1997 HONDA CR-V Workshop Manual

Troubleshooting
DTC l-s
CAUTION: Whenever tho igniiion switch is ON {ll), or
has been lurned OFF for loss lhan thrse minules, be
caretul not to bump the SRS unit; the airbags could
accidentally deploy and cause damage or iniuries.
O'-
DRIVER'S AIRBAG2P CONNECTOR
'97 model:
SRS SIMULATORLEAD C07TAZ - SZ50r1A.nd SRS INFLATORSIMULATOR{2 0 JACK)07sAz - TBaolrA
SRS SIMULATORLEAO C07TAZ - SZ5011Aand SRS INFLATORSIMULATORt2 0 JACKI07sAz - TB{01rA
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'98 - 0O models:
CABLE REEL2P CONNECTOR
Try to reproduce the SRS indicator light:1. Erase the DTC memory (see page 24-28).2. Turn the ignition switch ON lll), and check that the SRSindicator light comes on for about six seconds and thengoes off.
Doos tho SRS indicator liqht stav on?
YESNO
Inte.mittent tailure,3y3tem is OK at this timo. 506Troubleshooling Intermittent Failures on Daq€ 24-28.
Check tor a short to ground in the driver's ai.bag intlator:1. Turn the ignition switch OFF.2. Disconnect the battery negative cable, then disconnectthe positive cable, and wa:l for three minutes.3. Disconnect the driver's airbag 2P connector from thecable reel 2P connector, Do not disconnect the passen,ger's airbag connector.4. Connect the special tool {2 O} to the cable reel 2P connec-tor.5. Reconnect the battery positive cable. then reconnect thenegative cable.6. Erase the DTC memory (see page 24 28).7. Read the DTC lsee page 24-261.
ls DTC 1-5 indicated?
YESNO
Short to ground in the driver's airbag inflator; replace thedriver's airbag (s6e page 24-871.
Chock for a short to ground in the cablo reel:1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.2. Disconnect the special tool i2 O) from the cable reel 2P
3. Remove the dashboard lower cover, and disconnect thecable reel 2P connector from the SRS main harness.4. Connect the special tool {2 O) to the SRS main harness2P connector. (cont'd)
To page 24-57
24-56
CAALE REEL2P CONNECTOR
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SRS MAIN HARNESS18P CONNECTOR
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From page 24 56
Check{or a short to ground in the cable reel (cont'd):
5. Reconnect the batterv positive cable, then reconnect thenegative cable.6. Erase lhe DTC memoty lsee page 24-28).7. Read the DTC lsee page 24 26).
ls OTC 1-5 indicated?
YESNO
Short lo ground in the cable reel; replace the cable reel{see oaoe 2,1-91}.
Check for a short to ground in the SRS main harness:'1. Disconnect the battery negative cable, the disconnect thepositive cable, and wait for three minutes.2. Disconnect the tront passenger's airbag 2P connector(6nd disconnect both seat belt tensioner connectors).3. Remove the special tool 12 {))from the SRS main harness2P connector.4- Disconnect the SRS main harness 18P connector fromthe sRs unit.5. Check resistance between the No. l terminal o{theSRSmain harness 18P connector and ground, and betweenthe No. 13 terminal of the SRS main harness 18P connec-tor and ground.There should be I M0 or more.
ls lhe resistance as soecitiod?
NOYES
Faulw SRS unit reDlace the SRS unit lsee paqe 24-951.
Short to ground in the SRS main harness; replace the SRSmain ham€ss,
24-57
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Troubleshooting
DTC 2-1 and DTC 2-2
CAUTION: Whenever the ignition switch is ON lll), or
has been turned OFF tor less than throe minutes, be
careful not to bump the SRS unit; the airbags could
accidentally deploy and cause damage or iniuries.
SRS MAIN HARNESS
SIMULATORI-EAD C
!a
07TAZ - SZ5tt11Aand SRS INFLATOR
/StMULATOR/ Q A JACKI
y' 07slz-TA411A
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Try to reproduce the SRS indicator light:1. Erase the DTC memory (see page 24-28).2. Turn the ignition switch ON (ll), and check that the SRSindacator light comes on for about sax seconds and then
Does the SRS indicator lioht stav on?
Intermittent tailure, svstem is OK ai lhis time. SeeTroubl*hooting Intermittent Failures on paqe 24-28.
Chock for an open in the passongor's airbag inflator:1. Turn the ignition switch OFF.2. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.3- Disconnect the front passenger's airbag connector lromthe SRS main harness (see page 24-2:,,.4. Connect the special tool (2 0) to the SRS main harness2P connector. Do not disconnect the driver's airbag con,nector.5. Reconnect the battery positive cable, then reconnect thenegative cable.6. Erase the DTC memory (see page 24-28).7. Read the DTC (see page 24 26!'.
ls DTC 2-1 or DTC 2-2 indicated?
Open or incrcased resistance in tho passenger's airbag
To page 24'59
24-58
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From page 24 58
Check fo. an oD6n in the SRS main harness:1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.2. Disconnectthe driver's airbag 2P connector land disconnectboth seat belt tensioner connectors) (see page 24 23).3. Disconnect the SRS main harness 18P connector fromthe SRS unit. Do not disconnect the soecial tool (2 Oifrom the SRS main harness.4. Check resistance between the No. 10 terminal and No. 14terminal of the SRS main harness 18P connector. Thereshould be aoorox. 2.0 - 3.0 g.
ls the .osistanc€ as soecified?
NOYES
Poor contacl ai the SRS main harness 18P connecloricheck lhe connector,.lf the conneclor is OK, substitute a known-good SRSunit, and recheck..lf the problem is still present, replace the SRS mainhatnesli,
Open or increased resistance in the SRS main harness;replace the harness.
UNITsRs
18P CONNECTOR
24-59
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Troubleshooting
DTC 2-3
CAUTION: Whenevor the ignition switch is ON { }, orhas been turned OFF for less than three minutes, becareful not to bump the SRS unit; lhe airbags couldaccidentally deploy and causo damage or iniuries.
{J
SIMULATORLEAD C07TAZ - SZ50I1Aand SRS INFLATOR
/STMULATOR/ I2n JACKI
y' 07sAz -fB1011A
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SRS MAIN HARNESS
Try to reproduce the SRS indicator light:1- Erase the DTC memory {see page 24 28).2. Turn the ignition switch ON (ll), and check that the SRSindicator light comes on for about six seconds and thengoes off.
Does the SRS indicator light stay on?
YESNO
Intermittont failur€, syslem is OK at this time. 560T.oubloshooting lntormittent Failur6 on page 24-28.
Check for a short to another wiro or decreased resbtanc€ inthe pa$€nger's airbag inflator:1. Turn the ignition switch OFF.2. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.3. Disconnect the front passenger's airbag 2P connectorfrom the SRS main harness (see page 24-23).4. Connect the special tool (2 O) to the SRS main harness2P connector. Do not disconnect the driver,s airbag con-nector.5. Reconnect the battery positive cable, then reconnect thenegative cable.6. Erase the DTC memory (see page 24 28i.7. Read the DTC (see page 24-26).
ls DTC 2-3 indicated?
NOYES
Short to another wir6 or decaea3€d r€aktance in the oas-senger's airbag intlatoi; replac€ the passenger's airbag{see pago 24-8t1.
To page 24 61
24-60
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SRS MAIN HARNESS18P CONNECTOR
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From page 24 60
Ch6ck tor a short to another wire or decreasod aGsistance inlh€ SRS main harness:1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.2. Disconnect the driver's airbag 2P connector (and disconnectboth seat belt tensioner connectors).3. Disconnect the SRS main harness '18P connector fromthe SRS unit. Do not disconnect the special tool (2 O).4. Check resistance between the No. 10 terminal and No. 14terminal of the SRS main harness 18P connector. Thereshould be aoorox. 2.0 - 3.0 0.
ls the rosistanc6 as specified?
YESNO
Faultv SRS unit; replace lhe SRS unit lsee page 24-95).
Short to anothor wire or decre.sed re3i3t.nce in the SRSmain harness; replac€ the SRS main harn*s.
24-61
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Troubleshooting
DTC2-4
GAUTION: Wh€never tho ignition switch is ON 0t). orhas been turned OFF for less than threo minutes, bocareful not to bump the SRS unit; the airbags couldaccidentally deploy and cause damaga or iniuriss.
SRS MAIN HARNESS
SIMULAYORLEAD C
Ot-
07TAZ - SZ5011A.nd SRS INFLATOR
/stMU|_ATOR/ t2 tr JAoKI
// olsAz-Tsn11A
ffi
Try to reproduce the SRS indicator light:1. Erase the DTC memory (see page 24-28i.2. Turn the ignition switch ON (lli, and check that the SRSindicator light comes on tor about six seconds and thengoes off.
Do€s the SRS indicator light stay on?
YESNO
Inlermittent tailure, system is OK at this tim€. SceTroubleshooting Intermitt€.f Failures on page 2+28.
Check for a short to power in the passengar,s ai.bag infla-tor:1. Turn the ignition switch OFF.2. Disconnect the baftery negative cable, then disconnectthe positive cable, and wait for three minutes.3. Disconnect the front passenger's airbag 2P connectorIrom the SRS main harness lsee page 24-23).4. Connect the special tool (2 O) to the SRS main harness2P connector. Do not disconnect the driver,s airbag con,nector,5. Reconnect the battery positive cable, then reconnect thenegative cable.6. Erase the DTC memory (see page 24-28).7. Read the DTC (see page 24-26|'.
ls DTC 2-4 indicsted?
YESNO
Sho.t power in the passenger's airbag infator; rsplece thopaisonge/i airbag {s€e pag€ 2il-89).
To page 24-63
24-62
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Frcm page24-62
Check lor a short to power in the SRS main harness:
1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.
2. Disconnect the drive/s airbag 2P connector (and disconnect
both seat belttensionerconnectors).3. Disconnect the SRS main harness 18P connector trom
the SRS unit.4. Remove the specialtool (2 0) from the SRS main harness
2P connector,5. Reconnect the batterv positive cable, then reconnect the
negative cable.6. Connect a voltmeter between the No. 10 (+) terminal of
SRS main harness 18P connector and ground.
7. Turn the ignition switch ON (ll). and measure voltage
There should be 0.5 V or less.8. Connect a voltmeter between the No. 141+) terminal of
the SRS main harness 18P connector and ground, and
measure voltage. There should be 0.5 V or less.
Are voltages .3 specifiedT
YESNO
Faulty SRS unit; replace the SRS unit (sce page 24'95).
Short to powor in the SRS main ha.ne3s; replace the SRS
main hdrness.
sRs.I8P CONNECTOR
24-63
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