AC(diag)-36
Diagnostic Procedure for Sensors
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
Step Check Yes No
1CHECK EVAPORATOR SENSOR
1) Turn the ignition switch to OFF.
2) Remove the glove box.
3) Disconnect the connector from evaporator
sensor.
4) Measure the resistance between connector
terminals of evaporator sensor.
Te r m i n a l s
No. 1 — No. 2:
Is the resistance approximately
1.9 kΩ at 20°C (68°F)?
Go to step 2.Replace the evap-
orator sensor.
orator.>
2CHECK INPUT SIGNAL FOR EVAPORATOR
SENSOR.
1) Turn the ignition switch to ON.
2) Measure the voltage between connector
(B88) terminal and chassis ground.
Connector & terminal
(B88) No. 1 (+) — No. 2 (–):
Is the voltage approx. 5 V? Go to step 6.Go to step 3.
3CHECK AUTO A/C CONTROL MODULE
OUTPUT SIGNAL.
1) Turn the ignition switch to OFF.
2) Remove the auto A/C control module.
3) Turn the ignition switch to ON.
4) Measure the voltage between connector
terminals of auto A/C control module.
Connector & terminal
(B282) No. 13 (+) — No. 15 (–):
Is the voltage approx. 5 V? Go to step 4.Go to step 6.
4CHECK HARNESS CONNECTOR BETWEEN
AUTO A/C CONTROL MODULE AND EVAP-
ORATOR SENSOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from auto A/C
control module.
3) Measure the resistance of harness
between auto A/C control module and evapo-
rator sensor.
Connector & terminal
(B88) No. 2 — (B282) No. 15:
Is the resistance less than 1
Ω?
Go to step 5.Repair the open
circuit of harness
between auto A/C
control module
and evaporator
sensor.
5CHECK HARNESS CONNECTOR BETWEEN
AUTO A/C CONTROL MODULE AND EVAP-
ORATOR SENSOR.
Measure the resistance of harness between
auto A/C control module and evaporator sen-
sor.
Connector & terminal
(B88) No. 1 — (B282) No. 13:
Is the resistance less than 1
Ω?
Go to step 6.Repair the open
circuit of harness
between auto A/C
control module
and evaporator
sensor.
6CHECK POOR CONTACT.
Check poor contact of auto A/C control module
connector.
Is there poor contact in con-
nector?
Repair the con-
nector.
Replace the auto
A/C control mod-
ule.
Control Unit (Auto
A/C Model).>
IDI-8
Combination Meter System
INSTRUMENTATION/DRIVER INFO
5. CHECK VDCCM.
6. CHECK ENGINE CONTROL MODULE (ECM)
Step Check Yes No
1CHECK VEHICLE SPEED SIGNAL.
1) Lift up the vehicle and support it with rigid
racks.
2) Drive the vehicle faster than 10 km/h (6
MPH).
WARNING:Be careful not to get caught in the running
wheels.
3) Measure the voltage between combination
meter connector and chassis ground.
Connector & terminal
(i10) No. 27 (+) — Chassis ground (–):
Is the voltage less than 1 V
←→ 5 V or more?
Replace the meter
case assembly.
Go to step 2.
2CHECK HARNESS BETWEEN VDCCM AND
COMBINATION METER.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from VDCCM
and combination meter.
3) Measure the resistance between VDCCM
harness connector and combination meter har-
ness connector.
Connector & terminal
(B310) No. 33 — (i10) No. 27:
Is the resistance less than 10
Ω?
Check the
VDCCM.
Basic Diagnostic
Procedure.>
Repair the wiring
harness.
Step Check Yes No
1CHECK ECM SIGNAL.
1) Start the engine.
2) Measure the voltage between ECM con-
nector and chassis ground.
Connector & terminal
(B136) No. 11 (+) — Chassis ground (– ):
Is the voltage 0 ←→ 14 V or
more?
Go to step 2.Inspect the ECM.
2, Basic Diagnos-
tic Procedure.>
2CHECK HARNESS BETWEEN COMBINA-
TION METER AND ECM.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ECM and
combination meter.
3) Measure the resistance between ECM har-
ness connector and combination meter har-
ness connector.
Connector & terminal
(B136) No. 11 — (i10) No. 28:
Is the resistance less than 10
Ω?
Replace the meter
case assembly.
Repair the wiring
harness.
LAN(diag)-10
Control Module I/O Signal
LAN SYSTEM (DIAGNOSTICS)
Manual switch (UNLOCK) i84 A29 Less than 1 ΩDoor unlock switch ON
Door lock power supply i84 A34 10 — 13 V Always
All door lock output i84 A7 10 — 13 V Manual lock switch, door key switch ON
Driver’s door UNLOCK
outputi84 A23 10 — 13 V Driver’s seat unlock signal ON
All door UNLOCK output i84 A8 10 — 13 V ALL door unlock signals ON
Rear gate UNLOCK out-
puti84 A22 10 — 13 VWhen rear gate release switch ON with
all seats unlocked
Rear gate release switch B281 C22 0 V Rear gate release switch ON
Key/shift lock power sup-
plyB281 C1 10 — 13 V Always
Shift lock output B280 B6 10 — 13 VIgnition switch ON, shift position “P”
range, foot brake ON (Only AT)
Key locking output B280 B5 10 — 13 VOther than “P” range, ignition switch
ON
Wiper deicer switch i84 A14 0 V Wiper deicer switch ON
Wiper deicer relay output B280 B14 0 V Wiper deicer relay ON
Rear defogger switch i84 A28 0 V Rear defogger switch ON
Rear defogger relay out-
putB281 B16 0 V Rear defogger relay ON
Shift switch (ON) B281 C26 0 V At Manual mode
Shift switch (UP) B281 C15 0 V At Manual mode UP
Shift switch (DOWN) B281 C25 0 V At Manual mode DOWN
Shift button switch B281 C24 0 VWhen shift lever release button is oper-
ated
P range switch B281 C13 0 V Shift range P position
Impact sensor B281 C5 8 V or moreImpact sensor ON (Model with impact
sensor)
Fuel level sensor B281 C19 0 — 102.3 Ω
Resistance differs according to the fuel
level (displays resistance combining
level gauge main and sub)
Ambient temperature sen-
sor
B281 C3 0.5 — 4.5 V SIG
B281 C10 0 V GND
Seat belt switch (driver’s
seat)i84 A4 0 V When driver’s seat belt is worn
Seat belt switch (Passen-
ger’s seat)i84 A13 0 V When passenger’s seat belt is worn
Seat belt warning light
(driver’s seat)i84 A20 0 V When driver’s seat belt is worn
Seat belt warning light
(Passenger’s seat)B280 C27 0 V When passenger’s seat belt is worn
Rear wiper switch (ON) B281 C6 0 V Rear wiper switch ON
Rear wiper switch (INT) B281 C18 0 V Rear wiper switch ON
Rear washer switch B281 C27 0 V Rear washer switch ON
Rear wiper power supply B280 B21 10 — 13 V Ignition switch ON
Rear wiper ON output B280 B1 10 — 13 V Rear wiper switch ON
Rear wiper return B280B8 0 VAt wiper reversingB1 — B8 0 V
Room lamp output B280 B3 0 VWhen LOCK, UNLOCK with keyless
entry
Map lamp output B280D2 0 V When using map lamp
D9 0 V When using map lamp
DescriptionConnec-
tor No.
Te r m i n a l
No.
Signal (V)
NoteIgnition switch ON
(Engine OFF)
LAN(diag)-15
Subaru Select Monitor
LAN SYSTEM (DIAGNOSTICS)
P seatbelt SW input ON/OFFBody integrated unit input
valuePa s se ng e r ’s se at bu ckl e sw it c h ON
Fr wi pe r in p ut O N/O FFBody integrated unit input
valueOn when front wiper is operating
Registration SW input ON/OFFBody integrated unit input
value
Not supported by North American specifica-
tions
Identification SW input ON/OFFBody integrated unit input
value
Not supported by North American specifica-
tions
R defogger output ON/OFFBody integrated unit output
valueOn when rear defogger relay is operating
Door lock actuator LOCK
outputON/OFFBody integrated unit output
valueOn when lock signal is output
All seat UNLOCK output ON/OFFBody integrated unit output
valueOn when unlock signal is output
D-seat UNLOCK output ON/OFFBody integrated unit output
valueOn when unlock signal is output
R gate/trunk UNLK output ON/OFFBody integrated unit output
value
On when rear gate/trunk unlock signal is
output
Double lock output ON/OFFBody integrated unit output
value
Not supported by North American specifica-
tions
R wiper output ON/OFFBody integrated unit output
valueOn when rear wiper is operating
Shift Lock Solenoid ON/OFFBody integrated unit output
valueOn when shift lock solenoid is operating
Key locking output ON/OFFBody integrated unit output
valueOn when key lock solenoid is operating
wiper deicer SW input ON/OFFBody integrated unit output
valueOn when wiper deicer is operating
Starter cutting output ON/OFFBody integrated unit output
value
Not supported by North American specifica-
tions
Hazard Output ON/OFFBody integrated unit output
value
On when keyless lock/unlock signal is
received (when keyless switch connector is
removed)
Keyless Buzzer Output ON/OFFBody integrated unit output
value
On when keyless lock/unlock signal is
received (when keyless switch connector is
removed)
Horn Output ON/OFFBody integrated unit output
valueOn when security warning is operating
Siren Output ON/OFFBody integrated unit output
value
On when siren is installed, customize set-
tings are enabled, and security warning is
operating
D-belt warning light O/P ON/OFFBody integrated unit output
value
On when Ignition switch is turned to ON,
and buckle switch is turned off
P-belt warning light O/P ON/OFFBody integrated unit output
value
On when Ignition switch is turned to ON,
occupant is seated, and buckle switch is
turned off
Illumination lamp O/P ON/OFFBody integrated unit output
valueOn when illumination is illuminated
Room lamp output ON/OFFBody integrated unit output
value
On when keyless lock/unlock signal is
received (when keyless switch connector is
removed)
key illumi. lamp o/p ON/OFFBody integrated unit output
valueOn when key illumination light is illuminated
R fog light output ON/OFFBody integrated unit output
value
Not supported by North American specifica-
tions
R fog lamp monitor ON/OFFBody integrated unit output
value
Not supported by North American specifica-
tions
Items to be displayed Unit of measure Description Note
LAN(diag)-20
Subaru Select Monitor
LAN SYSTEM (DIAGNOSTICS)
CAUTION:
•It is possible to control the original functions of vehicle when registrations of body integrated
unit and function setting are corresponded to vehicle equipment.
•When body integrated unit is a new one or “Factory” mode, key illumination blinks to show
equipment settings have not been completed.
•Be sure not to change Factory initial setting except installation of new body integrated unit.
NOTE:
“Factory” mode:
•Body integrated unit has not been set yet. It can be recognized by key illumination blinking with ignition
switch turned to ON.
•All body integrated units as part for repair are set to “Factory” mode. When replacing a body integrated
unit, be sure to perform the registration operation.
“Market” mode:
Each settings have been set. It can be recognized by key illumination coming on in concocting with room light
and going off with ignition switch turned to ON.
7) Perform the Factory setting. On the «ECM customizing” display screen of Subaru Select Monitor, select
the {Factory initial setting} and press the [YES] key.
8) Change the mode from Factory to Market.
9) Register the immobilizer key.
10) Perform the registration according to the procedures of the “IMMOBILIZER REGISTRATION OPERA-
TION MANUAL”.
11) When key registration is completed, “Do you want to register remote engine start?” is displayed. Select
NO.
12) Perform the function setting (ECM customizing).
NOTE:
For details concerning operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION MAN-
UAL”.
DataInitial set-
tingRegistration Remarks
A/C ECM setting OFF
ONIllumination control does not operate if A/C ECM setting is
set to “OFF” in case of model with auto A/C.
OFF
If A/C ECM setting is set to “ON” in case of model without
auto A/C, illumination change to night illumination and it is
difficult to be recognized.
P/W ECM setting OFFONSet to “OFF”.OFF
Center display failure OFFONIf center display failure is set to “OFF”, diagnosis for MFD
and navigation display cannot be performed.OFF
Wiper deicer setting OFF
ON ON signal does not output with operation of wiper deicer
switch if wiper deicer is set to “OFF” in models with a wiper
deicer.OFF
Rear fog light setting OFFONSet to “OFF”.OFF
Fac t or y in i ti a l s et t i ng ( Res et
of body integrated unit)Fac to r y
Fa ct or y ( Re se t )If Factory initial setting is set to “Factory”, registrations of
items above is changed to “OFF”. After setting, be sure to
set to “Market”.Market (Settle-
ment)
LAN(diag)-33
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK IGNITION SWITCH.Is the ignition switch ON? Go to step 2.Turn the ignition
switch to ON, and
select Integ. Unit
mode using Sub-
aru Select Monitor.
2CHECK BATTERY.
1) Turn the ignition switch to OFF.
2) Measure the battery voltage.
Is the voltage more than 11 V? Go to step 3.Charge or replace
the battery.
3CHECK BATTERY TERMINAL.Is there poor contact at battery
terminal?
Repair or tighten
the battery termi-
nal.
Go to step 4.
4CHECK COMMUNICATION OF SUBARU SE-
LECT MONITOR.
1) Turn the ignition switch to ON.
2) Using the Subaru Select Monitor, check
whether communication to other systems can
be executed normally.
Are system and model year
displayed?
Go to step 7.Go to step 5.
5CHECK COMMUNICATION OF SUBARU SE-
LECT MONITOR.
1) Turn the ignition switch to OFF.
2) Disconnect the body integrated unit con-
nector.
3) Turn the ignition switch to ON.
4) Check whether communication to other
systems can be executed normally.
Are system and model year
displayed?
Go to step 7.Go to step 6.
6CHECK HARNESS CONNECTOR BETWEEN
EACH CONTROL UNIT AND SUBARU SE-
LECT MONITOR.
1) Turn the ignition switch to ON.
2) Disconnect the body integrated unit con-
nector.
3) Measure the resistance between data link
connector and chassis ground.
Connector & terminal
(B40) No. 10 — Chassis ground:
Is the resistance more than 1
MΩ?
Go to step 7.Repair the har-
ness and connec-
tor between each
control unit and
Subaru Select
Monitor.
7CHECK OUTPUT SIGNAL TO BODY INTE-
GRATED UNIT.
1) Turn the ignition switch to ON.
2) Measure the voltage between body inte-
grated unit and chassis ground.
Connector & terminal
(B40) No. 10 (+) — Chassis ground (–):
Is the voltage less than 1 V? Go to step 8.Repair the har-
ness and connec-
tor between each
control unit and
Subaru Select
Monitor.
8CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND DATA LINK
CONNECTOR.
Measure the resistance between body inte-
grated unit and data link connector.
Connector & terminal
(B40) No. 10 — (B280) No. 19:
Is the resistance less than 1
Ω?
Go to step 9.Repair the har-
ness and connec-
tor between body
integrated unit and
Subaru Select
Monitor.
9CHECK INSTALLATION OF BODY INTE-
GRATED UNIT CONNECTOR.
Tu r n t h e i g n i t i o n s w i t c h t o O F F.
Is the body integrated unit con-
nector inserted into body inte-
grated unit until the clamp
locks onto it?
Go to step 10.Insert the body
integrated unit
connector into
body integrated
unit.
LAN(diag)-77
General Diagnostic Table
LAN SYSTEM (DIAGNOSTICS)
2. BODY INTEGRATED UNIT
Item OperationSpecificationsNoteYES NO
Illumination VR
power supply
Operate the illumination volume,
illumination light is controlled
according to the change of voltage
on data display.
Illumination light is
controlled with
changing of data.
Inspect the illumi-
nation volume.—
Fuel level resis-
tance
Check the fuel level resistance and
fuel level resistance 2. Both resis-
tances are same.
Same valuesInspect the body
integrated unit.
Compare the input and
output values of body inte-
grated unit.
R wiper SW inputWhen rear wiper SW to ON, data
display turns to ON.Tu r n s t o O N .Inspect the rear
wiper switch.—
R wiper outputWhen rear wiper switch to ON, out-
put signal turns to ON.Tu r n s t o O N .Replace the body
integrated unit.
If not operate with output
turned to ON, check the
rear wiper motor.
Keyless Entr yKeyless entr y LOCK/UNLOCK the
doors.OperateInspect the key-
less antenna.
If the antenna is OK,
replace the body inte-
grated unit.
Brake SWWhen brake pedal is depressed, it
turns to ON.Tu r n s t o O N .Inspect the brake
switch.—
Shift Lock SolenoidThe shift lock releases when
depressing the brake pedal.ReleasedInspect the shift
lock.—
Body integrated
unit registration
function setting
Does Vehicle equipment corre-
spond to setting values?Correspondence
Reconfigure the
values according to
vehicle equipment.
—
CustomizeWhen changing customize setting,
the registration completes correctly.RegisteredInspect the body
integrated unit.
Return to original state
after making changes.
Manual mode
Switch the shift (UP/DOWN) on
Manual mode. Indicator is changed
in 1 — 2.
ChangeInspect the shift
lever.—
Function checkEach checking item operate cor-
rectly. (Except for not equipped)OperateInspect for non-
functional actuator.
Module is normal if output
switches to ON.
Security
After locking with keyless entry sys-
tem and open the door, the security
system operates and the horn
sounds.
Horn sounds.
(Security system
operates.)
Inspect the secu-
rity system.
Horn does not activate if
siren is set to ON by cus-
tomizing.
LI-2
General Description
LIGHTING SYSTEM
1. General Description
A: SPECIFICATION
B: CAUTION
•Before removing or installing parts, always disconnect the battery ground cable from battery. When replac-
ing the audio, control module and other parts provided with memory functions, record the memory contents
before disconnecting the battery ground cable. Otherwise, the memory is cleared.
•Reassemble the parts in the reverse order of disassembly procedure unless otherwise indicated.
•Adjust parts to the given specifications.
•Connect the connectors securely during reassembly.
•After reassembly, make sure functional parts operate smoothly.
WARNING:
•The air bag system wiring harness is routed near electrical parts and switches. Airbag system
wiring harnesses and connectors are yellow. Do not use electrical test equipment on these cir-
cuits.
•Be careful not to damage the air bag system wiring harness when servicing electrical parts and
switches.
C: PREPARATION TOOL
1. GENERAL TOOL
HeadlightHalogen type low beam 12 V — 55 W
Halogen type high beam 12 V — 65 W
Fr o nt t ur n si gn a l, p ar k in g 1 2 V — 27 / 8 W
Fr o nt si d e m ar ke r li gh t12 V — 5 W
Fr o nt fog li g ht12 V — 55 W
Side turn signal light 12 V — 2.7 W (LED)
Rear combination lightStop/Tail light/Rear side marker light 12 V — 21/5 W
Tu r n s i g n a l l i g h t 1 2 V — 2 1 W
Rear finisher light12 V — 3.8 W
Back-up light12 V — 16 W
License plate light12 V — 5 W
High-mounted stop light 12 V — 1.3 W (LED)
Room light12 V — 8 W
Spot map light12 V — 8 W
Luggage room light12 V — 13 W
Rear gate light12 V — 5 W
Glove box light12 V — 1.4 W
Door step light12 V — 3.5 W
TOOL NAME REMARKS
Circuit tester Used for measuring resistance and voltage.