PC box HONDA CIVIC 1998 6.G Workshop Manual

Component/Wiring Locations
)
Index: With Front Passenger's Airbag
SRS INDICATOR LIGHT (ln the gauge assemblvl
Troubleshooting, Page 24 13
Gauge assembly, section 23CABLE REEL
Replacemenlpage 2!-t 2
To HORN SWITCH
SRS UNIT(lncluding safing sensor
and imPact sensorl
Replacement Page 24 76
To DRIVER'S AIRBAG
DASHBOARD WIRE HARNESS
to SRS INDICATOB LIGHT in
GAUGE ASSEMBLY5P CONNECTOB
DBIVER'S AIRBAG
Beplacement,page 24-61Disposal, page 24 70FRONT PASSENGER'S AIBBAG
Replacement, Page 24_67
Disposal, Page 24 70
t
SRS MAIN HARNESSto CABI-E RE€L2P CONNECTOR
SRS MAIN
SERVICE CHECKCONNECTOR {2PI
IBRN, BLK]
to UNOER-OASHFUSE/RELAY BOX2P CONNECTOR
SRS MAIN HARNESSto FRONT PASSENGER'SAIRBAG2P CONNECTOB
SRS MAIN HARNESSto SRS UNITr8P CONNECTOR
SBS MAIN HARNESSto MAINWIRE HARNESS3P CONNECTOR
MEMORY ERASE SIGNAL(MES) CONNECTOR I2P)
[GRY, GRYI or IGRN. GRNI
MAIN WIRE HARNESSto DASHBOARD WIRE HARNESS
24P CONNECTOR
2+3
t,

Gomponent/Wiring Locations
Index: Without Front Passenger's Airbag (some Canada Modelsl
SRS INDICATOR LIGHT (ln the gauge assembly)Troubleshooting, page 24-13Gauge assembly, section 23
DRIVER'S AIRSAGReplacement,page 24-67Disposal, page 24-70
SRS UNITGROUNO
To HORN SWITCH
SRS MAIN HARNESS
SRS UNIT{lncluding safing sensorand impact sensor)Replacement. page 24,76
To CRUISE CONTROLSET/RESUME SWITCH
oo/ \oo
To DRIVER,S AIRBAG
DASHBOARD WIRE HARNESSto SRS INDICATOR LIGHT inGAUGE ASSEMBLY5P CONNECTOR
SERVICE CHECKCONNECTOR {2P}IB8N, BLKI
SRS MAINto UNDER-DASHFUSE/RELAY BOX2P CONNECTOR
SRS MAIN HARNESSto SRS UNIT18P CONNECTOR
SRS MAIN HARNESSto MAINWIREHARNESS3P CONNECTOR
MEMORY ERASE SIGNAL(MES) CONNECTON (2P'
IGRY, GRYI o. IGRN, GRNI
MAIN WIRE HARNESSto DASHBOARD WIRE HARNESS24P CONNECTOR
24-4
DUMMY RESISTOB

)Disconnecting the Airbag Connector(sl
'1. Disconnect the negative battery cable, and wait at
least three minutes.
2. Disconnect the airbag connector(sl.
Driver's Side:
. Remove the access panel from the steering wheel'
then disconnect the driver's airbag 2P connector and
cable reel 2P connector.
!@@ To prevent sccidental 8irbag deployment, turn th€ ignition switch oFF. disconncct th€ negative battery
ffi, "nd *"it thr"e minutes b€fore disconnocting any sRS conn'ctors'
. Before disconnecting the SRS main harness (A) from the SRS unit' disconnect both airbags (C' D)'
.Beforedisconnectingthecab|ereel2Pconnector(B),disconnectthedriver,sairbag2Pconnector(c).
F ont PasEanga/3 Side:
. Remove the glove box. then disconnect the front pas-
senger's airbag 2P connector and SRS main harness
2P connector.t
FRONT PASSENGER'SAIRBAG2P CONNECTOR
CABTT REEL2?CONNECTOR
AOCESS PANEL
a,
24-11

SRS Indicator Light Wire Connections
SRS Indicator Light Power Circuit
DASHBOARD WIRE HARNESS
To UNDER-DASHFUSE/RELAY BOX -
20P CONNECTOR
SRS Indicato. Light Control Circuit
To SRS UNIT
tI
SRS MAIN HARNESS
C41 1, C412 : Terminal sido of mdlo t6rminalsC501, C5O2, C508, C801. C802, C807 : Wi.6 sidc of fomalo t.rminals
MAIN WIBE HARNESS
BLU
C508 -+ To GAUGE ASSEMBLY
c41 1
To GAUGE ASSEMBLY
at
C501 : DASHBOARDWIRE HARNESS 2oP CONNECTORC508 : DASHBOARD wlRE HARNESS 5P CONNECTORC801 : SRS MAIN HARNESS 2P CONNECTORC807 : SRS MAIN HARNESS 18P CONNECTOR
C802 : SRS MAIN HARNESS 3P CONNECTORC412 : MAIN WIRE HARNESS 3P CONNECTORC41 1 : MAIN WIRE HARNESS 24P CONNECTORC502 : DASHBOARD WIRE HARNESS 24P CONNECTOR
GRY
OI
24-25

)The SRS lndicator Light Doesn't Go Off -'96 - 97 Models
CAUTION: Whenever the ignition switch is ON (ll), or has been turned OFF for less than three minutes, be careful not to
bump the SRS unit; the airbag{sl could accidentally deploy and cause damage or iniuries
Try to reproduce lhe SRS indicator light:
1. Erase the DTC memory (see page 24'15).
2. Turn the ignition switch OFF, and wait for ten seconds.
3- Turn the ignition switch ON {ll), and check that the SRS indi
cator light comes on for about six seconds and goes off
Does the SRS indicEtor light stay on?
[*NO
Intermittent lailure, system is OK at this time. See
Troubloshooting Int6rmittent Failures on page 24'15
Ch€ck the No. 13 {15 A} and No. 23 (10 A) fuses:
1. Turn the ignition switch OFF.
2. Check for blown No. 13 (15 A) and No.23 (10 A)fuses in
the under dash fuse/relay box.
Are the fuses OK?
vEs No
Replace the luses, and erase the memory1. Replace the fuses.2. Connect the SCS service connector to the MES con
nector.3. Erase the DTC memory (see page 24 15).
4. Turn the ignitaon switch OFF, then disconnect the SCS
service connector from the MES connector.5. Turn the ignition switch ON (ll).
Does the sRS indicato, tigt t go or "ne. "ii--JJl
-I YEs NO1
ENDi
Conlirm the DTC, and continue troubl6shootilg.
Check for an open in the SRS main harness {VA linell'1. Tu.n the ignition switch OFF.
2. Disconnect the battery negative cable, then disconnect
the positive cable, and wait for three minutes.
3. Disconnect the driver's (and front passenger's) airbag
connectorls) (see page 24 11).
4. Disconnect the SBS main harness '18P connector from
the sRS unir.5, Reconnect the battery positive cable, then reconnect the
negative cable.6. Connect a voltmeter between the No. 7 tetminal (+) of
the SRS main harness 18P connector and ground.
7. Turn the ignition switch on.
b there battery voltageT
YESNO
(A)
To page 24 30
Open in the SRS main harness IVA line); replace the SRS
main harness.
l.J
SBS MAIN
(cont'd)
No. 't3 {15 Al FUSE
SRS UNIT
HARNESS 18P CONNECTOR
II
24-29

Troubleshooting
The SRS Indicator Light Doesn't Go Off -'98 - 00 Models
CAUTION: Whenever the ignition switch is ON {ll}, orhas b66n turned OFF for less than three minutes, becareful not to bump the SRS unit; the airbags coutdaccidentally deploy and cause damage or iniuries.
No. 23 {10 Al FUSEFUSE/RELAY BOX
SRS MAIN HARNESS 18P CONNECTOR
Try to reproduce the SRS indic.tor light:1. Erase the DTC memory (see page 24-15).2. Turn the ignition switch ON (lt), and check that the SRSindicator light comes on for about six seconds and ooesol1.
Intormittent lailulo, systom is OK atthistime. Soo Troublel. o.mittgnl Failuros on paqe24-15.
Check the No. 23 (10 Alfuse:1. Turn the ignition switch OFF.2. Check for blown No. 23 (10 A) tuse in the under,dashfuse/relay box.
Replace ihe fus€, and 6.ase the momory1. Replace the No. 23 110 A) fuse.2. Erase the DTC memory (see page 24,15).3. Turn the ignition switch ON (ll).
Doos the SRS indicator light go off after 3ix second3?
Check tor an open in the SRS msin harness {VB lincl:1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait tor three minutes.2. Disconnect the driver's (and front passenger,s) airbagconnector(s) (see page 24-11).3. Disconnect the SRS main harness 18p connector Iromthe sRs unit.4. Reconnect the battery positive cable, then reconnect thenegative cable.5. Connect a voltmeter between the No. 3 terminal (+) ofthe SRS main harness 18P connector ano qrouno.6. Turn the ignition switch ON {ll).
(A)
To page 24-35
24-34

.J
No DTC -'98 - 00 Models
CAUTION: Whenever the ignition switch is ON (ll), or
has been turned OFF for less than three minuies. be
careful not to bump the SRS unil; the airbags could
accidentally deploy and cause damage or iniuries
(A) To page 24'40
Check for short to ground betweon the under-dash fuse/
relav box end the SRS unil
1. TLrrn the ignition switch OFF
2, Disconnect the battery negative cable, then drsconnect
the positive cable, and wait for three minutes'
3. Disconnect the driver's {and front passenger's airbag)
connector{s) {see Page 24_11)
4. Disconnect the SRS main harness 18P connector irom
5. Check resistance between the No 7 terminal of the SRS
main harness 18P connector and ground
There should be 1 M0 or more
(cont'd)
No. 13 {15 A) FUSE
sRs MAIN HARNESS
Check the tuse:Check Ior blown No 13 {15 A) fuse in the under dash fuse/
Beplace the fuse. Turn the ignition switch ON (lll, and check
that lhe tuse doesn't blow
The oroblem has disappeared. Test'drive thc vehicle and
s6e Troubleahoodng lntermittent Failures on pago 2&15
Faufty SRS uniu replace the SRS unii (see page 21-761'
(8)
To page 24 40O1'
24-39

Troubleshooting
No DTG -'98 - 00 Models (cont'dl
trom page 24 39
SRS MAIN HARNESS2P CONNECTOB
SRS MAIN HARTESS18P CONNECTOR
FUSE/RELAY BOX
c807
c807
Wir€ side ot fsmaleterminals
SRS MAIN HAR ESSlAP CONNECTOR
(Bi
Check for short to ground in iho SRS main ha.no$:1. Disconnect the SRS main harness 2P connector from theunder-dash fuse/relay box.2. Check resistance between the No. 7 terminal of the SFSmain harness 18P connector and ground. There shouldbe 1.0 MO or more.
ls lha r6i3tlnce as sp.cilied?
YESNO
Short to ground in the und..-d.sh tu3a/r.lay box;roplace the undsr-dlrh tu!6/rahy box.
Short to ground in fho SRS main harness; rsplecc the SRSmain htrnors.
Check lor an open in the SRS main harn€ls:1- Turn tho ignition switch OFF.2. Disconnect the baftery negative cable, then disconnectthe positive cable, and wait for three minutes.3. Disconnect the driver's (and front passenger's) airbagconnector(sl (see page 24-11).4. Disconnect the SBS main harness 18P connector tromthe sRs unit.5. Reconnect the battery positive cable, then reconnect thenegative cable.6. Connect a voltmeter between the No. 7 terminal ol theSFS main harness 18P connector and qro!nd.7. Turn the ignition switch ON (ll), and measure
Poor contact rt the SRS main harness 18P conn.ctor:chock th€ connectoi.. ll th. connector is OK, iubstitute a known-good SRSunit, and recheck.. lf tho pioblem is still pres6nt. replace the SRS mlinhaanos3.
(A) From page 24 39
To page 24.41
24-40

)
From page 24-40
Check for an open in the SRS main harn6s:
1. Turn the ignition switch OFF.
2. Disconnect the SRS main harness 2P connector from the
under-dash fuse/relay box
3. Check resistance between the No. 1 terminal ol the SRS
main harness 2P connector and No. 7 terminal of the
SRS main harness 18P connector.
Thereshouldbe0 05O
ls the resistance es specitied?
YES
Poor contact at the SRS main hatness 2P connector;
check the connector-. It the connector i3 OK, substitute a known-good und€r-
dash fuse/relav box, and recheck..ll the Droblem i5 still pres€nt, replace lhe SRS main
harness.
NO
Open in the SRS main hsrness; leplaco the SRS main har-
ness.
)
FUSE/RELAY BOX
SRS MAIN HARNESS18P CONNECTOR
c807
Wire side of femaleterminals
SRS MAIN HARNESS2P CONNECTOR
24-41
lrt

Troubleshooting
DTC 9-2
CAUTION: Whenever the ignition switch is ON 0l), ofhas been turned OFF lor lass than three minutes, becareful not to bump the SRS unit; the airbag(s) couldaccidentally deploy lnd caqse damage or iniuries.
Check the tu.c:1. Turn the ignition switch OFF.2. Check for blown No. 23 (10 A) fuse in the under,dashfuse/relay box.
Replace the tuse. Turn the ignition switch ON lll) , and checkthat the fuse doesn't blow.
Th6 problem hs3 disappe.rod, TGt-dJiv€ the vehiclo and3ee Troublerhooting Intermiftcnt Failuro3 on paqo 2l-15.
Check tol short to ground betwe.n tho unde.-da3h fus./r.ley box and the SRS unit.1. Turn the ignition switch OFF.2. Disconnect the baftery negative cable, then disconnectthe positive cable, and waittorthree minutes.3. Disconnect the driver's (and front passenger,s) airbagconnector(s) (see page 24-11).4. Disconnect the SRS main harness 1gp connector fromthe sRs unit.5. Check resistance between the No. 3 terminal of the SRSmarn harness 18P connector and ground,There should be 1 MO or more.
Feufty SRS unh; rcphce the SRS unit lsee pag.2+761.
(A)To page 24-65
To page 24-65
No. 23 lr0 Al FUSEFUSE/RELAY BOX
!
SRS MAIN HARNESS18P CONNECTORSRS UN'T
24-64
I
SRS MAIN HARNESS 18P CONNECTOR
Otf