1998 HONDA CIVIC Short to ground

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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 24-46
Chock for a short to power in the cabls roel lcont'dl:5. Reconnect the battery positive cable, then reconnect thenegative cable.6. Erase the DTC memory lsee page 24-15).7. Read the DTC (see pa1e24-131.
b DTC 1-4 indicat€d?
YESNO
Short to power in tho cable reel; roplac. tho cable reel
lsee Dase 24-721.
Chock for e short to powot in the SRS main hornoas:
1. Disconnect the battery nogative cable, then disconnect
the positive cable, and wait for three minutes.2- Disconnect the front passenger's airbag connector lrom
the SRS main harness (with front passenger's airbag).
3. Remove the special tool (2 0) trom the SRS main harn€ss
2P connector./t. Disconnect the SRS main harness 18P connector from
the sRs unit.5. Reconn6ct the battery positive cable, then reconnect the
negative cable.6. Connect a voltmeter between the No. 1 {+i terminal of
the SRS main harness 18P connector and body ground.
7. Turn the ignilion switch ON lll), and measure voltageThere should be 0.5 V or less.8. Turn the ignition switch OFF.9. Connect a voltmeter between the No. 13 (+) torminal ol
the SRS main harness 18P connector 8nd body ground.
lO.Turn the ignition switch ON (ll), and measure voltage
There should be 0.5 V or less.
Aro voltrges a3 specified?
YESNO
Fauftv SRS unh; roplacc tho SRS unh {soe pago 2+761'
Short to power in the SRS main h.rness; .eplace rhe SRS
main harness.
SRS UNIT
IJ
a0
24-47

Troubleshooting
DTC 1-5
CAUTION: Whenever the ignition switch is ON {ll). or
has been turned OFF for less than three minutes, be
caretul not to bump ths SRS unit; the airbag(sl could
accidentally deploy and cause damage or iniuries.
J
DRIVER'S AIRBAG2P CONNECTOR
SRS MAIN HARNESS2P CONNECTOR
DRIVER'S AIRBAGASSEMBLY
REEL
07sAz - TB40't1A(2 0 JACK)
2P CONNECTOR
AZ - SZ5011A
CABLEREEL2P CONNECTOR
I
07TAZ - SZ5011A
Try to rep.oduce the SRS indicator light:1. Erasethe DTC memorv (See page 24'15).2. Turn the ignition switch ON (ll), and check that the SRS indicator light comes on tor about six seconds and goes off.
Ooes the SRS indicator light stay onl
YESNO
Intermittent lailure, system is OK at this time. See Trouble-shooting lntormittent Failure3 on page 24-15.
Check for a short to ground in lh€ driver's airbag inllator:1. Turn the ignition switch OFF.2. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three rninutes.3. Disconnect the driver's airbag 2P connector from thecable reel 2P connector.CAUTION: Do not disconnect tho p.ssenger's airbagconnectoa.4. Connect the specialtool (2 0)to the cable reel 2P connector.5. Reconnect the batlery positive cable, then reconnect thenegative cable-6. Erase the DTC memory (see page 24-15).7. Read the DTC (see page 24-131.
ls OTC 1-5 indicatedT
YESNO
Short to ground in the drive/s airbeg inflator; r€pl.ce thedriver's.iib.g (see page 24d1.
Check lor a short to ground in the csble reer:l. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.2. Disconnect the special tool {2 (}) from the cable reel 2P
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'd).
To page 24-49
{2 0 JACK)
24-44
.I

)
TJ
From page 24-48
Check for a ahort to ground in th. cabl. r.el (cont'd):
5. Reconnect the battery positive cable, then reconnect thenagativ€ cable.6. Erase the DTC memory (see page 24-15).7. Read the DTC (see page 24-13).
b DTC 1-5 indicli.d?
YESNO
Short to ground in tho crblc rocl; rophce the crble roel
k c orsa 2+721.
Chock for e short to ground in tha SRS main harneas:1. Disconnect the battery negative cable, then disconnoctthe positive cable, and wait lor three minutes.2. Disconnect the tront passenger's airbag 2P connectorfrom the SRS main harnsss {with front passeng€r's
airbag).3 Romove the specialtool (2 0)trom th6 SRS main harness2P connoctor,4. Ch€ck resistance between the No. 1 terminal of the SRSmain harness 18P connector and ground. and betwgenthe No. 13 terminal ofthe SRS main harness'l8P connec-tor and grouncl.
There should bo I Mo or more,
la tha raidrnc! .3 rDccified?
NOYES
Flulv SRS unit rcpl.c. th. SRS unit {r€e prg.2+161,
Shon to ground in th. SRS m.in h.rno$; r.pl.ce tho SRSmain harnaas.
SRS UN]T
Ir,
24-49

)
Ftom page 24-54
Check lor e short to power in lhe SRS main harness:
1. Disconnect the battery negative cable, then disconnect
the positive cable, and wait Ior three minutes.
2. Disconnect the driver's airbag 2P connector lrom the
cable reel 2P connector.3. Disconnect the SRS main harness 18P connector trom
the sRs unit.4. Remove the special tool (2 o) from the SRS main harness
2P connector,5. Reconnect the baftery positive cable, then reconnect the
negative cable.6. Connect a voltmeter between the No. 10 (+) terminal of
SRS main harness 18P connector and ground.
7. Turn the ignition switch ON lll), and measure voltage
There should be 0.5 V or less.
L Connect a voltmeter between the No. 14 (+) terminal of
the SRS main harness 18P connector and ground, and
measure voltage. There should be 0.5 V or less.
A16 voltages as specified?
YESNO
Fauftv SRS unit; repl.ce the SRS unil (see ptge 24-761
Shon to power in th. SRS main harness; roplace the SRS
main hanes3,
SRS UNIT
1J
Itt
24-55

Troubleshooting
DTC 2-5 - With Front Passenger's Airbag
CAUTION: Whenever the ignition switch is ON 0l). orhas b€6n turned OFF tor loss than three minutes. becareful not to bump tho SRS unit; th€ airbags couldaccidentally deploy and cause damage or injuriss.
FRONT PASSENGER'SAIRBAG 2P CONNECTOR
tl
AZ - SZ50114
07sM - TB4011A{2 0 JACK)
24-56
I
MAIN HARNESS
T.y lo reproduce the SRS indicator light:1. Erase the DTC memory (see page 24,15).2. Turn the ignition switch ON l), and check thatthe SRS indi-cator light comes on for about six seconds and ooes off.
Intermiftem f.ilure, ty3tom ir OK at this timo. See Trouble-Iniermittent Failuro3 on paqe 24-15.
7. Read the DTC {see page 24-13).
Check to. a short to g.ound in the passenger,s ai.bag inflator:1. Turn the ignition switch OFF.2. Disconnect the battery negative cable, then disconnectthe poshive cable, and wail for three minutes.3. Disconnect the fronl passenger,s airbag 2p conneclorlrom the SRS main harness {see page 24 l t ).4. Connecl the special tool (2 0) to the SRS main harness2P connector,CAUTION: Do not disconnect the drivor,s airbag connec_tor.5. Reconnect the battery positive cable, then reconnect thenegative cable.6. Erase the DTC memory (see page 24 15).
Short to ground in the p8,s€nger,s ai.bag infleto.; replaoerhe passenger's airbag ls€o page24{7).
To page 24-57
o!

)From page 24-56
Check lor a short to ground in tha SRS main haino$:
1. Disconnect th€ battery negative cable. then disconnect
the positive cable, and wait for three minutes
2. Disconnect the driver's airbag 2P connector from the
cable reel 2P connector'3. Disconnect the SRS main harness 18P connector from
the sRS unit.4. Remove the special tool (2 0) from the SRS main harness
2P connector,5. Check resistance b€tween the No. 10 terminal ol the SRS
main harness 18P connector and ground, and between
the No. 14 terminal ot the SRS main harnoss 18P connec
tor and ground. There should be 1 N/10 or more'
k tho rod.tanco .3 3pocified?
YESNO
Faulty SRS unit; topl.co the SRS unit (seo page 24-761'
Short to giound in the SRS msin hamets; replacc th€ SBS
main harno33.
SRS UNlT
SRS MAIN HARNESS18P CONNECTOR
O l,t
24-57