1998 ACURA INTEGRA Service Repair Manual

Precautions/Procedures
Spring-loaded Lock ConneetorSpring-loaded Lock Gonnector
with Built-in Short Contact
The driver's and front passenger's airbag have a spring-
loaded lock connector with a built-in short contact.
When this connector is disconnected, the power termi-
nal and the ground terminal in the airbag connector are
automatically shorted.
Connestor halves dbconnoctgd:
GROU D IERMINAL
SHONT OONTACI
CABTI REEL @I{I{ECTOF
Conncctor hrlvag connected:
Some SRS system connectors have a spring-loaded lock.
Disconn€cting
To release the lock, pull the spring-loaded sleeve toward
the stop while holding the opposite half ot the connector.
Then puilthe connector halves apart.
NOTE: Be sure to pull
connector half.
on the sleeve and not on the
SPRII{G.LOADEDsL"EEvE
Do not pullon thishalt of the connector-Conneqting
1. Hold the pawl-side connector half, and press on the
back of the sleeve-side connector half in the direction
shown. As the two connector halves are pressed
together, the sleeve is pushed back by the pawl.
NOTE: Do not touch the sleeve,
When the connector halves are completely connected,
the pawl is released, and the spring-loaded sleeve
locks the connector.SPRIM;-LOADEDSLECVE
acr
GAOUND TERi'INAL
@NTACT
CABII REELooNtrEcron
23-284
CONYACT

Disconnecting the Airbag Connector(s)
!@ To prevent accidental airbag dsploymcnt, turn ths ignition switch OFF, disconnect the negrtive battory
able, and wait three minut€s before disconnesting any SRS Glnnoqto.s.
. Before disconnecting the SRS main harness {A)from the SRS unit, disconnect both airbags (C, D).
. Before disconnecting the cable reel 2P con nector ( B). disconnect the driver's airbag 2P connector (C).
)
1. Disconnect the negative baftery cable. and wait at
least three minutes.
2. Disconnect the airbag connector(s).
Driver's Side:
. Remove the access panel from the steering wheel,
then disconnect the driver's airbag 2P connector and
cable reel 2P connector.
CABLE REEL2?CONNECTOR
Front Ps$sngar'3 Sid.:
. Remove the glove box. then disconnect the front pas-
senger's airbag 2P connector and SRS main harness
2P connector,
\,./AccEssPANEL
23-2A5

Precautions/Procedures
Steering-related Precautions
Steering Wheel and Gable Reel Alignment
NOTE: To avoid misalignment of the steering wheel or
airbag on reassembly. make sure the wheels are turned
straight ahead before removing the steering wheel.
Rotate the cable reel clockwise unit it stops.
Then rotate it counterclockwise (approximately two and a
half turns) until the arrow mark on the cable reel label
points straight up.
ARROW MARK
23-286
Steering Column Removal
CAUTION:
. Before romoving the steoring column, lirst di3con-
nect ths connector bctwoen tho csble rsal and the
SBS main harneEs.
. lf the steeting column is going to be rsmoved with-
out dismounting the steering wheel, lock the steer-
ing by iurning the ignition k6y to o'LOCK position' or
remove tho key lrom thc ignition ro that the steering
wheel will not turn.
NOTE:
When the airbag and cable reel are disconnected, and
the battery is reconnected and the ignition switch is
turned ON (ll), the SRS unit will store this as an open
in the driver's airbag inflator, and the SRS indicator
light will come on. In such a case, make sure to con-
firm the DTC, then clear the SRS unit memory.
For disconnecting the spring-loaded lock type connec-
tor, refer to page 23-284,
SRS MAIN HARNESS2P CONNECTOR
Do not replace the original steering wheel with any other
design since it will make it impossible to properly install
the airbag {only use genuine Honda replacement parts).
After reassembly. confirm that the wheels are still turned
straight ahead and that the steering wheel spoke angle is
correct, lf minor spoke angle adjustment is necessary, do
so only by adjusting the tie-rods, not by removing and
repositioning the steering wheel.
L

)
Troubleshooting
Self-diagnostic Procedures
The self-diagnostic function of the SRS system allows it to locate the causes of system problems and to store this informa-
tion in memorv. For easier troubleshooting, this data can be retrieved via 8 dats link circuit.
o When you turn the ignition switch ON (ll), the SRS indicator will come on. lf it goes off after six seconds, the system is
normat.
. lf there is 8n abnormality, the system locstes and defines the problem, stores this information in memory, and turns
th€ SRS indicator light on. The data will remain In the memory even when the ignition switch is turned off or if the bat-
terv is disconnected.
. When you connect the SCS service connector to the service check connector (2P), and turn the ignition switch ON {ll),
the sRs indicator light will indicate the diagnostic trouble code (DTCI by th€ number of blinks.
. After reading and recording the DTC, proceed with the troubleshooting for this code
Pr6crution!
. Use only a digital multimeter to check the system, lf it's not a Honda multimeter, make sure its output is 10 mA (0.01 A)
or less when switched to the smallest value in the ohmmeter range. A tester with a higher output could damsge the
airbag circuit or cause sccidental airbag deployment and possible injury.
. Whenever the ignition switch is ON (ll), or has been turned OFF for less than three
SRS unit; the airbags could accidentally deploy and cause damage or injuries'
. Before you remove the SRS main harness, disconnect the driver's airbag connector
conneclor.
and the front passenger's airbag
. Make sure the battery is sufficiently charged (s6e psge 23-67). lf the battsry is dead or low, msasuring values won't be
correct,
a Do not touch a tester probe to the terminals in the SRS unit or harness connectors, and do not connect the terminals
with a jumper wire. Use only the backprobe set and the SCS service connector.
For backprobing spring-loaded lock type connectors, refer to psge 23-283.
Reading the DTC
When the SRS indicator light is on, read the DTC using one ot th"sc rn"ihod<
A. Connect the Honda PGM Toster io the 16P D![! Linl Con.lac{or {DLC), tnd toalor nl -r t!'iF t tr -
indicat$ no DTC, or it indicates DTC $1 or DTC $2. doublechcd( b'Y iumdng $. !..vic. chd cdrE r€ --t
ing the SRS indicator light (see next p89€).
{cont'd)
minutes, be careful not to bump the
DATA LINK CONNECTOR (16P}
23-247
HONDA PGM TESTER

v
-t f--.l r --1 f-M.in cod. {11 S!b{od. (2}
oTcr2
-l F --{ FMain cod. (l) Sub-cod.11).--.Y-oTc r-rThnd'm6r.@6m
2
ON
light sl.ys on h ct36 or
Troubleshooting
Reading the DTC (cont'd)
B. The SRS indicator light can also indicate the OTC by the number of blinks when the SCS service connector ts connect-ed to the service check connector (2P).
1. Turn the ignition switch OFF, and wait for ten seconds. Then connect the SCS service connector to the service checkconnector (2P). lf you do not wait ten seconds, the SRS unit will not be completelv reset and will not outout DTCS.SRS INDICATOR LIGHT
scs SERV|CECONI{ECTOR- (x)l01(x)
SERVICE CHECKCONNECTOR (2PI
2. Turn the ignition swilch ON (ll). The SRS indicator light comes on for about six seconds and then goes off. Then it will
indicate the DTC:- The DTC consists of a main code and a sub-code.- Including the most recent problem, up to three different malfunctions can be indicated.- ln case of a continuous failure, the DTC will be indicated repeatedly (see example 1 below).- In case of an intermiftent failure, the SRS indicator light will indicate the DTC one time. then it will stay on (see exarn-ple 2 beiow).- lf both a continuous and an intermittent failure occur, both DTCS will be indicated as continuous failures.- In case the system is normal (no DTC), the SRS indicator light will stay on {see example 3).
3. Read the DTC.
4. Turn the ignition switch OFF, and wait for ten seconds. Then disconnect the SCS service connector from the servicecheck connector (2P),
Examples ol DTC Indications:
L Continuous failure, SRS Indicator Light is:0.3 s 0.3s 0.3 s-]-]-l-t-
07?M
(S./'
\
-l Mlin cod. r
orc 2-1Mo3t r.cant probt.m
Intermittent failure, SRS Indicator Light is:
Normsl (no failure), SRS Indicator Light is:
oTc 5,r

)
Erasing the DTC Memory
To erase the DTC(S) from the SRS unit, use a Honda
PGM tester (see the Honda PGM Tester SRS vehicle
System Supplement) or the following procedure.
1. Make sure the ignition switch is OFF.
2. Connect the SCS service connector to the MES con-
nector (2P). Do not use a jumper wlre.
MEMORY EMSESIGNAL {MESI CONNESTOR I2P)
[GRN, GBNI or IWHT, BLKI
Turn the ignition switch ON (ll).
The SBS indicator light comes on for about six sec-
onds and goes off. Remove the SCS service connec-
tor from the MES connector (2P) within four seconds
after the SRS indicator light went off.
The SRS indicator light comes on again. Reconnect
the scs service connector to the MES connector
(2P) within the four seconds after the SRS indicator
light comes on.
The SRS indicator light goes off. Remove the SCS
service connector from the MES connector (2P)
within four seconds.
The SRS indicator light indicates that the memory is
erased by blinking two times.
Turn the ignition switch OFF. and wait for ten sec-
onos.
Troubleshootin g Intermittent
Failures
lf the.e was a malfunction, but it doesn't recur, it will be
stored in the memory as an intermittent failure, and the
SRS indicator light comes on,
Atter chocking ths DTC, troubleshoot as follows:
1. Read the DTC (see "Reading the DTC").
2. Erase the DTC memory (see "Erasing the DTC
Memory").
3. With the shift l€ver in neutral, turn the ignition switch
ON (ll), and let the engine idle.
4. The SRS indicator light comes on for about six sec-
onds and then goes off.
I o"* 1--
ONllI
Shake the wire harness and the connector, take a test
drive (quick acceleration, quick braking, cornering),
and turn the steering wheel fully left and righi, and
hold I there for fve to ten s€conds lo 6nd tt|e caus€
of the intermnem farlure
It lhe problem .!curs, lha SRS nd'calor r'ghl will
$aY on.
,l soc or less
Problem recurs, Iight stays on
lf vou can't duplicate the intermittent failure, the sys-
tem is OK at this time.SRS indic.lollight
MESconnaclottarrninlll
CONNECTED
DISCONNECTED
23-289

Troubleshooting
Diagnostic TroubleCode(DTC}Chart
SBS indicato. lightDTCPossible caug€Co.rective actionSee page
doesn't come onnone
{doesn't
come on)
Faulty SRS indicator light circuitTroubleshooting23-293
comes on
none*3
{doesn'tgo off)
Faulty SRS indicator light circuit, internal
failure of SRS unit, faulty SRS power supply(VB line)
Troubleshooting
'l -1Open in the driver's airbag inflator
Troubleshooting
23-301
Increased resistance in the driver's airbag
inflator23-301
1-3Short to another wire in the driver's airbao
inflato. or decreased .esistance23-303
1-4Shon to power in the driver's airbag inflator23-305
't-5Short to ground in the driver's airbag inflator23-301
2-1Open in the passenger's airbag inflator
Troubleshooting
23-309
Increased resistance in the passenger's airbag
inflator23-309
Short to another wire in the passenger's
airbag inflator or decreased resistance23-311
Short to power in the passenger's airbag
inflator23-313
z-JShort to ground in the passenger's airbag
inflator
23-290
t-
I

sRs indicaror light I DTcPossible causeCorrective actionSee page
comes on
5,1
5-2
lnternal failure of the SRS unitSRS unit replace-
ment23-326
5-4
6-1
lnternal failure of the SRS 0nitSRS unit replace-
ment23-326
6-2
6-4
lnternal Iailure of the SRS unitSRS unir replac€-
menlll Jzo't -2
7-3
23326
8-l
lnternal failure of the SRS unitSRS unit replace-
menra-2
lnternal failure ot the SRS unitSRS unit replace-
ment23-326
9-2*2*x
10-1
lnternal failure of the SRS unitSRS unit replace-
ment23-326
SRS airbags deployed (SRS unit must be
replaced)
SRS unit replace-
menl
*1: ln 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 intermittent failures (see page 23-289)
*2: ln case of an intermittent failure DTC 9-2, it means there was an internal failure ot the power supply (VB line). Do the
troubleshooting for intermittent failures (see page 23-289).*3: DTC cannot be read with a Honda PGM Tester; check by iumping the SCS service connector'
23-291