SMT644AA
2. Reinstall mainshaft rear bearing outer race without shims.
3. Clean mating surfaces of clutch housing and transmission
case with solvent.
4. Install mainshaft and mainshaft front bearing outer race into
transmission case. Turn mainshaft while holding bearing outer
race so that bearings are properly seated.
SMT078A
SMT079A
5. Put straightedge [width must be more than 50 mm (1.97 in)] on
transmission case, and measure the distance from upper sur-
face of straightedge to surface of the bearing outer race using
a depth micrometer.
+Measure at three places on bearing outer race, and take
the average.
6. Determine dimension A to be used by the following equation.
Dimension A = Width of straightedge þ measured dis-
tance
7. Measure the distance from mating surface of clutch housing to
portion with which mainshaft front bearing outer race is to be
mated.
+Measure at three places on the portion, and take the aver-
age.
Dimension B = Measured distance
8. Determine dimension C to be used by the following equation.
Dimension ªCº=BþA
9. Determine total thickness of shims with SDS table as a guide.
Mainshaft bearing adjusting shim:
Refer to SDS, MT-135.
10. Install selected mainshaft bearing adjusting shim and main-
shaft bearing outer race.
11. Check total turning torque after assembly Ð Refer to
ªASSEMBLYº, MT-115.
ADJUSTMENTRS5F50A
Mainshaft Bearing Preload (Cont'd)
MT-113
SMT667C
12. Install check ball and reverse lever spring on reverse lever
assembly.
+Apply multi-purpose grease to check ball.
+Pay attention to direction of reverse lever spring.
SMT668C
13. Install reverse lever assembly on clutch housing.
SMT669C
14. Install reverse arm shaft and retaining pin.
SMT670C
15. Hook reverse lock spring and reverse lever spring on reverse
lever assembly.
SMT671C
16. Mesh 4th gear, then install reverse idler gear and shaft.
+Pay attention to direction of tapped hole.
ASSEMBLYRS5F50A
MT-116
SMT070A
17. Place magnet on clutch housing.
SMT446C
18. If bearing preload of mainshaft was adjusted, install selected
shim(s) into transmission case.
+To aid in installation of transmission case, place shift
selector in the 1st and 2nd shift bracket or between 1st
and 2nd bracket and 3rd and 4th bracket.
19. Apply sealant to mating surface of transmission case and
install it. Refer to ªCase Componentsº, MT-92.
20. Install PNP switch.
SMT626D
21. Apply sealant to threads of check plugs. Install balls, springs
and plugs. Refer to ªShift Control Componentsº, MT-94.
22. After assembly, check that you can shift into each gear
smoothly.
SAT478EA
23. Measure total turning torque.
Total turning torque (New bearing):
8.8 - 21.6 N´m (90 - 220 kg-cm, 78 - 191 in-lb)
+When old bearing is used again, preload will be slightly
less than the above. Make sure torque is close to the
specified range.
ASSEMBLYRS5F50A
MT-117
VHCL SPEED SEN.MTR VEHICLE............................129
Description ...............................................................129
Wiring Diagram - AT - VSSMTR ..............................130
Diagnostic Procedure ..............................................131
THROTTLE POSITION................................................132
Description ...............................................................132
Wiring Diagram - AT - TPS ......................................134
Diagnostic Procedure ..............................................135
Component Inspection .............................................139
SHIFT SOLENOID VALVE A......................................140
Description ...............................................................140
Wiring Diagram - AT - SSV/A ..................................142
Diagnostic Procedure ..............................................143
Component Inspection .............................................145
SHIFT SOLENOID VALVE B......................................146
Description ...............................................................146
Wiring Diagram - AT - SSV/B ..................................148
Diagnostic Procedure ..............................................149
Component Inspection .............................................151
OVERRUN CLUTCH SOLENOID................................152
Description ...............................................................152
Wiring Diagram - AT - OVRCSV..............................153
Diagnostic Procedure ..............................................154
Component Inspection .............................................156
TORQUE CONVERTER CLUTCH...............................157
Description ...............................................................157
Wiring Diagram - AT - TCV......................................159
Diagnostic Procedure ..............................................160
Component Inspection .............................................162
BATT/FLUID TEMP SEN (A/T FLUID TEMP
SENSOR CIRCUIT AND TCM POWER SOURCE)....163
Description ...............................................................163
Wiring Diagram - AT - BA/FTS ................................165
Diagnostic Procedure ..............................................166
Component Inspection .............................................169
ENGINE SPEED SIGNAL............................................170
Description ...............................................................170
Wiring Diagram - AT - ENGSS ................................171
Diagnostic Procedure ..............................................172
LINE PRESSURE SOLENOID....................................174
Description ...............................................................174
Wiring Diagram - AT - LPSV....................................176
Diagnostic Procedure ..............................................177
Component Inspection .............................................180
EURO-OBD
DTC P0705 PARK/NEUTRAL POSITION (PNP)
SWITCH.......................................................................181
Description ...............................................................181
Wiring Diagram - AT - PNP/SW...............................183
Diagnostic Procedure ..............................................184
Component Inspection .............................................186DTC P0710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT.......................................................................187
Description ...............................................................187
Wiring Diagram - AT - FTS ......................................189
Diagnostic Procedure ..............................................190
Component Inspection .............................................192
DTC P0720 VEHICLE SPEED SENSOR.A/T..............193
Description ...............................................................193
Wiring Diagram - AT - VSSA/T ................................195
Diagnostic Procedure ..............................................196
DTC P0725 ENGINE SPEED SIGNAL.......................198
Description ...............................................................198
Wiring Diagram - AT - ENGSS ................................199
Diagnostic Procedure ..............................................200
DTC P0731 A/T 1ST GEAR FUNCTION....................202
Description ...............................................................202
Wiring Diagram - AT - 1ST ......................................205
Diagnostic Procedure ..............................................206
Component Inspection .............................................207
DTC P0732 A/T 2ND GEAR FUNCTION....................209
Description ...............................................................209
Wiring Diagram - AT - 2ND......................................212
Diagnostic Procedure ..............................................213
Component Inspection .............................................214
DTC P0733 A/T 3RD GEAR FUNCTION....................215
Description ...............................................................215
Wiring Diagram - AT - 3RD......................................218
Diagnostic Procedure ..............................................219
Component Inspection .............................................220
DTC P0734 A/T 4TH GEAR FUNCTION....................221
Description ...............................................................221
Wiring Diagram - AT - 4TH ......................................225
Diagnostic Procedure ..............................................226
Component Inspection .............................................230
DTC P0740 TORQUE CONVERTER CLUTCH..........231
Description ...............................................................231
Wiring Diagram - AT - TCV......................................233
Diagnostic Procedure ..............................................234
Component Inspection .............................................236
DTC P0745 LINE PRESSURE SOLENOID VALVE...237
Description ...............................................................237
Wiring Diagram - AT - LPSV....................................239
Diagnostic Procedure ..............................................240
Component Inspection .............................................243
DTC P0750 SHIFT SOLENOID VALVE A..................244
Description ...............................................................244
Wiring Diagram - AT - SSV/A ..................................246
Diagnostic Procedure ..............................................247
Component Inspection .............................................249
DTC P0755 SHIFT SOLENOID VALVE B..................250
Description ...............................................................250
Wiring Diagram - AT - SSV/B ..................................252
CONTENTS(Cont'd)
AT-2
Diagnostic Procedure ..............................................253
Component Inspection .............................................255
DTC P1705 THROTTLE POSITION SENSOR...........256
Description ...............................................................256
Wiring Diagram - AT - TPS ......................................259
Diagnostic Procedure ..............................................260
Component Inspection .............................................264
DTC P1760 OVERRUN CLUTCH SOLENOID
VALVE..........................................................................265
Description ...............................................................265
Wiring Diagram - AT - OVRCSV..............................267
Diagnostic Procedure ..............................................268
Component Inspection .............................................270
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP
SENSOR CIRCUIT AND TCM POWER SOURCE)....271
Description ...............................................................271
Wiring Diagram - AT - BA/FTS ................................273
Diagnostic Procedure ..............................................274
Component Inspection .............................................277
DTC VHCL SPEED SEN.MTR VEHICLE SPEED......278
Description ...............................................................278
Wiring Diagram - AT - VSSMTR ..............................280
Diagnostic Procedure ..............................................281
DTC CONTROL UNIT (RAM), CONTROL UNIT
(ROM)...........................................................................282
Description ...............................................................282
Diagnostic Procedure ..............................................282
DTC CONTROL UNIT (EEP ROM).............................284
Description ...............................................................284
Diagnostic Procedure ..............................................285
TROUBLE DIAGNOSES FOR SYMPTOMS...............286
Wiring Diagram - AT - NONDTC .............................286
1. O/D OFF Indicator Lamp Does Not Come On....288
2. Engine Cannot Be Started In²P²and²N²
Position ....................................................................291
3. In²P²Position, Vehicle Moves Forward Or
Backward When Pushed .........................................292
4. In²N²Position, Vehicle Moves ...........................293
5. Large Shock.²N²->²R²Position .......................295
6. Vehicle Does Not Creep Backward In²R²
Position ....................................................................297
7. Vehicle Does Not Creep Forward In²D²,²2²
Or²1²Position .........................................................300
8. Vehicle Cannot Be Started From D
1...................303
9. A/T Does Not Shift: D
1-> D2Or Does Not
Kickdown: D
4-> D2..................................................306
10. A/T Does Not Shift: D
2-> D3.............................309
11. A/T Does Not Shift: D
3-> D4.............................312
12. A/T Does Not Perform Lock-up .........................315
13. A/T Does Not Hold Lock-up Condition ..............31714. Lock-up Is Not Released ...................................319
15. Engine Speed Does Not Return To Idle (Light
Braking D
4-> D3).....................................................320
16. Vehicle Does Not Start From D
1.......................322
17. A/T Does Not Shift: D
4-> D3, When
Overdrive Control Switch²ON²->²OFF²...............323
18. A/T Does Not Shift: D
3-> 22, When Selector
Lever²D²->²2²Position.........................................324
19. A/T Does Not Shift: 2
2-> 11, When Selector
Lever²2²->²1²Position .........................................325
20. Vehicle Does Not Decelerate By Engine
Brake........................................................................326
21. TCM Self-diagnosis Does Not Activate (PNP,
Overdrive Control and Throttle Position Switches
Circuit Checks) ........................................................326
A/T SHIFT LOCK SYSTEM.........................................335
Description ...............................................................335
Shift Lock System Electrical Parts Location............335
Wiring Diagram - SHIFT -........................................336
Diagnostic Procedure ..............................................337
KEY INTERLOCK CABLE..........................................341
Components.............................................................341
Removal ...................................................................341
Installation ................................................................342
ON-VEHICLE SERVICE..............................................343
Control Valve Assembly and Accumulators .............343
Control Cable Adjustment ........................................344
Park/Neutral Position (PNP) Switch Adjustment .....344
Differential Side Oil Seal Replacement ...................345
Revolution Sensor Replacement .............................345
REMOVAL AND INSTALLATION...............................346
Removal ...................................................................346
Installation ................................................................347
OVERHAUL.................................................................349
Components-1 .........................................................349
Components-2 .........................................................350
Components-3 .........................................................351
Oil Channel ..............................................................352
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ............................353
DISASSEMBLY............................................................354
REPAIR FOR COMPONENT PARTS.........................368
Manual Shaft............................................................368
Oil Pump ..................................................................371
Control Valve Assembly ...........................................375
Control Valve Upper Body .......................................384
Control Valve Lower Body .......................................388
Reverse Clutch ........................................................390
High Clutch ..............................................................394
Forward Clutch and Overrun Clutch........................399
Low & Reverse Brake..............................................406
CONTENTS(Cont'd)
AT-3
Rear Internal Gear, Forward Clutch Hub and
Overrun Clutch Hub .................................................410
Output Shaft, Idler Gear, Reduction Pinion Gear
and Bearing Retainer...............................................414
Band Servo Piston Assembly ..................................419
Final Drive................................................................424
ASSEMBLY..................................................................428
Assembly (1) ............................................................428
Adjustment (1) .........................................................429
Assembly (2) ............................................................434
Adjustment (2) .........................................................438
Assembly (3) ............................................................442
Assembly (4) ............................................................444
SERVICE DATA AND SPECIFICATIONS (SDS).......449
General Specifications .............................................449
Shift Schedule..........................................................449
Stall Revolution ........................................................450
Line Pressure...........................................................450
Control Valves..........................................................450Clutch and Brakes ...................................................451
Clutch and Brake Return Springs............................452
Oil Pump ..................................................................453
Input Shaft ...............................................................453
Planetary Carrier......................................................453
Final Drive................................................................453
Reduction Pinion Gear ............................................455
Output Shaft.............................................................456
Bearing Retainer ......................................................457
Total End Play..........................................................457
Reverse Clutch End Play ........................................457
Accumulator .............................................................457
Band Servo ..............................................................458
Removal and Installation .........................................458
Shift Solenoid Valves ...............................................458
Resistance ...............................................................458
ATF Temp. Sensor ...................................................458
Revolution Sensor ...................................................458
Dropping Resistor ....................................................458
CONTENTS(Cont'd)
AT-4
parts. Apply petroleum jelly to protect O-rings and seals, or
hold bearings and washers in place during assembly. Do not
use grease.
+Extreme care should be taken to avoid damage to O-rings,
seals and gaskets when assembling.
+After overhaul, refill the transaxle with new ATF.
+When the A/T drain plug is removed, only some of the fluid is
drained. Old A/T fluid will remain in torque converter and ATF
cooling system.
Always follow the procedures under ªChanging A/T Fluidº in the
AT section when changing A/T fluid. Refer to ªChanging A/T
Fluidº, AT-15.
Service Notice or PrecautionsNJAT0247FAIL-SAFENJAT0247S01The TCM has an electronic Fail-Safe (limp home mode). This allows the vehicle to be driven even if a major
electrical input/output device circuit is damaged.
Under Fail-Safe, the vehicle always runs in third gear, even with a shift lever position of ª1º, ª2º or ªDº. The
customer may complain of sluggish or poor acceleration.
When the ignition key is turned ªONº following Fail-Safe operation, O/D OFF indicator lamp blinks for about
8 seconds. (For EXCEPT FOR EURO-OBD; ªSELF-DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-II)º,
refer to AT-42 and for EURO-OBD; ªTCM SELF-DIAGNOSTIC PROCEDURE (No Tools)º, refer to AT-61.)
Fail-Safe may occur without electrical circuit damage if the vehicle is driven under extreme conditions (such
as excessive wheel spin followed by sudden braking). To recover normal shift pattern, turn the ignition key
ªOFFº for 5 seconds, then ªONº.
The blinking of the O/D OFF indicator lamp for about 8 seconds will appear only once and be cleared. The
customer may resume normal driving conditions.
Always follow the ªWORK FLOWº [Refer to AT-71 (Except for Euro-OBD), AT-76 (EURO-OBD).]
The SELF-DIAGNOSIS results will be as follows:
The first SELF-DIAGNOSIS will indicate damage to the vehicle speed sensor or the revolution sensor.
During the next SELF-DIAGNOSIS, performed after checking the sensor, no damages will be indicated.
TORQUE CONVERTER SERVICENJAT0247S02The torque converter should be replaced under any of the following conditions:
+External leaks in the hub weld area.
+Converter hub is scored or damaged.
+Converter pilot is broken, damaged or fits poorly into crankshaft.
+Steel particles are found after flushing the cooler and cooler lines.
+Pump is damaged or steel particles are found in the converter.
+Vehicle has TCC shudder and/or no TCC apply. Replace only after all hydraulic and electrical diagnoses
have been made. (Converter clutch material may be glazed.)
+Converter is contaminated with engine coolant containing antifreeze.
+Internal failure of stator roller clutch.
+Heavy clutch debris due to overheating (blue converter).
+Steel particles or clutch lining material found in fluid filter or on magnet when no internal parts in unit are
worn or damaged Ð indicates that lining material came from converter.
The torque converter should not be replaced if:
PRECAUTIONS
Precautions (Cont'd)
AT-9
+The fluid has an odor, is discolored, and there is no evidence of metal or clutch facing particles.
+The threads in one or more of the converter bolt holes are damaged.
+Transaxle failure did not display evidence of damaged or worn internal parts, steel particles or clutch plate
lining material in unit and inside the fluid filter.
+Vehicle has been exposed to high mileage (only). The exception may be where the torque converter clutch
dampener plate lining has seen excess wear by vehicles operated in heavy and/or constant traffic, such
as taxi, delivery or police use.
EURO-OBD SELF-DIAGNOSIS Ð EURO-OBD ÐNJAT0247S04+A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the O/D OFF indicator or the malfunction indicator (MI). Refer to the table on AT-53
for the indicator used to display each self-diagnostic result.
+The self-diagnostic results indicated by the MI are automatically stored in both the ECM and TCM memo-
ries.
Always perform the procedure ªHOW TO ERASE DTCº on AT-50 to complete the repair and avoid
unnecessary blinking of the MI.
+The following self-diagnostic items can be detected using ECM self-diagnostic results mode* only when
the O/D OFF indicator lamp does not indicate any malfunctions.
þ PNP switch
þ A/T 1st, 2nd, 3rd, or 4th gear function
*: For details of EURO-OBD, refer to EC-57, ªON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONº.
+Certain systems and components, especially those related to EURO-OBD, may use a new style
slide-locking type harness connector.
For description and how to disconnect, refer to EL-5, ªHARNESS CONNECTORº.
Wiring Diagrams and Trouble DiagnosisNJAT0248When you read wiring diagrams, refer to the following:
+GI-12, ªHOW TO READ WIRING DIAGRAMSº
+EL-10, ªPOWER SUPPLY ROUTINGº
When you perform trouble diagnosis, refer to the following:
+GI-32, ªHOW TO FOLLOW TEST GROUP IN TROUBLE DIAGNOSISº
+GI-21, ªHOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENTº
PRECAUTIONS
Service Notice or Precautions (Cont'd)
AT-10