2000 HONDA CIVIC Ignition

Precautions/Procedu res
Steering-related Precautions
Stesring Wheel and Cable Reol Alignment
NOTE: To avoid misalignment of the steering wheel on
reassembly, make sure the wheels are turned straight
ahead before removing the steering wheel.
Rotate the cable reel clockwise until it stops.
Then rotate it counterclockwise {approximately two and
a half turns) until the arrow mark on the cable reel label
points straight up.
24-12
:l
St€€rin9 Column Removal
CAUTION:
. Eefore removing thg stggring column. disconnect the
connsstor bqtween the cable r€el and th€ SRS msin
harness.
. lf the stoering column is going to be romoved with-
out dismounting th6 stoering wheel, lock the steer-
ing by turning the ignition key to o-LOCK position, or
remove the key trom the ignition switch so that the
steering wheel will not turn.
NOTE:
When the airbag and cable reel are disconnected,
don't reconnect the battery cable. lf 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.
For disconnecting the spring-loaded lock type con-
nector, refer to page 24-'10.
SRS MAIN HARNESS2P CONNECTOR
Do not replace the original steering wheel with any other
design because it will make it impossible to properly
install the airbag (only use genuine Honda replacement
parts).
After reassembly, 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 wheel.

rl
Troubleshooting
t)
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' I
tion in memory. For easier troubleshooting, this data can be retrieved via a data link circuit l
. When you turn the ignition switch ON (ll), the SRS indicator will come on. ll it goes off after six seconds. the system is
norma l.
. lf there is an 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-
tery is disconnected.
o when you connect the scs service connector to the service check connector (2P), and turn the ignition switch oN (ll),
thesRsindicator|ightwi||indicatethediagnostictroub|ecode(DTC)bythenumberofb|inks.
. After reading and recording the DTC. proceed with the troubleshooting for this code'
Precauiions
.Useon|yadigita|mU|timetertocheckthesystem'|fit,snotaHondamu|timeter,makesureitsoutputisl0mA(0.01A)
or|esswhenSwitchedtothesma||estva|ueintheohmmeterrange,AtesterwithahigheroUtpUtcoulddamagethe
airbag circuit or cause accidental airbag deployment and possible injury'
r when-ever the ignition switch is oN (ll). or has been turned oFF for lessthan three minutes, be careful nottobumpthe
SRS unit; the airbags could accidentally deploy and cause damage or injuries
. Before you ,"n1ou" th" SRS main harness, disconnect the driver's airbag connector (and the front passenger's airbag
connector).
. Make sure the battery is sufficiently charged {see section 23}. lf the battery is dead or low, measuring valLles 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 or the special tools'
For backprobing spring-loaded lock type connectors, refer to page 24-9'
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
indicatesnoDTc,DTcg-1orDTc9-2,doub|e-checkbyjumpingtheservicecheckconnectorandwatchingthesRS
indicator light (see next Page)
HONDA PGM TESTER
DATA LINK CONNECTOR Il6PI
l,
24-13

Troubleshooting
J
J
B. The SRS indicator light can also indicate the DTC by the number of blinks when the SCS service connector is connect-ed to the service check connector (2P).
1. Turn the ignition switch OFF, and wait for ten seconds. Then connect the SCS service connector to the service checkconnector (2P). lf you do not wait ten seconds, the SRS unit will not be completely reset and will not output DTCS.
SERVICE CHECKCONNECTOR {2PIIGRY, GRYI or IGRN, cRN]SCS SERVICE CONNECTOR07PAZ - (m10100
l.-zs
2. Turn the ignition switch ON (ll). The SRS indicator light comes on for about six seconds and goes off. Then it will indi,cate the DTC:- The DTC consists of a main code and a sub-code.- Including the most recent problem, up to three different malfunctions can be indicated.- In case of a continuous failure, the DTC will be indicated repeatedly (see example 1 below).- In case of an intermittent failure, the SRS indicator light will indicate the DTC one time, then it will stay on (see exam-ple 2 below).
lf both a continuous and an intermittent failure occur, both DTCS will be indicated as continuous failures.- In case the system is normal (no DTC), the SRS indicator light will stay on (see example 3).3. Read the DTC.
4. Turn the ignition switch OFF, and wait for ten seconds. Then disconnect the SCS service connector from the servicecheck connector (2P).
Examples of DTC Indications:
1. Continuous fallure, SRS Indicator Light isl
- Main @de
DTC21Mosr raenr probtsm
Intermittent failure, SRS lndicator Light is:
-lF- rM.in code ir) Sub.code (2)
DTCI2
-'l F --l FMarn code (11 Sub code t1t
DTCl1Thnd.most recenl
Lrghr srays on rn ca* ol
r --
2.
3. No
ON
sutb chek __.1penod
24-14
rmal (no failure), SRS
DTC5l
Indicator Light is:
rl
No OTC, system is norhal, rhe

)Erasing the DTC Memory
To erase the DTC(s) from the SRS unit, use a Honda
PGM Tester (see the Honda PGM Tester SRS vehicle
System Supplement) or the following procedure
1. Make sure the ignition switch is OFF
2. Connect the SCS service connector to the MES con-
nector (2P). Do not use a jumper wlre.
]P,
&
.!--J
MEMORY ERASE
SIGNAL (MESI CONNECTOR I2PI
IGRY, GRYI or [GRN, GRNI
SCS SERVICE CONNECTORo?PAZ - 0010100
t
7.
Turn the ignition switch ON (ll).
The SRS indicator light comes on for about six sec-
onds and goes off. Remove the SCS service connec-
tor from the MES connector (2P) within four seconds
after the SRS indicator light went off.
The SRS indicator light comes on again. Reconnect
the SCS service connector to the lvlES connector
(2P) within the four seconds after the SRS indicator
light comes on.
The SRS indicator light goes off. Remove the SCS
service connector from the MES connector (2P)
within four seconds.
The SRS indicator light indicates that the memory is
erased by blinking two times.
Turn the ignition switch OFF, and wait for ten sec-
onos.
8.
SRS indictlorlighi
MESconncclottcaminals
CONNECTED
O,
DISCONI{ECTED
24-15
Troubleshooting Intermittent
Failures
lf there was a malfunction, but it doesn't recur, it will be
stored in the memory as an intermittent failure, and the
SRS indicator light comes on.
Afte. checking the DTC, troubleshoot as lollows:
1. Read rhe DTC {see "Reading the DTC"}.
Erase the DTC memory (see "Erasing the DTC
Memory").
With the shifi lever in neutral, turn the ignition switch
ON (ll), and lei the engine idle.
The SRS indicator light comes on for about six sec-
onds and goes off.
l*F
ON
tl-- -l
Shake the wire harness and the connector, take a test
drive (quick acceleration, quick braking, cornering),
and turn the steering wheel fully left and right, and
hold it there for five lo ten seconds to find the cause
of the intermittent failure.
lf the problem recurs, the SRS indicator light will
stay on.
-q 6a.c f'-
:q
Problem recurs, light stays on
3.
4.
6.lf vou can't duplicate the intermittent failure, the sys-
tem is OK at this time.

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

Troubleshooting
The SRS Indicator Light Doesn't Come On (cont'dl
Frcm page 24.21
Ch6ck tho wire h6rn6s of tho SRS indicator light circuir (21:
1. Turn the ignition switch OFF.2. Disconnect the SRS main harness 3P connector from themain wire harness,3. Connect a voltmeter between the No. 1 terminal (+) ofthe SRS main harness 3P connector and ground.4. Turn the ignition switch ON (ll), and measur€ voltage.
13 thore 8.5 V or less for 3ir sacond3 aftgr tho ignitionswitch h.3 b.en turned ON llllT
YESNO
Short to power in tho BLU wi.e of lhe m.in wiro hrnroas;r€orir tho ham6as.
Chock the wi.e harness otthe SRS indicator ci.cuit l3l:1. Turn the ignition switch OFF.2. Disconnect the banery negative cable. th6n the positivecable, and wait three minutes.3. Disconnect the driver's (and front passenger's) airbag con-nector{s} (seo page 24-11).4. Disconnect the SRS main harness 18P connector trom
5. Connect a voltmeter betwo€n the No. 6lerminal {+} ofthe SRS main harness 18P connector and ground.6. Turn the ignition switch ON (ll), and measure vollagg. Thereshould be 0.5 V or less.
ls voltago as specified?
YESNO
Faultv SRS unh; roplic. the unit l!€e paqo 2+76).
Shoft to Dowar in tha BLU wire ot tho SRS mein h.rn.r3:reobce the hrlne3s,
24-2a
SRS MAIN HARNESS18P CONNECTOR
MAIN WIRE I{ARNESS3P CONNECTOR
SRS MAIN I{ARNESS3P CONNECTOR
c802
SRS UNIT
SRS MAIN HARNESS 1AP CONNECTOR
-

)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