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
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.
OD(diag)-2
Basic Diagnostic Procedure
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
Step Check Yes No
1CHECK WARNING LIGHT.
Check whether the airbag warning light in the
combination meter is lit.
Does the airbag warning light
illuminate?
Go to step 2.Perform the diag-
nosis according to
phenomenon of
the problem.
2READ DTC.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to data
link connector.
3) Turn the ignition switch to ON, and the Sub-
aru Select Monitor power switch to ON.
4) Read the DTC.
(DTC).>
NOTE:If the communication function of the Subaru Se-
lect Monitor cannot be executed normally,
check the communication circuit.
TIALIZING IMPOSSIBLE, INSPECTION, Sub-
aru Select Monitor.>
5) Record all DTCs and freeze frame data.
Is DTC displayed? Go to step 3.Go to “Airbag
Wa r ni n g L ig h t Fa i l-
ure”.
bag Warning Light
Fai lu r e.>
3PERFORM DIAGNOSIS.
1) Determine the possible cause from “List of
Diagnostic Trouble Code.”
2) Inspect the DTC using “List of Diagnostic
Tr o u b l e C o d e ( D T C ) ” .
3) Repair the trouble cause.
4) Perform the clear memory mode.
5) Perform the inspection mode.
6) Read any other DTCs displayed.
Is DTC displayed? Perform the proce-
dure 1) to 5) in
step 3.
Finish the diagno-
sis.
OD(diag)-3
Check List for Interview
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
2. Check List for Interview
A: CHECK
Customer's name Inspector's name
Date vehicle brought in / / Registration No.
Odometer readingkm
milesV. I . N .
Date problem occurred / / Registration year / /
Weather Fine Cloudy Rainy Snowy Others:
Te m p e r a t u r e ° C ( ° F )
Road condition Level road Uphill Downhill Rough road Others:
Ve h i c l e o p e r a t i o n
Starting Idling
Driving ( Constant speed Acceleration Deceleration
Steering wheel turn Others: )
Details of problem
Airbag warning light operation Normal (After turning the ignition switch to ON, illuminates for 6 seconds then goes off.)
Remains ON Remains OFF
Passenger's airbag ON/OFF
indicator does not operate.
Normal (After turning the ignition switch to ON, illuminates for 6 seconds then goes off for 2
seconds; Lights ON (adult) or OFF (children/unoccupied).)
Both remain ON Both remain OFF
DTC output Normal code DTC: (Code: )
OD(diag)-14
Electrical Component Location
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
4. Electrical Component Location
A: LOCATION
(1) Occupant detection control mod-
ule
(3) Airbag ON/OFF indicator light
(Warning box)
(4) Buckle switch (Passenger's seat)
(5) Seat belt tension sensor
(2) Occupant detection sensor
(1)
(2)
(5)
(4)(3)
OD-00019
OD-00016
(1)
OD-00015
(2)
OD-00018
(3)
OD-00017
(4)
OD(diag)-17
Subaru Select Monitor
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
7. Subaru Select Monitor
A: OPERATION
1. READ DIAGNOSTIC TROUBLE CODE (DTC)
When malfunction of the airbag system and the occupant detection system occur, the DTC stored in airbag
control module will be read out.
Refer to the DTC readout of the airbag system (diagnosis).
NOTE:
•For details concerning operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION
MANUAL”.
•For details concerning DTCs, refer to the “List of Diagnostic Trouble Code (Airbag system, Occupant de-
tection system).”
2. DISPLAY OF STATUS INFORMATION
Check the operating condition of each sensor in the event of malfunction in seat belt buckle switch and seat
position sensor, or when the seat belt buckle switch and seat position sensor has been replaced.
1) On the «Main Menu» display screen, select the {Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display screen, select the {Airbag System} and press the [YES] key.
3) On the «Airbag System» display screen, select the {Status Data} and press the [YES] key.
The following table is for support data.
*1: The seat position is forward.
*2: The seat position is rearward.
*3: Displayed when data other than before and behind the seat, such as the breakdown etc, is input.
*4: Displayed when it is initial.
*5: Seat position sensor not supported
*6. Seat belt fastened
*7. Seat belt not fastened
*8: Displayed when data other than belt fastened or not fastened, such as breakdowns is input.
*9: Seat belt buckle switch not supported
*10: Passenger's seat air bag operating state
*11: Passenger's seat air bag non-operating state
NOTE:
For details concerning operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION MAN-
UAL”.
Item Display Contents
Seat position sensor LHFr o nt p os it i on *1/Rear position *2 /Other *3/Initial Setting *3 /–– *5
Seat position sensor RH–– *5
Seat belt buckle switch LHBuckled *6/Unbuckled *7 /Other *8/Initial Setting *4 /–– *9
Seat belt buckle switch RHBuckled *6/Unbuckled *7 /Other *8/Initial Setting *4 /–– *9
Passenger’s airbag control statusON *10/OFF *11 /Initial Setting *4
OD(diag)-18
Subaru Select Monitor
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
3. CLEAR MEMORY MODE
Clear the DTC stored in the airbag control module
after repairing the airbag system and occupant de-
tection system. (After the breakdown is recovered,
the breakdown code for completed recoveries are
read out when the next breakdown occurs if the
memory clear work is not performed.)
1) On the «Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display
screen, select the {Airbag System} and press the
[YES] key.
3) On the {Airbag System} menu screen, select the
{Clear Memory} and press the [YES] key.
4) When the “Clear Memory?” is shown on the
screen, press the [YES] key.
5) When “Done” is displayed, turn the Subaru Se-
lect Monitor to OFF.
NOTE:
For details concerning operation procedure, refer
to the “SUBARU SELECT MONITOR OPERATION
MANUAL”.
4. SYSTEM CALIBRATION (REZEROING)
NOTE:
When replacing the occupant detection system, or
removing and disassembling the passenger’s seat,
always perform the system calibration after install-
ing a seat in the vehicle.
CAUTION:
When the trouble occurs in the system during
calibration process, “Occupant detection cali-
bration failure” is detected in the DTC 2A of the
airbag system and the airbag warning light
lights. In this case, after turning the ignition
switch to OFF once, redo the system calibration
(Rezeroing), or after clearing the cause of the
failure, perform the system calibration again.
1) Park empty vehicle on a level surface.
2) On the «Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
3) On the «System Selection Menu» display
screen, select the {Occupant Detection System}
and press the [YES] key.
4) On the Occupant Detection System display
screen, select the {Zero Point Adjustment} and
press the [YES] key.
5) “See service manual. And check vehicle condi-
tion for successfully completing the rezeroing.” is
displayed. Check the following to adjust the condi-
tion of the vehicle.
•Adjust the seat backrest to be vertical. (Press the
power seat switch to put the seat in a position
where it will not move.)
•Adjust the seat sliding position to all the way
back. (Press the power seat switch to put the seat
in a position where it will not move.)
•Do not place anything on the top of the seat
cushion.
•Sit on the seat cushion to smooth the seat sur-
face.
•Check that the passenger’s seat belt is not in-
serted into the buckle, not tense or not stuck.
•Check that ambient temperature is in a range
from 0 to 40°C.
6) When the «Re-zeroing Adjust the passenger
seat to the condition shown in service manual» is
displayed, slide the passenger seat all the way to
the back, check that the backrest is adjusted to all
the way up, and press the [YES] key.
7) When the «Re-zeroing Unbelt the Passenger
seatbelt Continue: YES, Quit: NO» is displayed,
make sure the passenger’s seatbelt is disconnect-
ed from the buckle and press the [YES] key.
8) When the «Re-zeroing Empty the passenger
seat Continue: YES, Quit: NO» is displayed, make
sure that the passenger’s seat is empty, air bag
OFF indicator illuminates and air bag ON indicator
does not illuminate, and press the [YES] key.
NOTE:
•After pressing the [YES] key, «Now processing
.... Wait for a while. Do not touch or give impact to
vehicle and seat» is displayed. Do not touch or rock
the vehicle while the message is displayed.
•During the system calibration process, if the
«Re-zeroing is unsuccessful See service manual
Press YES to END» is displayed, go to step 10).
9) When the re-zeroing is ended normally, the«Re-
zeroing is successfully completed Press YES to
END» is displayed. Press the [YES] key and turn
the ignition switch to OFF to finish the diagnosis.
OD-00025
OD(diag)-19
Subaru Select Monitor
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
10) During the system calibration process, if the
«Re-zeroing is unsuccessful See service manual
Press YES to END» is displayed, turn the ignition
switch to OFF once and turn it to ON again, and
then read the DTC of airbag system.
tor.>
When DTC is input, fix the fault and then perform
the system calibration. When DTC is not input,
check the seat and vehicle status and then perform
the system calibration again.
TION, Subaru Select Monitor.>
NOTE:
When the re-zeroing is unsuccessful, there could
be occupant detection system failure or improper
seat and vehicle status. When the airbag warning
light illuminates, read the DTC of airbag system,
and perform the diagnosis referring to “List of Diag-
nostic Trouble Code.”
B: INSPECTION
1. COMMUNICATION FOR INITIALIZING
IMPOSSIBLE
DETECTING CONDITION:
Defective harness connector
TROUBLE SYMPTOM:
Communication is impossible between the airbag
control module and the Subaru Select Monitor.
Refer to “Initial Communication Impossible” in the
DTC of the airbag system (diagnosis).
tor.>
2. WITHOUT DTC
DETECTING CONDITION:
•Defective combination meter
•Open circuit of harness
TROUBLE SYMPTOM:
•Airbag warning light remains on.
•“NO TROUBLE CODE” will be displayed on the
Subaru Select Monitor.
For detailed operation procedure, refer to “Airbag
Warning Light Failure”.
NOTE:
When the airbag warning light is OFF and “NO
TROUBLE CODE” is displayed on Subaru Select
Monitor, the system is in normal condition.