Page 1561 of 2189

Battery
Test
@l. Battery lluid lelectrolytel contalns sulfuric acid. lt may cause severe burns it it gets on your skin ol in your eyes Wear
protective clothing and a face shield.
- It eleqtlolyte gets on your skin or clothes, rinse it off with watel immediately
- lf electrolyte gets in your eyes, flush it out by splashing water in your eyes for at least 15 minutes; call a physician
immediately.
. A battery gives off hydrogen gas. lf ignited, the hydrogen will explode and could crack the battery case and splatter
acid on you. Keep sparks, flames, and Gigarettes away from the battery'
o Overchaiging will raise the temperature oI the electrolyte. This may force electrolyte to spray out ot ths battery vents'
Follow the charger manufacturel's instrustions, and chalge the battery at a propcr rate.
Use either a JCI or Bear ARBST tester. and follow the manufacturer's procedures. lf you don't have one of these comput-
erized testers, follow this conventional test procedure:
ToqetaccurateresuIts,thetemperatureoftheeIectro|ytemustbebetweenT0"F(21.c)and100"F(38.c}'
lf the case is cracked or the posts are loose, replace
the battery.
lf rhe indicator shows low electrolyte, add distilled
water if Possible.
EYE lndicates OK
Test Load CaPacitY (#l )
. Apply 300 amp load for 15 seconds to remove
surface charge.. Allow 15 seconds recovery Perloo.. Apply test load {see Test Load Chan).
. Record voltage at the end of l5 seconds.
Drops below 9.6 volts.Stays above 9.6 volts;
battery is OK.
(cont'd)
23-91
Page 1562 of 2189
Battery
Test (cont'd)
Charge on High Sefting (40 amps)
Charge until EYE shows charge is OK; plus anadditional 30 minutes to assure full charge.NOTE: lf the battery charge is very tow, it maybe necessary to bypass the charger,s polarityprotection circuitry.
lf the EYE does not show charge is OK withinthree hours, the battery is no-good; replace it.Write down how long the battery wascharged.
Test Load Capacity (#2)
Apply 300 amp load for 15 seconds to remove surface charoe.Allow 15 seconds recovery period.
Apply test load {see Test Load Chan).
Record voltage at the end of 15 seconos.
Stays above 9.6 volts; battery is OK. ,] Drops below 9.6 volts; baftery is no-good.
tu,
TEST LOAD CHART
Use the test load or 1/2 the cold cranking amps {CCA) printed on thelabel on the top of the banery. lf neither is indicated. use theinformation below:
BArrERy coLb@
coDE I AMps (ccAl | {amps)
405 (*410)200
*:558241 (S) - MF
23-92
Page 1563 of 2189
Starting System
Component Location Index
A/T GEAR POSITION SW|TCHTest, page 23'154Replacement, page 23-155
STARTER CUT RELAY (M/T}
Test, page 23-86, 87
oo
ool
CLUTCH INTERLOCK
swlTcH
BATTERYTest, page 23-91
STARTERTest, page 23'95Solenoid Test, Page 23 96
Replacement, Page 23-100
Performance Test, Page 23-101
23-93
Page 1564 of 2189
Starting System
Component Location lndex
GNIT ONSW TCH
t,U,-*€,-l
&T GEARPOSITION SWITCH(Cosed n posilion N or E)
ELKMHT
I
tl81X,4{HT BLKIWHT
STARTERCUT FELAY
STAPTER(Permaneit nragnel type)
N0 4l (80A) N0 42 (40A)
UNDEF.HOOO FUSEiFELAY BOX
-
__l
23-94
Page 1565 of 2189

-Starter Test
NOTE; The air temoerature must be between 59 and
100'F (15 and 38"C) before testing.
Recommended Procedure:
. Use a staner system tester.
. Connect and operate the equipment in accordance
with the manufacturer's instructions.
. Test and troubleshoot as described,
Alternate Procedurg:
. Use the following equipment:- Ammeter, 0 - 400 A
- Voltmeter, 0 - 20 V (accurate within 0.1 volt)
- Tachometer, 0 - 1,200 rpm
. Hook up a voltmeter and ammeter as shown.
NEGATIVETERMINAL
NOTE: After this test, or any subsequent repair. reset
the ECM/PCM to clear any codes (see section l1)
Check the Start€r Engagemont:
1. Remove the No. 44 (15 A) fuse from the under-hood
fuse/relay box,
2. Turn the ignition switch to START (llll with the shift
lever in E or E position (rVT) or with the clutch pedal
depressed {M/T). The starter should crank the engine.
. lf the starter does not crank the engine, go to
step 3.
. lf itcranksthe engineerraticallyortooslowly, go
to "Check for Wear and Damage" on the next
page.
Check the battery. battery positive cable, ground,
starter cut relay, and the wire connections for loose-
ness and corrosion, Test again.
lf the starter still does not crank the engine, go to
step 4,
Unplug the connector (BLK,/WHT wire and solenoid
terminal) from the starter,
Connect a jumper wire from the battery positive (+)
terminal to the solenoid terminal.
The starter should crank the engine.
. lf the starter still does not crank the engine,
remove it, and diagnose its internal problem
. lf the startercranksthe engine, goto step 6.
Check the ignition switch (see page 23-891.
Check the starter cut relay and clutch interlock switch
(see page 23-86,87).
Check the A/f gear position switch (see page 23-154).
Check for an open in the wire between the ignition
switch and starter.
7.
(cont'd)
23-95
9.
Page 1566 of 2189

Starting System
Starter Test lcont'dl
Ch€ck tor Wear and Damage
The starter should crank the engine smoothly and
steadily, lf the starter engages. but cranks the engine
erratically, remove it, and inspect the starter drive gear
and torque converter or flywheel ring gear for damage.
. Check the drive gear overrunning clutch for binding
or slipping when the armature is rotated with the
drive gear held,- lf damaged. replace the gears.
Check Cranking Voltsge and Curr€nt Draw
Cranking voltage should be no less than 8.5 volts.
Current draw should be no more than 350 amperes.
lf cranking voltage is too low, or current draw too high,
check for;
. dead or low batterv.
. open circuit in starter armature commutator seg-
ments,
. starter armature dragging.
. shorted armature winding.
o excessive drag in engine.
Check Cranking rpm
Engine speed during cranking should be above 100 rpm,
lf speed is too low, check for:
. loose battery or stanerterminals.
. excessively worn starter brushes,
. open circuit in commutator segments.
o dirty or damaged helical spline or drive gear.
. defective drive gear overrunning clutch.
Check Siarter Disengag€ment
With the shift lever in El or @ position (A/T) or with the
clutch pedal depressed (M/T), turn the ignition switch to
START (lll), and release to ON (ll).
The starter drive gear should disengage from the torque
converter or flywheel ring gear when you release the
Key.
lf the drive gear hangs up on the torque converter or fly-
wheel ring gear, check for:
. solenoid plunger and switch malfunction,
. dirty drive gear assembly or damaged overrunning
clutch.
Starter Solenoid Test
1. Check the hold-in coil for continuitv between the S
terminal and the armature housing (ground). The
coil is OK if there is continuitv,
ARMATUREHOUSING(GROUND)
S TERMINAL
M TERMINAL
B TERMINAL
STARTERCAELE B TERMINALMOUNTING NUTI N.m {0.9 kgf.m,7 tbf.ft)
Check the pull-in coil for continuity between the S
and M terminals. The coil is OK if there is continuity.
Page 1567 of 2189
JArmature Inspection and Test
1.Inspect the armature for wear or damage due to con-
tact with the permanent magnet or field winding.
. lf there is wear or damage. replace the armature.
Inspect for damage.
2. Check commutator surface and diameter.
. lf the surface is dirty or burnt. resurface with emery
cloth or a lathe within the following specifications,
or recondition with #500 or #600 sandpaper.
. lf commutator diameter is below the service limit,
replace the armature.
Commutator Diameter
Standard {NEW)Service Limit
28.0 - 28.1 mm
(1.102 - 1.106 in)
27.5 mm
(1.083 in)
VERNIER CALIPEB
3. Measure the commutator runout.
. lf the commutator runout is within the service
limit, check the commutator for carbon dust or
brass chips betlveen the segments.
. lf the commutator runout is not within the ser-
vice limit, replace the armature.
Commutator Runout
Standard (NEW)Service Limit
0 - 0.02 mm(0 - 0.0008 in)
u-u!r mm
(0.002 in)
COMMUTATOR
(cont'd)
23-97
Page 1568 of 2189
Starting System
Armature Inspection and Test (cont'dl
4. Check tor mica depth. lf necessary, undercut mica
with a hacksaw blade to achieve proper depth. l{ ser-
vice limit cannot be maintained, replace the armature.
MICA D€PTH
Commutator Mica D€pth
5. Check for continuity between the segments of the
commutator. lf an open circuit exists between any
segments, replace the armature.
NOT GOOD
Standard (NEW)Service Limit
0.4 - 0.5 mm
(0.016 - 0.02 in)
0.15 mm
(0.006 in)
23-98
corL coFECOMMUTATOR
6. Place the armature on an armature tester. Hold a
hacksaw blade on the armature core.
ARMATURE TESTER
. lf the blade is attracted to the core or vibrates
while the core is turned, the armature is shorted.
Replace the armature.
7. Check with an ohmmeter that no continuity exists
between the commutator and armature coil core,
and between the commutator and armature shaft. lf
there is continuity, replace the armature.
ARMATURE