LAN(diag)-72
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
V: DTC B0321 CAN-LS METER NO-RECEIVE DATA
DTC DETECTING CONDITION:
Combination meter unit error, or harness between the main harness splice and combination meter unit is
open or shorted, the connector is not connected properly and the terminal has poor caulking.
TROUBLE SYMPTOM:
Fail mode occurs because the data is not received from combination meter unit.
WIRING DIAGRAM:
LAN00192
TO POWER SUPPLY CIRCUITFB-10M/B FUSE NO.28 (P)
1
4
3
7
A9
A4
5
BODY INTEGRATED UNIT
ILLUMINATION & BACK-UPJOINT CONNECTOR
KEYLESS ENTRY CONTROL MODULE
i84
i99
i99
i96
E
i84i96i99
123456789101112131415161718192021222324252627282930313233343510 11 12349561728
12345678
Step Check Yes No
1CHECK COMMUNICATION LINE.
1) Warm up the engine.
2) Compare the data of body integrated unit
and combination meter using Subaru Select
Monitor.
Check item:
•Engine speed
•Shift range
Is the data displayed same? Go to step 2.Perform the self-
diagnosis of com-
bination meter.
SIS, INSPEC-
TION,
Combination
Meter System.>
LAN(diag)-74
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
W: DTC B0500 KEYLESS UART COM. MALFUNCTION
DTC DETECTING CONDITION:
UART between keyless control unit and body integrated unit is open or shorted, the connector is not con-
nected properly, or the terminal has poor caulking.
TROUBLE SYMPTOM:
Door lock does not operate with keyless.
WIRING DIAGRAM:
i128
1*
2*1*
2*
CAN JOINTCONNECTOR
i10
B283
A29A30
A27
A26
B26
B25
A: i84
B: B280B1
B14
TWISTED PAIR LINE
5467821931022 231112131415242526 2716171828 29192021 30
B280
i84
1234567891011121314151617181920212223242526272829303132333435
2345 678912 13 14 15 16 17 18 19 20 21 2210111
B283
i10
COMBINATIONMETER
BODYINTEGRATEDUNIT
AUTO A/CCONTROLMODULE
123456789101112
LAN00193
A:
B:
2*
1*
A6
A14
FRONTMONITOR
21
22MFD
2* :TERMINAL NO. OPTIONAL ARRANGEMENT AMONG 7, 8, 9, 10, 11 AND 12
1* :TERMINAL NO. OPTIONAL ARRANGEMENT AMONG 1, 2, 3, 4, 5 AND 6
i119
i122
A:
A:
A:
i119A:
i122
i128B:
MFDNAVI
MFD
NAVI
9
19 20
105672143131211
14 15 16 17
8
18222125262423
12345678910 11 12 13 14 15 16
345 678919 20 2114 15 16 17 1812101211 13 22
Step Check Yes No
1CHECK HARNESS.
1) Disconnect the body integrated unit con-
nector (i84) and keyless entry control unit con-
nector (i96).
2) Measure the resistance between har-
nesses.
Connector & terminal
(i84) No. 9 — (i96) No. 3:
Is the resistance less than 10
Ω?
Go to step 2.Repair the open
circuit of harness
or replace har-
ness.
LAN(diag)-75
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
2CHECK HARNESS.
Measure the resistance between harness con-
nector and chassis ground.
Connector & terminal
(i84) No. 9 — Chassis ground:
Is the resistance less than 1M
Ω?
Repair the short
circuit of harness
or replace har-
ness.
Go to step 3.
3CHECK HARNESS.
1) Turn the ignition switch to ON.
2) Measure the voltage between harness con-
nector and chassis ground.
Connector & terminal
(i84) No. 9 (+) — Chassis ground (–):
Is the voltage more than 6 V? Repair the short
circuit of harness
or replace har-
ness.
Go to step 4.
4OPERATION CHECK.
Check the door lock operation when the doors
LOCK/UNLOCK using manual LOCK switch.
Does it operate on switch oper-
ation?
Go to step 5.Replace the body
integrated unit.
Integrated Unit.>
5OPERATION CHECK.
1) Disconnect the key warning switch connec-
tor (B350).
2) Close all the doors, and then perform the
LOCK/UNLOCK operation on keyless entry
operation.
Does it operate? Check key warning
switch.
Replace the key-
less entry control
module.
Keyless Entr y
Control Module.>
Step Check Yes No
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.
SL-6
General Description
SECURITY AND LOCKS
5. KEYLESS ENTRY SYSTEM
B: CAUTION
•Before disassembling or reassembling parts, al-
ways disconnect the battery ground cable from bat-
tery. When repairing the audio, control module, etc.
which are provided with memory functions, record
the memory contents before disconnecting the
ground cable from battery. Otherwise, these con-
tents are erased upon disconnection.
•Reassemble the parts in the reverse order of dis-
assembly unless otherwise indicated.
•Adjust the parts to the specifications described in
this manual if so designated.
•Connect the connectors securely during reas-
sembly.
•After reassembly, ensure the functional parts op-
erate smoothly.
•The air bag system wiring harness is routed near
electrical parts and switches.
•Airbag system wiring harnesses and connectors
are yellow. Do not use the electrical test equipment
on these circuits.
•Be careful not to damage the airbag system wir-
ing harness when servicing the ignition key cylin-
der.
(1) Keyless entry control module (3) Door switch (5) Horn
(2) Rear gate latch switch (4) Body integrated unit (6) Keyless buzzer
SL-00440
(2)
(3)
(4)
(5)
(5)
(6)
(1)
SL-8
Door Lock Control System
SECURITY AND LOCKS
2. Door Lock Control System
A: WIRING DIAGRAM
1. DOOR LOCK CONTROL
B: INSPECTION
1. SYMPTOM CHART
2. CHECK FUSE
3. CHECK POWER SUPPLY & GROUND CIRCUIT
Symptom Repair order Reference
The door lock control system does
not operate.
1. Check the fuse.
2. Check the power supply and ground cir-
cuit for body integrated unit.
Lock Control System.>
3. Check the door lock switch and the circuit.
trol System.>
4. Check the door lock actuator and the cir-
cuit.
Door Lock Control System.>
The door lock switch does not oper-
ate.
Check the door lock switch.
trol System.>
A specific door lock actuator does
not operate.
Check the door lock actuator and circuit.
Door Lock Control System.>
Step Check Yes No
1CHECK FUSE.
Remove and visually check the fuse No. 3 (in
the fuse and relay box) and No. 7 (in the fuse
and relay box).
Is the fuse blown out? Replace the fuse
with a new one.
Check the power
supply and ground
circuit.
POWER SUPPLY
& GROUND CIR-
CUIT, INSPEC-
TION, Door Lock
Control System.>
Step Check Yes No
1CHECK POWER SUPPLY.
1) Disconnect the harness connector of body
integrated unit.
2) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(i84) No. 34 (+) — Chassis ground (–):
(B281) No. 2 (+) — Chassis ground (– ):
Is the voltage more than 10 V? Go to step 2.Check the harness
for open or shor t
circuit between
body integrated
unit and fuse.
2CHECK GROUND CIRCUIT.
Measure the resistance between harness con-
nector terminal and chassis ground.
Connector & terminal
(B280) No. 22 — Chassis ground:
(B281) No. 8, 9 — Chassis ground:
Is the resistance less than 10
Ω?
The power supply
and ground circuit
are OK.
Repair the har-
ness.
SL-11
Keyless Entry System
SECURITY AND LOCKS
3. Keyless Entry System
A: WIRING DIAGRAM
1. KEYLESS ENTRY
B: ELECTRICAL SPECIFICATION
1. KEYLESS ENTRY CONTROL MODULE
2. BODY INTEGRATED UNIT
SL-00228
43218765
i96To
Description Terminal No. Measuring condition
Body integrated unit 3 (OUTPUT) Battery voltage cannot be measured because of digital signal.
Pow er s up p ly ( B a cku p ) 4 B at t e r y vol t ag e i s c on s ta n tl y p r e se nt .
Ground 7 0 V is constantly present.
CS-00273
71928
61827
51741626152514241312231122
3102921
1820
B281side
72030
619291828
51741627152614132512241123
3102922
1821
B280side
82335
722342162033
51932183117301615291428
41327
312261121025
1924
i84side
SL-12
Keyless Entry System
SECURITY AND LOCKS
Description Terminal No. Measuring condition
Ignition switch (ON) A1 (INPUT) Battery voltage is present when ignition switch is turned ON.
Keyless buzzer A6 (OUTPU T)12 V is present when pressing the LOCK or UNLOCK button of transmit-
ter.
Driver’s side front door lock actuator A7 (OUTPUT) Battery voltage is present when pressing the transmitter LOCK button.
Door and rear gate lock actuator A8 (OUTPUT)Battery voltage is present when pressing the transmitter UNLOCK but-
ton.
Keyless entr y control module A9 (INPUT) Communication line (Cannot be measured because of digital signal)
Rear gate latch switch A17 (INPUT) 0 V is present when opening the rear gate.
Rear door switch RH A18 (INPUT) 0 V is present when opening the rear door RH.
Fr o nt d oo r swi tc h L H A 19 ( I NP UT ) 0 V i s pr e se n t wh e n o p en in g th e f r o n t d oo r L H.
Ground A21 0 V is constantly present.
Rear gate release switch C22 (OUTPUT) 0 V is present when pressing the rear gate release switch.
Rear gate release actuator A22 (OUTPUT)The battery voltage is detected for 0.6 seconds when operating the rear
gate release switch.
Driver’s side front door lock actuator A23 (OUTPUT)Battery voltage is present when pressing the transmitter UNLOCK but-
ton.
Driver’s side power window main
switch (door lock switch)
Passenger’s side door lock sw itch
A15 0 V is present when pressing the door lock switch to the LOCK side.
A29 0 V is present when pressing the door lock switch to the UNLOCK side.
Rear door switch LH A31 (INPUT) 0 V is present when opening the rear door LH.
Fr o nt d oo r swi tc h RH A 32 ( I NP UT ) 0 V i s pr e se n t wh e n o p en in g th e f r o n t d oo r RH.
Pow er s up p ly A 34 B at t e r y vol t ag e i s c on s ta n tl y p r e se nt .
Room light B3 (INPUT)•0 V is present when pressing the UNLOCK button of transmitter.
•0 V is present when opening the door.
Pow er s up p ly B 7 B at t e r y vol t ag e i s c on s ta n tl y p r e se nt .
Horn circuit B11 (INPUT) 0 V is present when pressing the panic button of transmitter
Tu r n s i g n a l & h a z a r d c i r c u i t B 1 2 ( O U T P U T )0 V is present when pressing the LOCK or UNLOCK button of transmit-
ter.
Ground B22 0 V is constantly present.
Pow er s up p ly C 1 B at t e r y vol t ag e i s c on s ta n tl y p r e se nt .
Pow er s up p ly C 2 B at t e r y vol t ag e i s c on s ta n tl y p r e se nt .
Key war ning switch C7 (INPUT) Batter y voltage is present when inser ting the key into ignition switch.
Ground C8 0 V is constantly present.
Ground C9 0 V is constantly present.