1999 HONDA CR-V Drive

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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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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);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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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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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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