Engine ACURA INTEGRA 1998 Service Repair Manual

Gharging System
Troubleshooting
Ahcrn.tor Control Swtom T.rt (USA)
NOTE: Betore testing, check proper operation of the ELD by confirming with the MIL (s€e section 11).
CAUTION: Ba 3urc to ut! | vollmatalwith hr plu! tarmlnal connactad to bat-tary plua and ita mlnua talmlnal to lha4P connactor tarrninal No. 2.
ALTENNATORilP COiINECTOR
cIWHT/GBN}
ALTERNATOR.P CONI{ECTOB
Wire sido olt€m6le t€rminal6
ECM CONI{ECTOR A l:t2F)
BATTERY
Ch.ck tor . .hort In th. clrcuit(ALTC ltn.lr1. Disconnect the 4P connoctorIrom th6 altemator.2. Start tho engine, and turn thoh6adlights (high beam) ON.3. Moasur€ voltago botwoen th64P conn€ctor t6rminal No. 2and the positivo t€rminsl oltho batterv.
16 thor6 1 V or less?
Chrck for .n oD.n In th. wllrIALTC lln.):1. turn the headlight and igni-tion switch OFF.2. Disconnect th6 A (32P) con-noctor from the ECM.3. Ch6ck for continuity b6tw6entho ECM connoctor A (32P)
t€rminal No, 19 and alternator4P connoctor torminal No. 2.
Rrp.h op.n In th. wh. brlw..nth. rltarn oi.nd ECM.
Ch.ct for rhort in th. wire (ALTC
lin.l:'1. Turn the headlight and ignition switch OFF.2. Disconn€ct the A {32P} con-n6ctor from tho ECM.3. Check for conlinuity b€twoenths ECM connector A (32P)
terminal No. 19 8nd bodyground.
Slbrlltut. ! tnown-good ECM..nd rach.ck. It Drorcrlb.d volt-rgr ir now avalldla, raphce lhaorigin.l Ecilt.
Rap.ir 3hort in lha wira bstwaanth. .h.rnator ard ECI\|.
I23{5GtI|l0tl
72151aItIt136zla2a
a26n,/,V
Wir€ side offem6le t€rminals(l
ALTC(wl{T/GRNI
cIWHT/GBNI
Wire 3id€ offemal6 t€rminelg34
ECM CONNECTON A I32P}
t23a50t9t0tt
12t510l1Itt9mz2a2a
62621
ALTCIWHT/GRNI()
23-104
b-.

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Alternator/Regulator Test
NOTE: 8e sure the battery is sufficiently charged.
LOAO ADJUSTER
ICARBON PILE)
FULL FIELDTESTERT.EAD (8LU)
POSITIVE TESTERCABLE IREDI
NEGATIVETERMINAL
VOLTMETERNEGATIVELEAO {BL|(}
VOLTMEIERPOSmVELEAD IREDI
FIELOSELECTOR
TEST SELECTORswtTcHVOLTSELECTOR
INDUCTIVEPICK.UP
INDUCTIVEPICK.UPIGRNI
NEGANVE TESTERCABLE IBLKI
)
)
{cont'd)
23-105
Ahernator/Regulator Tosl-1 :1. Connect a Sun VAT-40 (or
equivalent testerl, and turnthe selector switch to position'1 (starting).
2. Shift to neutral position, andstart the engine. Hold theengine at 3,000 rpm with noload until the radiator tancomes on, thon let it idle.3. Raise the engine sp€ed to2,000 rpm, and hold it there.
ls the voltage over 15.1 V?
Altsrnator/Rogulator Test-z:1. Release the accelerator pedal,
and let the engine idle.2, Make sure all accessories areturnod off. Turn the selectorswitch to position 2 (charging).
3. Remove the inductive pick-up,
and zero the ammeter.4. Place the inductive pick-up
over the battery ground cableso that the arrow points
toward the batterY negativeterminal,5. Raise the engine speed to2.000 rpm, and hold it there.
ls the voltage less than 13.5 V?
Ahelnstor/Regulator T$t-3iApply a load with the VAT-40until the battery voltage drops tobetween 12 - 13.5 V.
To next page
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From previol.rs page
The charging swtem is OK.lsthe amperage 70 A or more?
Alternator/Regulator Test-4:With the engine speed still at2,000 rpm, Iull-Iield the alternator.
Charging System
Troubleshooting (cont'dl
CAUTION: Th6 voltago will rise quickly when the ahernator is ful!fieldcd. Do not .llowth6 voltag€ to €xc6ed 18 V; it may damage tho ol6drical system.
NOTE: Attach a probe to the VAT'40 full field test lead, and insert the probe into the lullfield access hole at the back of the alternator. Switch the field selector to the "A {Ground}"position momentarily, and check the amperage reading.
REGULATOB(Located inside
FULL FIELOACCESS HOLE
END COVEB
END COVER
FULL FIELDACCESS HOLE
L^
23-106

)
t
J
Altelnator ttelr Inspecuon ano Aol
Detlection Method:
Apply a force ol 98 N (1 0 ksl, 22 lbl) and measure the
deflection between the alternator and the crankshaft
DUllev,
Defloction: 9- 11 mm (O.35-O.43 inl
NOTE: On a brand-new belt (one that has been run
for less than five minutes), the deflection should be
81881, Bl8Cl engine: 6 - 8 mm (0.23 - 0.32 inl,
818C5 engine: 7 - I mm (0.28 - 0.35 in) when first
measured, lf the belt is worn or damaged, replace it.
ALTERNATOR ADJUSTING NUT
24 N.m 12,4 kgl.m, 17 lbI'ftl
MOUNTINGNUT44 N.m (4.5 kgf.m,33 tbf.ft)
CRANKSHAFT PULLEY ALTERNATOR BELT
lf adiustment is necessary:
1. Loosen the alternator adjusting nut and mounting
nut.
2.
3.
Move the alternator to obtain the proper belt tension,
then retighten the adiusting nut and mounting nut
to the specified torques.
Recheck the dellection of the belt.
NOTE: lI necessary, adjust the P/S pump belt (see
section 17) and A/C compressor belt (see section
221.
Belt Tension Gauge Method:
Following the gauge manulacturer's instructions, attach
the belt tension gauge to the belt and measure the
tension.
Tension: 340-490 N {35-50 kgf,77-11O lbf)
NOTE: On a brand-new belt (one that has been run
for less than five minutes), tension should be
818B1, 818C1 engine: 690 - 880 N (70 - 90 kgf, 154 -
198 lbf), 818C5 engine: 540 - 740 N (55 - 75 kgf,
121 - 165 lbf) when first measured. lf the belt is
worn or damaged, replace it.
lf adiustment is necessary:
1. Loosen the alternator adjusting nut and mounting
nut.
2.
3.
Move the alternator to obtain the proper belt tension,
then retighten the adjusting nut and mounting nut
to the specified torques.
Recheck the tension ot the belt.
NOTE: It necessary, adjust the P/S pump belt (see
section 17) and A/C compressor belt (see section
22t.
ALTERNATOR ADJUSTING NUT24 N.m 12.4 kgf'm, 17 lbt.ftJ
BELT TENSION GAUGEoTJGG -0010r0A
23-115
J
,-

)
Fan Motor Test
Disconnect the 2P connector from the fan motor.
Test the motor by connecting battery power to the
B terminal, and ground to the A termlnal.
lf the fan motor fails to run smoothly, replace it.
NOTE: The illustration shows the radiator fan.
Radiator Fan Switch Test
NOTE: Bleed air from the cooling system after installing
the radiator fan switch (see section 10)
1. Remove the radiator fan switch from the thermostat
housing.
2. Suspend the radiator fan switch in a container ol
coolanl as shown.
Heat the coolant and check engine coolant tempera
ture with a thermometer.
Check the continuity between the A and B terminals
according to the table:
23-119
Te rm Inal
Operatlon -------\
Tcmoerature ------
ON196. -203'F
(91" 95'C)
-5" 14.F i3" _8"C) ;*,*
than the temperature when
rt goes on.
SWITCH
OFF
B
-o
.-

Gauge Assembly
Component Location Index
VEHICLE SPEED SENSOR {VSSITest, page 23-128Input Test, page 23-128Replacement, page 23-130
GAUGE ASSEMBLYGauge Location Index, page 23-12:|fndicator Location Index. page 23-121Terminal Location Index, page 23-121Eulb Location, pag6 23-122Disassembly, page 23-127Removal, paqe 23-126
FUEL GAUGE SENDING UNITTest, page 23-132Replacement, page 23-132
PARKING BRAKE SWNCHTest, page 23-135
ARAKE FLUID LEVEL SWITCHTest, page 23,135
ENGINE OIL PRESSURE SWITCHTest, p6ge 23-130
ENGINE COOLANT TEMPERATUFE IECTI GAUGESENOING UNITTest, page 23-134
23-120

Gauge/lndicator/Terminal Location Index
coNNECTOR "8" (C5601
ltrii
rll
coNNECTOR "C" (Css8l
ACHOMETER:rdicates 10O rpm al
OO pulses per minutef the ignition controlrodule {lCM).
81 ------------ 816
ililllllilll
A,/T GEAR POS]TIONINDICATOR SYSTEMS€e page 23-140
c1 ------>cl0
I
Jilliltl
atespage 23-131t Test, page 23-132
^a1(
u;" u
7' /'- /n.u (,w.--
" oe)\r- -7 ttt'-1 r --
I 'l I z{.-a\y' | \-./^l
!t tr--',9I I l\-//11, I t,-\Jl
.r' to"-ei
I :rl
F<
elrle
ENGINE COOLANT TEMPERATUREGauge T€st, page 23-134Sending Unit Test, page 23'134
IECTI GAUGE:
A1 ----> A5
D1-------->D13
ililtl|illl
SPEEOOMETER:lndicates (60 mph at 1025 rpm) or
{60 km/h at 637 rpm) of the
vehicle speed sensor {VSS).
coNNECTOR "A" (C557)
coNNECTOR "D" (C5591
23-121

I
rIGauge Assembly
BulbLocations
RIGHT TURN SIGNAL INOICATOR LIGHT ('I.4 WI
BRAKE SYSTEM LIGHT I1.4 WI
DOOR-OPEN INDICATOR LIGHT (1.4 WI
*ABS/SRS INOICATOR LIGHT (1.' W)
LOW FUEL INDICATOR I-IGHT I3.4 W)
SEAT BELT REMINDER LIGHT {1.4 WI
HATCH-OPEN INDICATOR LIGHT {1.4 W}: HarchbackTRUNK'OPEN INDICATOR LIcHT (1.4 W): Sedan
+: On the ABS/SRS printed circuit board
LEFT TURN SIGNAL INDICATOR LIGHT (1.4 WI
CHARGING SYSTEM LIGHT {1,4 WI
A/T GEAR POSITION INDICATOR LIGHT (1.'t2 W x 7)
HIGH BEAM INDICATOR LIGHT I1 .4 \A,
LOW ENGINE OIL PRESSUREINDICATOR LIGHT (1.4 W}
MALFUNCTION INDICATOR LAMP(MtLl (1.4 Wl
LIGHTS13.4 W x 3)REMINDER LIGHT I1.4 WI
cRursE LTGHT | 1.4 Wt
23-122

J
BLKYEL
YEUBLU
A8SN0.53 (104) FUSE CONTROLlFrofi page 23A'123) UNIT
VV
II
tltlWHT/GFN BLU/REO
lonWHT€IU
I
I
I
\?
ALTERNATOR
lo'PNK
J
HAZAROWARNINGswtTcH
MENTENANCEREMINDERLIGHT0.4v,/i
lo'PNK
II
I
J
MAINTENANCEREMINDERUNIT
| 011
YEUREO
I
T
P"-:
)-
BLK
I:
G201G401
LOWENGINE OILPFESSUREINDICATORLIGHT0.4w)
23-125
)J

{
Disassembly
NOTE: Handle the terminals and Drinted circuit boards carelully to avoid damaging them.
FUEL GAUGEMOUNTING SCBEW {x 3l
e
o
SPEEDOMETER MOUNTING SCREW (x 4)ENGINE COOLANTTEMPERATURE {ECT)GAUGEMOUNTING SCREW {x 3}
t)ENGINE COOLANTTEMPERATURE IECTIGAUGE UNITTest, page 23-134TACHOMETEF UNITSpecification, page 23-121
SRS PRINTEDCIRCUIT BOARD
d'dP
METER HOUSTNG
FUEL GUAGE UNITTest, page 23 131
'
/*'
r@/ ror
6rH"
SPEEDO/ODO/TRIP METER UNTT' SPEEDOMETERSpecification, page 23-121Troubleshooting, Page 23_128. ODOMETERTroubleshooting, page 23-128. TRIP METERTroubleshooting, Page 23 128
TACHOMETER MOUNTING SCREW {x 3)
PRINTED CIRCUIT BOARD
It
23-127