Belt HONDA CIVIC 2003 7.G Service Manual

Seat Belts
Rear Seat Belt Replacement {cont'd)
Center Belt and Seat Belt Buckles
1. Remove the seat cushion {see page 20-80).
2. Remove the center anchor bolts (A), and remove
the seat belt buckles (B) and center beh (C).
A7/16-20 UNF32 N.m 13.3 kgf.m,24 tbt.ft)
'.;r- 1-..i, ,
'" -"':'' "':
3. Remove the right seat-back (see page 20-80).
4. Remove the seat-back cover (seepage20-82).
5, Remove the seat-back pad from the seat-back
frame (see step 3 on page 20-81).
6. Remove the screw, and release the hooks (A), then
remove the retractor cover (B).
Fastener Location B
23-8
t.)
7. Remove the seat belt guide (A) from the pin (B),
and release the center belt (C) from the seat beltg u ide.
Remove the retractor mounting bolt (A), and the
retractor bolt (B), then remove the center belt (C)
and retractor (D) from the seat-back frame (E).
A6x1.0mm9.8 N.m (1.0 kgf m,7.2 tbl.ttl
7/16-20 UNF32 N.m (3.3 kgf m,24 tbf.ftl
.:.',

I
9. lnstallthe seat belt and buckles in the reverse order
of removal, and note these items:
. Check that the retractor locking mechanism
functions (see step 1 on page 23-10).. Assemble the washers on the center anchor bolt
as shown (except center shoulder belt).. Apply liquid thread lock to the anchor bolts
before reinstallation.. Before installing the center anchor bolt, make
sure there are no twlsts or kinks in the center belt,
Canler anchor bolt construction:
WASHER
Inspec'tion
For front seat belt retractors with seat belt tensioners.
reviewthe SRS component locations (see page 23-13)
and the precautions and procedures (see psge 23-14) in
the SRS section before performing repairs or service.
Retractor, Front and Rear
1. Before installing the retractor, check that the seat
belt can be pulled out freely.
2. l\4ake sure that the seat belt does not lock when the
retractor (A) is leaned slowly up to 15'from the
mounted position. The seat belt should lock when
the retractor is leaned over 40'. Do not attemDt to
disassemble the retractor.
Front:
Rear:
Forward
Forward
lnside
Inside
Replace the seat belt with a new assembly if there
is any abnormality. Do not disassemble any pan of
the seat belt for any reason,
(cont'd)
23-9

Seat Belts
Inspection (cont'd)
RetraEtor, Rear Center
1. Before installing the retractor, check that the seat
belt can be pulled out freely.
2, Make sure that the seat belt does not lock when the
retractor (A) is leaned slowly up to 15' from the
mounted position.
lnsideForward
3,
4.
Lean the retractor over 40', and make sure that the
seat belt does not lock when pulled out over 900
mm (35.4 in.). Do not aftempt to disassemble the
retractor.
Replace the seat belt with a new assembly if there
is any abnormality. Do not disassemble any part of
the seat belt for any reason.
23-10
\,J
In-vehicle
1. Check that the seat belt is not twisted or caught on
anything.
2. After installing the anchors. check for free
movement on the anchor bolts. lf necessary,
remove the anchor bolts and check that the
washers and other parts are not damaged or
improperly installed.
3. Check the seat belts for damage or discoloration.
Clean with a shop towel if necessary. Use only
soap and water to clean.
NOTE: Dirt build-up in the loops of the upper
anchors can cause the seat belts to retract slowly.
Wipe the inside of the loops with a clean cloth
dampened in lsopropyl alcohol.
Check that the seat belt does not lock when pulled
out slowly. The seat belt is designed to lock only
during a sudden stop or impact.
For rear center shoulder belt, check that the seat
belt locks when pulled out over 400 mm (15.7 in.)
with the seat-back folded down.
Make sure that the seat belt will retract
automatically when released.
For each passenger's seat belt, check the seat belt
retractor locking mechanism ALR (automatic
locking retractor). This function is for securing child
seats.
-1 Pullthe seat belt allthe way outto engage the
ALR. The seat belt should retract with a
ratcheting sound, but not extend. This is
normal.
-2 To disengage the ALR, release the seat belt and
allow itto fully retract, then pullthe seat belt
out part-way. The seat belt should retract and
extend normally.
Replace the seat belt with a new assembly if there
is any abnormality. Do not disassemble any part of
the seat belt for any reason.
7.
8.

sRs
Component Location Index
LEFT FRONT IMPACT SENSOB
RIGHT FRONT IMPACT SENSOR
CABLE REELBeplacement,page 23-119
SIDE AIRBAG CUTOFF INDICATOR
DRIVER'S AIRBAGReplacement, page 23-1 13Disposal, page 23 1'16
SRS INOICATORTroubleshooting, page 23-105
FRONT PASSENGER'S AIRBAGReplacement, page 23-1 14Disposal, page 23'116
SENSOR/SEAT BACKReplacement,page 20-75
FRONT PASSENGER'SSIDE AIRBAGReplacement,page 23'1'15Disposal,page 23'116
FRONT PASSENGER'SSEAT BELTTENSIONERBeplacement,page 23-4Disposal,page 23-'116
MEMORY ERASESIGNAL (MES}CONNECTOR I2PI
DATA LINKCONNECTOR(DLCI 16P
OPDS UNITInitialization, page 23-27Replacement, page 23-124
PASSENGER'S SIOEIMPACT SENSORReplacement,page 23-123
FRONT PASSENGER'S SEATBELT BUCKLE TENSIONER
DRIVER'S SEAT BELT TENSIONERReplacement, page 23 4Disposal, page 23-116
23-13

sRs
Precautions and Procedures {cont'dl
SRS Unit, Front lmpact Sensors, and Side
lmpact Sensors
. Be careful not to bump or impact the SRS unit, front
impact sensors, or side impact sensors whenever the
ignition switch is ON (ll), or for at least 3 minules after
the ignition switch is turned OFF.
. During installation orreplacement, be careful notto
bump (by impact wrench, hammer, etc.) the area
around the SRS unit, front impact sensors, and sjde
impact sensor. The airbags could accidentally deploy
and cause damage or injury.
After a collision in which any airbags or seat belt
tensioners were deployed. replace the SRS unit, front
impact sensors, and other related components (see
page 23-112). After a collision in which a side airbag
was deployed. replace the side impact sensor on the
deployed side and the SRS unit. After a collision in
which the airbags or the side airbags did not deploy,
inspect for any damage or any deformation on the
SRS unit, front impact sensors, and the side impact
sensors. lf there is any damage, replace the SRS unit
and/or the sensors.
23-16
.j
. Do not disassemble the SRS unit, front impact sensors,
or side impact sensors.
. Turn the ignition switch OFF, disconnect the battery
negative cable, and wait at least 3 minules before
beginning installation or replacement of the SBS unit,
or disconnecting the connectors from the SRS unit.
. Be sure the SRS unit, front impact sensors, and side
impact sensors are installed securely. with the
mounting bolts torqued to 9.8 N.m (1.0 kgf.m,7.2 lbf.ft)
. Do not spill wateroroil on the SRS unit, front impact
sensors, or the side impact sensors, and keep them
away from dust.
. Store the SRS unit, front imDact sensors and side
impact sensors in a cool (less than 104"F/40'C) and
dry (less than 80 % relative humidity, no moisture)
area.
I

sRs
Precautions and Procedures (cont'dl
Disconnecting System Connectors
Before removing a front airbag. side airbag, or other SRS related devices {the SRS unit, the cable reel, the front impact
sensors, the side impact sensors, the seat belt buckle tensioners, and the seat belt tensioner connector), disconnectingconnectors from related devices, or removing the dashboard or the steering column, disconnect the airbag connectorsor the side airbag connectors to prevent accidental deploVment.
Turn the ignition switch OFF, disconnect the negative cable from the battery, and wait at least 3 minutes before
beginning the following procedures.'BeforedisconnectingSRSunitconnectorA(1)fromtheSRSunit,disconnectthedriver'sairbag4Pconnector(3).
the front passenger's airbag 4P connector (4), the driver's seat belt tensioner 2P connector (6), and the frontpassenger's seat belt tensioner 2P connector (7).
. Before disconnecting SRS unit connector B (8) from the SRS unit, disconnect both side airbag 2P connectors (11. '12),
and both seat belt buckle tensioner 4P connectors (9, 10).. Before disconnecting the cable reel 4P connector (2), disconnect the driver's airbag 4P connector (3).'Beforedisconnectingthefloorwireharness4Pconnector(5),disconnectbothseatbelttensioner2Pconnectors
(6.7).
23-20
\.

sRs
Precautions and Procedures (cont'd)
Seat Belt Tensioner
5. Disconnect both seat belt tensioner 2P connectors
(A) from the floor wire harness
Seat Belt Buckle Tensioner
6. Disconnect both seat belt buckle tensioner 4P
connectors (A).
23-22
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4
SRS Unit
7. Disconnect SRS unit connector A, SRS unit
connector B, and/or SRS unit connector C from the
SRS unit.

General Troubleshooting Information
DTC (Diagnostic Trouble Codesl
The self-diagnostic function of the SRS system allows it
to locate the causes of system problems and then store
this information in memory. For easier troubleshooting,
this data can be retrieved via a data link circuit.
. When you turn the ignition switch ON (ll), the SRS
indicator will come on. lf it goes off after 6 seconds,
the system is normal.. lf there is an abnormality, the svstem locates and
defines the problem, stores this information in
memory, and turns the SRS indicator on. The data
will remain in the memory even when the ignition
switch is turned off or if the battery is disconnected.. When you connect the Honda PG lM Tester to the 16P
data link connector (DLC)to short the SCS terminal,
and turn the ignition switch ON (ll). the SRS indicator
will indicate the diagnostic trouble code (DTC) by the
number of blinks.. When you connect the Honda PGM Tester to the 16P
data link Connector (DLC), you can retrieve the DTC in
the Honda Systems "SRS" menu.. After reading and recording the DTC, proceed with
the troubleshooting procedure for th is code.
Precautions. Use only a digital multimeter to check the system. lf
it's not a Honda multimeter, make sure its output is
10 mA (0.01A) or less when switched to the smallest
value in the ohmmeter range, A tester with a higher
output could damage the airbag circuit or cause
accidental airbag deployment and possible injury.. Whenever the ignition switch is ON (ll), or has been
turned OFF for less than 3 minutes, be careful not to
bump the SRS uniU the airbags could accidentally
deploy and cause damage or injuries.. Before you remove the SRS harness, disconnect the
driver's airbag connector. the front passenger's
airbag connector, both side airbag connectors, both
seat belt buckle tensioner connectors, and both seat
belt tensioner connectors.. Make sure the battery is sufficiently charged. lf the
battery is dead or low, measuring values won't be
correct.. Do not touch a tester probe to the terminals in the
SRS unit or harness connectors, and do not connect
the terminals with a jumper wire. Use only the
backprobe set and the Honda PGM Tester. Backprobe
spring loaded lock type connectors correctly.
Reading the DTC
When the SRS indicator is on, read the DTC using either
of the following methods:
PGM Tester "SRS" Menu Method:
Connect the Honda PGM Tester {A) to the 16P data link
connector {DLC)(B), and follow the Tester's Drompts in
the "SRS" menu.
lf the Tester indicates no DTC, no communication. DTC
3-6 to 3-'10, DTC 4-6 to 4-10, DTC 9-1, or DTC 9-2,
double-check by using the "SCS" menu method.
(cont'd)
23-23

sRs
DTCDetection ltemNotes
t- |ODen in driver's airbaq inflator(see Daqe 23-36)
Increased resistance in driver's airbaq inflator(see Daoe 23-36
t-5Shon to another wire or decreased resistance in driver's airbag
inflator
(see page 23-37)
1-4Shortto Dower in driver's airbao inflator(see paqe 23-39
t-5Shortto qround in driver's airbaq inflator{see paqe 23-40
2-1Open in front Dassenqer's airbaq inflator{see oaoe 23-42
2-2Increased resistance in front passenqer's airbaq intlator(see oaqe 23-42
2-3Short to another wire or decreased resistance in front passenger's
airbao inflator
(see page 23-43)
2-4Short to oower in front oassenoer's airbaq inflator(see paqe 23-45
2-5Short to qround in front passenqer's airbaq inflator(see paqe 23-46
3-1ODen in driver's seat belt tensioner(see page 23-48
3-2lncreased resistance in driver's seat belt tensioner(see paqe 23-48
3-3Short to another wire or decreased resistance in driver's seat belt
tensioner
(see page 23-49)
3-4Short to oower in driver's seat belt tensioner(see Daqe 23-51
3-5Short to oround in driver's seat belt tensioner(see oaoe 23-52
21-1ODen or increased resistance in driver's seat belt buckle tensioner(see paqe 23-54
Short to another wire or decreased resistance in driver's seat belt
buckle tensioner
(see page 23-55)
2't -4Short to Dower in driver's seat belt buckle tensioner(see paqe 23-56)
2't-5Shon to oround in driver's seat belt buckle tensioner(see oaqe 23'57
4-'lODen in front oassenoer's seat belt tensioner{see page 23-58)
4-2lncreased resistance in front oassenqer's seat belttensioner{see paqe 23-58)
4-3Short to another wire or decreased resistance in front passenger's
seat belt tensioner
{see page 23-60)
4-4Shon to Dower in front Dassenqer's seat belt tensionerlsee oaqe 23-61
4-5Short to qround in front oassenoer's seat belt tensioner(see Daqe 23-63
Open or increased resislance in front passenger's seat belt buckle
tens ioner
(see page 23-64)
22-3Short to another wire or decreased resistance in front passenger's
seat belt buckle tensioner
(see page 23-65)
22-4Short to oower in front oassenqer's seat belt buckle tensioner(see paqe 23-66
22-5Short to oround in front oassenoer's seat belt buckle tensioner(see paqe 23-68
5-1lnternal failure of SRS unit
NOTE:
Before troubleshooting DTCS 5-1 through 8-6, check battery/system
voltage. lf the voltage is low, repair the cha rging system before
troubleshootino the SRS.
(see page 23-69)
5-2
5-4
5-8
6-3
6-4
6-7
6-8
1-)
7-3
8-1
a-2
8-4
8-5
8-6
DTC Troubleshooting Indext.
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23-28
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DTCDetection ltemNotes9-1Internal failure of the SRS unit. lf intermittent, it could mean internalfailure of the unit or a faulty indicator circuit. Refer toTroubleshooting Intermittent Failures (see page 23-26).
NOTE: Before troubleshooting DTC 9-1 or 9-2, check battery/systemvoltage. lf the voltage is low, repair the charging system beforetroubleshooting the SRS.
(see page 23-69)
9-2Internal failure of the SRS unit. lf intermittent, it could mean internalfailu re of the power supply (VB line). Refer to TroubleshootingIntermittent Failures (see page 23-26).
NOTE: Before troubleshooting DTC 9-1 or 9-2, check battery/systemvoltage. lf the voltage is low, repair the charging system or replacethe b€ttery before troubleshooting the SRS.
9-3Faulty driver's seat belt buckle switch(see Daqe 23-71)9-4
9-6
FaultLtglt passenger's seat belt buckle switch
Faulty Ieft front imDact sensorlgqgfage 23-74)
{see Daqe 23-77)9-7Faulty right front impact sensor(see paqe 23-79)10-1Seat belt and seat belt buckle tensioners (and airbag(s)) deployedDriver's side airbag deployed
Seat belt and seat belt buckle tensioners (and airbag(s)) and driver'sside airbag deployed
Front passenqer's side airbao deDloved
(see page 23-69)10-2
r0-3
'10-4
'10-5Seat belt and seat belt buckle tensioners (and airbag(s)) and frontpassenqer's side airbaq deDloved
10-6Driver's and front passenqer's side al10-7Seat belt and seat belt buckle tensioners (and airbag(s)) and driver'sand front passenger's side airbags deployed
1 1-1Open or increased resistance in driver's side airbao inflator(see paqe 23-81)Short to another wire or decreased resistance in driver's side airbaoinflator
(see page 23-82)
11-4Short to power in driver's side airbaq inflator(see oaqe 23-83)I t-5Short to ground in driver's side airbaq inflator{see paqe 23-85)Open or increased resistance in front passenger's side airbaginflator
(see page 23-86)
Short to another wire or decreased resistance in front passenger's
side airbag inflator
(see page 23-87)
12-4Short to power in front passenqer's side airbaq inflator{see Daqe zJ-uu}I z-5Short to ground in front passenger's side airbaq inflator(see oaqe 23-90)13-1Internal failure of the driver's side impact sensor(see page 23-70)
No signal from the driver's side impact sensor(see paqe 23-91)13-4
14-1-7ii,
Faulty power supply to the df,rglllug t Opact s9I99LInternal failure ofthe front passenger's side impact sensor
(see page 23-92)(see page 23-70)
14-3No signal from the front passenger's side impact sensor(see paqe 23-94)14-4Faulty power supply to the front passenqer's side impact sensor(see page 23-95)15-1Faultv OPDS unit or OPDS not initialized(see paqe 23-96115-2Faulty side airbag cutoff indicator circuit(see Daqe 23-99)15-3Faulty OPDS sensor(see oaoe 23-104)
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23-29