Dash harness HONDA CIVIC 1996 6.G Service Manual

Combination Light Switch Test
1.Remove the driver's dashboard lower cover and steering column covers (see section 20)
Disconnect the 4P and 7P connectors from the switch.
Inspect the connector and socket terminals to be sure they are all making good contact
. lf the terminals are bent, loose. or corroded, repair them as necessary, and recheck the system.
. lf theterminals look OK, check for continuity between them ineach switch position according tothetables lfthere
is no continuity between any of them. check for continuity in the switch harness
- lf there is continuity in the switch harness. replace the combination light switch
- lf there is no continuity in the switch harness, replace it.
2.
4P CONNECTOR
COMBINATION LIGHT SWITCH7P CONNECTOR
HsadlighUDimmer/Passing Switch :
* : Canada
rrr r-l
l(rr mf ItffiTI A3 A11l
Terminal
Position
B182B3*84B586
Headlight switch
OFF
o---o
LOWo---oo-----o
HIGHo-----oo---o
Passing switchOFF
ONo-----o
Turn Signal Switch :
Teminal
;',*;----__\A1A2A4
RIGHToo
NEUTRAL
LEFToo
23-165

Switch Test
lMake sure you have the anti-theft code for the
radio, then write down the frequencies for the
radio's preset buttons ('99 - 00 models).
Disconnect the battery negative cable, then disconnect
the positive cable, and wait at least three minutes.
Disconnect the driver's airbag connector (see sec-
tion 24).
Remove the driver's dashboard lower cover (see
section 20).
Disconnect the cable reel sub-harness 3P connector
from the main wire harness.
2.
3.
4.
5.
1.
MAIN WIREHARNESS3P CONNECTOR
SUB-HABNESS3P CONNECTOR
REEL
6.
Terminalside olmale terminals
Check for continuity between the No. 2 terminal of
the cable reel sub-harness and body ground with
the horn switch pressed.
alf there is continuity, the horn switch is OK.
lf there is no continuity, go to step 6l-
-\
1.
8.
10.
'I 1.
9.
Remove the driver's airbag assembly (see section
24), then disconnect the horn connector from the
steering wheel.
Check for continuity between the No. 2 terminal of
the cable reel sub-harness 3P connector and horn
positive terminal.
lf there is no continuity, replace the cable reel
(see section 24).
lf there is continuity, repair or replace the horn
swtlcn,
lf all tests prove OK, reinstall the driver's airbag
assembly (see section 24), and reconnect the cable
reel sub-harness connector.
Reconnect the driver's airbag connector, and rein-
stall the access panel on the steering wheel.
Reconnect the battery positive cable, then the negative
termtnar.
After installing the airbag assembly, confirm proper
system operation:
12.
Turn the ignition switch ON (ll); the SRS indica-
tor light should come on for about six seconds
and then go off.
Make sure both horn buttons work.
13. Enter the anti-theft code for the radio, then enter the
customer's radio station presets ('99 - 00 models).
HORN CONNECTOR
23-199

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.

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,

Gomponent/Wiring Locations
Index: Without Front Passenger's Airbag (some Canada Modelsl
SRS INDICATOR LIGHT (ln the gauge assembly)Troubleshooting, page 24-13Gauge assembly, section 23
DRIVER'S AIRSAGReplacement,page 24-67Disposal, page 24-70
SRS UNITGROUNO
To HORN SWITCH
SRS MAIN HARNESS
SRS UNIT{lncluding safing sensorand impact sensor)Replacement. page 24,76
To CRUISE CONTROLSET/RESUME SWITCH
oo/ \oo
To DRIVER,S AIRBAG
DASHBOARD WIRE HARNESSto SRS INDICATOR LIGHT inGAUGE ASSEMBLY5P CONNECTOR
SERVICE CHECKCONNECTOR {2P}IB8N, BLKI
SRS MAINto UNDER-DASHFUSE/RELAY BOX2P CONNECTOR
SRS MAIN HARNESSto SRS UNIT18P CONNECTOR
SRS MAIN HARNESSto MAINWIREHARNESS3P CONNECTOR
MEMORY ERASE SIGNAL(MES) CONNECTON (2P'
IGRY, GRYI o. IGRN, GRNI
MAIN WIRE HARNESSto DASHBOARD WIRE HARNESS24P CONNECTOR
24-4
DUMMY RESISTOB

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.

SRS Indicator Light Wire Connections
SRS Indicator Light Power Circuit
DASHBOARD WIRE HARNESS
To UNDER-DASHFUSE/RELAY BOX -
20P CONNECTOR
SRS Indicato. Light Control Circuit
To SRS UNIT
tI
SRS MAIN HARNESS
C41 1, C412 : Terminal sido of mdlo t6rminalsC501, C5O2, C508, C801. C802, C807 : Wi.6 sidc of fomalo t.rminals
MAIN WIBE HARNESS
BLU
C508 -+ To GAUGE ASSEMBLY
c41 1
To GAUGE ASSEMBLY
at
C501 : DASHBOARDWIRE HARNESS 2oP CONNECTORC508 : DASHBOARD wlRE HARNESS 5P CONNECTORC801 : SRS MAIN HARNESS 2P CONNECTORC807 : SRS MAIN HARNESS 18P CONNECTOR
C802 : SRS MAIN HARNESS 3P CONNECTORC412 : MAIN WIRE HARNESS 3P CONNECTORC41 1 : MAIN WIRE HARNESS 24P CONNECTORC502 : DASHBOARD WIRE HARNESS 24P CONNECTOR
GRY
OI
24-25

Troubleshooting
The SRS Indicator Light Doesn't Come On
CAUTION: Whonever ths ignition switch is ON {ll}, or
has been turned OFF tor less than three minutes. be
careful not to bump the SRS unit; the airbagls) could
accidentally deploy .nd caus6 damage or iniuri€s.
Check tho pow€r supply (fuse):
Turn the ignition switch ON (ll), and check whether the otherindicator lights come on (brake system, etc.).
Oo the other indicator liohts como on?
YESNO
Check th6 fuso:Check the No. 25 {7.5 A) fuse in the under-dash tuse/relayb"t
ls th6 tu36 OK?
NOYES
Check the bulb:Replace the No. 25 (7.5 A) fuse, and check that theSRS indicator light comes on.
Doos the SRS indicator liqhl come on7
I YES No
END
Check tho wire harns b€twecn fus6 and gauge aasambly:Check for an open in the wire harness between luseNo. 25 {7.5 A) and the gauge assembly, and repair. Checkthat the SRS indicator light comes on.
Doo. tho SRS indic.tor light como on?
I yEs No
I
END
Check tho SRS indicator light bulb:1. Turn the ignition switch OFF.2. Remove the gauge assembly.3. Check for blown SRS indicator light butb.
ls the SRS indicator light bulb OK?
NOYES
Ch.ck the SnS indicator liglrt circuit:Replace the bulb, and reconnect the gauge assemblyconnectors. Then turn the ignition switch ON {ll}.
Ooes th6 SRS indicato. llght come on?
I YEs No
:ND
lAl To page 24-27
24-26
lB'J fo page 24-27
))
No. 25 (7.5 Al FUSE

)
From page 24-26
(A)
From page 24-26
(B)DASHBOARD WIRE HARNESS
5P CONNECTOR
It
MAIN WIRE HARNESS2,rP CONNECTOR
DASHAOARD WIREHARNESS 2irPCONNECTOR
c41 1
(cont'd)
24-27
check the sRs indicator light circuit:1. Disconnect the dashboard wire harness 5P connector
from the gauge assembly.2. Connect a voltmeter between the No. 1 terminal (+) of
the 5P connector and ground.
3. T!rn the ignition switch ON 1ll), and meas!re voltage.
ls there 8.5 V or loss lor six seconds atter the ignition
swilch has been turned ON {lll?
YESNO
Faulty SRS indicator light circuit in the gauge e$embly;
replace the SRS printed circuit boa.d in tho gauge
ass€mblY.
Check the wire harness otthe SRS indicator light circuil {1):'1. Turn the ignition switch OFF.2. Disconnect the main wire harness 24P connector from
the dashboard wire harness.
3. Connect a voltmeter between the No. 5 terminal {+) of
the main wire harness 24P connector and 9round4. Turn the ignition ON (ll), and measure voltage.
ls thore 8.5 V or lcss tor tix second3 .Itor the ignition
switch has b6en turned ON lll)?
YESNO
Short to oower in the BLU wire ol the dashboald wiroharness; rgpaii the ham€ss.
To page 24-28
ar

)The SRS lndicator Light Doesn't Go Off -'96 - 97 Models
CAUTION: 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{sl could accidentally deploy and cause damage or iniuries
Try to reproduce lhe SRS indicator light:
1. Erase the DTC memory (see page 24'15).
2. Turn the ignition switch OFF, and wait for ten seconds.
3- Turn the ignition switch ON {ll), and check that the SRS indi
cator light comes on for about six seconds and goes off
Does the SRS indicEtor light stay on?
[*NO
Intermittent lailure, system is OK at this time. See
Troubloshooting Int6rmittent Failures on page 24'15
Ch€ck the No. 13 {15 A} and No. 23 (10 A) fuses:
1. Turn the ignition switch OFF.
2. Check for blown No. 13 (15 A) and No.23 (10 A)fuses in
the under dash fuse/relay box.
Are the fuses OK?
vEs No
Replace the luses, and erase the memory1. Replace the fuses.2. Connect the SCS service connector to the MES con
nector.3. Erase the DTC memory (see page 24 15).
4. Turn the ignitaon switch OFF, then disconnect the SCS
service connector from the MES connector.5. Turn the ignition switch ON (ll).
Does the sRS indicato, tigt t go or "ne. "ii--JJl
-I YEs NO1
ENDi
Conlirm the DTC, and continue troubl6shootilg.
Check for an open in the SRS main harness {VA linell'1. Tu.n the ignition switch OFF.
2. Disconnect the battery negative cable, then disconnect
the positive cable, and wait for three minutes.
3. Disconnect the driver's (and front passenger's) airbag
connectorls) (see page 24 11).
4. Disconnect the SBS main harness '18P connector from
the sRS unir.5, Reconnect the battery positive cable, then reconnect the
negative cable.6. Connect a voltmeter between the No. 7 tetminal (+) of
the SRS main harness 18P connector and ground.
7. Turn the ignition switch on.
b there battery voltageT
YESNO
(A)
To page 24 30
Open in the SRS main harness IVA line); replace the SRS
main harness.
l.J
SBS MAIN
(cont'd)
No. 't3 {15 Al FUSE
SRS UNIT
HARNESS 18P CONNECTOR
II
24-29