1999 HONDA CR-V airbag

)1,Disconnecting the Airbag Gonnectors and the Seat Belt Tensioner Connectors
Before removing the airbag or SRS related devices (the SRS unit, the cable reel and the seat belt tensioner connector), dis-
connecting connectors from related devices, or removing the dashboard or the steering column, disconnect the airbag
connectors and seat belt tensioner connectors to Drevent accidental deployment
@ Turn the ignition switch oFF and disconnect ths nogative cable from the battery, and wait at least ihree
minutes before beginning the tollowing procedures A and B. lprocedure B follows the procedure A.l
Before disconnecting the SRS main harness from the SRS unit, disconnect both airbags (C, D) and both seat belt tensioners
(F, H) {'98 - 00 models).
Before disconnecting the cable reel 2P connector (B), disconnect the driver's airbag connector (C).
Before disconnecting the left side wire harness 2P connector (E). disconnect the driver's seat belt tensioner 2P connector
(F) ('98 - 00 models).
Before disconnecting the right side wire harness 2P connector (G), disconnect the tront passenger's seat belt tensioner 2P
connector (H) ('98 - 00 models).
SRS MA1N HARNESS
)
i--- E t ----l
i Jl Jl l*",r* I I
LEFT SIDEWIRE HARNESS
){cont'd)
24-23
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Precautions/Procedures
Disconneeting the Airbag Connectors and the Seat Belt Tensioner
Connectors (cont'd)
1.Disconnect the battery negative cable, then discon-
nect the positive cable from the battery. and wait at
least three minutes.
Disconnect the airbag and tensioner connectors
lsee page 24-22).
Driver's Airbag:
. Remove the access panel from the steering
wheel, then disconnect the 2P connector
between the driver's airbag and cable reel. When
disconnected, the airbag connector is automati-
callv shorted.
DRIVER'S AIRBAG2P CONNECTOR
Front Passsng€/sAirtag:
. Disconnect the 2P connector between the front
passenger's airbag and SRS main harness. When
disconnected. the airbag connector is automati-
callY shorted.
24-24
ACCESS PANEL
Seat Bslt Tensioner (38 - 00 modebl:
. Remove the left and (or) right center pillar lower
trim panels (see section 20).
. Disconnect the seat belt tensioner 2P connectors
from the left side wire harness (driver's side) and
(or) the right side wire harness (front passenger's
side). When disconnected. the seat belt tensioner
is automatically shorted.
CLIPS
DRIVER'S SIDE: LEFT SloE WIRE HARNESSFRONT PASSENGER'S SIDE: RIGHT SIDE WIREHARNESS
,--4
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)Steering-related Precautions
Stooring Wh€el and Csble Re6l Alignm€nt
To avoid misalignment of the steering wheel on
reassembly, make sure the wheels are turned straight
ahead beJore removing the steering wheel.
To center the cable reel, rotate the cable reel clockwise
until it stops, Then rotate it counterclockwise (approxi-
mately two and a half turns) until the arrow mark on the
cable reel label points straight up.
Steering Column Bemoval
CAUTION: Before removing the stosring column, tirsi
disconneqt tha connsctor between tho cabls roel and
the SRS main harness.
lf the steering column is going to be removed without
dismounting the steering wheel, lock the sieering by
turning the ignition key to o-LOCK position, or remove
the key trom the ignition so that the steering wheel will
not turn.
LABEL
NOTE:
. When the airbag and cable r6el are disconnected, and
the battery is reconnected and the ignition switch is
turned ON (ll), the SRS unit will store this as an open
in the driver's airbag inflator, and the SRS indicator
light will come on, In such a case, make sure to con-
firm the DTC, then clear the SRS unit memory.
. For disconnecting the spring-loaded lock type con-
nector, refer to page 24-22.
'97 model:
SRS MAIN HARNESS2P CONNECTORCABLE REEL2P CONNECTOR
'98 - 00 models:
UNDER-DASHFUSE/RELAY BOX
Do not replace the original steering wheel with any other
design because it will make it impossible to properly
install the airbag (use only genuine Honda replacement
partsl.
After reassemblv, confirm the wheels are still turned
straight ahead and that the steering wheel spoke angle
is correct. lf minor spoke angle adjustment is necessary,
do so only by adjusting the tie-rods, not by removing
and repositioning the steering whee .
24-25
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Troubleshooting
Self-diagnostic Procedures
The self-diagnostic function of the SRS system allows it to locate the causes of system problems and to store this informa-
tion in memory, For easier troubleshooting, this data can be retrieved via a data link circuit.
. When you turn the ignition switch ON (ll). the SRS indicator will come on. lf it goes off after six seconds, the system is
normal.
. lf there is 8n abnormality, the system locates and defines the problem. stores this information in memory, and turns
the SRS indicator light on. The data will remain in the memory even when the ignition switch is turned off or if the bat-
terv is disconnected.
. When you connect the SCS service connector to the service check connector (2P), and turn the ignition switch ON (ll),
the SRS indicator light will indicate the diagnostic trouble code (DTC) by the number of blinks.
. After reading and recording the DTC, proceed with the troubleshooting forthis code.
Precsutions
. Use only a digital multimeter to check the system. lf it's not a Honda multimeter. make sure its output is 10 mA (0.01 A)
or less when switched to the smallest value in the ohmmeter range. A tester with a higher output could damage the
airbag circuit or cause accidental airbag deployment and possible injury.
. Whenever the ignition switch isON (ll). or has been turned OFF for less than three minutes, be careful nottobumpthe
SRS unit; the airbags could accidentally deploy and cause damage or injuries.
. Before you remove the SRS main harness, disconnect the airbag and tensioner connectors (see page 24-23).
. Make sure the battery is sufficiently charged (see section 23). lf the battery is dead or low, measuring values won't be
correct.
. Do not touch a tester probe to the terminals in the SRS unit or harness connectors, and do not connect the terminals
with a jumper wire. Use only the backprobe set and the SCS service connector.
For backprobing spring-loaded lock type con nectors, .efet to page 24-22.
Reading the DTC
When the SRS indicator light is on, read the DTC using one of these methods;
A. Connect the Honda PGM Tester to the 16P Data Link Connector {DLC), and follow the tester's prompts. lf the tester
indicates no DTC, DTC 9-1 and DTC 9-2, double-check by jumping the service check connector (2P) and watching the
SRS indicator light (see next page).
HONDA PGM TESTER
DATA LINK CONNECIOR {DLCI {16P)
24-26
,1
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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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Troubleshooting
Diagnostic Trouble Code (DTC) Chart -'97 model (cont'dl
*1: In case of an intermittent failure DTC 9-1, it means there was an internal failure of the SRS unit or a faultv SRS indica-tor light circuit. Do the troubleshooting for intermittent failures {see page 24-28),*2: DTC cannot be read with a Honda PGM Tester; check by jumping the SCS service connector.
NOTE: Before troubleshooting DTCS 5-1 through 8-5, check battery/system voltage. lf voltage is low. repair the chargingsystem before troubleshooting the SRS system.
l*
SRS indicator lightDTCPossible causeCorrestive actionSee page
doesn't go off
Internal failure of the SRS unitSRS unit replace-
ment24-965-3
5-4
5-5
o-l
Internal failure of the SRS unitSRS unit replace-
ment24-966-2
6-4
lnternal failure of the SRS unitSRS unit replace-
ment24-967-2
7-3
8-1
Internal failure of the SBS unitSRS unit replace-
menr24-96a-2
8-5
8-6Internal failure of the SRS unit or two failures
at a timeTroubleshooting24-82
Internal failure of the SRS unitSRS unit replace-
menr24-96
9-2Faulty SRS power supply (VB line)Troubleshooting24-84
'10- 1SRS airbags deployed (SRS unit must be
replaced)
SRS unit replace-
ment24-96
24-30
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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
The SRS Indicator Light Doesn't Come On
CAUTION: Whenever the ignition switch is ON D, orhas been turned OFF for less than three minutes, becareful not to bump the SRS unit; the airbags couldaccidentally deploy and cause damage or iniuries.
Ch6ck the power supply (fuse):Turn the ignition switch ON {ll), and check whether the otherindicator lights come on (brake system, e(c.r.
Do the other indicator liglrts com6 on?
Check the No. 25 (7.5 A) fuse in the under-dash tuse/relayDOX.
ls the tus€ oK?
NO
Check the bulb:Replace the No.25 (7.5 A) fuse, and check that theSRS indicator light comes on.
Does the SRS indicator liqht come on?
YESNO
END
YES
Check the wire h.rnesi kwe€n fus€.nd gauge .3sembly:Check for an open in the wire harness between fuseNo. 25 (7.5 Al and the gauge assembly, and repair. Checkthat lhe SRS indicato.lighi
Does the SRS indic.tor liqht com6 on?
END
YESNO
Check the SRS indicator light bulb:1. Turn the ignition switch OFF.2. Remove the gauge assembly.3. Check lor blown SRS indicator tight bulb.
ls the SRS indicator tight bulb OK?
YESNO
Check the SRS indicator light circuit:Replace the bulb, and reconnect the gauge assemblyconneclors. Then turn the ignition switch ON {ll).
Does the SRS indicator light come on?
I YEs No
:ND
(A) To page 24-35(B) To page 24 35
24-34
lr-
lu
-J
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