Dash HONDA INTEGRA 1994 4.G Workshop Manual

- Dash sensors- Cable reel- SRS unit
General Precautions
Carefully inspect any SRS part before you install it.Do not install any part that shows signs of beingdropped or improperly handled, such as dents, cracksor deformation:
- Airbag assembly {driver's and front passenger's)
Airbag Handling and Storage
Do not try to disassemble the airbag assembly. lt has noserviceable parts. Once an airbag has been operated(deployed), it cannot be repaired or reuseo.
For temporary storage of the airbag assembly duringservice, please observe the following precautions:
. Store the removed airbag assembly with the pad sur-face up.
!@ It the airbag is impropsrty stored facsdown, accidental deployment could propel the unit withenough force to cause setious iniury
Store the removed airbag assembly on a secure flatsufface away from any high heat source (exceeding
212"Fl1OO'Cl and free of any oil. grease, detergent or
CAUTION: lmproper handling or storage can internallydamage the airbag assembly, making it inoperativ€.ll you suspect the airbag assembly has been damagod,install a new unit and rgler to the Deployment/DigposalProcedures lor disposing of the dsmaged airbag.
Use only a digital multimeter to check the system. lfit's not a Honda multimeter make sure its output is 10mA (0.01 A) or less when switched to the smallestvalue in the ohmmeter range. A tester with a higheroutput could damage the airbag circuit or cause accidental deployment and possible injury.
Do not install used SRS parts from another car. Whenmaking SRS repai.s, use only new pans.
Except when performing electrical inspections,always disconnect both the negative cable and posi-
tive cable at the battery before beginning work.
Replacement of the combination light andwiper/washer switches and cruise control switch canbe done without removing the steering wheell
- Combination light and wiper/washer switchreplacement (see page 23-160).- Cruise control sevresume switch replacement {seepage 23-2491 .
The original radio has a coded theft protection circuit.Be sure to get the customer's code number beforedisconnecting the battery.
When reinstalling the SRS unit cover, be sure it snapstogether properly.
SHORT CONNECTON {REDI
23-271

Front Pas3enger's Side:
. Remove the glove box damper (see section 20), and
then remove the glove box.
. Disconnect the 3-P connector between the front oas-
senger's airbag and the SRS main harness, then con-
nect the short connector (RED) to the airbag side of
the connector.
SHORT CONNECTOR(REDI
SRS MAIN HARNESS
b,
Disconnecting the SRS Connector at the
Under-dash Fuse/relay Box:
CAUTION: Avoid br.aking the connoctor; it's doubte-
locksd.
1. First lift the connector lid with a thin screwdriver,
then press the connector tab down and pull the con-neclor out.
CONNECTORt_tD
To reinstall the connector. push it into position untilit clicks, then close its lid.
23-273

Sensor Inspection
CAUTION: Tak€ €xtra care whon painting or doing
body work in the ar€a bslow th6 dalhboard.
Avoid dirost exposure ot lh6 sonsors or wiring to hestguns, wolding, or spraying equipmont.
Di3connact both the nogativo and po3itivo b!ftery
cable3.
Connsct tho short conneclor(s) before working
bslow the da3hboard or nsar lhe dash sen3o.3.
After any degree of frontal body damage, inspect
both dash sensors. Replace a sensor if it is dented,
cracked, or deformed.
DASH SENSOR
a Be sure the sensors are installed securelv,
Inspection After Deployment
After a collision in which the airbags were deployed.
inspect the following:
1. Inspect the dash sensors for physical damage.
lf the sensors are damaged, replace them.
2. Inspect all the SRS wire harnesses, ReDlace, don'trepair, any damaged harnesses.
3. Inspect the cable reel for heat damage. lf there is
any damage. replace the cable reel.
4. After the car is completely repaired. turn the igni-tion switch on. lf the SRS indicator light comes onfor about six seconds and then goes off, the SRS
system is OK. lf the indicator light does not functionproperly, go to SRS Troubleshooting (next page).
BOLTS
23-275

Supplemental Restraint System (SRSI
Troubleshooting
Self-diagnosis Function
The SRS unit includes a self-diagnosis function. lf there
is a failure in the sensors. SRS unit, inflator, or their cir-
cuits, the SRS indicator light in the gauge sssembly
comes ON.
As a system check, the SRS indicator light also comes
on when the ignition is first turned ON to the (ll) posi-
tion. lf the light goes off after approximately six sec-
onds, the system is OK.
lf the SRS indicator lighr remains on (or fails to come on
in the system check mode), one of the SRS components
(or the wiring/connectors inbetween) is laulty
Troubleshooting Precautions
a Always use the test harness. Do not use test probes
directly on component connector terminals or wires;
you may damage them or the SRS unit.
a When connecting any of the test harnesses to the
system, push the connectors straight-in; do not bend
the connector terminals,
. Before disconnecting any part of the SRS wire har-
ness, connect the shon connector (RED) on the driv-
er's airbag. On cars equipped with a front passen-
ger's airbag, connect short connectors on the driver's
airbag and the front passenger's airbag.
SRS Indicator Light Troubleshooting
Possiblo conditions:
1. SRS indicator light does not come on at all - see
page 23-278.
2. SRS indicator light stays on constantly - see page
23-242.
3. SRS indicator light comes on in combination with a
failure of another electrical system (charging sys-
tem light). Check for damage/corrosion at the
under-dash tuse/relay box connector.
NOTE:
. Before starting the applicable troubleshooting. check
the condition of all SRS connectors and ground
points.
. lf the fault is not found after completing the applica-
ble troubleshooting, substitute a known-good SRS
unit and check whether the indicator light goes off.
23-276
MAIN HARNESS
Connecting the Short Connectors
@ To avoid.ccidental doploymont and pos.
siblo iniury. alway3 connect ths protoctive short con.
noctor to tha driver's airbag connectot and, on caf!
equippod with front passongor's airbag, conncqt Prolac-
tivs ghort connoctors to the d.ivsr's and tront passsn-
gar's airbag before working nsai any SRS wiring.
NOTE: The original radio has a coded theft protection
circuit. Be sure to get the customer's code number
before disconnecting the battery cables,
Disconnect the battery negative cable, then discon-
nect the oositive cable.
Connect the short connector(s) (RED):
Drivsr's Sido:
. Romove the accoss panel trom the steering
wheel, then remove the shon connector (BED)
1.
2.
from the panel.DRIVER'SAIRBAG
CABLE R€EL
3-P
ACCESSPANELSHONT CONNESTOR(REDI
. Disconnect the connector between the driver's
airbag and cable reel, then connect the short
connector {RED} to the airbag side of the connec-
tor.
Front Pas€ngo/s Sido:
. Remove the glove box damper (see section 20),
and then remove the glove box.
. Disconnect the connector between the front pas-
senger's airbag and SRS main harness, then con-
nect the short connector (RED) to the airbag side
of the connector,SHORT CONNECTOR

Supplemental Restraint System (SRS)
Troubleshooting
The SRS Indicator Does Not Light
CAUTION: Uss only a digital multimeter to check the system. lf it's not a Honda multimeter, make sure its output is
10 mA {0.01 Al or less when switched to the smallest value in the ohmmeter rang€. A tester with a highor ouiput could
damage the airbag circuit or cause accidental airbag deployment and possible iniury
NOTE: The original radio has a coded theft protection circuit. Be sure to get the customer's code number before discon-
necting the battery cables.
Dilconn6ct the battory negaiivecable rnd thon tho positive
cable.Connest the short connectorlslto tho airbaglsl (seo p6ge 23-272t.
R€connect the batterY Positivecable and then the negativecable.
Turn the ignition switch ON (ll).
Does the brake systemlight come on (in thegauge assembly)?
Inspect the No. l5 110 A) fuse(under-dash tuse/relay box).
ls No. 15 fuse OK?Turn the ignition switch OFF.
Repair open in dashboard wir6harness between the No. 15 tus€and gauge a3sombly.
Disconnect the SRS main har-ness l8-P connector from theSRS unit.
Turn the ignition switch ON (ll).
Does the SRS indicatorlight come on?The SRS unit is faully.
Turn the ignition switch OFF.
SRS UNIT
SRS MAIN HARNESS18.P CONNECTOR
Io page 23'2791
23-274

SRS MAIN HABNESS(From plgr 23.27E1
DASHBOARD WIFE HARNESS5-P CONNECTOR
8tU{ +
@
I:
Disconnoct tho SRS m.in h6,-ng88 {-P conn6clor f,om thomrin wiao harn6$.
Tum lhq ignition switch ON (lll.
Doo3 tho SRS indic.torlight com6 on?Th. SRS rnlin h..n... i.t ulty.
Tu.n tho ignition switch OFF.
Romovo tho g!u0c !ss.mblyth6n inrpoct ths SBS indicatorlight bulb.
Raplaca lh. indlc.toi llOht birlb.
Connoct ! voltmotoa bdwoln thrNo. 5 lormin.l (+) of tho 5-P con-noctor rnd body ground (-).
Turn the ignition switch ON (ll).
Moaauro tha voltrgo bolwcon thaNo. 5 termin.land body g.ound.
MAIN VNREHARNESS
(To p.go 2+280)
23-279

(From page 23-279)
Short in 8LU wire ol the da.h-borrd wi.o halno3s. Roplaca thad.3hbosrd wiro ha.no$.ls there lesslhan 8.5 V ?
Turn the ignition switch OFF
Connect tho voltmeter betweenthe No. 1 terminal (+) and the No.3 terminal (-) of the dashbo€rdwire harness 5-P connector.
Turn the ignition switch ON (ll).
Measure the voltage between theNo. 1 terminal and th€ No.3 ter-mrnal,
Ch6ck for continuity between th6No. 3 terminal and body ground.ls there battery vohage?
R.prir opcn in tho BLK wir. (No.
3 tarmin!l) batwaan th. gluga
araambly and body ground otlook tor. poor ground 1G201,cilol I.
Turn the ignition switch OFF.
Rcprir open in th. YEL wi.o lNo.t t6rminall of the d.3hbo.rdwir6 hamer! batwaen tho gtugo
r3s6mblv rnd tho No. 15 ll0 Alfu36.
Supplemental
Troubleshooting(cont'd)
{To page 23-281}
RestraintSystem (SRSI
DASHBOARD WIRE HARNESS
View lrom wire side.
YELI+, BLK{-I
23-280

Supplemental Restraint System (SRSI
Troubleshooting (cont'd)
NOTE: Do not disconnect the airbag when checking SRS unit voltages.
Without lront Passongor's sirbag:
Modo A: Open in one cowl sonsor conlact
r The SRS unit is faultY. Substitute a known-good SRS
unit and recheck the voltages according to the chart
on page 23-283.
Mods B:
. Short to driver's or Passonger's aitbag inflator body
(body groundl
. Short in dash sonsor
. Opsn in both cowl sgnsor contacts
NOTE: The original radio has a coded theft protection
circuit. Be sure to get the customer's code number
before disconnecting the battery cables.
1. Disconnect the battery negative cable and then the
positive cable. Then connect the short connectots(s)
(RED) to the airbag(s) (see page 23-272).
2. Connect Test Harness B between the SRS unit and
A
B
SRS main harness 18-P connector.SRS UN]T'...SRS MAIN HARNESS18.P CONNECTOR
3. Reconnect the driv€r's airbag connector, then check
continuity between the B1 terminal and body
ground, and b€twesn the 87 terminsl and body
grounq,
TEST HABT{ESS B
. lf there is continuity at either terminal, go to step
o.
. lf there is no continuity at sither terminal'
- go to step 5 (without front passonge/s airbag)'
- go to step il (with front passenger's airbag)'
Reconnect the front passonger's sirbag connector,
then check continuity betwo€n ihs 82 t€rminal and
body ground, and between the 88 terminal and
body ground.
lf there is continuity at either terminal, go to step
10.
lf there is no continuity at either terminal, go to
step 5.
lSAOHvcc58saoc10BUCI12Gto13toct4
4,35.65.512.O- 14.35,6-7.311.5- 14,5oa_5-13.68.:aro.9
2.43.74.55.5
't2.o
14.33.74.911,5-14.5o2.O-8.58.4-r0.9
o4.55,512.O- 14.3o11.5-14,5o2.O-8.58./a-r0.9
4.6-11.3-5.512.O- 14.311.2- 14.611.514,5o2.O8./t-r0.9
5.74.5t2.o14,3-9.7tt.5- 14_5o-8.58.1-10.9
4.611.34.5- 5.512.0- 14.33.7-4.91t.514.5o2.O-8.5a.a-r0.9
4.3oo5,6-7.311.514,5o2,O8.it,r0.9H ll{o. 26 lo Al o.
4.3-5.64.5-5.512.O- 14.3-7.3t1.5- 14-5oo ta,5- 13.0tE,4-10.9
23-284

12.Connect Test Harness D between the dash sensorand SRS main harness 2-P connector. Check conti-nuity between the No. 1 terminsl and body ground,
8nd between the No.2 terminal and body ground,
sRs MA[{HARNESS2-P OOTTNECTOR
TEST HARNESS Do?LAiZ - SL()a(xt
. lf there is continuity at either terminal, the dashsensor is faulty. Replace it and recheck the volt-ages according to the chan on page 23-293.
. lf there is no continuity at either terminal, theSRS main harness is faulty. Replace it andrecheck the voltages according to the chart onpage 23-283.
Measure the resistance between the l6ft dash sen-sor terminals B'12 and Bl6, and between the rightdash sensor terminals B4 and 86.
IEST HARNESS B07MAZ - SPqt500
TEST HARNESS DotlA:z - sl(,(x)
rffi-l
??
t'l
o lt rssistance is 3.8 - 4.2 kO for both sensors. theSRS unit is faulty. Substitute a known-good SRSunit €nd recheck the voltages according to th€chart on page 23-283.
o lf resistancs is l6ss thsn 3.8 kO for either sensor.go to step 14.
1il. Connect Test Harness D between the dash sensorand SRS inain harness 2-P connector. Measure theresastance between the No. 1 terminal and No. 2 ter-minal.
SRS MAINHARNESS2.P CONNECTOR
TEST HAR ESS D07LAZ - SL.{)a(xl
TEST XARNESS DotlA:z - sl4|)4tx)
lf resistance is 3.8 - 4.2 kO, the SRS main harnessis faulty. Replace it and recheck the voltagesaccording to the chan on pag€ 23-283.
lf resistance is less than 3.8 kO, the dash sensoris faulty. Replace it and recheck the vottagesaccording to the chart on psge 23-283.
(cont'd)
23-287

Supplemental Restraint System (SRS)
Troubleshooting (cont'd)
Modg C: Shon in one cowl son3ol, or open in both dash
sensors
Mode D: Open in ono da3h sensol
NOTE: The original radio has a coded theft protection
circuit. Be sure to get the customer's code number
before disconnecting the battery cables
1. Disconnect the battery negative cable and then the
positive cable. Then connect the short connector(s)
to the airbag(s) (see page 23'2721.
2. Connect Test Harness B between the SRS unit and
SRS main harness 18-P connector.
23-2AA
3. Measure the resistance between the left dash sen-
sor terminals 812 and 816, and between the right
dash sensor terminals 84 and 86.
lf resistance is more than 5 kO for eiiher set of
terminals, go to step 4.
lf resistance is less than 5 kO tor both sets of ter-
minals, the SRS unit is faulty. Substitute a
known-good SRS unit and recheck the voltages
according to the chart on page 23-283.