Automatic Transmission
Special Tools . 14'2OescriptionGeneral Operation . .... 14 3Power Flow . . .. '14_6
Electronic Control System .. .. . . .. .14_15Hydraulic Control .. 14 24Hydraulic Flow....-....... .. . .... .. .. . 14_29Lock'up Syslem .. .'t4'39Electrical SystemComponenl Locdlrons 14 45
PCM Circuil Dragram (A/T Control Svstem)'97 Model ....................... . . .. - . ... .14-46'98Model ................. . ... .. .. .1450'99 00Models.... . .... . . . 1452
PCM Terminal Voltage/Measuring ConditionsA"/T Control System-'97Model ...... ..14'48A,/T Control System -'98 00 Models . . .. . . 14 54
Troubleshooting Procedures .. ..... ... - 14_56Svmotom to comoonent CharlEiectr,cal Syslem -'97 Model . . 14 60Electrical System -'98 - OO Models . .. . . 14_62Electrical Troubleshooting ('97 Model)Troubleshooting Flowaharts .... ..... . .. . . 14_64
Electrical Troubleshooting ('98 - 00 Models)Troubleshootinq Flowclt"n" .... . ....- . .14-93ElectricalTroublesliooting('99 00Models)Troubleshootino FlowchartO/D OFF Indicator Light Does Not Come On 14 131
O/D OFF Indicator Liaht On ConstantlY . . . .1!-132O/D OFF Indicator Light Does Not Come OnEven Though O/D Switch ls Pressed . .... - 14_133
Lock up Control Solenoid Valve A,/B AssemblyTest....................-......... . .14-135Replacement . .ll_135Shifr ControlSolenoid Valve Ay'B Assembl,Test .............................. . .. 14-136
Replacement..............- . .14'136Linear Solenoid AssemblYTest.............................................. .. .... . 14_137Replacement .. . 14138Marnshaftlcountershafl Speed SensorsReplacement ...-... 14_138A/T Gear Position SwitchTest ..........................-... . .. 14-139ReplacementA/T Gear Positionlndicator.................. 14-140
Valve Eodynepair ............................... ..... . . .. - . .. ... 14 192
Assembly .................... .. 1{_193
Valve CapsDesciiption....-........................ .. ...... 14194
tnspeition ................... .. 14' 195
N4ain Valve BodyDisassembly/lnspection/Reassemblv - ...... .. 14_196
Secondarv Valve BodYDisassemblv4nspectron/ReassemblY .. . 14 198
Reoulator Valve Bodvbisassembtv,lnspiction/Reassemblv . 14199
Servo EodvDisassembly/lnspection/Reassembly ... ....14'200
Lock'uo Valve BodYDis;ssembly/lnspection/Reassembly .... . 14_201
MainshaftDisassembly/lnspection/Reassembly .. .. .. ..14'202
Inspection ....-.............. ..11_203
Sealing RingsReilaceient ...... ..... . 14'204
CountershaftDisassembly/lnspection/Reassembly .. . . . . . 11-205
Disassembly/Reassemb|y . . ........ ...... . .. 14_206Inspedron ................ . .... . 14 207
One wav ClutchDisassembly/lnspection/ReassemblY ... 11_209
Sub-shaftDisassembly/lnspection/Reassembly ... . .. . 14-210
oisassembly/Re6ssembly . . ... .-...... . . ..14-211
Sub-shaft BearingsReplacement .......14'212
Clutchllfustrated Index .......... . . .14-213
Disassembly .... .. .....14-216Reassembfy .... . .. .. . 14'218
Differentialllfustrated Index " 14-222Backlash Inspection . .... . .14'223
Bearing Repiacement .. 11-223
Differe-ntial Carrier Replacement .. .. . . . .. ..11-2?4
OifSeal Replacement. . .. 14'225
Side Clearance lnspection . . - .. ... . - ...... . .. 11'226
Transmission Housing BearingsMainshaJVCountershaft EearingsRepfacement .......14221Sub'siralt Eearing Replacement . . . . . . . . . ..11'224
Toroue Converter Housing BearingsMainshattEearing/OilSe6lReplacement . .. l4229
Countershaft Bea;ing Replacement.. .... .. ..14-230
Input Test - '97 - 98 ModelsInput Test '99 - 00 Models
Symptom to-Component ChartHydraulic System ...............
Checking
Removal ...,lllustrated Index (4WD)
Interlock SystemInterlock ControlUnit lnputTest. -..... -.. .... . - 14 144* Key Interlock Solenoid Test .- .. . . . - . . . ..... 14_146* Shift Lock Solenoid Test ..............-.-. . .. . ... .... 14 147*Shift LockSolenoidReplacement...... .. . .. .. 14 148* park pin Switch Test ......... 14 119' Park Pin Switch Replacement- '97 - 98 Models ....... 14-150* Park Pin Swirch/Over Drive (O/Di SwitchReplacemenl '99-00Models . .. 14_151over-Drive (O/D) Switch {'99 00 [4odels]Test........_..................... .......14-152Hydr.ulic System
..............._............... t4 142.................................. 14-143
Control Lever AssemblyR6placement ......,.,Reverse ldler Gear
lllustrated lndex
.......... 14-230
14 231
11-231
1nsta1|ation ..................Park StopInspeclion/AdjustmenlTransfer AssemblY.......14.232
RoadTest.............-.... ........ .StallSpeedTest ....._........................ ....... 14-159Fluid Level......_................... 14'160
Disessembly .................... 14-235Transfer Drive Gear BearingReplacementTrans{er Driven Gesf Shaft BearingReplacementTransfer Housing Roller BearingReplacementTransfer Cov€r A Bearing Outer RaceReplacementTransfer Housing Bearing Outer RaceReplacement ......-..,,,,,.....ReassemblvTransmassaonBeassembly ... -.. .... .14 250
Torque Converier/Drive Plate . .-. .... .. . ... .....14_258
Transmissionlnstatlation .................. ....... 14'259
Cooler Flushing . . ......11-261ATF Cooler HosesConnection.................. ....... 14-266I Shift LeverRemoval/lnstallation . .. 14'261
Disassemblv/Reassemblv - '97 - 98 Models . . 14_264
Disassembli/Reassemblv -'99 - 00 Models . 14-269
Over'Orive (O/D) Switch WireClearanceAdjustment. - ... . . . .. .. . 14'270
Detent Spring Replscement . . -.. ... .14'271*Shift CableAdiustment ....... 14'272
Repfacement.............. . 11'273
14 15711-237
11-237
14-238
$-234
11-23914-240
Transmigrion
Inspeclron ....., ...........Transfer AssemblyRemova1,.,,,..............,lnstallalion ........... .. ...Transmission
14 164
14-16514,167
14-169
End Cover/Transmissio . 14'174Transmission Housing .... ... .. . . .... .. 14-176Torque Converter Housingly'alve Body.. - ... -. 14 178
lllustrated lndex (2WD)End Cover/Transmissio ....... 14 180Transmission Housing . . ... . .. .... ... 14'182Torque Convener Housing/r'alve Body ......- 14-184
End CovefRemovat ...................... ....... 14'186Transmission HousingRemoval ...................... .. 14_188Torque Convener HousingA/alve BodYRemovat ................-..... .-..... 14-190
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Troubleshooting Flowchart - A/T Gear Position Switch (Open)
Po$iblg Cause
. Dbconnected A/T gear position switch connoctor. Open in A/T gear po3ition switch wiro. Faulty A/T g€ar position switch
Wire side of female terminals
LGl {SRN/BLK)
{cont'd)
P,CM CONNECTORS
LGT(BNN/BLKI LG2IBRN/BLK)
A {32P)c l31P)
ATP NP (LT GRN}
. OBD ll Scan Tool indicatesCodo Pl706.. Self-diagnosis Fl or E indica-to. lighl blinks six times.
The system is OK.tthis time.Check for oth6r probl€ms suchas harne3s damage.
Are any ofthe gear position indicators not working when you
shift them?
Test the A/T gear position switch(see page 14-139).
Measure ATP R Vohago:1. Turn the ignition switch ON (ll).
2. Shitt to E position.
3. Measure ihe voltage betweenthe D6 and 820 ot 822 tetfiinals,
Repair open in tho wiro betwoenthe D6 terminal and the A/T gear
oosition switch.
Measure ATP NP Volt.g€:1. Shift to Elor E position.
2. Measure the voltage betweenthe D13 and 820 or 822 terminals,
Repair open in the wiro betweenth€ Dl3 terminal and th€ A/Tgesr posilion awitch.
To page 14-104
14-103
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The E or E indicator light is on
constantly (not blinkingl when-
ev€r lhe ignition switch is ON
0.
Me.3rtre D4IND o. D IND Vottage:
1. Turn the ignition switch OFF.
2. Disconnect the A (32P) con-
nector from the PCM.
3. Turn the ignition switch ON (ll)
4. Measure the voltage between
the A14 terminal and bodyground.
Repair short to power in the wire
b€iween th€ A14 terminal and
the gauge a$.mbly.
Measuro ATP D4 voltage:1. Turn the ignition switch OFF2. Connect the A (32P) connec-
tor to the PCM.
3. Turn the ignition switch ON (ll)
4. Shi{t to any position other
than E or E.5. Measure the voltage betweenthe D9 terminal and bodyground.
T6st the A/T g.ar Po3ition indi-
cator at the gauge e$embly con_
nectorc (se€ P.go 1,1-139 lor '98
model .nd 14-140 for '99 - 00
modelsl, f the A/f gear Poshionindicator is OK, replace the FCM.
ls there approx.5 V?
Test the A/T gear position switch(see page 14-139i.
Check for r 3hofi to ground in thewire betweon tho IXI teYminal andA/T gear position switch. lf wire is
OK subBtihrte a known-good PCM
and recheck.
Troubleshooting Flowchart - E or E Indicator Light On Gonstantly
PCM CONNECTORS
B (25P)
11 tr. //at tonl /1! /1/ /llt /
t',lxr uu?l Lrfr4
{GRN/BLKI
D lr6Pl
F't!4[r
Wire side of female terminals
c t3lPl_=---r-:=-t rl3l/ 5/, ?eV t r?V t
t/l,4lzulErt!t!!j!t!u3t ll]]lll1lglt]|b AE A.W6l ld$!'lLM.l1t I r.i
ATP D' (YEL) II
O)
I
A {32P)
D4 IND or D IND
c (3'tP)
A l32Pl
14-125,
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A/T Gear Position Switch
Test
1. Remove the A,/T gear position switch connsctor from the connector bracket, then disconnect the IVT gear position
switch connector (10P).
2. Check for continuity between the terminals in each switch position according to the table below.
A/T GEAR POSITIONSWITCH CONNECTOR(10P1
A/T Gear PGition Swhch Coniinuity Ch6ck'97 - 98 Models
Wire side oI female terminals
\_-__l"'ry1
Position
'l76o10
tro--o
tro------o
t!l!lo-----o
Eo_----o
Eo_-----o
Eo----o
Eo-----o
'99 - O0 Models
\______lg,-r4
Position1467.'l0
tro----o
trc\----o
Eo-----o
Eo--o
Eoo
Eo_----c
NOTE: Terminal No.3: Neutral oosition switch
14-139
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