replace HONDA CIVIC 1996 6.G Workshop Manual

Troubleshooting
The SRS Indicator Light Doesn't Come On
CAUTION: Whonever ths ignition switch is ON {ll}, or
has been turned OFF tor less than three minutes. be
careful not to bump the SRS unit; the airbagls) could
accidentally deploy .nd caus6 damage or iniuri€s.
Check tho pow€r supply (fuse):
Turn the ignition switch ON (ll), and check whether the otherindicator lights come on (brake system, etc.).
Oo the other indicator liohts como on?
YESNO
Check th6 fuso:Check the No. 25 {7.5 A) fuse in the under-dash tuse/relayb"t
ls th6 tu36 OK?
NOYES
Check the bulb:Replace the No. 25 (7.5 A) fuse, and check that theSRS indicator light comes on.
Doos the SRS indicator liqhl come on7
I YES No
END
Check tho wire harns b€twecn fus6 and gauge aasambly:Check for an open in the wire harness between luseNo. 25 {7.5 A) and the gauge assembly, and repair. Checkthat the SRS indicator light comes on.
Doo. tho SRS indic.tor light como on?
I yEs No
I
END
Check tho SRS indicator light bulb:1. Turn the ignition switch OFF.2. Remove the gauge assembly.3. Check for blown SRS indicator light butb.
ls the SRS indicator light bulb OK?
NOYES
Ch.ck the SnS indicator liglrt circuit:Replace the bulb, and reconnect the gauge assemblyconnectors. Then turn the ignition switch ON {ll}.
Ooes th6 SRS indicato. llght come on?
I YEs No
:ND
lAl To page 24-27
24-26
lB'J fo page 24-27
))
No. 25 (7.5 Al FUSE

)
From page 24-26
(A)
From page 24-26
(B)DASHBOARD WIRE HARNESS
5P CONNECTOR
It
MAIN WIRE HARNESS2,rP CONNECTOR
DASHAOARD WIREHARNESS 2irPCONNECTOR
c41 1
(cont'd)
24-27
check the sRs indicator light circuit:1. Disconnect the dashboard wire harness 5P connector
from the gauge assembly.2. Connect a voltmeter between the No. 1 terminal (+) of
the 5P connector and ground.
3. T!rn the ignition switch ON 1ll), and meas!re voltage.
ls there 8.5 V or loss lor six seconds atter the ignition
swilch has been turned ON {lll?
YESNO
Faulty SRS indicator light circuit in the gauge e$embly;
replace the SRS printed circuit boa.d in tho gauge
ass€mblY.
Check the wire harness otthe SRS indicator light circuil {1):'1. Turn the ignition switch OFF.2. Disconnect the main wire harness 24P connector from
the dashboard wire harness.
3. Connect a voltmeter between the No. 5 terminal {+) of
the main wire harness 24P connector and 9round4. Turn the ignition ON (ll), and measure voltage.
ls thore 8.5 V or lcss tor tix second3 .Itor the ignition
switch has b6en turned ON lll)?
YESNO
Short to oower in the BLU wire ol the dashboald wiroharness; rgpaii the ham€ss.
To page 24-28
ar

)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

)
From page 24-31(Dl
DASHBOARD WIBE HARNESS
5P CONNECTOR
Wire side of temaletermtnars
From page 24-31(El
lr
SRS MAIN HARNESS18P CONNECTOR
Check for an open in the dashboatd wir€ harness:
1. Disconnect the dashboard wire harness 24P connector
from the main wire harness.
2. Check resistance between the No. 6 terminal of the SRS
main harness 18P connector and No 5 terminal of the
main wire harness 24P connector; there should be
0- 1.0 0.
Ooen in tha BLU wire ot the dashboard wire harness;
the dashboard wiie harness.
MAIN WIRE HARNESS Terminal side ot male termlnals
24P CONNECTOR
SRS MAII{ HARI{ESSlaP CONI{ECTOR
SRS MAIN HARNESS3P CONNECTOR
Check lho SRS indicator Gircuit input voliage:
1. Reconnect the SRS main harness 18P connector lo the
SRS unit.2. Connect a voltmeter between the No. 1 terminal (+) of
the dashboard 5P connector and ground
3. Turn the ignition switch ON (ll), and measure
ls there 8.5 V or more six seconds after lhe ignilion switch
has been turned ON (lll?
The Droblem h.s disappe.red due to disconnecting antl
connecting the connectors. Be sure all lerminals mako
oood contact, and recheck the syslem lsoe
iroubleshooting Intermittent Failure3 on page 2{-151'
Poor contact at the SRS main h.rn6s 18P connector; ch'ck
lI the problem k still present, replace the SRS main har'
Check for an open in the main wire harness:
1. Disconnect the SRS main harness 3P connector from the
main wire harness.
2. Check resistance between the No 6 terminal of the SRS
main harness 18P connector and No 1 terminal of the
SRS main harness 3P connector; there should be 0 - 1 0 o
ls the resistance as sp€cilied?
ODen in the BLU wire of the main wire hamess; tepair
the main wire harness.
Ooen in the SRS main harness; replace lhe SRS main har
24-33
.L

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

Troubleshooting
The SRS Indicator Light Doesn't Go Off - '98 - 00 Models (cont,dl
From page 24 351B)
Check the SRS indicetor circuit:1. Turn the ignition switch OFF.2. Bemove the gauge assembly, Do not dlsconnect thedashboard wire harness 5P connector from the gaugeassemoly.3. Turn the ignition switch ON (ll)4. Connect the dashboard wire harness 5P connector termi-nals No. 1 and No. 5 with a jumper wire.
Does the SRS indicator light go om
YESNO
Faulty SRS indicator light circuit in the 9au96 assembly;replace the SRS printed circuit board in the gaugeessembly.
Check for an open in the SRS indicator light circuit:r. rurn rne rqnrton swrtch ut-t-.2. Disconnect the dashboard wire harness 5p connectorfrom the gauge assembly.3. Check resistance between the No. 6 terminal of the SBSmain harness 18P connector and No. I terminal of thedashboard wire harness 5P connector; there should be0 1.0 0.
ls the resistance as soecified?
NOYES
(D)
To page 24 38(E)To page 24-38DASHBOARD WIRE HARNESS5P CONNECTOR
OASHBOARD WIRE HAR'{ESS5P CONNECTOR
llTf;rv;1c508.1#
I Bru lYErWire side of femaleJUMpER WIRE rerminats
SRS MAIN HARi{ESSI8P CONNECTOR
c807
24-36
DASHBOAED WIRE HARNESS
Wire side of female terminals

Troubleshooting
The SRS Indicator Light Doesn't Go Off -'98 - 00 Models (cont'dl
From page 24 36(D)
Check the SRS indicetor circuit input voltage:1. Reconnect the SRS main harness l8P connector to theSRS unit.2. Connect a voltmeter between the No. 1 terminal (+) ofthe dashboard 5P connector and ground.3. Turn the ignition switch ON (ll), wait for six seconds,then measure voltage,
ls th€re 8.5 V or more?
YESNO
The problem has disapp€ared due to di3connecting andconneding the connectors. Be su.e all te.minals makegood contact, and recheck the system {see T.ouble-shooting Inte.miftent Failures on page 24-15).
Poor contact et the SRS main harnass 18p connactori checkthe connector,. ll the connector is OK, substitute a known-good SRS unit,and recheck.' It the problem is still present, replace the SRS main haFness.
From page 24-36
Check for an open in the dashboard wir6 harness:1. Disconnect the main wire harness 24P connector fromthe dashboard wire harness.2. Check resistance between the No. 6 terminal of the SRSmain harness 18P connector and No. 5 terminal of the mainwire harness 24P connector; there should be 0 - 1.0 0.
ls the resistance as 3pecitied?
YESNO
Open in the BLU wire ot the dashboard wire harness;repair the dashboard wire harness.
Check tor an open in the main wire haanoss:1. Disconnect the SRS main harness 3P connector from themain wire harness.2. Check resistance between the No. 6 termanal of the SRSmain harness 18P connector and No. 1 terminal of the SRSmain harness 3P connector; there sho!ld be O - l.O 0.
ls the resistance a! specified?
YESNO
Open in the BLU wire of the m.in wire ha.ness: .eoairthe main wire harness.
Open in the SFS main hrrness; replace the SRS main har-ness.
DASHBOARD WIRE HARNESS5P CONNECTOR
c508
Terminal side of male lerminals
SRS MAIN HARNESS18P CONNECTOR
c807
c41 l
SRS MAIN HARNESS18P CONNECTOR
cao2
SRS MAIN HARNESS3P CONNECTOR
24-38
\
DASHBOARD WIRE HARNESS

.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