1997 HONDA CR-V voltage
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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
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-1
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Page 1343 of 1395
Troubleshooting
The SRS Indicator Light Doesn't Go Off -,99 - 00 models (cont,d)
Frcm page 24-44{D)
Ch€ck the SRS indicator circuit input voltage:1. Reconnect the SRS main harness 18p connector to theSRS unit.2. Connect a voltmeter between the No. 1 terminal {+) ofthe dashboard 5P connector and ground.3. Turn the ignition switch ON {ll}, wait for six seconds,then measure voltage.
ls there 8.5 V or more?
YESNO
The problem has disapp€ared due to disconnecting andconnecting tho connectors. Be sure all terminals makegood contact, and .echeck the system {seo Troublo_shooting Intermiftent Failures on page 2it-2E).
Poo. contact at the SRS main harn8s 18p connector; checkthe connector.. lf the connoctor is OK, aubstitute a known-good SRS unit,end recheck.. lf the problem is still present, .6place tho SRS m.in har-ne33.
Ftom lage24-44(E)
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DASHEOARD WFE HARNESS5P CONNECTOR
c5ott
Wire side of lemaleterminals
J
Torminal side ol male termtnal
ca03
SRS MAIN HARNESS18P CONNECTOR
c806
SRS MAIN HARNESS3P CONNECTOR
DASHBOARD WIRE HARNESS
Check for an open in the dashboa.d wire harnessi1. Disconnect the main wire harness 24p connector fromthe dashboard wire harness.2. Check resistance between the No. 6 terminal of the SRSmain harness 18P connector and No. S te.minal of the mainwire harness 24P connector; there should be 0 - 1.0 0.
ls th€ resistance rs speciliedT
YESNO
Open in the 8LU wi.o ol the dashboard wire hrmess:repair the dashboard wire ha.ness.
Check fo. an open in the m.in wire hamess:1. Disconnect the SRS rnain harness 3p connector from themain wire harness,2. Check resistance between the No. 6 terminal of the SRSrnain harness 18P connector and No. 1 terminal of the SRSmain harness 3P connector;there should be 0 1.0O.
b the rGbtanco as sDecified?
NOYES
Open in the BLU wir6 of th6 main wire hernos3; reori.the main wire hamess,
Open in the SRS main harness; r€place the SRS main ha.-noss.
24-46
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Page 1345 of 1395
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
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Page 1352 of 1395
Ftom page24-54
Check for 6 short power in the cable r6el {cont'd):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 24-261.
b DTC 1-4 indicarodz
YESNO
Short to power in lhe cablo roel; replace th€ cabl€ ieel{see pago 24-91).
Check tor a short to power in th. SRS main harn$s:1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.2. Disconnect the front passenger's airbag connector {anddisconnect both seat belt tensioner connectors).3. Rernove the special tool (2 O) from the SRS main harness2P connector.4. Disconnect the SRS main harness 18P connector fromthe SRS unit.5. Beconnect the batterv positive cable, then reconnect thenegative cable.6. Connect a voltmeter between the No. 1 {+) terminal olthe SRS main harness 18P connector and body ground.7. Turn the ignition switch ON (ll), and measure voltage.There should be 0.5 V or less.8. Turn the ignition switch OFF.9. Connect a voitmeter between the No. 13 {+i terminal ofthe SRS main harness 18P connector and body ground.10.Turn the ignition switch ON lll), and measure voltage.There should be 0.5 V or less.
Are voltages as specified?
YESNO
Faulty SRS unit; replaco th€ SRS unit lsoo pas6 24-95).
Short to power in th€ SRS main hamoss; roplece the SRSmain haanass.
SRS MAIN HARNESS18P CONNECTOR
24-55
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Page 1360 of 1395
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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Page 1368 of 1395
)
From page 24-70
Chock tor a short lo power in the sid€ wi.e harness:1. Disconnect the left side wire harness 2P connector fromthe SRS main harness 2P connector.2. Connect the sDecial tool {2 O) to the SRS maan harness2P connector,3. Eraso the DTC memory.4. Read the DTC.
b DTC 3-4 indiclted?
NOYES
Short to power in the left side wire ha.n6ss; replece thenarness.
Check for a short to power in the SRS mein harness:1. Disconnect the negative battery cable, and wait for threemrnutes.2. Disconnect the driver's and lront passenger's airbags,and front passenger's seat belt tensioner connectors (seepage 24-231.3. Disconnect the SRS main harness 18P connector tromthe SRS unit.4. Disconnectthe specialtool(2 0)from the SRS main harness2P connector, then reconnectthe negative battery cable.5. Turn the ignition switch ON (lll.6. Check lor voltage between the No. 4 terminal ol the SFSmain harness '18P connector and body ground. Thereshould be 0.5 V or less. Check for voltage between the No.11 terminals ol the SRS main harness 18P connector. Thereshould be 0.5 V or less.
ls tho voltage as specffied?
YESNO
Faulty SRS unit; replace tho SRS unit lsee paqe 24-95).
Short to power in the SRS m.in harness;.eplace the SRSmain hame3a.
LEFT SIDE WIREHARNESS2P CONNECTOR
SRS MAINHARNESS
h
(
C
00
2P CONNECTOR
SRS SIMULATORLEAO C07TAZ - SZ5011Aand SRS INFLATOR
(2 0 JACKI07SAZ - TB/t011A
)
SRS MAIN HARNESS18P CONNECTOR
)
24-71
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Page 1376 of 1395
)
RIGHT SIDE WIREHARNESS2P CONNECTOR
SRS MAIN2P CONNECTOR
SBS SIMULATORLEAD C07TAZ - SZ5011Aand SRS INFLATORSIMULATOR \(2 0 JACK) \07sAz-T84011A \\
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SRS MAIN HARNESS18P CONNECTOR
Ftom page 24 78
Check for a short to power in the side wire harn6s:1. Disconnect the right side wire harness 2P connector fromthe SRS main harness 2P connector,2- Connect the special tool (2 0) to the SRS main harness2P connector.3. Erase the DTC memory.4. Read the DTC.
ls DTC 4-{ indicated?
YESNO
Short to power in the right side wire harness; replacethe harness.
Check tor a short to oow6r in the SRS main harness:1. Disconnect the negative battery cable, and wait for threemtnutes,2. Disconnect the driver's and front passenger's airbags,and driver's seat belt tensioner connectors (see page 24-23).3. Disconnect the SRS main harness 18P connector fromthe sRS unit.4. Disconnect the special tool i2 0) from the SRS main harness 2P connector, then reconnect the negative batterycaore.5. Turn the ignition switch ON (ll).
6. Check for voltage between the No. 5 terminal of the SRSmain harness 18P connector and body ground. Thereshould be 0.5 V or less. Check for voltage between theNo. 12 terminals of the SRS main harness 18P connector.There should be 0.5 V or less.
ls the voltage as specified?
NOYES
Faulty SRS unit; replace the SRS unit (see pase 24-95).
Short to power in the SRS main harness; replace the SRSmain harness.
24-79
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Page 1379 of 1395
Troubleshooting
DTC 8-6 -'97 model
CAUTION: Whonever th€ ignition switch is ON fll). olhas b€en turned OFF for les3 than thro€ minutes, becaretul not to bump the SRS unit; tho airbags couldaccidentally deploy and cause damage or iniurios.
Besides indicating an abnormality in the SRS unit, DTC8-6 may also indicate that two problems equivalent toDTC 1-1 and 2-4, 'l-4 and 2-1, or 1-4 and 2-4 occurred atthe same time. Proceed in the order shown below.
18P CONNECTOR
\
Chock the SBS main harnGs:1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.2. Disconnect the driver's airbag and front passenger,safrDag connectors {see page 24-23).3. Disconnect the SRS main harness t8p connector fromthe sRs unit.4. Reconnect the battery posative cable, then reconnect thenegative cable.5. Turn the ignition switch ON 0t).6. Connect a voltmeter and measure voltage between theNo. 10 terminal ot the SRS main harness l8p connectorand ground, and between the No. 14 terminal and qround.There should be aDorox.0-0.5 V.
Are voltages as specitied?
NOYES
Shon to power in tho SRS main harness; reglace the SRSmain harn€63.
Chock the SRS mein harnels and the cable re€l:Connect a voltmeter and measure voltage between the No. 1terminal of the SRS main harness l8p coonector andground, and between the No. 13 terminal and ground. Thereshould be approx.0 0.5 V.
Are voltages as specifiod?
YESNO
Faulty SRS unit; replace the SRS unit {sae pago 24-951.
To page 24-83 (A)
24-82
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