Page 1317 of 1395
Precautions/Procedures
SRS Unit Precautions
Take extra care when painting or doing body work in
the area below the dashboard. Avoid direct exposure
of the SRS unit or wiring to heat guns, welding, or
spraying equipment.
Disconnect the driver's/front passenger's airbag con-
nectors and seat belt tensioner connectors before
working below the dashboard near the SRS unit.
After any degree of frontal body damage, or after a
collision without airbag deployment, inspect the SRS
unit for physical damage. lf it is dented, cracked, or
detormed, reolace it,
Be sure the SRS unit is installed securelv.
Do not disassemble the SRS unit.
Store the SRS unit in a cool {less than about
104"F/40"C) and dry {less than 80o/o humidity. no
moisture) place. Do not spill water or oil on the SRS
unit, and keep it awav from dust.
During installation or replacement, be careful not to
bump (impact wrench, hammer, etc.) the area a[ound
the SRS unit, The airbags could accidentally deploy
and cause damage or injury.
24-20
,..4
Inspection After Deployment
After a collision in which the airbags were deployed.
replace the SRS unit, and inspect the following:
1. Inspect all the SRS wire harnesses. Replace, don't
repair, any damaged harnesses
2. Inspect the cable reel for heat damage, lf there is any
damage. replace the cable reel.
3. After the vehicle is completely repaired, turn the
ignition switch on. lf the SRS indicator light comes
on for about six seconds and then goes off, the SRS
system is OK. lf the indicator light does not function
properly, go to SRS Troubleshooting.
rD
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Page 1339 of 1395
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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Page 1363 of 1395
Troubleshooting
DTC 3-1 and DTC 3-2
CAUTION: Whenever the ignition switch is ON flll, orhas been turned OFF for less than three minutes, b€careful not to bump th€ SRS unit; the airbags couldaccidenlally deploy and cause damage or iniuries.
DRIVER'SSEAT BELT TENSIONERLEFT SIOE WIREHARNESS2P CONNECTOR2P CONNECTOR
-
\
SRS SIMULALEAD C07TAZ - SZ501rAand SRS INFLATORSTMULAToR It2 0JACKI IoTsaz - TB4ot lA t
24-66
Try to reproduce the SRS indicatoi light:1. Erase the DTC memory (see page 24-29).2. Turn the ignition switch ON 1 ), and check that the SRSindicator light comes on for about six seconds and thengoes off.
Does the SRS indicaior lighr stay on?
YESNO
Intermittent failure, system is OK at this time. SeeTroubleshooting lfiermittent Failu.6s on page 24-28.
Check tor an open in the driver's seat b6lt tensioner:1. Disconnect the negative battery cable, and wait lor threeminutes.2. Disconnect the drave/s seat belt tensioner 2p connectorfrom the left side wire harness 2P connector (see page24-23). Do not disconnect the lront passenger,s seat belttensioner 2P connector.3. Connect the special tool {2 O) to the left side wire harness2P connector,4. Reconnect the negative baftery cable5. Erase the DTC memory {see page 24,28).6. Read the DTC (see page 24-26).
ls OTC 3-1or DTC 3-2 indicatedT
YESNO
Open or increased resistance in the d.iver's seat belt ten-sioner; replace the driver's seat belt {see page 2il-91).
To page 24 67
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Page 1365 of 1395
Troubleshooting
DTC 3-3
CAUTION; Whenever the ignition switch is ON llll, or
has b€on turned OFF for l6ss than three minutes, be
carelul not to bump the SRS unit; the airbags could
accidontally deploy and cause damage or iniuries.
ORIVER'SSEAT EELT TENSIONER2P CONNECTOR
SRS SIMULATORLEAO C07TAZ-525011Aand SRS INFLATORsrMULAroR It2 0 JACK| tozsAz - ls{orra !
s
Try to r€produce 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.
Does the SRS indicator lighl stay on?
YESNO
Intarmittent failure, system is OK at this time. 506Troubl€shooting Intormittant Failures on paqe 24-28.
Check tor a 3hort to anoth€r wire or decreased resistance inihe driver's seat bolt tan3ioneri1. Disconnect the negative battery cable, and wait for threeminutes,2. Disconnect the driver's seat belt tensioner 2P connectorfrom the left side wire harness 2P connector (see page24-23). Do not disconnect the front passenger's seat belttensioner 2P connector,3. Connect the special tool (2 O) to the left side wire harness2P connector.4. Reconnect the negative battery cable5. Erase the DTC memory (see page 24-28).6. Read the DTC (see page 24.26l'.
ls DTC 3-3 indicated?
NOYES
Short to another wire or decreased.esistance in thedriver's s6at beh tcnsioner; replac€ the diive.'s seat bolt{se€ prge 24-911.
To page 24 69
24-64
LEFT SIDE WIREHARNESS2P CONNECTOB
ra
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Page 1375 of 1395
Troubleshooting
DTC 4-4
CAUTION: Whenever the ignition switch is ON (ll), or
has been turned OFF tor less than thlee minutes. be
careful nol to bump the SRS unit; the airbags could
accidontally deploy and cause damage or iniuries.
RIGHT SIDE WIREHARNESS2P
FRONTPASSENGER'S
SRS SIMULATORLEAD C07TAZ - SZ5011Aand SRS INFLATOR
,StMULATOR/(2 o JACK)
t _07SAZ - TBiro1 1A
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.
Doos the SRS indicator light 3t.y on?
vEsNO
Intermittent f!ilure, system is OK at this time. SeeT.oubleshooting Intermittent F.ilures on page 24-28.
Check tor a 3horl lo power in the frolt pass€nge.'s s€at belttensaoneri'1. Disconnect the negative battery cable, and wait for threemrnutes.2. Disconnect the front passenger's seat belt tensioner 2Pconnector from the right side wire harness 2P connector{see page 24-23}. Do not disconnect the driver's seat belttensioner 2P connector.3. Connect the special tool (2 O) to the right side wire har-ness 2P connector.4. Reconnect the negaiive baftery cable.5. Erase the DTC memory (see page 24-28).6. Read the DTC lsee page24-261.
ls DTC 4-,1 indicated?
YESNO
Short to power in the front passong6r'3 seat belt ten-sioner; replace the front passongar'3 s€at beh {see page21-31.
To page 24'79
24-78.
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Page 1393 of 1395
SRS Unit
Replacement (cont'dl
6. lnstall the new SRS unit. lf the Torx bolts you
removed in the previous step have red threads,
replace the Torx bolts.
TORX BOLTS9.8 N.m 11.0 kgf.m,7.2 lbtft)Uso a Torx T30 bit.
Connect the SRS main harness l8P connector to the
SRS uniu push it into position until it clicks.
Install the SRS unit covers (right and left). Make
sure the covers snap together in the middle.
7.
8.
TORX BOLTS9.8 N.m {1.0 kgf.m, ?.2Use . Torx T30 bh,
SRS UNIT
24-96
-
9. Reconnect the driver's aibag 2P connector to the
cable reel 2P connector, then reinstall the access
panel on the steering wheel.
Reconnect the front passenger's airbag connector
to the SRS main harness.
Reconnect the left side wire harness 2P connector
to the driver's seat belt tensioner and the right side
wire harness 2P connector to the front passenger's
seat belt tensioner ('98 - 00 models).
Reinstall the center pillar lower trim panels {'98 - 99
modelsl.
Reconnect the battery positive cable, then the nega-
tive cable.
After installing the SRS unit, confirm proper system
operation: Turn the ignition switch ON (ll); the SRS
indicator light should come on for about six seconds
and then go off,
10.
1't.
12.
13.
14.
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