Page 1183 of 1413

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
Page 1188 of 1413
Starting System
Armature Inspection and Test
1 . Inspect the armature for wear or damage due to con-
tact with the field coil magnets.
Inspect tor damage
A dirtv or burnt commutator surface may be l€sul-
faced with emery cloth or a lathe within the follow-
ing specilications.
Commutator Diamet€r
Stsndald (N6w): 29.9-3O.O mm (1.17-1.18Inl
Selvico Limit: 29 mm (1.14 lnl
VERNIEB CALIPER
23-82
3.
4.
Commutrtor Runout
Standard (Naw): 0-O.O2 mm (0-O.OO08 inl
Sowico Limit: 0.O5 mm (O.O02 inl
lf the commutator runout and diamete. are within
limits, check the commutator tor damage or for car-
bon dust or brass chips between the segments.
lf the surf6c6 is dirty, recondition it with # 50O or
# 600 sandpsper.
COMMUTATOR
Page 1190 of 1413
BRUSHES
Starting System
Starter Field Winding Test
1. Check for continuity between the brushes. lf there's
no continuity, replace the armature housing.
2. Check for continuity between each brush and the ar-
mature housing {ground) lf continuity exists, replace
the armatule housing.
Overrunning Clutch InsPection
Slide the overrunning clutch slong the shatt.
Does it move treely? ll not, replace it.
Rotate the overrunning clutch both ways.
Does it lock in one direction and rotate smoothly in
reverse? lf it does not lock in either direction or it
locks in both directions, replace it.
DRIVE G€AR
ll the starter drive gear is worn or damaged, replsce
the ovsrrunning clutch assembly; the gea. is not
available separately.
Check the condition of the flywheel or torque con-
verter ring gear if the starter drive gear teeth ale
damaged.
4.
23-8,4
CLUTCH GEAR
Page 1204 of 1413
Charging System
Component Location lndex
UI{DER.HOOD FUSE/BELAY BOX(USA: Has builr-in ELECTRICALLOAD DETECTOR {ELD) UNIT)Troubleshooting ot ELD, s€ction 11
BATTERYTost,
CHARGING SYSTEM LIGHTlln the gauge sssemblylT€st. pages 23-1OO. 101Bulb Locations, page 23-1 1 5
ALTERNATOR BELTInspoction and Adiustment, page 23-108
Alt6rnator/RegulatorTosl, pag€s 23-102, 1O3Replacament. page 23-'l 04Ovsrhaul, pago 23-105
23-98
Page 1208 of 1413

Charging System
Altornator/Regulator Test
NOTE; Mske sure the battery is sufficiently chargod (sa€
page 23-66).
NO
tropagezJ-ruJ,
O IOAD
VOLTTESTSELECTONswlTcH
II{DUCTIVE
FULL FIELDTESTEBLEAD (BLUILOAD ADJUSTERICARBON PILE)
FICK.I.|PIGR '
VOLTMETERt{EGATIVELEAD (8LK}
VOLTMETERPOStTtVELEAD IREDI
EGATIVE TESTER
CABLE (BLKI
INDUCTIVEPICK.UP
B TERMI]TALWIRE
23-102
Connoct tho Sun VAT4O {otooulvslont lgrt equipmonl) andtum tho s6l6ctor rwitch ro posi_
tion I |rtarting).
shift to neurralorlPland start theengino. Hold the ;;gine at 3oO0rpm wiih no load until the radia_
tor lan com€s on. then let it idle.
Raise the engine speed to 2OOOrom and hold il there.
ls lhe voltage over 15.1V?
Release the accelerator pedal andlet the engino idle.
Make sure all electrical systemsare turned otf. Turn the selectorswilch to position 2 (charging).
Remove the inductive pick-up and
zero the ammeter.
Place the inductive pick-uP overthe B terminalwire oI the altgrna-tor so that the arow Doints awaytrom the alternator.
Raise the engins speed lo 20OOrpm and hold it there.
T..t itr b.ttry (.- 9|e. 8€Al.ls the voltage less than 13.9V?
Page 1209 of 1413
(From page 23-1021
Apply a load wirh the VA'-4O un-til the battery voltage drops to be-tween 12- 13.5 V.
ls the amperage 60 A or more?
With the engine spe6d still at2OOO rpm, full-tield the altemalor.
Toat rnd rooalr d|e dtomEtor {soopsg.. 23-104 to 23-tO7).
Turn the ignition switch off; thenturn at on again.
Disconnocl lhe 4-P connectorIrom the altornator.
Check lor voltage between the lGterminal (BLK/YEL) and bodyground.
ls there battery vokage?Rop.ii open in tho BLK/YEL wiro.
NOTE; Attach a probe to the VAT-4O full field test lead and insert the orobeinto the full tield sccess hole at the back of the alternator. Switch the field selectorto the "A (Ground)" position momentarily and check amperage reading.
CAUTION: The voltago will ris6 quickly whon the slternator is full-fiolded. Donot allow th€ voltago to oxc66d 18 V 01 it may damage the elect.ical system
REGULATOR
{Locatodthe end cover)
FULL FIELDACCESS HOLE
L IWHT/BLUI
4-P CONNECTOR
IG IBLKATELI
wire side
23-103
Page 1250 of 1413
Integrated Control Unit
Circuit Diagram
D.3c ptlon
An integrat€d control unit, located in the left kick panel, integratss the functions of tho keyin/seat beh r6mind€r, sido
markar light {lasher, wiper/washer, lights-on r6minder, rear window dsfogger timer, brak€ system light bulb check, and
enging oil pressure indicator flasher circuitE,
NOTE: Difforent wires with the same color have be6n given a numbor suffix to distinguish them (for Example,
GRN/RED1 and GRN/RED' are not the same).
WNOSHIELD WIPER/WASHER SWITCH
IMT OFFiINT
I
II
IIIIIIIIIIII
YEUEE
rl
t
P
UNOER - DASH FUS€/RETAY BOX
r NTEGRATED COI{TROI UNIT
t-0wErGrilE 0|lPRESSI'REINDICATORLIGI{T
WINDSHIELOWIPERAVASHERswtTcH
tr-/
IBLK/GRN BI
WINDSHIELOWIPERMOTOR{Asl
VOLTAGEREGULATOR{ln ahamator,
UNOER- HOOD FUSE/RELAY 8OX
I
r3
r8relit;rBt5I
23-144
lr ) : With combinod washef-wip€r oporation
Page 1253 of 1413

1NUnder all conditionsCheck for continuity to ground:
There should be continuitv.
. Poor ground (G201, G4O1). An open in the wire
Under all conditionsCheck for voltage to ground:
There should be battery voltage.
. Blown No. 3 (7.5 A) fuse in the
under-dash fuse/relay box. An oDen in the wire
F
lgnition switch ON {ll)Check for voltage to ground:
There should be bsttery voltage
. Blown No. 15 (10 A) tuse in the
under-dash fuse/relay box. An open in the wire
All Systems:
No. TsrminalT€st condition
R€ar Window Detogger Timer System:
No. WireTost condition
Intermittent Wip6r Relay System:
Wir€/
No. TerminalTest condition
T6st: Desired rosult
Test: Dosiled result
T€Et: Desir6d result
Possibla cause it result is not obtained
Possible cause il rosult i8 not obtained
Possiblo cause if rosult is not obtained
(cont'd)
IYEL
Defogger switchpushedCheck lor continuity to ground:
There should be continuity asthe switch is Dushed.
Faulty defogger switch
Poor ground {G201, G4O1}
An open in the wire
BLUiYEL
lgnition switch ON (ll)Connect to ground: The rear
window defogger should work
and the detogger switch indica-
tor light should come on.
Blown No. 13 {7.5 Al fuse in the
under-dash fuse/relay box
Faulty defogger relay
Blown bulb
An open in the wire
,|YEL/BLU
lgnition switch ON (ll)
and windshield wipet
switch INT
Check tor voltage to ground:
There should be battery voltage
Bfown No. '14 l2O Al fuse in the
under-dash fuse/relay box
Faulty windshield wiper switch
An oDen in the wire
BLU/WHT
ano
BLUiGRN
Windshield wiper
switch OFF or INT
and wiper blades inpark position
Check for continuity between
the BLUMHT and BLU/GRN ter-minals: There should be
continuity.
Faulty windshield wiper switch
Faultv windshield wiDer motor
An open in the wire
.Elgnition switch ON (lllCheck for voltage to ground:
There should be battery voltage.
. An open in the wire
*BLK/GRNlgnition switch ON (ll)
and windshield washer
motor switch ON
Check for voltage to ground:
There should be battery voltage.
. Faulty windshield washer switch. An open in the wire
*: With combined washer-wiper operation
23-147