dashboard HONDA CIVIC 1999 6.G Repair Manual

Funstion Test
CAUTION: Bo careful not to damago the moonroof switch
or ths driv6r's dashboard lowsr cover when prying the
3witch out.
NOTE: Check the No. 51 (20 Al fuse in the under-hood
tuse/relay box and No.24 (7.5 A) fuse in the under-dash
fuse/relay box, before testing.
1. Prv the switch out of the driver's dashboard lower
cover.
swtTcH
Wire side of female terminals
2. Disconnect the 4P connector from the switch
4P CONNECTOR
l-t
23-237
Connect the No. 1 (YELI terminal to body ground
with a jumper wire, then turn the ignition switch ON
(ll). The moonroof should open.
. lf the moonroot opens, check the switch.
. lf the moonroot does not open, check for:
- an open in the YEL wire.
- faulty moonroof open relay.
- faulty moonroof close relay,
- poor ground (G401, G402).- fa u lty open/close switch.
Connect the No. 3 (YELnED) terminal to body ground
with a jumper wire. then turn the ignition switch ON
(ll). The moonroof should close.
. lf the moonroof closes. check the switch.
. lf the moonrool does not close, check for:
- an open in the YEURED or GRN/RED wire'
- faulty moonroof close relaY.
- faulty moonroot oPen relaY.
- faulty tilvclose switch.
Connect the No. 2 (BLU) terminal to body ground with
a jumper wire, then turn the ignition switch oN (ll).
The moonroof should tilt up.
. lf the moonroof tilts up, checkthe switch.
. lf the moonroof does nottilt up, checkfor:
- an open in the BLU wire.
- taulty tilvclose switch
Connect the No. 3 (YEURED) terminal to bodY ground
with a jumper wire, then turn the ignition switch ON
(ll), The moonroof should tilt down.
lf the moonroof does not tilt down, the open/close
relay must be taulty.
Check for continuity to body ground on the No. 4
{BLK}terminal.
There should be continuity.
. lf there is continuity, check the switch
. lf there is no continuity, check for:
- an open in the BLK wire
- poor ground (G401, G402).
6.
7.

Cruise Control
Gontrol Unit Input Test
SRS components are located in this area. Review the SRS component locations, precautions, and procedures in the SRSsection (24) before performing repairs or service.
1. Remove the driver's dashboard lower cover and knee bolster (see section 20).
2. Disconnect the l4P connector from the control unit.
3. 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 the terminals look OK, make the following inpul tests at the connecror.- lf any test indicates a problem, find and correct the cause, then recheck the system,- lf all the input tests prove OK, the control unit must be faulty; replace it.
14P CONNECTOR
CRUISE CONTROL UNIT
*i '99 00 models with A/T
23-242
GRN/WHT LT GRN/RED LT GRN/BI-K
8LU/GRN*
Wire side of female terminals

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

)
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

)
From page 24'30(B)
To page 24-33
5P CONNECTOF
mcsogA#
I Btu lYEtWire side of fomale
lUUpeA Wtng terminals
OASHBOARD WIRE HARNESS
It
Wire side ol femaletetmtnals
SRS MAIN HARNESSlAP CONNECTOR
(D)
To page 24'33
DASHBOARD WIRE HARNESS5P CONNECTOR
(cont'd)
DASHBOARD WINE HARNESS
Check th. SBS indicatot circuit:
1. Turn the ignition switch OFF.
2. Removo the gauge assembly.
NoTE: Do n;t disconnect the dashboard wire harness 5P
connsctor lrom the gauge assembly
3. Turn the ignition switch ON (ll).
4. Connect th€ dashboard wire harness 5P connector termi-
nals No. 1 and No.5with a jumperwiro.
Doo3th. SRS indicstor light go offf
Fautty SRS indicltot light citouit in th. grugc a$cmbly;
rcpl.ce the SRS ptint.d cilcuit boaJd in thc gtugs
b€ 1 MO or more.
Ch.ck tor a ihort to glound in th. SRS IndioltoJ light cir'
cuit:1. Turn the ignition switch OFF.
2. Disconnect the dashboard wire harness 5P connector
from the gauge assemblY
3. Check resistance between the No. 1 terminal of the dash
board wire harness 5P connector and ground. There should
Ch.ck to. an opon in tho SnS indic.tor light circuh:
1. Ch6ck resistanc€ between the No 6 terminal of the SRS
msin harness 18P connector and No. 'l terminal ot the
dashboard wire harness 5P connector; there should be
Wire side ot female terminals
24-31
or

Troubleshooting
The SRS Indicator Light Doesn't Go Off -'96 - 97 Models (cont'dl
From page 24-31
Ch6ck for a shon lo ground in tho m.in wire harness:1. Disconnect the dashboard wire harness 24P connectorfrom the main wire harness,2. Check resistance between the No. 5 terminal of the mainwire harness 24P connector and ground. There should be1 M0 or more.
Short to ground in the dashboard wire harness; repairthe dashbo..d wire harnoss.
SRS MAIN HARNESS3P CONNECTOR
Wire side oI femaleterminals
24-32
\
MAIN WIRE HARNESS
HARNESS
Check for a short to ground in the SRS main h..ness:1. Disconnect the SRS main harness 3P connector from themain wire harness,2. Check resistance between the No. 1 terminal of the SRSmain harness 3P connector and ground. There shorrld be1 fu,|0 or more.
ls the resistance as specifisd?
Short to ground in the main wire harnoas; r€pair themain wire harness.