1994 HONDA INTEGRA ac circuit

Circuit Diagram (A/T)
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IBI.K/BED
UI{DER -HOOD FUSE/NEUY BOX
N,0.41 {l00Al Io.39160 t

5. Check lor 8n op€n in the BLKMHT wire circuit be-
tween the staner and ignition switch, and con-
nectors.
6. Check the ignition switch (see page 23-70).
7, On cars with automatic transmission, check the A/Tgear position switch (neutral position switchl and
connector. On cars with manualtransmission, check
the staner cut relay, clutch interlock switch, and
connectors.
NOTE: Check the No. 39 (5O A) fuse in the under-hood
fuse/relay box for the starter cut relay.
Check tor Woar and Damago:
The starter should crank the engine smoothly and stead-
ily. lf th€ startsr engages, but cranks the engine errati-
cally, remove it. Inspect the starter, drive gear, and
flywheel ring gesr for damage.
a Check the drive gear overunning clutch for binding
or slipping when the armature is rotated with the drivegear held. Replace the gesrs if damaged.
Check Cranking Voltago 8nd Current Draw:
Cranking voltage should be no less than 8.O volts.
Current draw should be no more than 360 amperes.
lf cranking voltag€ is too low, or current draw too high,
check for:
a Fully charged battery
a Open circuit in starter armature commutatot segments
a Starter armature dragging
a Shoned armature winding
a Excessive drag in engine
Chack Cranking rpm:
Engine spsod during cranking should be above 1O0 rpm.
lf spe6d is too low, ch€ck for:
a Loose battsry or starter teminals
a Excessively worn starter brushes
a Open circuit in commutator segments
a Dirty or damaged helical spline or drive gear
a Defective drive gear overrunning clutch
Chock StErtor Disongagomoni:
Press the clutch pedal allth€ way in (M/T), turn the ioni-
tion switch to "lll" and rolease to "11".
The starter drive gear should disengage from the tlywheel
ring gear. When you rolease the key.
lf the drive gear hangs up on th€ flywheel ring gear, check
for:
a Solenoid plunger and switch malfunction
a Dirty drive gear assembly or damaged overrunning
clutch
23-77

Check for mica depth. It necessary, undercut micawith a hacksaw blade to achieve proper depth.
ITOT GOOO
MICA DEPTH
Commutator Mica D6pth
Stsndard {Nsw):0.5-0.8 mm (O.O2-0.03 in}Sslvice Limit: 0.2 mm (O.OO8 inl
Check tor continuity between the segments of thecommutator. lf an open circuit exists between anvsegments, replace the armatute.
M
ARMATURE TESTER
ARMATUFE
Place the armatute on an armature tester. Hold ahacksaw blade on the armature core,
HACKSAW BLADE
It the blade is attracted to the core or vibrstes whilethe core is turned, the armature is shorted. Reolacethe armature.
Check with an ohmmeter that no continuity existsbetween the commutator and armatute coilcore. andbetween the commutator and armature shaft. lf con_tinuity exists, replace the armature
COMMUTATOR
8.
SHAFT
23-83

lgnition System
Circuit Diagram
CKP: Cr6nk.halt posilioo sonsorCYP| Cylindor position s€nsor
TOC/CKP/CYP SENSOR
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ORN
U'+++
UNOER- HOOO FUSE/RELAY BOX
ECM
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YEUGNiI
tG tTtoN c0NTROl-MoDUr.r (cMl
/ H8s built - in \I OOrsO I
23-88

Circuit Diagram
UI,IDER - HOOD FUS€/REI.AY 8OX
*1 :USA+2 llo.24 ll SAl: 81881 .mintlo.24 {2041: 818C | .niin6
. NTEGRATEDCOMTNOL UMT. aBs coilTRor- uNn
VI
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ECM
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UNDER_OASHFUSE/REIAY 8OX
oiotG401
No.4t 11004) /a ilo.39l50Al
Fr€|'l) wNort'lc
AI.TERNATOR
23-99

Charging System
Alternator Replacement
NOTE: The original radio has a coded theft protection
circuit. Be sure to get the customer's code number before
- disconnecting the battery.- removing the No. 32 {7.5 A) fuse from the under-hood
fuse/relay box.- removing the radio.
After service, reconnect powet to the radio and turn it on.
When the word "CODE" is displayed, enler the cus-
tomer's 5-digit code to restore radio operation.
1 . Disconnect the ground cable from the battery nega-
tive (- ) terminal.
2. Disconnect the alternator connector from the al-
rernaror.
TERMINAL NUT
B TERMINAL
ALTERNATORCONNECTOR
Remove the terminal nut and the WHT wire from the
B terminal.
Loosen the adjusting nut. then remove the mount-
Ing nul.
MOUNTING NUT44 N.m (4.5 kgt.m, 33 lbf'ftl
5. Remove the alternator belt from the alternator pulley.
6. Remove the lower mounting bolt, then lift the alter-
nator upward.
23-104
ADJUSTING NUT
w
UPPER MOUNTII{GBRACKET BOLTSil4 N.m {4.5 kgl'm, 33 lbl'ft}
24 N.m 12.4 kgf'm,'t 7 tbf.ftl
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7. Remove the lower and upper mounting bracket bolts
and the mounting brackets.
BRACKETBRACKET BOLTS44 N.m (4.5 ksl.m, 33 lbt'ft1
8. Remove the adiusting nut and upper mounting bolt,
then lift out the alternator.
9. lnstall the altetnator in the reverse order of removal.
CAUTION: Adiust tho alternalor belt tension aftor
installation (seo Page 23-1O81.
NOTE: Reconnect the battery ground cable and turn
the radio on. When the word "CODE" is displayed,
enter the customer's 5-digit code.

ul{o€R - DAstlGIINONSWITCH FUSC/RELAYBOX
Circuit Diagram (Without A/Cl
UI{OER - HOOD FUS€/REI.AY BOX
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ECM
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Fan Controls
23-110
No.4l {lmA, No.39l50Al
FIIF.-

Gauge Assembly
Component Location Index
CAUTION:
a All SRS electrical wiring harnosses are cov€rod withyellow insulation.
a Bofore disconnecting any prn ot th€ SRS wire har-ness, connect tho short connector(sl.a R€place th6 entirs affGcted SRS halne$ assembly ifit has an open circuit o? damaged wiring.
SRS MAIN HARNESS{Cov.r6d with yollow inrularionl
GAUGE ASSEMBLYGauge Location Index, page 23-114Indicator Location Index, page 23-1 14Terminal Location Index, page 23-114Bulb Location. page 23-'l 15Disassembly. page 23-1 19Removal, page 23-118
FUEL GAUGE SENDING UNtTTest, page 23'124Repfacemenr, page 23-124
VEHICLE SPEEO SENSOB IVSS}Test, page 23-120fnput Test. page 23-120Repfacement, page 23-122
PARKITTG BRAKE SWITCHTest, page 23-127
BRAKE FLUID LEVEL SWITCHTesr, page 23-127
EI{GINE OIL PBESSURE SWITCHTest, page 23-122
ENGINE COOLANT TEMPERATURE IECTI GAUGESENOING UNITTest, page 23-126
(C61'ios tho SBS indicator signal)
23-113