1997 HONDA CIVIC For

Troubleshooting
Diagnostic Trouble Code (DTCI Ghart -'96 - 97 Models (cont'd)
NOTE:* l: In case of an intermittent failure DTC g-1, it means there was an internal failure of the SRS unit or a faultv SRS indicator light circuit. Do the troubleshooting for intermittent failures (see page 24-15).*2: lt both DTC 9-2 and DTC 5-1 are indicated, do the troubleshooting for DTC g-2.*3: Apply to the '97 model coupe HX and DX.*4: DTC cannot be read with a Honda PGM Tester; check by jumping the SCS service connector.
24-18
.
Possiblg cause Cortestive action
5 3 I Internal failure of the SRS unitSRS unit
replacement
lnternal failure of the SRS unitSRS unit
replacement
Internal failure of the SRS unit
Internal failure of the SRS unitSRS unit
replacement
Internalfailure of the SRS unit ortwo failures at atime
8-6*3 Internalfailure ofthe SRS unit
Internal failure of the SRS unit
Faulty SRS power supply (VB line)
SRS unit replacement code (SRS unit must not
be used any longe.)
J

Troubleshooting
Diagnostic Trouble Code (DTC) Chart -'98 - 00 Models {cont'dl
NOTE:* 1: In case of an intermittent failure DTC 9-1, it means there was an internal failure of the SRS unit or a faulty SRS indica-
tor light circuit. Do the troubleshooting for intermittent failures (page 24-'15).*2: In case of an intermittent failure DTC 9-2, it means there was an internal failure of the power supply {VB line). Do the
troubleshooting for intermiftent failures.*3: DTC cannot be read with a Honda PGM Tester; check by jumping the SCS service connector.
24-20
\
SRS indicator lightDTCPossible causeCorrectiYe actionSee page
comes on
5-1lnternal failure of the SRS unitSRS unit
replacemenl24-765-4
6-1
lnternal failure of the SRS unitSRS unit
replacement24-7 66-2
o-5
6-4
7-1
lnternal failure of the SRS unitSRS unit
replacement24-76
7-3
8-1lnternal failure of the SRS unitSRS unit
reptacement24-7 68-2
8-6Internal failure of the SRS unit or two failures
at a trmeTroubleshooting24-62
g_1*r *3lnternal failure of the SRS unitSRS unit
replacement24-7 6
9-2+2 *3lnternal failure of the SRS unit5l|5 Untr
replacement24-76
10-1SRS airbags deployed (SRS unit must be
reDlaced)
SRS unit
replacement24-76

Troubleshooting
Diagnostic Trouble Code (DTCI Ghart -'98 - 00 Models (cont'd)
NOTE:*l: In case of an intermittent failure DTC 9-1. it means there was an internal failure of the SRS unit or a faultv SRS indica-
tor light circuit. Do the troubleshooting for intermiftent failures (pa9e 24-15).*2: In case of an intermittent failure DTC 9-2, it means there was an internal failure of the power supply (VB line). Do thetroubleshooting for intermittent failures.*3: DTC cannot be read with a Honda PGM Tester; check by jumping the SCS service connector.
SRS indicator lightDTCPossible causeCorective actionSeo page
comes on
5-2
53
54
lnternal failure of the SRS unitSRS unit
replacement24-7 6
6-1
6-2
_
64
Internal failure of the SRS unitSRS unit
replacement24-16
n
-
8l
8S
9_1*r *3
Internal failure of the SRS unitSRS unit
reptacement24-76
Internal failure of the SRS unitSRS unit
replacement24-76
Internal failure of the SRS unitSRS unit
replacement24-76
Internal failure of the SBS unitSRS unit
reptacemenr24-76
10-1SRS airbags deployed (SRS unit must be
reDlaced)
SRS unit
replacement24-76
24-22

Troubleshooting
Diagnostic Trouble Code (DTG) Chart -'98 - 00 Models (cont'dl
NOTE:*'l: In case of an intermittent failure DTC 9-1. it means there was an internal failure of the SRS unit or a faulty SRS indica-
tor light circuit. Do the troubleshooting for intermiftent failu.es (page 24-15).*2: In case ot an intermittent failure DTC 9-2. it means there was an internal failure of the power supply (VB line). Do the
troubleshooting for intermift ent failures.*3: DTC cannot be read with a Honda PGM Tester; check by jumping the SCS service connector.
24-24
a,
SRS indicator lightDTCPossible causeCorective actionSee page
comes on
lnternal failure of the SRS unitSRS unit
repracemenl24-765-4
6-3lnternal failure of the SRS unitSRS unit
reptacemenr24-766-4
Internal failure of the SRS unitSRS unit
replacement24-7 6
8-1
lnternal failure ot the SRS unitSRS unit
replacement24-7 68-2
8-6
g_1*r *rInternal failure of the SRS unitSRS unit
replacement24-16
lnternal failure of the SRS unitSRS unit
repracemenl24-76
10-1SRS airbags deployed (SRS unit must be
.eplaced)
SRS unit
reptacemenl24-76

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

Troubleshooting
The SRS Indicator Light Doesn't Come On (cont'dl
Frcm page 24.21
Ch6ck tho wire h6rn6s of tho SRS indicator light circuir (21:
1. Turn the ignition switch OFF.2. Disconnect the SRS main harness 3P connector from themain wire harness,3. Connect a voltmeter between the No. 1 terminal (+) ofthe SRS main harness 3P connector and ground.4. Turn the ignition switch ON (ll), and measur€ voltage.
13 thore 8.5 V or less for 3ir sacond3 aftgr tho ignitionswitch h.3 b.en turned ON llllT
YESNO
Short to power in tho BLU wi.e of lhe m.in wiro hrnroas;r€orir tho ham6as.
Chock the wi.e harness otthe SRS indicator ci.cuit l3l:1. Turn the ignition switch OFF.2. Disconnect the banery negative cable. th6n the positivecable, and wait three minutes.3. Disconnect the driver's (and front passenger's) airbag con-nector{s} (seo page 24-11).4. Disconnect the SRS main harness 18P connector trom
5. Connect a voltmeter betwo€n the No. 6lerminal {+} ofthe SRS main harness 18P connector and ground.6. Turn the ignition switch ON (ll), and measure vollagg. Thereshould be 0.5 V or less.
ls voltago as specified?
YESNO
Faultv SRS unh; roplic. the unit l!€e paqo 2+76).
Shoft to Dowar in tha BLU wire ot tho SRS mein h.rn.r3:reobce the hrlne3s,
24-2a
SRS MAIN HARNESS18P CONNECTOR
MAIN WIRE I{ARNESS3P CONNECTOR
SRS MAIN I{ARNESS3P CONNECTOR
c802
SRS UNIT
SRS MAIN HARNESS 1AP CONNECTOR
-

)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 -'96 - 97 Models (cont'dl
From page 24-31
Ch6ck for a shon lo ground in tho m.in wire harness:1. Disconnect the dashboard wire harness 24P connectorfrom the main wire harness,2. Check resistance between the No. 5 terminal of the mainwire harness 24P connector and ground. There should be1 M0 or more.
Short to ground in the dashboard wire harness; repairthe dashbo..d wire harnoss.
SRS MAIN HARNESS3P CONNECTOR
Wire side oI femaleterminals
24-32
\
MAIN WIRE HARNESS
HARNESS
Check for a short to ground in the SRS main h..ness:1. Disconnect the SRS main harness 3P connector from themain wire harness,2. Check resistance between the No. 1 terminal of the SRSmain harness 3P connector and ground. There shorrld be1 fu,|0 or more.
ls the resistance as specifisd?
Short to ground in the main wire harnoas; r€pair themain wire harness.