spring HONDA CR-V 1998 RD1-RD3 / 1.G Workshop Manual

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Supplemental Restraint System (SRS)
Special Tools .."....."" 24-14
Component/Wring Location
lndex - '97 model ..........'.." '.....""" 24-15
Component/Wiring Location
lndex - '98 - 00 models ..............." 24-16
Description .'.........."'.24'17
Circuit Diagram .........24'14
Precautions/Procedures
General Precautions ......".."'........... 24-19
Airbag/Seat Belt Tensioner
Handling and Stolage ....''........... 24-19
SRS Unit Precautions ...............'...... 24-20
lnspeciion After Deployment .......'.24'20
) SpringJoaded Lock Connector
with Built-in Short Contact '...'....24-21
Spring-loaded Lock Connectors .."' 24-22
BackProbing SPring-loaded Lock
Conneetors ,.......24-22
Disconnecting the Airbag Connectors and
the Seat Beh Tensioner
Connectors ....'....24-23
Steering-lelated Precautions .......... 24-25
Troubleshooting
Self -diagnostic Procedures ............. 24-26
Reading the DTC .................. .....".."' 24'26
Erasing the DTC Memory ................24-28
Troubleshooting lntermittent
Faifures "'...........24'24
Diagnostic Trouble Gode {DTC}
Chart -'97 model ....""....... "......24-29
Diagnostic Trouble Gode (DTCI
Chart -'98 - 00 models ............. 24-31
SRS Indicator Light Wire
Connections ','," 24'33
Ff owcharts ....-........24'34
Driver's Airbag
Repf acement ..'......21'87
Front Passenger's Airbag
Repfacement .....'.',24'AS
Gable Reel
Replacement .......'.24-91
SRS Unit
Replacement .........24-95
Airbag/Seat Belt Tensioner
Disposaf .................24'97
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JWiring Precautions
. Never attempt to modify, splice or repair SRS wiring.
NOTE: SRS wiring can be identified by special yellow
outer coveflng.
Be sure to install the harness wires so that they are
pinched or interfering with other parts.
Make sure all SRS ground locations are clean and
grounds are securely fastened for optimum metal-to-
metal contact. Poor grounding can cause intermittent
problems that are difficult to diagnose.
GROUND TERMINAL
CONTACT
CONTACT
24-21
Spring-loaded Lock Connestor with
Built-in Short Gontact
The driver's airbag/front passenger's airbag and seat
belt tensioners have a spring-loaded lock connector with
a built-in short contact. When this connector is discon-
nected, the power terminal and the ground terminal in
the airbag connector are automatically shorted.
Conngctor halvcs diSconnested:
GROUND TERMINAL
SHORT CONTACT
CABIf REEL CONNECTOR
Connector halves connected;
ACT
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Precautions/Procedures
Spring-loaded Lock Connectors
Some SRS system connectors have a spring-loaded lock.
Disconnecting
To release the lock, pull the spring-loaded sleeve toward
the stop while holding the opposite halt of the connector.
Then pull the connector halves apart. Be sure to pull on
the sleeve and not on the connector half.
SPRING-LOADEDSLEEVE
Connecting
1. Hold the pawl-side connector hall and press on the
back of the sleeve-side connector half in the direction
shown. As the two connector halves are Dressed
together, the sleeve is pushed back by the pawl. Do
not touch the sleeve.
When the connec-tor halves are completely connected,
the pawl is released. and the spring-loaded sleeve
locks the connector.
SPRING.LOAI'ED
24-22
Backprobing Spring-loaded Lock
Connectors
. When checking voltage or resistance on this type of
connector the first time, it is necessary to remove the
retainer to insert the tester probe from the wire side.
It is not necessary to reinstall the removed retainer;
the terminals will stay locked in the connector hous-
inq.
To remove the retainer, insert a tlat-tip screwdriver
between the connector body and the retainer. then
carefully pry out the retainer. Take care not to break
the connector.
RETAINER*Discard after removal.
RETAINEN
RETAINER
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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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