1999 HONDA CIVIC 23-

lgnition System
Circuit Diagram :'98-00 models
UNDER HOOD FUSUFELAY BOX'x'E;;;;-;;;;l /; l-*;- Ecw.cM
ffiwFnBLK<-wHr\9-
Y
tlBTKTYEL YEUGRN
IGN]TIONswtTcHUNDER,DASHFUSE/BELAY BOX
YEt
J
BLK
J
FED
+
*1 :H TACHI*2 :TEC
9 *IBLU'
23-104

-lgnition Timing Inspection and Setting
1.Check the idle speed, and adjust it it necessary (see
section 'l '1 ).
Pull out the service check connector 2P (BRN and BLK
wires) from the connector holder located under the
dash on the front passenger side, then connect the
SCS service connector (T/N 07PAZ - 0010'100) to it.
Start the engine. Hold the engine at 3.000 rpm with
no load {A,/T in E or E. M/T in neutral) until the
radiator fan comes on, then let it idle.
Connect the timing light to the No. 1 ignition wire,
then point the light toward the pointer on the timing
belt cover.
Check the ignition timing in no load conditions:
headlights. blower fan, rear window defogger, and
air conditioner are not operating.
lgnhion Timing:
D15Y5. D16Y7, Dl6Yg engines
816A2 engine
MIT16" 12' BTDC (RED) during idling in
neutral
M/T12't 2" BTDC (RED) during idling in
neutral
l2'r 2" BTDC {RED) during idling in S
orE
POINTEB
RED MARK
23-105
ro ADVANCE -<;,
6. Adjust the ignition timing if necessary, as follows.
Loosen the distributor mounting bolts. and turn the
distributor ignition (Dl) housing counterclockwise to
advance the timing, or clockwise to retard the tim-
ing.
MOUNTING BOLTS18 N'm (1.8 kgfm, 13lblftl
Tighten the distributor mounting bolts, and recheck
the ignition timing.
Disconnect the SCS service connector from the ser-
vice check connector.
7.

lgnition System
Distributor Replacement
Removal:
1. Disconnect the connector from the distributor.
2. Disconnect the ignition wires from the distributor
ignition {Dl) cap.
3. Remove the mounting bolts from the distributor,
then remove the distributor from the cylinder head.
DISTRIBUTOR END CAMSHAFT END
MOUNTING BOLT18 N.m 11.8 kgtm, 13lbf.ltl
lnstallation:
NOTE: Before you install the distributor. bring the No. 1
piston to compression stroke TDC.
1. Coat a new O-ring with engine oil, then install it.
2. Slip the distributor into position
NOTE: The lug on the end of the distributor and its
mating grooves in the camshaft end are both offset
to eliminate the possibility of installing the distribu-
tor 180" out of time.
3. Installthe mounting bolts, and tighten them lightly.
23-106
4, Connect the ignition wires to the distributor ignition
(Dl) cap as shown.
rracfit'
No. 1CYLINDERMARK
No. 1CYLINDER
TEG:
5.
6.
7.
No. 2No. a
Connect the connector to the distributor.
Set the ignition timing (see previous page).
After setting the ignition timing, tighten the mount-
ing bolts.

el -Distributor Overhaul
HITACHI:
TOC/CKP/CYP
DISTRIBUTOR IGNITION {DI} HOUSINGCheck for cracks and damage.
Troubleshooting, section 1 1
Do not disassemble.
CAP SEALCheck for damage.
IGNITION CONTROL MODULE (ICMI
Input Test, page 23'109
IGNITION {DI) CAP
Check for cracks, wear,damage, and fouling.Clean or replace,
{cont'd)
23-107
Test, page 23_110

lgnition System
Distributor Overhaul (cont'dl
TEC:
IGNITION CONTROLMODULE IICM'Input Test, page 23-1
DISTRIBUTOR IGNITION {DI} HOUSINGCheck for cracks and damage.
COVER
DISTRIBUTOR IGNITION IDI) ROTOB
CAP SEALCheck for damage.DISTRIBUTOR IGNITION {DII CAPCheck for cracks, wear,damage, and fouling.Clean or replace,
IGNITION COILTest, page 23-110
O-RINGReplace
\
I
@
TDC/CKP/CYP S€NSORTroubleshooting, section 1 1Do not disassemble.
WHT/BLU
23-104

Jlgnition Control Module (lCMl Input Test
NOTE:
. See section 1'l when the malfunction indicator lamp
(MlL) turned on.
. Perform an input test for the ignition control module
(lCM) after finishing the fundamental tests for the
ignition system and the fuel and emissions systems
1. Remove the distributor ignition (Dl) cap, the distrib-
utor ignition (Dl) rotor and the leak cover (TEC).
2. Disconnect the wires from the lCM.
HITACHI:
BLK/YEL
TEC:
Turn the ignition switch ON (ll). Check for voltage
between the BLK/YEL wire and body ground.
There should be battery voltage.
. lf there is no battery voltage, check the BLK/YEL
wire between the under-dash fuse/relay box and
rhe lcM.
. lf there is battery voltage, go to step 4.
Turn the ignition switch ON (ll). Check for voltage
between the wire*r and body ground
There should be battery voltage.
. lfthere is no battery voltage, check:
- the ignition coil.
- the wire*1 between the ignition coil and the
tcM.
. lf there is battery voltage, go to step 5
*1: BLU'wire (HITACHI)
WHT/BLU wire (TEC)
Disconnect the EcM/PCM connector A (32P). Check
for continuity on the YEUGRN wire between the
ECM/PCM and the lCM.
There should be continuity.
Check for continuity on the YEUGRN wire to body
ground.
There should be no continuity.
Check for continuity on the BLUl wire between the
test tachometer connector and the ICM
There should be continuitY.
Check for continuity on the BLUl wire to body ground.
There should be no continuity.
lf all the tests are normal, replace the ICM
7.
23-109

lgnition System
lgnition Coil Test
Using an ohmmeter, measure resistance between the
terminals. lf the resistance is not within soecifications.
replace the ignition coil.
NOTE: Resistance will vary with the coil temperature;
specifications are at 68'F (20'C).
HITACHI:
Primary Winding Resistance
{Betwesn the A and B lerminalsl;
0.45 - 0.55 0
Secondary Winding Resistanc€
(Between the A and secondary winding terminals):
22.1 - 33.6 kA
TERMINAL B {-)
TERMINAL A
TEC:
Primary Winding Resistsnce
{Between the A and B terminalsl:
0.63 - 0.77 0
Secondary Winding Resistance
(Between the A and secondary winding terminals):
12.8 - 19.2 kO
SECONDARYWINDINGTERMINAL
TERMINAL A
23-110
TERMINAL B (-)
lgnition Wire lnspection and Test
CAUTION: Carelully remove the ignition wires bypulling on the rubber boots, Do not bend the wires; you
might break them inside.
'1. Check the condition of the ignition wire terminals. lf
any terminal is corroded, clean it, and if it is broken
or distorted, replace the ignition wire.
Check for broken,corroded, and bentlermrnals.IGNITION WIRE
Connect ohmmeter probes and measure resistance.
lgnition Wire Resistance:
25 k0 max. at 68"F (20"C)
IGNITION WIRE
3. lf resistance exceeds 25 kO, replace the ignition wire.

1. Inspect the electrodes and ceramic insulator for:
Spark Plug lnspection
Crackedinsulator
2.
[ . t.p,op", grp
| . Oil-fouling
i . Carbon deposits
| . Cracked center
I electrode insulator
Burned or worn electrodes may be causecl by:
. Advanced ignition timing
. Loose spark plug
. Plug heat range too low
. Insufficient cooling
Fouled plugs may be caused bY:
. Retarded ignition timang
. Oil in combustion chamber
. Incorrect spark plug gap
. Plug heat rangetoo high
. Excessive idling/low speed running
. Clogged air cleaner element
. Deteriorated ignition coil or ignition wares
D16Y5, D16Y7, D'16Y8 enginel
. Adjust the gap with a suitable gapping tool, and
replace the plug il the center electrode is round-
ed as shown below.
Electrode Gap:
1.1 mm
{o.{X:l in)ROUNDEDELECTRODE
Standard 1.1r8 ' mm (0.043i800oin)
Worn or detormed
1T
23-111
3. 816A2 engine:
. Do not adjust the gap of a platinum tip plug;
replace the spark plug il the center electrode is
rounded or it the gap is not within the specifica
tro ns.
Electlode Gap:
Standard 1.3181mm (0.051 !3oo" in)
flOUNDED ELECTROOE
',/
@_
:
Platinum tip
NOTE: Use only the spark plugs listed below
4. Apply a small quantity of anti seize compound to
the plug threads, and screw the plugs into the cylin
der head finger-tight. Then torque them to 18 N m
11.8 kgf.m, 13lbnft).
Engine TypesSpark Plugs
D16Y5ZFR4F 11 (NGK)
KJ14CR-111 (DENSOi
D16Y7,
D,I6Y8
ZFRSF-11 (NGK)
KJ16CR-111(DENSO)
81642PFR6L.13 (NGK)
PK2OPR.L13 (DENSO}