Fault HONDA CR-V 1999 RD1-RD3 / 1.G Manual PDF

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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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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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From page 24'64
Check for a short to ground in the SRS main harnessl1. Disconnect the battery negative cable, then disconnectthe posilive cable. and wait for three minutes.2. Disconnect the driver's airbag 2P connector (and discon-nect both seat belt tensioner connectors),3. Disconnect the SBS main harness 18P connector fromthe sRs unit.4. Remove the special tool (2 O) from the SRS main harness2P connector,5. Check resistance between the No. 10 terminal of the SRSmain harness 18P connector and ground, and betweenthe No. 14 terminal of the SRS main harness 18P connector and ground. There should be 1 M0 or more.
ls the resistance as sD€citied?
NOYES
Faultv SRS uniu replace the SRS unit {see paqe 24-951.
Short to ground in the SRS main harn€ss; replac€ ihe SRSmain harness.
sRs18P CONNECTOF
24-65
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LEFT SIDE WIREHARNESS2P CONNECTOR
SRS MAINHARNESS2P CONNECTOR
C
00
SRS SIMULATORLEAD C07TAZ - SZ5011Aand SRS INFLATOR
{2 0 JACKI07sAz - T84011A
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sRsUNIT
SRS MAIN HARNESS.I8P CONNECTOR
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From page 24-66
Check for an oFn in thc aide wir6 harne$:1. Disconnect the left side wire harness 2P connector fromthe SRS main harness 2P connector.2. Connect the special tool (2 o) to the SRS main harness2P connector.3. Erase the DTC memory.4. Read the DTC.
ls DTC 3-l or DTC 3-2 indicated?
YESNO
Ooen or incrers€d reeidance in the lelt side wire hame3s;r€Dlaca the hamess.
Check for an open in the SRS main harness:1. Disconnect the negative battery cable, and wait for threeminutes.2. Disconnect the driver's and front passenger's airbags,and front passenger's seat belt tensioner connectors (see
page 24-231.3. Disconnect the SRS main harness 18P connector from
the SRS unit. Do not disconnect the special tool (2 O)from the SRS main harness 2P connector.4. Check resistance between the No. 4 and No. 11 terminalsof the SRS main harness 18P connector. There should be2.0 - 3.0 0.
13lhe resistance as soecified?
NOYES
Faulty SFS unil or poor contad at the SRS main h.m€ss18P connector and th€ SRS unit. check the connectionbetween the SRS main harn$s 18P connector and theSRS unit. lf the connector i3 OK. r€Dlaco ihe SRS unit(s66 pas6 24-951.
ODen or incaoased resistance in the SRS msin harness;reolace the SRS main harn€ss.
terminals
24-67
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From page 24-68
Check lor a short to another wire or decreased reaistance inthe side wire harnoss:1. Disconnect the left side wire harness 2P connector tromthe 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 OTC 3-3 indicated?
YESNO
Short to another wire or decrcased resbtance in the le-hside wire harness; reglace the harneas.
Check lor a 3hort to another wire or dec.eased resistance inthe SRS main ha.ne$:1. Disconnect the negative battery cable, and wait for threeminutes,2. Disconnect the driver's and front passenger's airbags,and front passenger's seat belt tensioner connectors (seepage 24 23l'.3. Disconnect the SRS main harness 18P connector fromthe SRS unit.4. Disconnect the special tool (2 O) from the SRS main harness2P connector.5. Check resistance between the No. 4 and No. 11 terminals ofthe SRS main harness 18P connector. There should be1 M0 or more.
ls the resistanc€ as soocified?
NOYES
Faulty SRS unit; replace the SRS unit lso€ paqe 24-95).
Short to another wire or decr€asod rosistanco in the SBSmain harness; replace the SRS main harness.
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LEFT SIDE WIREHARNESS2P CONNECTOR
SRS MAINHANNESS
C0a
2P CONNECTOR
SRS SIMULATORLEAD C07TAZ - SZ5011Aand SRS INFLAToRSIMULATOR{2 0 JACK}07sAz - TB4011A
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SRS MAIN HARNESS18P CONNECTOR
SRS UNIT
lerminals.
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t,rutEr-
24-69
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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
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C
00
2P CONNECTOR
SRS SIMULATORLEAO C07TAZ - SZ5011Aand SRS INFLATOR
(2 0 JACKI07SAZ - TB/t011A
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SRS MAIN HARNESS18P CONNECTOR
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24-71
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Ftom page 2!-7 a
Check lor .n oo.n in the side wire hsrness:1. Disconnect the right side wire harness 2P connector fromthe SRS main harness 2P connector.2. Connect the special tool (2 Oi to the SRS main harness2P connector.3. Erase the DTC memory.4. Bead the DTC.
ls DTC 4-1 or DTC 4-2 indicated?
NOYES
Open or inc.oased resistance in th€ right side wire har-ness; replace the harness.
Check tor an open 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. Do not disconnect the special tool (2 0)from the SRS main harness 2P connector.4- Check resistance between the No. 5 and No. 12 terminalsof the SRS main harness 18P connector. There sho!ld be2.0 - 3.0 0.
ls the resistanca as soecified?
NOYES
Faulty SRS unit or poor contact at the SRS main harne3s18P conneclor and the SRS unit, check the connestionb€tween the SRS main harness 18P conn€ctor and th6SRS unit. lf the connector is OK, reDlace the SRS unit{see page 24-951.
Open or increesed resistanco in the SRS main h.rnes3;replace the SRS main harness.
RIGHT SIDE WIREHARNESS2P CONNECTOR
SRS MAIN HARNESS2P CONNECTOR
SRS SIMULATORLEAD C07TAZ - SZ5011A.nd SRS INFLATORSIMULATOR(2 0 JACK)07sAz - TB4011A
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SRS MAIN HABNESS18P CONNECTOR
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le.minals.
24-75
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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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From page 24'80
Check lor a short to ground in the sido wir€ harness:1. Disconnect the rightsidewire harness 2P connector fromthe SRS main harness 2P connector.2. Connect the special tool {2 O) to the SRS main harness2P connector.3. Erase the DTC memorv.4. Read the DTC.
b DTC 4-5 indicrtad?
YESNO
Short to ground in the right side wire harness; replac.the harne3!.
Check tor a short io ground in the SRS main ha.nessi1. Disconnect the negative battery cable, and wait for threeminotes,2. Disconnect the driver's and front passenger's airbags,and driver's seat belt tonsioner connectors (see page 24-231.3. Disconnect the SRS main harness 18P connector from
4. Disconnect the special tool (2 0) from the SRS main har-ness 2P connector.5. Check resistance between the No. 5 terminal oI the SRSmain harness 18P connector and body ground, andbetween the No. 12 terminal of the SRS main harness18P connector and body ground. There should be 1 M0or more,
b th€ re3i3tance as specified?
NOYES
Faulty SRS unit replace the SRS unit {see pace 2a-951.
Short to ground in the SRS main harness; replace the SRSmain harnoss.
RIGHT SIDE WIREHARNESS2P CONNECTOR
SRS MAIN HARNESS2P CONNECTOR
SRS SIMULATORLEAD C07TAz - SZ5011Aand SRS INFLATORSIMULATOR \{2 0 JACK} \07SAZ-TB,O114 \I
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SRS MAIN HANNESS18P CONNECTOR
24-81
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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
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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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