Seat belt HONDA CR-V 1998 RD1-RD3 / 1.G Service Manual

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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)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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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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);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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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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Troubleshooting
The SRS Indicator Light Doesnt Go Off - ,99 - 00 models
CAUTION: Whenever the ignition switch is ON {lll, orhas been turnod OFF for less than three minutes, becareful not to bump the SRS unit; the airbags couldaccidentally deploy and cause damage or iniuries.
T.y to reproduce the SRS indicator tight:1. Erase the DTC memory (see page 24-28).2. Turn the ignition switch ON { }, and check that the SRSindicator light comes on for about six seconds and thengoes off.
Does the SRS indicator tight stey on?
NOYES
Intermittent failure, system b OK at this time. 56€ Trouble-shooting Inle.mittent Failures on page 24-2g.
Check the No. 23 (10 Alfuse:1. Turn the ignition switch OFF.2. Check for blown No. 23 flO A) fuse in the under dashluse/relay box.
ls the fuse OK?
YESNO
Repl.ce the tuse, and erase the memory1. Beplace the No. 23 (10 Ai fuse.2. Erase the DTC memory (see page 24-28).3. Turn the ignition switch ON flt).Does the SRS indicator light go ott after six secondt
YES NO
I
END
Conti.m tha DTC, and continue troubl*hooting.
Chock for an open in the SRS main harness (Vg line):1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.2. Disconnect the driver,s and front passenger,s airbag con_nectors, and discoonect the seat belt tensioner connectors(see page 24-23).3. Disconnect the SRS main harness 18p connector fromthe sRs unit.4. Reconnect the baftery positive cable, then reconnect thenegative cable.5. Connect a voltmeter between the No. 3 terminal (+) ofthe SRS main harness 18p connector and oround.6. Turn the ignition switch ON 0l).ls there battery voltage?
YESNO
Open in the SRS main harness (VB line); replaco thenatness,
(A)
To page 24 43
tl-
24-42
No. 23 110 Al FUSE
FUSE/RELAY BOX
SRS MAIN HARNESS 18P CONNECTOR
|\
-1
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No DTC
CAUTION: Whenever the ignition switch is ON {lll, ol
has been tulned OFF for less than three minutes, bs
careful not to bump the SRS unit; the airbags could
accidenially deploy and cause damago or iniuries.
UNDER-DASHFUSE/RELAY BOX
)
SBS MAIN HARNESS18P CONNECTOR
)(cont'd)(B)
To page 24-48
Ch€ck the fuse:1. Turn the ignition switch OFF.2. Check for blown No. 13 ('15 A) fuse in the under-dashIuse/relay box.
b th€ fuse OK?
YEs NO
1A) To page 24 48
Replace the fuse. Turn the ignition switch ON {ll), and check
that the luse doesn't blow.
ls the fuse OK?
YESNO
The probl€m has disappeared. Ted{rive the v€hicle and
see Troubfeshooting Intermittont Failurea on page 21-28.
Check Ior short to ground between tho underdash tuse/
relay box and the SRS unil.1. Turn the ignition switch OFF.2. Disconnect the battery negative cable, then disconnect
the positive cable, and wait for three min utes.
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 l8P connector from
the sRs unit.5. Check resistance between the No. 7 terminal of the SRS
main harness 18P connector and ground.
There should be 1 M0 or more.
ls the .esistanco as soecified?
YESNO
Faulty SRS unit; replace lhe SRS unit {see page 24-951.
No. 13 (r5 Al FUSE
SRS MAIN HARNESS 18P CONNECTOR
24-47
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Troubleshooting
No DTC (cont'dl
ltofi page 24-47(B)
Chock for short to ground in the SRS main harne3s:1. Disconnect the SRS main harness 2P connector lrom theunder dash fuse/relay box.2. Check resrstance betwoen the No.7 terminal of the SRSmain harness 18P connector and ground. There shouldbe 1.0 M0 or more.
k the ro3irtancc as specifi€d?
YESNO
Short to ground in tho under-da3h lus6/rolay box;replace the under-dash fuse/relav box,
Short to glound in the SRS m.in hernoss; roplace tho SRSmain hatnei3.FUSE/RELAY BOX
Check tor an op€n in the SRS main harness:1. Turn the ignition switch OFF.2. Disconnect the battery negative cable, then disconnectthe positive cable. and wait for th ree minutes.3. Disconnect the driver's and front passenge/s airbag con,nectors, and disconnect the seat belt tension€r connectors{see page 24-23}.4. Disconnect the SRS main harness 18P connector fromthe SRS unit.5. Reconnect the battery positive cable, then reconnect thenegative cable.6. Connect a voltmeter between the No. 7 terminal oI theSRS main harness 18P connector and ground.7. Turn the ignition switch ON (lll , and measure voltage.
Poor conlact .t the SRS main harness l8P connesto.:check th6 connector,. It the connector is OK, substitute a known-good SRSunit, and rgcheck.. It lhe problem ii still p.es6nt, rcplace the SRS mlinhamess.
(A) From page 24-47
To page 24-49
SRS MAIN HARNESS 18P CONNECTOR
SRS MAIN HARNESS 18P CONNECTOR
J3
24-48
-a
1
J
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)
)
SRS MAIN HARNESS18P CONNECTOR
From page 24 50
Check for an opon in the cabl€ re€l (cont'd):
5. Reconnect the batterv positive cable, then reconnect thenegative cable,6. Erase the DTC memory (see page 24-28).7. Read the DTC (see page 24-2d.
ls DTC 1-1 or DTC 1-2 indic.ted?
YESNO
Open or increased resistance in the cable reel; replacethe cable reel (see paqe 24-91J.
Check for an open in the SRS main harne$:1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait lor three minutes.2- Disconnect the front passenger's airbag connector landdisconnect both seat belt tensioner connectors),3, Disconnect the SRS main harness 18P connector fromthe SRS unit. Do not disconnect the special tool 12 O)from the SRS main harness.4. Check resistance between terminals No. 1 and No. 13 ofthe SRS main harness 18P connector.There should be aoorox.2.0 3.0 0.
ls the rcsistanc€ as soecified?
NOYES
Poor contact at the SRS main harnoss 18P conn€ctor;check the connector.. It the connecior is OK, substitute a lnown-good SRSunit, and recheck..lf the problem is still present, .eplace the SRS mainharness,
Opon or inc.oased rc3istance in the SRS main harnoss;roDlace tho ha]nss.3.
24-51
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From page 24-52
Chock for a shon in th6 cablo recl {cont'dl:5. Reconnect the battery oositive cable, then reconnect thanegative cable.6. Ersse the DTC memory (see page 24-28).7. Read the DTC (see page 24-26l'.
ls DTC 'l-3 indic{tod?
NOYES
Short in the csble reel; replace tha cabls rcol lsao paga
24-911.
Chock for a short in th€ SRS main ha.nors:1. Disconnect the battery negative cable, th€n disconnectthe Dositive cable, and wait for three minutes.2. Disconn€ct tho lront passengor's airbag connector (and
disconnect both seat belt tensioner connectors).3. Disconnect the SRS main harness 18P connector fromthe SRS {rnit. Do not disconnect the special tool (2 0)from the SRS main harness 2P connector.4. Check the resistance between terminals No. 1 and No. 13of SRS main harness 18P connector.There should be aDorox. 2.0 - 3.0 0.
b th€ rsciitlnce a3 sDecifi6d?
NOYES
Faulty SRS unit; rspl.c. th6 SRS unit l.co p.sc 2a-95,,
Shori in the SRS m.in h.rn.e!; ropbce the SRS main htr-ne33.
SRS UNIT
)SRS MAIN HABNESS18P CONNECTOR
c806
)
(., Lzl 3 ll63
1518
Wire side ottormrnats
24-53
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