indicator HONDA INTEGRA 1998 4.G Owners Manual

!
Gomponent/Wiring Locations Index
SRS INDICATOR LIGHT(ln the gauge assembly)Troubleshooting, page 23-287Gauge assembly, page 23-126
To HORN SWITCH
CABLE REELReplacement,page 23-322
DRIVER'S AIRBAGReplacement. page 23-317Disposal, page 23-320To DRIVER'S AIRBAG
DASHBOARD WIRE HARNESSFRONT PASSENGER'SAIRBAGBeplacement, page 23-317Disposal, page 23-320
to SRS INDICATOR LIGHT in GAUGE ASSEMBLY5P CONNECTOR
SRS MAIN HARNESSTo MAINWIRE HARNESS3P CONNECTOR
SRS MAINHARNESSto UNDER-DASHFUSE/RELAYBOX2P CONNECTOR
HARNESSto FRONT PASSENGERS AIRBAG2P CONNECTOR
SRS MAIN
SERVICE CHECXCONNECTOR {2PIIBRNAAIHT, BLK]to CABLE REEL2P CONNECTOR
MAIN WIRE HARNESSto DASHBOARD WIREHARNESS16P CONNECTOR
ERASE SIGNAL (MES}SRS UNITGBOUNOSRS MAIN HARNESSSRS UNIT(lncluding safing sensorano rmpact sensor)R6placement, page 23-326
2P CONNECTORSRS MAIN HARNESSto SRS UNIT18P CONNECTOR
S\--0
[GRN, GRNI or IWHT, BLKI
23-27A

Description
I
J)
)
'\' '\, ili \.-.-1 i^\\,,; i \
The SRS is a safetv device which, when used in coniunction with the seat belt, is designed to help protect the driver and
front passenger in a frontal impact exceeding a cenain set limit. The system consists ot the SRS unit (including safing sen-
sor and imDact sensor), the cable reel, the driver's airbag, and front passenger's airbag
Operation t'Its
The main circuit in the SRS unit senses and judges the force ot impact and, il necessary, ignites the inflator charges. If bat-
tery voltage is too low or power is disconnected due to the impact, the back-up power circuii will keep voltage at a con-
stant level.
For the SRS to operate:
(1) The impact sensor and safing sensor must activate and send electric signals to lhe mictop.Goi
{2) The microprocessor must compute the signals and send signals to the airbag inflators'
(3) The inflators must ignite and deploy the airbags sE Lr.r
UNDER DASHFUSE/RELAYBOX
Dnftr sAtacranroq
IIMPACT I ] )
F80t{TPASSEI{GEffSAIRSAGINFLAIOR
Drc MES SCS rDC
Self-diagnosis System
A self-diagnosis circuit is built into the sRs unit; when the ignition switch is turned oN (ll), the sRS indicator light comes
on and goes off after about six seconds if the system is operating normally'
lf the light does not come on, or does not go off after six seconds, or if it comes on while driving. it indicates an abnormal-
ity in the system. The system must be inspected and repaired as soon as possible'
For better servicesbility. the memory will store the cause of the malfunction, and the data link circuit passes on the infor-
mation from the memory to the data link connector (DLC). This information can be read with the Honda PGM Tester con-
nected to the DLc (16P).
23-279
J

Circuit Diagram
FRONTPASSENGEF'SAJRBAGINFLATOR
f\4r
tlGRN GRN(YEL) (BLi.,'YEL)
I
G701
IGNITIONswtTcH
SRS INOICATOF CIBCUIT(ln the gauge assembly)
8LU
I
I
siEi'
IGRN
GRN(8RN)
I?
RNAVHT BRII/WHTlltl\---7 \*7
ECM SERVICECHECKcoirNEcTon
WHT/BLK +WHT
t"'
DATA LINKCONNECTOF(DLC)(r6P)
UNDEF-DASHFUSURELAY80x
ELKRED
J
PGM-FImain r€lay
MEIiIORY ERASEr2pt SIGNAL (MESIcoNNECToR (2P)
SRS UNIT TERMJNALS
BLX
G201G401
-NOER.NOOD FUSE/RELAY BOX
SRS INDICATORLIGHT 0.4W)
10 14 1 13 6 7(VA) 3(VB)SRS UNIT16 17 15 9188
DRIVER'SAJFBAGINFLATOR
1367I
10,/1,/1314151718
lerminal sde o{ male tefinnals
23-280
\'

Precautions/Procedu res
SRS Unit Precautions
Take extra caro when painting or doing body work in
the area below the dashboard. Avoid direct exposure
of the SRS unit or wiring to heat guns, welding, or
spraying equipment.
Disconnect the airbsg connector(s) before discon-
necting SRS harness connectors (see page 23-2851.
After any degree of frontal body damage, or after a
collision without airbag deployment, inspect the SRS
unit for physical damage. lf it is dented, cracked, or
deformed, reDlace it.
Be sure the SRS unit is installed securelv.
Do not disassemble the SRS unit.
Store the SRS unit in a cool (lass than about
104'F/40"C) and dry (less than 80% humidity, no mois-
ture) place, Do not spill water or oil on the SRS unit,
and keeD it awav trom dust.
During installation or r6placement, be careful not to
bump {impact wrench, hammer, etc.) the area around
the SRS unit. The airbags could accidentally deploy
and cause damsge or injuries,
v
Inspection After Deployment
After a collision in which the airbags w6re deployed,
replace the SRS unit, and inspect the following:
1, Inspect all the SRS wire harnesses. Replace, don't
repair, any damaged harnesses
2. Inspect the cable reel for heat damage. lf there is any
damage. replace the cable reel.
3. After the vehicle is completely repairod, turn the
ignition switch ON {ll). lf the SRS indicator light
comes on for about six seconds and then goes off,
the SRS system is OK. lf the indicator light does not
function properly. go to SRS Troubleshooting.
23-282

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

Troubleshooting
SRS Indicator Light Wire Connections
SRS Indicator Light Power Circuit
To UNDER-DASHFUSE/RELAY BOX2OP CONNECTOB
SRS Indicator Light Control Circuit
To SBS UNIT
iI
SRS MAIN HABNESS
C55'1, C557 : WIRE SIDE OF FEMALE TERMINALS
DASHBOARD WIRE HARNESS
MAIN WIRE HARNESS
C557 -+ To GAUGE ASSEMBLY
CiP7, C449 : TERMINAL SIDE OF MALE TERMINALSC553, CEo1. C802, C804: WIBE SIDE OF FEMALE TEFMINALS
DASHBOAND WIREHARNESS
To UNOEF-DASHFUSE/RELAY BOX2P CONNECTOR
C427 : MAIN WIRE HARNESS 3P CONNECTORC/r49 : MAIN WIBE HARNESS 16P CONNECTORC551 : DASHSOARD WIRE HARNESS 2Op CONNECTORC553 : DASHBOARD WIFE HARNESS t6P CONNECTORCssT : OASHBOARD WlnE HABNESS SP CONNECTOB
To GAUGE ASSEMBLY
C801 : SRS MAIN HARNESS 2P CONNECTOBC802 : SRS MAIN HARNESS 3P CONNECTORC804: SRS MAIN HAFNESS 18P CONNECTOR
BLU