1997 HONDA CIVIC Front

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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

)
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

)
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
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24-45

)
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

)
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

Troubleshooting
DTC 2-1 and DTC 2-2 - With Front Passenger's Airbag
CAUTION: Whenever the ignition switch is ON (ll), or
has been turned OFF for less than thr€e minutes, be
careful not to bump th€ SRS unit; the airbags could
accid€ntally deploy and cause damage 01 iniuries.
Try 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 indi-cator light comes on for about six seconds and goes off.
Does the SRS indicator liqht stay on?
NOYES
Int€rmitl€nl failure, sFtem is OK at thb time. Soe Trouble-shooting Intermittent Failures on page 24-15.
Check tor an open in the pmi€nger's airbag inflator:1. Turn the ignition switch OFF.2. Disconnect the battery negative cable, then discohnectthe positive cable, and wait tor three manutes-3, Disconnect the front passenger's airbag connector lromthe SRS main harness {see page 24.1 ...4. Connect the special tool (2 0) to the SRS main harness2P connector,CAUTION: Do not disconnect the driver's airbag connec-tot,5. Reconnect the battery positive cable, then reconnect thenegative cable.6. Erase the DTC memory (see page 24-'!5).7. Read the DTC (see page 24-13).
ls DTC 2-l or DTC 2-2 indicated?
NOYES
Opon or increased rosistance in the pa$enger's airbaginflator; replace tho pass€nqor's airbaq lsee paEJe2a$71.
Io page 24-51
FRONT PASSENGER'SAIRBAG 2P CONNECTOB
- sz50r1A
07sAz - TB4011A{2 0 JACK}
24-50
MAIN HARNESS
I
o1

Troubleshooting
DTC 2-3 - With Front Passenger's Airbag
CAUTIONT Whanever ihe ignhion switch is ON lll), or
has been turnod OFF lor le33 than threo minutes. be
careful not to bump lhe SRS unit; ths airbags could
accidontally deploy lnd cause damage or inluries.
FRONT PASSENGER'SAIRBAG 2P CONNECTOR
- szsor la
{2 0 JACK)
Try to reproduce tho SRS indicator light:1. Erase the DTC memory (see page 24 15).2. Turn the ignition switch ON 1ll), and check that the SRS indi,cator light comes on for about six seconds and goes off.
Doe3 the SnS indicator light 3t.y on?
NOYES
Intermittort tailura, 3y3tem b OK at this time. S€e Trouble-shooting Intormittent Failuros on page 24-15.
Check tor a 3hort io another wire or dec.oasod relirtanct inth6 passonger's airbag inflato.:1. Turn the ignition switch OFF.2. Disconnect the battery negative cable, then disconnectthe Dositive cable, and wait for three minutes.3. Disconnect the tront passenger's airbag 2P connectorfrom the SFS main harness (see page 24-11).4. Connect the special tool (2 O) to the SRS main harness2P connector.CAUTION: Do not disconn€ct th6 driver's airbag connec-tor.5. Reconnect the baftery positive cable, then .econnect thonegative cable.6. Erase the DTC memory {see page 24-15).7. Read the DTC (see page 24 13).
l. DTC 2.3 indicated?
YESNO
Short io another wiao or d€creased rcsi3tanc6 in the prs-3enger's airbag intlator; repl.ce the passong.r's .irbaglsee page 2467).
To page 24-53
24-52