Cruise Gontrol
3.
1.
2.
Main Switch Test/Replacement
Remove the driver's dashboard lower cover (see sec-tion 20).
Carefully push out the switch from behind the dashboard.
Disconnect the connector from the swtrcn.
MAIN SWITCH
BULBS {0.84 Wt
Check for continuity between the terminals in eachswitch position according to the table.
lf there is no continuity. reDlace the switch.
4.
Terminal
r**
--\235
OFFo--oGa\-o\:./\a/
ONo-/a-oo--o\:/\:/
23-244
Set/Resume Switch
5.
Test/Replacement
2.
1.
MAIN WIREHARNESS3P CONNECTOR
Make sure you have the anti-theft code for theradio, then write down the frequencies for theradio's preset buttons. ('99 - 00 models).Disconnect the battery negative cable, then discon-nect the positive cable, and wait at least three min-utes.
Disconnect the driver's airbag connector (see sec-tion 24).
Remove the dashboard driver's lower cover (see sec,tion 20).
Disconnect the cable reel sub harness 3p connectorfrom the main wire harness.
CABLE BEELSUB-HARNESS3P CONNECTOS
Terminalside ofmale terminals
Check for continuity between the terminals of thecable reel sub-harness 3P connector in each switchposition according to the table.
L Terminal
Position123
SET (ON}o----o
BESUi,|E IONIo-----o
lf there is continuity, and it matches the table,the switch is OK.
lf there is no continuity in one or both positions,
go to step 7.
7. Remove th€ two screws, then remove the switch'
Check for continuity between the terminals in switch
position according to the table.
Terminal
t"-"t*
-\23
SET (ON)o--o
RESUI\4E {ON}o----o
lf there is continuity, and it matches the table,
replace the cable reel.
lf there is no continuity in one or both positions,
reDlace the switch.
8.
SET/NESUME
l-l
23-245
11.
q
10.
12.
lf all tests prove OK, reconnect the cable reel and
cable reel sub-harness connector, then reinstall the
steering column covers
Reconnect the driver's airbag connector. and rein-
stall the access panel on the steering wheel.
Reconnect the battery positive cable, then the nega-
tive cable.
After connecting the airbag connectors, 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.
Enter the anti-theft code for the radio, then enter the
customer's radio station presels {'99 -00 models)'
)
Troubleshooting
Sef f -dia gnostic Proctdurcs ............. 2+13
Reading the DTC .............................. 2+13
Erasing the DTC Mcnrory ................ 24-15
Troubleshooting h.ttnitt.nt
Failures ..............24-15
SRS U n it ldcntificrtion .................... 24- 1 6
Diagnostic Troublc Code (DTC)
Chart - '96 - 97 Models..."'."....... 24-17
Diagnostic Trouble Code (DTCI
Chart - '$ - 00 Models '.........""' 24'19
SRS lndicaror Light Wire
connections ...'.,24-25
Ff owcharts ........,,,,.24-26
Airbag
Repfacemant ...'.'...24-67
Disposaf .................24'70
Cable Reel
Repfacement .........24'72
SRS Unh
Repfacement ..'......24'76
l-l
-+
sRs
Supplemental Restraint System (SRSI
Speciaf Tools ... ...........24'2
Component/Wirin g Locations
fndex ................ ......24-3
Description ................ 24-5
Circuit Diagram ......." 24'6
Precautions/Procedures
Generaf Precautions ...............,,,,,,,.. 24-7
Airbag Handling and Storage .........24-7
SRS Unit Precautions ...................... 24-8
Inspection After Deployment ........' 24-8
Wiring Precautions ................... ....... 24'9
Backprobing Spring-loaded Lock
Connectors .......,24-9
Spring-loaded Lock Connectol ....,,. 24-10
Spring-loaded Lock Connector with
Built-in Short Contact ................. 24-10
Disconnecting the Airbag
Connector(sl .....' 24'11
Steering-related Precautions ...,.,.,,. 24'12
Component/Wiring Locations
)
Index: With Front Passenger's Airbag
SRS INDICATOR LIGHT (ln the gauge assemblvl
Troubleshooting, Page 24 13
Gauge assembly, section 23CABLE REEL
Replacemenlpage 2!-t 2
To HORN SWITCH
SRS UNIT(lncluding safing sensor
and imPact sensorl
Replacement Page 24 76
To DRIVER'S AIRBAG
DASHBOARD WIRE HARNESS
to SRS INDICATOB LIGHT in
GAUGE ASSEMBLY5P CONNECTOB
DBIVER'S AIRBAG
Beplacement,page 24-61Disposal, page 24 70FRONT PASSENGER'S AIBBAG
Replacement, Page 24_67
Disposal, Page 24 70
t
SRS MAIN HARNESSto CABI-E RE€L2P CONNECTOR
SRS MAIN
SERVICE CHECKCONNECTOR {2PI
IBRN, BLK]
to UNOER-OASHFUSE/RELAY BOX2P CONNECTOR
SRS MAIN HARNESSto FRONT PASSENGER'SAIRBAG2P CONNECTOB
SRS MAIN HARNESSto SRS UNITr8P CONNECTOR
SBS MAIN HARNESSto MAINWIRE HARNESS3P CONNECTOR
MEMORY ERASE SIGNAL(MES) CONNECTOR I2P)
[GRY, GRYI or IGRN. GRNI
MAIN WIRE HARNESSto DASHBOARD WIRE HARNESS
24P CONNECTOR
2+3
t,
Description
)
The sRS is a safety device which, when used in coniunction with the seat belt, is designed to help protect the driver land
front passenger) in a frontal impact exceeding a certain set limit. The system consists of the sRS unit {including safing
sensor and impact sensor), the cable reel, the driver's airbag (and front passenger's airbag)
FRONT PASSENGEB'SAIRAAG
DRIVER'S AIRBAG
CABLE REEL
SRS UNtT
t
Operation
The main circuit in the SRS unit senses and judges the force of impact and, if necessary, ignites the inflator charge(s) lf
battery voltage is too low or power is disconnected due to the impact, the voltage regulator and the back-up power clrcult
resoectivelv will keep voltage at a constant level.
For the SRS to operate:
(1) The impact sensor must activate. and send electric signals to the mlcroprocessor'
(2) The microprocessor must compute the signals' and must send signals to the airbag inflator(s)'
{3) The inflator(s) must ignite and deploy the airbag(s)'
_"-_-l
Ir3B!#h i
!.. I
ffi,*
Self-diagnosis System
A self-diagnosis circuit is built into the SRS unit; when the ignition switch is turned ON (ll), the SRS indicator light comes
on and goes off after about six seconds if the system is operating normally
lf the liglt does not come on, or does not go off after six seconds, or if it comes on while driving, it indicates an abnormal-
ity in the system. The system must be inspected and repaired as soon as possible
For better serviceability, the memory will store the cause of the malfunctlon, and the data link circuit passes on the infor-
mation from the memory to the data link connector (DLC). This intormation can be read with the Honda PGM Tesler con-
nected to the DLC (16P).
l,
24-5
Precautions/ Procedures
)General Precautions
r Carefully inspect any SRS part before you install it Do
not install any part that shows signs of being dropped
or improperly handled' such as dents, cracks or defor-
mation:
- Airbags- Cable reel
- SRS unit
-
Use only a digital multimeter to check the system lf
it's not a Honda multimeter, make sure its output ls
1O 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 acci-
dental deployment and possible injury'
I Do not install used SRS parts from another vehicle
When making SRS repairs, use only new pans'
) Except when performing electrical inspections'
always disconnect both the negative cable and posl-
tive cable from the battery, and wait at least three
minutes before beginning work
r Replacement of the combination light and wiper/
washer switches and cruise control switch can be
done without removing the steering wheel:
- Combinalion light and wiper/washer switch replace
ment, see section 23
- Cruise control sevresume switch replacement' see
section 23.
. Whenever the ignition switch is ON {ll), or has been
turned OFF for less than three minutes' be careful not
to bump the SRS unit; the airbag(s) could accidental-
ly deploy and cause damage or injury'
. Whenever the airbag{s) has(have) been activated'
replace the SRS unit.l,
2+7
Airbag Handling and Storage
Do not try to disassemble the airbag assembly. lt has no
serviceable parts Once an airbag has been operated
(deployed). it cannot be repaired or reused'
For temporary storage of the airbag assembly during ser-
vice. olease observe the following precauttons:
. store the .emoved airbag assemblv with the pad sur-
face uo The driver's (and front passenger's) airbag
connecto''s'-as {have) a built.in short contact (see
page 2a-l 1
: | ..r r-+r-a k imninncrlv slorcd lace down,-""dd.r6t dtatltt-,tl could propel the unit whh enough
force lo c.usa 3a.ix! intury
AIRBAG CONNECTORS(With built in shon contact)
. Store the removed airbag assembly on a secure flat
surface away from any high heat source {exceeding
212"FI1OO"CJ and free of any oil' grease, detergent or
water.
CAUTION: lmproper handling or storage can intern'lJy
damage the airbag assembly, making it inoperativo
lf you suspect the airbag assembly has been dam€cd'
inslall a new unit. and relsr lo the Deployment/DisPG'l
olocedules for disposing ol the damaged airbag
Precautions/Procedu res
SRS Unit Precautions
Take extra care when painting or doing body work inthe area below the dashboard. Avoid direct exDosureof the SRS unit or wiring to heat guns, welding. orsprayang equipment.
Disconnect the airbag connector(s) before discon-necting SRS harness connectors (see page24-1|1J.
After any degree of frontal body damage, or after acollision without airbag deployment, inspect the SRSunit for physical damage. lf it is dented. cracked, ordeformed, replace it.
Be sure the SRS unit is installed securely.
Do not disassemble the SRS unit.
Store the SRS unit in a cool (less than about 104.F/40"C) and dry (less than 80% humidity, no moisture)place. Do not spill water or oil on the SRS unit, andkeep it away from dust.
During installation or replacement, be careful not tobump (impact wrench, hammer, etc.) the area aroundthe SRS unit. The airbag(s) could accidentally deptoyand cause damage or injury.
24-8
Inspection After Deployment
After a collision ln which the airbag(s) was (were)
deployed, replace the SRS unit, and inspect the following:
1. Inspect all the SRS wire harnesses. Replace. don,trepair, any damaged harnesses.
2. Inspect the cable reel for heat damage. lf there is anydamage, replace the cable reel.
3. After the vehicle is completely repaired, turn theignition switch on. lf the SRS indicator light comeson for about six seconds and then goes off. the SRSsystem is OK. lf the indicator light does not functionproperly, go to SRS Troubleshooting.
Preca utions/Procedures
Spring-loaded Lock Connector
Some SRS system connectors have a spring-loaded lock.
Disconnecting
To release the lock, pull the spring-loaded sleeve towardthe stop while holding the opposite half of the connecror.Then pull the connector halves apart.
NOTE: Be sure to pull
connector half.
on the sleeve and not on the
SPRING-LOADEOSLEEVE
Do not pull on thishalf of the connector.
Connecting
1. Hold the pawl-side connector half, and press on theback of the sleeve-side connector half in the directionshown. As the two connector halves are pressed
together, the sleeve is pushed back by the pawl.
NOTE: Do not touch the sleeve.
When the connector halves are completely connected,the pawl is released, and the spring-loaded sleevelocks the connector.SPRING.LOADEDSLEEVE
24-10
Spring-loaded Lock Connector with
Built-in Short Contact
The driver's ajrbag (and front passenger,s) airbag has(have) a spring-loaded lock connector with a builr-inshort contact. When this connector is disconnected, thepower terminal and the ground terminal in the airbaaconnector are automatically shoned.
Connector halves disconnected:
SHORT CONTACT
Conneqtor halves connected:
GROUND TERMINAL
CABLE REEL CONNECTOR
GROUND TERMINAL