dtc HONDA CIVIC 1998 6.G Workshop Manual

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

)r
l-J
SIEMENS SRS Unit
SRS indicator lightDTCPossible cause Corregtive astionSee page
doesn't come on
none(doesn't
come on)
FaulW SRS indicator light circuitTrou bleshooting24-26
comes on
none*3
(doesn't
go ofl)
Faulty SRS indicator light circuit, internal
failure of SRS unit, faulty SRS power supply
{VB line)
Troubleshooting24-34
1-1Open or increased resistance in the driver's
airbag inflator
Troubleshooting
24,42
1-3Short to another wire in the driver's airbag
inflator or decreased resistance24-44
1-4Short to power in the driver's airbag inflator24-46
Shon to ground in the driver's airbag inflator24 48
2-1Open or increased resistance in the passengers
airbag inflator
Troubleshooting
24-50
2-3Short to another wire in the passenger's
airbag inflator or decreased resistance24-52
2-4Short to power in the passenger's airbag
inflator24-54
2-5Short to ground in the passenger's airbag
inflator24-56
,-. ^
l) t (cont,d)
24-23
d

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

)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
DTC 1-1 and DTG 1-2
CAUTION: Whenever the ignition switch is ON 0l), orhas been turned OFF for le33 than three minutes, becareful not to bump the SRS unit; the airbagls) couldaccidentally deploy and cause damage or inluries.
REEL2P CONNECTOR
AZ - SZ5011A
07sAz-TB{0t1At2 0 JACKT-
CABLEREEL2P CONNECTOR
07TAz - SZ5011A
DRIVER'S AIRBAG
SRS MAIN HARNESS
Try to reproduc€ the SRS indicator light:1. Erase the DTC memory lsee page 24,'15).2. Turn the ignition switch ON {ll), and check that the SRS indi-cator light comes on lor about six seconds and goes off.
Does the SRS indicator liqht 3tav on?
Intermittent lailure. system is OK at this time. So€ TloubleIntermittent Failur6 on Deqe 24-15.
Check for en open in th€ driver's airbag inllator:1. Turn the ignition switch OFF.2. Disconnect the battery negative cable, then disconnect thepositive cable, and wait for three minutes.3. Disconnect the driver's airbag 2P connector from the cablereel 2P connector.CAUTION: Do not disconnect the pa9,!eng6.,s ailbag con-nector.4. Connect the special tool {2 0)to the cable reel 2P connec,tor.5. Reconnect the battery positive cable, then reconnect thenegative cable,6. Erase the DTC memory {see page 24 15}.7. Read the DTC {see paqe 24-13).
ls OTC 1-1 or DTC 1-2 indicatod?
Open or incroas€d resistanc€ in the driver's ai.bag inoa-tor; r€place the d ve/s airbag lse6 pege 24€?).
Check for an opgn in the cabl6 reel:1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.2. Disconnect the special tool {2 O) from the cable reel 2pconnector,3. Remove the dashboard lower cover, and disconnect thecable reel 2P connector from the SRS main harness.4. Connect the special tool {2 0} to the SRS main harness2P connector, {cont,
To page 24-43
(2 0 JACK)
24-42
l!

)
1J
From page 24-42
Check for an opgn in the cabl6 reel (cont'd):
5. Reconnect the battery positive cable, then roconnect the
negative cable.6. Erasethe DTC memory (see page 24 15i
7. Read the DTC (see page 24-13).
l. DTC 1-l or DTC 1-2 indicrt.d?
Opan or incraGad rcsbtanca in tha crbla raal; rapllca
Chcck lor .n oDcn in th. SBS mtin harne$i
1. Disconn€ct the battery negative cabl€, then disconnect
the positive cable, and wait tor three minutes
2, Disconnect the lront passgnger's airbag connoctor from
the SRS main harness (with front pssseng€r's airbag).
3. Disconnect the SRS main harn€ss 18P connector from
the SRS unit. Do not disconnect the special tool {2 0)
from the SRS main harness 2P connector.
4. Check resistance betlveon terminals No. 1 and No 13 ot
the SRS main harness 18P connector.
There should be approx. 2.0 - 3.0 O.
Poor contact rt tha SRS main harna*t 18P connactor;
chack tho clnnactot,. It th. conn.ctol b OK. tubttitut. a known-good SRS
unit. end rcchock..lf the problem is still prcsent, replace tho SRS main
harnoss.
Ooen or incr6asad r.si3tlnca in tha SRS mlin hatnaar;
lfr
24-43

Troubleshooting
DTC 1-3
CAUTION: Whenever the ignition switch is ON {lll, orhas been turned OFF lor less than thrEe minutes, becaroful not to bump the SRS unit; the airbag(s) couldaccidenlally deploy and cause damage 01 iniuries.
DRIVER'S AIRBAGASSEMALY
REEL2P CONNECTOR
AZ - SZ5011A
07saz - TB4011A{2 0 JACK)
CABLEREEL2P CONNECTOR
07TAZ - SZ5011A
TrV to reproduce the SRS indicator light:1. Erase the DTC memory (see page 24-15).2. Turn the ignition switch ON (ll), and check that the SRS indicator light comes on for about six seconds and goes off.
Does the SRS indicalor light stav on?
YESNO
Intermittent lailure. system is OK ai this tim€. Se€ Troubl€-shooting Intermittent Failures on page 24-15.
Check tor a short lo another wire in the drivo.'s eirbrg in{la-
1. Turn the ignition switch OFF.2. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.3. Disconnect the driver's airbag 2P connector from thecable reel 2P connector,CAUTION: Do not disconnect the passenger's airb.gconnector,4. Connect the special tool (2 0)to the cable reel 2P connector,5. Reconnect the baftery positive cable, then reconnect thenegative cable,6. Erase the DTC memory (see page 24 15).7. Read the DTC (see page 24-13).
ls DTC 1-3 indicated?
NOYES
Shon in the driver's airbag intlator; replace the driv-er's airbag {see page 24-67}.
Check lor a short in the ceble reel:1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.2. Disconnect the special tool (2 O) from the cable reel 2p
3. Remove the dashboard lower cover, and disconnect thecable reel 2P connector from the SRS marn naroess.4. Connect the special tool (2 O) to the SRS main harness2P coonector. {cont,di
fo page24-45
SRS MAIN HARNESS
24-44
07sAz - TBr011At2 0 JACKI

)
Ftom page 24-44
Check for a shon in the cable reel lcont'dl:5, Reconnect the batterv Dositive cable, then reconnect thenegative cable.6. Erase the DTC memory (see page 24-15).7. Read the DTC lsee page 24'13).
Ch€ck tor a shon in the SRS main harness:1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.2. Disconnect the front passenger's airbag connector fromthe SRS main harness (with front passenger's airbag).3. Disconnect the SRS main harness 18P connector trom
the SRS unit. Do not disconnect the special tool (2 0)
from the SRS main harness 2P connector.4. Check resistance between terminals No. 1 and No. 13 ofthe SRS main harness '18P connector.There should be aDorox. 2.0 - 3.0 0.
SRS unit; replace lhe SRS unit lsee ptge 21-
Short in the SRS m.in ha.ness; roplace the SRS mein hal-
Short in the cable reel; replace the cable reel (see
page 21-721.
SRS UNIT
IJ
o1|
24-45