passenger HONDA CR-V 1997 RD1-RD3 / 1.G Repair Manual
[x] Cancel search | Manufacturer: HONDA, Model Year: 1997, Model line: CR-V, Model: HONDA CR-V 1997 RD1-RD3 / 1.GPages: 1395, PDF Size: 35.62 MB
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 1317 of 1395
Precautions/Procedures
SRS Unit Precautions
Take extra care 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 driver's/front passenger's airbag con-
nectors and seat belt tensioner connectors before
working below the dashboard near the SRS unit.
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
detormed, reolace it,
Be sure the SRS unit is installed securelv.
Do not disassemble the SRS unit.
Store the SRS unit in a cool {less than about
104"F/40"C) and dry {less than 80o/o humidity. no
moisture) place. Do not spill water or oil on the SRS
unit, and keep it awav from dust.
During installation or replacement, be careful not to
bump (impact wrench, hammer, etc.) the area a[ound
the SRS unit, The airbags could accidentally deploy
and cause damage or injury.
24-20
,..4
Inspection After Deployment
After a collision in which the airbags were 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 repaired, turn the
ignition switch on. 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.
rD
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Page 1318 of 1395
JWiring Precautions
. Never attempt to modify, splice or repair SRS wiring.
NOTE: SRS wiring can be identified by special yellow
outer coveflng.
Be sure to install the harness wires so that they are
pinched or interfering with other parts.
Make sure all SRS ground locations are clean and
grounds are securely fastened for optimum metal-to-
metal contact. Poor grounding can cause intermittent
problems that are difficult to diagnose.
GROUND TERMINAL
CONTACT
CONTACT
24-21
Spring-loaded Lock Connestor with
Built-in Short Gontact
The driver's airbag/front passenger's airbag and seat
belt tensioners have a spring-loaded lock connector with
a built-in short contact. When this connector is discon-
nected, the power terminal and the ground terminal in
the airbag connector are automatically shorted.
Conngctor halvcs diSconnested:
GROUND TERMINAL
SHORT CONTACT
CABIf REEL CONNECTOR
Connector halves connected;
ACT
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Page 1320 of 1395
)1,Disconnecting the Airbag Gonnectors and the Seat Belt Tensioner Connectors
Before removing the airbag or SRS related devices (the SRS unit, the cable reel and the seat belt tensioner connector), dis-
connecting connectors from related devices, or removing the dashboard or the steering column, disconnect the airbag
connectors and seat belt tensioner connectors to Drevent accidental deployment
@ Turn the ignition switch oFF and disconnect ths nogative cable from the battery, and wait at least ihree
minutes before beginning the tollowing procedures A and B. lprocedure B follows the procedure A.l
Before disconnecting the SRS main harness from the SRS unit, disconnect both airbags (C, D) and both seat belt tensioners
(F, H) {'98 - 00 models).
Before disconnecting the cable reel 2P connector (B), disconnect the driver's airbag connector (C).
Before disconnecting the left side wire harness 2P connector (E). disconnect the driver's seat belt tensioner 2P connector
(F) ('98 - 00 models).
Before disconnecting the right side wire harness 2P connector (G), disconnect the tront passenger's seat belt tensioner 2P
connector (H) ('98 - 00 models).
SRS MA1N HARNESS
)
i--- E t ----l
i Jl Jl l*",r* I I
LEFT SIDEWIRE HARNESS
){cont'd)
24-23
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Page 1321 of 1395
Precautions/Procedures
Disconneeting the Airbag Connectors and the Seat Belt Tensioner
Connectors (cont'd)
1.Disconnect the battery negative cable, then discon-
nect the positive cable from the battery. and wait at
least three minutes.
Disconnect the airbag and tensioner connectors
lsee page 24-22).
Driver's Airbag:
. Remove the access panel from the steering
wheel, then disconnect the 2P connector
between the driver's airbag and cable reel. When
disconnected, the airbag connector is automati-
callv shorted.
DRIVER'S AIRBAG2P CONNECTOR
Front Passsng€/sAirtag:
. Disconnect the 2P connector between the front
passenger's airbag and SRS main harness. When
disconnected. the airbag connector is automati-
callY shorted.
24-24
ACCESS PANEL
Seat Bslt Tensioner (38 - 00 modebl:
. Remove the left and (or) right center pillar lower
trim panels (see section 20).
. Disconnect the seat belt tensioner 2P connectors
from the left side wire harness (driver's side) and
(or) the right side wire harness (front passenger's
side). When disconnected. the seat belt tensioner
is automatically shorted.
CLIPS
DRIVER'S SIDE: LEFT SloE WIRE HARNESSFRONT PASSENGER'S SIDE: RIGHT SIDE WIREHARNESS
,--4
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Page 1326 of 1395
jIDiagnostic Trouble Code (DTG) Ghart -'97 model
SRS indicator lightDTCPos3ibls causeCorroctive actionSlc pago
doesn't come onnone(doesn't
come on)
Faulty SRS indicator light circuitTroubleshooting24-34
doesn't go off
none*' (doesn't
go off)
Faulty SRS indicator light circuit, internal
tailure of SRS unit, faulty SBS power supplyTroubleshooting24-37
Open in the driver's airbag inflator
Troubleshooting
24-50
Increased resistance in the driver's airbag
inflator24-50
Short to another wire in the driver's airbag
inflator or decreased resistance24-52
Short to power in the driver's airbag inflator24-54
Short to ground in the driver's airbag inflator24-56
Open in the passenger's airbag inflator
Troubleshooting
24-58
Increased resistance in the passenger's airbag
inflator24-54
Shon to another wire in the passenger's
airbag inflator or decreased resistance24-60
2-4Short to power in the passenger's airbag
inflator24-62
2-5Shon to ground in the passengar's airbag
inflator24-64
)r,(cont'd)
24-29
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Page 1328 of 1395
);Diagnostic Trouble Code (DTCI Chart -'98 - 00 models
SRS indicator lightDTCPossibls causeCorrectiva agtionSee page
doesn t come onnone
(doesn't
come on)
Faulty SRS indicator light circuitTroubleshooting24-34
doesn't go off
none*3
{doesn'tgo off)
No DTC
(light comes
on after self-
diagnosis)
Faulty SRS indicator light circuit. internal
failure of SRS unit, faulty SRS power supply
(VB line)
Troubleshooting24-42
Faulty SRS power supply (VA line)Troubleshooting24-47
1-1Open in the driver's airbag inflator
Troubleshooting
24-50
lncreased resistance in the driver's airbag
inflator24-50
1-3Short to another wire in the driver's airbag
inflator or decreased reslstance24-52
1-4Short to power in the driver's airbag inflator24-54
1-5Short to ground in the driver's airbag inflator24-56
2-1Open in the passenger's airbag inflator
Troubleshooting
24-54
Increased resistance in the passenger's airbag
inflator24-58
Shon to another wire in the passenger's
airbag inflator or decreased resistance24-60
2,4Short to power in the passenger's airbag
inflator24-62
Short to ground in the passenger's arrbag
inflator24-64
3-1Open in the driver's seat belt tensioner
Troubleshooting
24-66
3-2lncreased resistance in the driver's seat belt
tensroner24-66
Shon to another wire in the driver's seat belt
tensroner24-64
3-4Short to power in the driver's seat belt tensioner24-10
Short to ground in the driver's seat belt tensloner24-7 2
4-1Open in the passenger's seat belt tensioner
Troubleshooting
24-14
Increased resistance in the passenger's seat
belt tensioner24-7 4
4-3Short to another wire in the passenger's seat
belt tensioner24-7 6
4-4
4-5
Short to power in the passenger's seat belt ten-
sroner24-74
Shon to ground in the passenger's seat belt
tensroner24-AO
)-(cont'd)
24-31
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Page 1333 of 1395
Troubleshooting
From page 24-35
Check lhe wire harness otthe SRS indicator light circuit l2l:L Turn the ignitjon switch OFF.2. Disconnect the SRS main harness 3p connector from themain wire harness.3. Connect a voltmeter between the No. I terminal (+) ofthe SRS main harness 3P connector and qround.4. Turn the ignition switch ON (ll), and measure voltaqe.
ls there 8.5 V o. less tor six seconds atter the ignitionswitch has been turned ON
Short to power in th€ BLU wire of the main wiro halno3s;
Check th€ wire hahess of th6 SRS indicator ci.cuit {31:1. Turn the ignition switch OFF.2. Disconnect the battery negative cable, then the positivecable, and wait three minutes.3. Disconnect the driver's and front passenger,s airbag con-nectors {and disconnect the seat belt tensioner connectors}(see page 24-23).4. Disconnect the SRS main harness 18p connector from
5. Reconnect the battery positive cable, then reconnect thenegative cable.6. Connect a voltmeter between the No. 6 terminal (+) ofthe SRS main harness 'l8P connector and ground.7. Turn the ignition switch ON (ll), and measure voltage. Thereshould be 0.5 V or less.
Short to power in the BLU wire oI the SRS main harngas;
The SRS Indicator Light Doesn't Come On (cont,dl
'97 modol:
J
MAIN WIRE HARNESS3P CONNECTOR
UNDER.DASHFUSE/RELAY BOX
'98 - 00 models:
SRS MAIN HARN€SS3P CONNECTOR
MAIN WIRE HARNESS3P CONNECTOR
SRS MAIN HARNESS3P CONNECTOR
SRS MAIN HARNESS3P COI{NECTOB
FUSE/RELAY BOX
c803
SRS MAIN HARNESS18P CONNECTOR
24-36
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Page 1334 of 1395
The SRS Indicator Light Doesn't Go Off -'97 model
CAUTION: Whenever th€ ignilion switch i3 ON (lll, ol
has been turn€d OFF for less than three minutes, be
careful not to bump the SRS unit; the airbags could
accidenially deploy and cause damag€ or iniuries.
Try to reproduce the sRs indicator light:
1. Erasethe DTC memory (see page 24 28)
2. Turn the ignition switch ON {ll), and check that the SRS
indicator light comes on for about six seconds and thengoes off.
Doe3 the SRS indicator light slay on?
YESNO
Intermiftent ftilure, system is OK at this time. S€o Troubl€_
shooting Intermittent Failutes on p.ge 24_28.
Check the No. 13 (15 Al fuse:'L Turn the ignition switch OFF.
2. Check for blown No. 13 (15 A) fuse in the under dash
fuse/relay box.
ls lhe tuse OK?
YESNO
Replace the luse, and err3e the memory'1. Replace the No. 13(15A)fuse2. Erase the DTc memory (see page 24-28).
3. Turn the ignition switch ON (ll).
ioes the SRS indicatol light go off after 3ix s6conds?
YESNO
ENO
Confirm tho OTC, and continue ttouble3hooting.
Check for an open in the SRS main hatn€ss {VA lins}:
1. Disconnect the batterY negative cable, then disconnect
the positive cable, and wait for three minutes.
2. Disconnect the driver's and front passenger's airbag con
nectors (see page 24-23).
3. Disconnect the SRS main harness 18P connector from
the sRs unit.4. Reconnect the battery positive cable, then reconnect the
negative cable.5. Connect a voltmeter between the No. 7 terminal (+) ot
the SRS main harness l8P connector and 9rouncl6. Turn the ignilion switch ON {ll).
ls there battory voltage?
YESNO
Ooen in the SRS main harness {VA line); replace the
natnoss.
(A)
No. 13 115 Al FUSEUNOER.DASHFUSE/RELAY BOX
)
SRS MAIN HARNESSr8P CONNECTOR
SRS MAIN HARNESS 18P CONNECTOR
(cont'd)
24-37
SRS UNIT
To page 24 38
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