service HONDA CR-V 1998 RD1-RD3 / 1.G Workshop Manual
[x] Cancel search | Manufacturer: HONDA, Model Year: 1998, Model line: CR-V, Model: HONDA CR-V 1998 RD1-RD3 / 1.GPages: 1395, PDF Size: 35.62 MB
Page 1313 of 1395
Gomponent/Wiring Locations Index -'98 - 00 models
SRS INDICAIOR LIcHT (ln the gauge assembty)Troubleshooting, page 24 27Gauge assembly. section 23
DASHBOARD WIRE HARNESSto SRS INDICATOR LIGHf inGAUGE ASSEMBLY5P CONNECTOR
FRONT PASSENGER'S AIRBAGReplacement, page 24-89Disposal, page 24 97
CABLE REELReplacement,page 24-91
To HORN SWITCH
To CRUISE CONTROLSET/RESUME SWTCH
To DRIVER'S AIRBAG
ro CABLE REEL2P CONNECTOR
MAIN VYIRE HARNESSto DASHBOARD WIRE HARNESS
SRS MAIN HARNESS
ORIVER'S AIRBAGReplacement,page 24-87Disposal, page 24-97
SRS UNIT
SRS MAIN HARNESSto FROI{T PASSENGER,S AIRBAG2P CONiIECTOR
RIGHT SIDE WIRE HARNESS toSEAI BELTTENSIONER2P CONNECTOR24P CONNECTOR
SRS MAIN
SRS MAIN HARNESS toLEFT SIDE WIRE HARNESS2P CONNECTOR
SRS MAIN HARNESSto MAIN WIRE HARNESS3P CONNECTOB
(lncluding safing sensorand impact sensor)Replacement, page 24-95
SRS MAIN HARNESS toRIGHT SIDE WIRE HARNESS2P CONNECTOR
SERVICE CHECKCONNECTOR I2PIIBLK BRNI
to UNDER-DASHFUSE/RELAY BOX2P CONNECTORSEAT BELT TENSIONERReplacement, page 24 3Disposal, page 24-97
ORIVER'S SEAT BELTMEMORY ERASE SIGNAL(MES) CONNECTOR I2PIIGRN, GRNI or IWHT, BLKIReplacement, page 24-3Disposal, page 24-97
LEFT SIDE WIRE HARNESS toSEAT BELTTENSIONER2P CONNECTOR
24-16
.4
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Page 1314 of 1395
Description
J)
The SRS is a safety device which, when used in conjunction with the seat belt, is designed to help protect the driver and
front passenger in a frontal impact exceeding a certain set limit. The system consists of the SRS unit (including safing sen-
sor and impact sensor), the cable reel, the driver's airbag and front passenger's airbag.
Seat Bolt Tensioner {'98 - 00 models}
The seat belt tensioner is linked with the SRS airbags to further increase the effectiveness of the seat belt. In a front-end
collision, the tensioner instantly retracts the belt firmly to secure the occupants in their seats
FRONT PASSENGER'SAIREAGDRIVER'S AIRBAG
FRONT PASSENGER'SSEAT BELT TENSIONER{'98 - 00 modelsl
)
SRS UNITDRIVER'S SEAT BELTTENSIONER l'98 - 0O modeb)
Operation
The main circuit in the SRS unit senses and judges the force of impact and, if necessary, ignites the intlator charges. lf bat
tery voltage is too low or power is disconnected due to the impact, the voltage regulator and the back-up power circuit
respectively will keep voltage at a constant level.
For the SRS to operate:
(1) The impact sensor must activate, and send electric signals to the microprocessor.
(2) The microprocessor must compute the signals, and send them to the airbag inflators (and seat belt tensioners).
(3) The inflators must ignite and deploy the airbags (and activate the tensioners).
Selt-diagnosis System
A self-diagnosis circuit is built into the SRS uniU when the ignition switch is turned ON (ll), the SRS indicator Iight comes
on and goes off after about six seconds if the system is operating normally.
lf the light does not come on, does not go off after six seconds, or it comes on while driving, it indicates an abnormality in
the system. The system must be inspected and repaired as soon as possible.
For battery serviceability, 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).
198
---__-l
TENSTO1En II
_-___J- 00 N4ode s)
24-17
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Page 1315 of 1395
Circuit Diagram
UNDER.DASHFUSE/RELAYBOX
NOTE: The SRS main harness uses all GRY('97 model) or GRN ('98 - 00 models) wires.
WHT/BLK -'- WHT
DRIVEB'SAIRBAGNFLATOR
A
#+
tt tll./ d I
GRY GRY(GRN) (GRN)
FRONTPASSENGER'SALRBAGINFLAlOR
tlGRY GFY(GFN) (GRN)
DRIVER'SSEAT EELTTENSIONER
FRONTPASSENGERSSEAT BELTTENSIONEF
GRN(BLU/PNK)
BLK
G401
24-18
PCM/ECM SERVICE MEMORY ERASECHECK S GNAL (MES)CONNECTOB CONNECTOR(2P)
DATA LINXCONNECTOR(Drc) (r6P)
Models)('98 - 00
IGNITION SWITCHUNDEF,HOOD FUSE/RELAY BOX
YEUGRN
+
PGM FImam relay
SFS INDICATOR CIRCUIT(ln lhe gauge assembly)
Shill loc* so enoid
BLU
GR\
GNY GRY
H
GFY GRYlcFNt (GlN)
??
I r-?LT BLU BRN BRN
tttr?F?F
VVV
SRS NDICATORL GHT {r.4W)
5 12 4 11 | 16 17 15 I 18 I
10 14 113
U
S8S UN T TERMINALS
3567I
101114151718
Terminal side of male terminals
-4
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Page 1316 of 1395
Precautions/Procedures
)General Precautions
Carefully inspect any SRS part before you install it.
Do not install any part that shows signs of being drop-
ped or improperly handled, such as dents, cracks or
deformation:
- Airbags- Cable reel- SRS unit- Seat belt tensioners
N
)-
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 damage the airbag circuit or cause acci-
dental deployment and possible injury.
Do not install used SRS Dans from another vehicle,
When making SRS repairs, use only new pans.
Except when performing electrical inspections,
always disconnect both the negative cable and posi-
tive cable from the batterv. and wait at least three
minutes before beginning work.
Replacement of the combination light and wiper/
washer switches and cruise control switch can be
done without removing the steering wheel:
- Combination light and wiper/washer switch replace-
ment {see section 231.- Cruise control sevresume switch replacement (see
section 41.
Whenever the ignition switch is ON {ll}, or has been
turned OFF for less than three minutes, be careful not
to bump the SRS unit; the airbags could accidentally
deploy and cause damage or injuries.
Whenever the airbag has been activated, replace the
SRS unit.
The original radio has a coded theft protection circuit.
Be sure to get the customer's code number before dis-
connecting the battery cables.
)
Airbag/Seat Belt Tensioner
Handling and Storage
Do not try to disassemble an airbag or a seat belt ten-
sioner. They have no serviceable parts. Once an airbag
or a seat belt tensioner have been deployed. they cannot
be repaired or reused.
For temporary storage of an airbag or a seat belt ten-
sioner during service, please observe the following pre-
cautons:
. Store the removed airbag with the pad surface up.
The driver's/front passenger's airbag connectors and
seat belt tensioner connectors have a built-in short
contact (see page 24-211.
@ r th€ airb.g is impropcrty stor€d face down,
accidental deployment could propel the unit with enough
forc€ to caus6 serious iniury,
Store the removed on a secure flat surface awav from
any high heat source (exceeding 212"F/100'C) and
free of any oil, grease. detergent or water.
lmproper handling or storage can internally damage
the airbag and seat belt tensioner. making them inop-
erative.
lf you suspect the airbag and seat belt tensioner have
been damaged, install new units and refer to the
Deploymenvoisposal Procedures for disposing of the
damaoed units.
AIRBAG CONNECTORS
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Page 1323 of 1395
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 memory, For easier troubleshooting, this data can be retrieved via a data link circuit.
. When you turn the ignition switch ON (ll). the SRS indicator will come on. lf it goes off after six seconds, the system is
normal.
. lf there is 8n abnormality, the system locates and defines the problem. stores this information in memory, and turns
the 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 (DTC) by the number of blinks.
. After reading and recording the DTC, proceed with the troubleshooting forthis code.
Precsutions
. 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 damage the
airbag circuit or cause accidental airbag deployment and possible injury.
. Whenever the ignition switch isON (ll). or has been turned OFF for less than three minutes, be careful nottobumpthe
SRS unit; the airbags could accidentally deploy and cause damage or injuries.
. Before you remove the SRS main harness, disconnect the airbag and tensioner connectors (see page 24-23).
. Make sure the battery is sufficiently charged (see section 23). lf the battery is dead or low, measuring values won't be
correct.
. 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 con nectors, .efet to page 24-22.
Reading the DTC
When the SRS indicator light is on, read the DTC using one of these methods;
A. Connect the Honda PGM Tester to the 16P Data Link Connector {DLC), and follow the tester's prompts. lf the tester
indicates no DTC, DTC 9-1 and DTC 9-2, double-check by jumping the service check connector (2P) and watching the
SRS indicator light (see next page).
HONDA PGM TESTER
DATA LINK CONNECIOR {DLCI {16P)
24-26
,1
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Page 1324 of 1395
)
B.The SRS indicator light can also indicate the DTC by the number oJ blinks when the SCS service connector is connecr-ed to the service check connector (2P).
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 completely reset and will not output DTCS.
SEBVICE CHECK CONNECTOR I2PIIALK, BRNI
1.
)
SEBVICE CONNECTOR07PAZ - 0010100
2. Turn the ignition switch ON (ll). The SRS indicator light comes on for about six seconds and then goes off. Then it willindicate 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.- In case of a continuous failure. the DTC will be indicated repeatedly (see example 1 below).- In case of an intermittent failure, the SRS indicator light will indicate the DTC one time, then it will stay on (see exarn-pte 2 below).- 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 Jrom the servicecheck connector (2P).
Examples of DTC Indications:
1. Continuous failure, SRS Indicator Light is:0.3 s
, s --l f.-, s --.l0.3 s 0.3 5 0.3 s
li-rMain code (1) Sub-code (2)
DTC r.2
--l fl-!
--1 M.h@de r--r f--l F --l FM.a^ code (rt Sub-cod6ltl.............v_otc I rThird.mGr .oconl
Light srayson in cas€ ol
2.
DTC21Mo6t r.@nl p.oblem
Intermittent failure, SRS Indicator Light is:
)
3. Normal (no failure), SRS Indicator Light is:
DTC 5,1
24-27
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Page 1325 of 1395
Troubleshooting
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 wire.
MEMORY ERASESIGNAL (MES} CONNECTOR I2PIIGRY, GRYI or IGRN, GRNI
SCS SERVICE CONNECTOR07PAZ - 0010100
3. Turn the ignition switch ON (ll),
4. The SRS indicator light comes on for about six sec-
onds and then goes off. Remove the SCS servjce con
nector from the MES connector {2P) within four sec-
onds after the SRS indicator light went otf.
5. The SRS indicator light comes on again. Reconnect
the SCS service connector to the MES connector(2P) within four seconds after the SRS indicator lioht
comes on,
6. The SRS indicator light goes otf. Remove the SCS
service connector from the MES connector (2P)
within four seconds.
7. The SRS indicator light indicates that the memory is
erased by blinking two times.
L Turn the ignition switch OFF, and wait for ten sec
onos.
SRS indicatorliqtfi
MESconnac'lolterminals
OFF
CONNECTED
OISCONNECTEO
24-28
,l sec or less
3.
Troubleshooting Intermittent
Failures
lf there 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.
After checking the DTC, troubleshoot as follows:
1. Read the DTC (see "Reading the DTC").
4.
Erase the DTC memory (see "Erasing the DTC
Memory").
With the shift lever in neutral, turn the ignition switch
ON (ll), and let the engine idle.
The SRS indicator ljght comes on for about six sec-
onds and then goes off.
t*F
ON
lt--- _l
Shake the wire harness and the connector, take a test
drive (quick acceleration, quick braking, cornering),
and turn the steering wheel fully left and right, and
hold it there for five to ten seconds to find the cause
of the intermittent failure.
lf the problem recurs, the SRS indicator light will
stay on.
-+t 6!.c l.-
Problem recurs, light stays on.
6. lf you can't duplicate the intermiftent tailure, the sys-
tem is OK at this time.
:-
-4
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Page 1327 of 1395
Troubleshooting
Diagnostic Trouble Code (DTC) Chart -'97 model (cont'dl
*1: In case of an intermittent failure DTC 9-1, it means there was an internal failure of the SRS unit or a faultv SRS indica-tor light circuit. Do the troubleshooting for intermittent failures {see page 24-28),*2: DTC cannot be read with a Honda PGM Tester; check by jumping the SCS service connector.
NOTE: Before troubleshooting DTCS 5-1 through 8-5, check battery/system voltage. lf voltage is low. repair the chargingsystem before troubleshooting the SRS system.
l*
SRS indicator lightDTCPossible causeCorrestive actionSee page
doesn't go off
Internal failure of the SRS unitSRS unit replace-
ment24-965-3
5-4
5-5
o-l
Internal failure of the SRS unitSRS unit replace-
ment24-966-2
6-4
lnternal failure of the SRS unitSRS unit replace-
ment24-967-2
7-3
8-1
Internal failure of the SBS unitSRS unit replace-
menr24-96a-2
8-5
8-6Internal failure of the SRS unit or two failures
at a timeTroubleshooting24-82
Internal failure of the SRS unitSRS unit replace-
menr24-96
9-2Faulty SRS power supply (VB line)Troubleshooting24-84
'10- 1SRS airbags deployed (SRS unit must be
replaced)
SRS unit replace-
ment24-96
24-30
--
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Page 1394 of 1395
Airbag/Seat Belt Tensioner
)Disposal
)
Before scrapping any airbags {and seat belt tansioners)
(including those in a whole vehicle to be scrappedl. the
airbags (and seat belt tensioners) must be deployed. lf
the vehicle is still within the warrantv oeriod the Honda
District Service Manager must give approval and/or spe-
cial instructions, before you deploy the airbags (and seat
belt tensioners). Only after the airbags {and seat belt ten-
sioners) have been deployed (as the result of vehicle col-
lision, for example), can they be scrapped.
lf the airbags (and seat belt tensioners) appear intact
(not deployed), treat them with extreme caution.
Follow this procedure:
Doploying tho Airbags (and Soat B6li Ten3ione6):
ln-vehicle
lf an SRS vehicle is to be entirely scrapped, its airbags(and seat belt tensioners) should be deployed while still
in the vehicle. The airbags (and seat belt tensioners)
should not be considered as salvageable parts and
should never be installed in another vehicle.
@ confirm that each airbag {and seat belt
tonsiongr) i3 ggcurely mountod; othgrwise, severe per-
sonal iniury could result from d6ploym6nt,
1. Disconnect the battery negative cable, then discon-
nect the oositive cable.
Confirm that the special tool is functioning properly
by following the check procedure on the tool label
or on page 24-98.
Remove the access panel, then disconnect the 2P
connector between the driver's airbag and the cable
reel (see page 24-23).
Remove the glove box, then disconnect the 2P con-
nector between the front passenger's airbag and
SRS main harness (see page 24-23).
Remove the center pillar lower trim panel, then dis-
connect the 2P connector between the seat belt ten-
sioner and side wire harness ('98 - 00 models) (see
page 24-231.
6. Cut off the airbag (and seat belt tensioner) connectors.
Strip the ends of the airbag (and seat belt tensioner)
wires. and connect the deployment tool alligator clips
to the airbag (and seat belt tensioner). Place the
deployment tool at least thirty feet (10 meters) away
from the airbao (and seat belt tensioner),
DRIVER'S FRONTPASSENGER'SAIBBAG AIRBAG
AI.IIGATORcuPslY6llowl
At lcastthirty feot
110 motersl
(cont'd)
24-97
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Page 1395 of 1395
Airbag/Seat Belt Tensioner
1.
Disposal (cont'dl
Connect a 12 volt battery to the tool'
. It the green light on the tool comes on, the air-
bag igniter circuit is defective and cannot deploy
the airbag. Go to Damaged Airbag Special
Procedure.
.lftheredlightonthetool comes on, the airbag is
ready to be deployed.
Push the tool's deployment switch. The airbag
should deploy (deployment is both highly audible
and visible; a loud noise and rapid inflation of the
bag, followed by slow deflation).
. lf the airbags deploy and the green light on the
tool comes on, continue with this procedure.
. lf an airbag doesn't deploy, yet the green light
comes ON, its igniter is defective. Go to Dam-
aged Airbag Special Procedure.
. During deployment, the airbag can become hot
enough to burn you, Wait thirty minutes after
deployment before touching the airbag.
Dispose of the complete airbag. No part of it can be
reused. Place it in a sturdy plastic bag, and seal it
securety.
CAUTION:
. Wear a faco shield and gloves when handling a
deployed airbag.
. Wash your hands and rinse them well with
water after handling a deployed airbag.
24-98
Deploying tho Airbag: Out-ot.vohicle
lf an intact airbag has been removed from a scrapped
vehicle, or has been found defective or damagsd during
transit. storage or seryice, it should be deployed as fol-
lows:
'L Confirm that the special tool is functioning properly
by following the check procedure on this page or on
the tool label.
2. Position the airbag face up, outdoors on flat ground
at least thirty feet (10 m) from any obstacles or peo-
Dte,
3. Follow steps 6, 7, 8. and 9 of the in-vehicle deploy-
ment proceoure.
Dlmaged Airbsg {or Seat Beh Ten3ion6r} Sp6cial
Procgdure
!@ r an airbag {or seat Beh rensioner} cannol
be doployod, it should not be treated as normal scrap; it
should still be considered a pot€ntially explosive device
lhat can cause serious iniury.
1. lf installed in a vehicle. follow the removal proce-
dure on page 24-3 and 24-87 through 90.
2. In all cases, make a short circuit by twisting together
the two airbag inflator wires.
3. Package the airbag in exactly the same packaging
that the new reDlacement Dart came in.
4. Mark the outside of the box "DAMAGED AIRBAG
{or TENSIONER) NOT DEPLOYED" so it does not
get confused with your parts stock.5. Contact your Honda District Service Manager forhow and where to return it for disposal.
Deployment Tool: Check Procedure
Connect the yellow clips to both switch protector
handles on the tool; connect the tool to a battery.
Push the operation switch: green means the tool is
OK: red means the tool is faultv.
Disconnect the baftery and the yellow clips.
I
t
l.
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