light HONDA INTEGRA 1994 4.G Workshop Manual

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

Supplemental Restraint System (SRSI
Troubleshooting (cont'dl
SRS Indicator Light Stays on Continuously
NOTE: Before troubleshooting, make sure that battery
voltage is 12 V or mo.e. Otherwise you'll obtain wrong
test readings.
1. Make a photocopy of the chart on page 23-283,
2. Connect Test Harness A to the SRS unit as shown.
Tu.n the ignition switch ON (lll.
. Voltages in the chart assume the car's "battery
voltage" is about 12 volts. Less than 12 volts will
result in different or possibly talse readings.
. Do not disconnect the airbags ftom the circuit
when checking SRS unit voltages.
First, check for voltage between Test Harnoss
Terminal No. 12 (+) and ground (-).
. lf no voltage is indicated, go to step I and contin-
ue checking all the other terminals.
o lf vottsge is indicated, there is a poor ground at
the SRS unit. Read the following NOTE, and then
go on to step 5.
I21I
tolll2t3tlrt
23-282
TEST HANNESS
NOTE: The original .adio has a coded theft protection
circuit. Be sure to get the customer's code number
before disconnecting the battery cables.
Before disconnecting any pan of the SRS wire har-
ness, connect the short connecto(s) {RED) to the
airbag(s) (see page 23-2721.
Connect Test Harness B between the SRS unit and
SRS main harn€ss 18-P connector.
7. Check for continuitv between the 85 terminal and
body ground, and the Bl5 terminal and body
ground.
TEST HARNESS B07MAZ - SPqrS{X)
lf there is continuity at either terminal, the SRS
unit is faulty. Replace it and check the voltages
according to the chan on page 23-283.
lf there is no continuity at either terminal, the
SRS unit ground, the SRS unit component
grounds or the SRS main harness is faulty
Check the grounds (check wire and control unit
mounting bolts) and, if necessary, replace th€
SRS main harness. Then check the voltages
according to the chart on page 23-283

Supplemental Restraint System (SRSI
Airbag Assembly Replacement (cont'd)
5. Remove and properly store the short connector(s),
then reconnect the airbag connector(s).
Front Pass€ng€r's Side:
. Remove the short connector (RED) from the front
passenger's airbag connector, then connect the
airbag 3-P connector to the SRS main harness 3-P
connector.
. Then reinstall the glove box on the dashboard,
Driver's Side:
Remove the short connector (RED) from the driver's
airbag connector, then connect the airbag 3-P con-
nector to the cable reel 3-P connector.
CABI-E REEL3-P CONNECTOR
SHORT CONNECTORIRED)
DRIVER'SAIRBAG 3.PCONNECTOR
Attach the short connector (RED) to the access panel,
then reinstall the panel on the steering wheel.
SHORT CONNECTOR
FRONT PASSENGER'S ,,'AIRBAG 3.P CONNECTOR
Connect the battery positive cable, then the nega-
tive cable.
After installing the airbag assembly, confirm proper
system operataon:
. Turn the ignition ON (ll): The instrument panel
SRS indicator light should come on for about six
seconds and then go off.
. Make sure both horn buttons work.
a Take a test drive and make sure the cruise con-
trol sevresum€ switch works.
Enter the code number to restore radio oDeration(see page 23-191).
7.
8.
23-294

Supplemental Restraint System (SRSI
Airbag Assembly Disposal (cont'd)
Connect a l2 volt batterv to the tool:
. lf the green light on the tool comes on, th€
airbag igniter circuit is d€fective and cannot
deploy the airbag. Go to Dsmag€d Airbag
Special Procedure.
. lf the red light on the tool comes on, the airbag is
ready to be deployed.
Push the tool's deployment switch. Th6 sirbag
should deploy (deployment is both highly audible
and visibls - a loud noise and raDid inflation of the
bag, followed by slow deflationl.
. lf audible/visible deploym€nt happsns and the
green light on the tool comes on, continus with
this Drocedure.
. lf the airbag doesn't deploy, yet the green light
comes ON, its igniter is dofectiv€. Go to
Damaged Airbag Special Procedure.
@ During deploym€nt, the airbsg assom-
bly can become hot enough to burn you. Wait thirty
minutes after deployment beforo touching the
assemblv.
Dispose of the complete airbag sssembly. No pan
of it can be reused. Place it in I sturdy plastic bag
and seal it securelv.
CAUTION:
Woar a taco shiold lnd glov.s whon hlndling !
doploy.d airbag.
Waeh your hands and rin3a tham wall with
wslor aftor handling r deploycd !irb!g.
23-300
Doploying the Airbag: Out-ot{!r.
NOTE: lf an intsct airbag assembly has been removed
from a scrapped car, or has been found dofective or
damagsd during transit, storage or service, it should bs
dsployed as follows:
@ Porition th6 lirbrg rr:.mbly t.ce up, out-
doo6 on flat ground !t lorrt thirty foot from rny ob3t..
clar or pcoplo.
1. Confirm that the special tool is functioning properly
by following the check procedure on this page or on
the tool box label.
2. Remove the short connector from the airbag con-
nector.
3. Folfow steps 5,6,7, and 8 of the in-car deployment
orocequre.
Dlmlged Airbsg Sp.ci8l Procoduro.
E!@ f rn lirbag crnnot be deploy.d, it rhould
not br trcltcd !s normll scrrp; ii 3hould still bc comid-
ercd a potantillly oxplolivr dcvicc thli cln c!u3a 3ari-
ou3 iniury.
1. lf instslled in a car, follow the removal procedure on
page 23-295.
2. In all cases, make sure a short connector is properly
installed on the airbag conn€ctor.
3. Package the airbag in sxacily the same packaging
that the now replacement part cama in.i[. Mark the outside 0f the box "DAMAGED AIRBAG
NOT OEPLOYED" so it does not get confused with
your parts stock.
5. Contact your Acura District Service Manager for
how and where to return it for disoosal.
Dcploymont Tool: Chcck Procedure.
1. Connect the yellow clips to both switch protector
handles on the tool; connect the tool to a battery.
2. Push th€ operation switch: green means the tool is
OK; red means the tool is faulty.
3. Disconnect the battery and the yellow clips.

Supplemental Restraint System {SRSI
Cable Reel Replacement (cont'd)
18. Installthe steering wheel nut.
TORXO BOLTS9.8 N.m (1.0 kgf.m,7.2lbtftlReplace.Us6 a TORX6 T30 bit
STEERING WHEEL NUT,19 N.m 15.0 kgt m, 36 lbt ft)Replace.
AIRBAG ASSEMBLY
19.
20.
Install the driver's airbag assembly.
Connect the cable reel 6-P connactor to the SRS
main harness, then install the knee bolster and
dashboard lower cover.
DASHBOARD LOWER OOVER
21.Remove and properly store the shon connector(s)
{RED}, then reconnect the airbag connector(s} (and
reinstall the glove box).
Reconnect the battery positive cable, then the nega-
tive cable.
After installing the cable reel, confirm proper sys-
l€m operalron:
Turn the ignition ON (ll); the instrument panel
SRS indicator light should go on for about six
ssconds and then go off.
Make sure both horn buttons work.
Make sure the headlight and wiper switches
work.
Go for a test drive and make sure the cruise con-
trol switches work.
Rotate the steering wheel counterclockwise to
make sure the yellow gear tooth lines up with
22.
23.
a
a
24. Enter the code number to restore radio operation
(see page 23-191).
23-304

Supplemental Restraint System (SRSI
Dash Sensor Replacement (cont'dl
CAUTION:
. Be 3ure to install the harness wires so that theY ars
not pinchcd or interfering with othor car parte.
o Carefully inspest the dash sensors lor signs of boing
dropped or improperly handled,3uch as dents,
cracks or dsformation.
. For the SRS to lunction propotly, ths right and lsft
sensors must be installsd on the propor sidos.
6. Install the sensor securely.
DASH SENSOR
MOUNTING BOLTS8 mm x 1.2522 N.m (2.2 kgf.m, 16lbfftlReplace.
7. Reinstall all other removed parts.
23-306
li
10.
Remove and properly store the short connector{sl,
then reconnect the airbag connector(s) (and rsin-
stallthe glove box).
Reconnect the battery positive cable, then the nega-
tive cable.
After installing the dash sensor, confirm proper sys-
tem operation: Turn the ignition ON (ll): the instru-
ment panel SRS indicator light should come on for
about six seconds and then go off.
Enter the code number to restore radio operation
(see page 23-191)-
11.

Supplemental Restraint System {SRSI
SRS Unit Replacement (cont'd)
CAUTION: B€ suro to install tho SRS wiring ro thlt it i3
not pinched or interfeling with other car plrts.
6. Install the new SRS unit,
SRS MAIN HARNESS
18.P CONN€CTOR
Ur. . TORX. T30 bit
Connect the SRS main harness 18-P connector to
the SRS unit; push it into position until it clicks.
Install the SRS unit covers (right and left).
NOTE: Make sure the covers snap tog€ther in the
middle.
LEFT SIDE COVER
SRS UNIT
TORX' BOLTS
9.8 N.m 11.0 ksl'm.7.2 tbf.ftlReplace.U.. . TORX' T30 bit
TOD(' BOLTS9.8 N.m (1.0 tc[.m,7.2 tbf.ftl
SRS UNIT
COVER
23-308
1'l.
12.
Remove and properly storo the short connector{s),
thgn roconnect the sirb8g connector(s) (and rein-
st8ll tho glove box).
Roconnoct the battery positivo cable, th€n the n€98-
tivo cabls.
After installing the SRS unit, confirm proper system
operation: Turn the ignition ON (ll): th€ instrumont
panel SRS indicator light should come on for about
six ssconds and then go off.
Ent6r tho code number to rostors radio operation
(see page 23-191).