF
(E) Slowly open
AC-00030
(A) (B)
(C)(C)
AC-00031
(A) (B)
(E)
(D)
(C)