TM-1
TRANSMISSION & DRIVELINE
C
E
F
G
H
I
J
K
L
M
SECTION TM
A
B
TM
N
O
P
CONTENTS
TRANSAXLE & TRANSMISSION
TYPE 1 (4AT: RE4F03B)
BASIC INSPECTION ...................................
10
DIAGNOSIS AND REPAIR WORKFLOW .........10
Work Flow ...............................................................10
Diagnostic Work Sheet ............................................11
FUNCTION DIAGNOSIS ..............................13
A/T CONTROL SYSTEM ....................................13
Cross-Sectional View ..............................................13
Shift Mechanism ......................................................14
TCM Function ..........................................................21
CAN Communication ...............................................22
Input/Output Signal of TCM .....................................22
Line Pressure Control .............................................23
Shift Control ............................................................24
Lock-up Control .......................................................25
Engine Brake Control (Overrun Clutch Control) ......26
Control Valve ...........................................................28
Centrifugal Cancel Mechanism ...............................28
Component Parts Location ......................................30
A/T SHIFT LOCK SYSTEM ................................31
System Description .................................................31
Component Parts Location ......................................31
ON BOARD DIAGNOSTIC (OBD) SYSTEM ......32
Introduction .............................................................32
OBD Function for A/T System .................................32
One or Two Trip Detection Logic of OBD ................32
OBD Diagnostic Trouble Code (DTC) .....................32
Malfunction Indicator Lamp (MIL) ............................33
DIAGNOSIS SYSTEM (TCM) .............................35
CONSULT-III Function (TRANSMISSION) .............35
Diagnosis Procedure without CONSULT-III ............38
COMPONENT DIAGNOSIS .........................43
DTC U1000 CAN COMMUNICATION LINE .......43
Description ...............................................................43
On Board Diagnosis Logic .......................................43
Possible Cause ........................................................43
DTC Confirmation Procedure ..................................43
Diagnosis Procedure ...............................................43
DTC P0705 PARK/NEUTRAL POSITION
(PNP) SWITCH ..................................................
44
Description ...............................................................44
CONSULT-III Reference Value in Data Monitor
Mode ........................................................................
44
On Board Diagnosis Logic .......................................44
Possible Cause ........................................................44
DTC Confirmation Procedure ..................................44
Diagnosis Procedure ...............................................44
Component Inspection .............................................46
DTC P0710 A/T FLUID TEMPERATURE SEN-
SOR CIRCUIT ...................................................
48
Description ...............................................................48
CONSULT-III Reference Value in Data Monitor
Mode ........................................................................
48
On Board Diagnosis Logic .......................................48
Possible Cause ........................................................48
DTC Confirmation Procedure ..................................48
Diagnosis Procedure ...............................................48
Component Inspection .............................................50
DTC P0720 VEHICLE SPEED SENSOR·A/T
(REVOLUTION SENSOR) .................................
52
Description ...............................................................52
CONSULT-III Reference Value in Data Monitor
Mode ........................................................................
52
On Board Diagnosis Logic .......................................52
Possible Cause ........................................................52
DTC Confirmation Procedure ..................................52
Diagnosis Procedure ...............................................53
DTC P0725 ENGINE SPEED SIGNAL .............56
Description ...............................................................56
TM-3
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
DTC TURBINE REVOLUTION SENSOR .........104
Description ............................................................104
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
104
On Board Diagnosis Logic ....................................104
Possible Cause .....................................................104
DTC Confirmation Procedure ................................104
Diagnosis Procedure .............................................104
CONTROL UNIT (RAM), CONTROL UNIT
(ROM) ...............................................................
108
Description ............................................................108
On Board Diagnosis Logic ....................................108
Possible Cause .....................................................108
DTC Confirmation Procedure ................................108
Diagnosis Procedure .............................................108
MAIN POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................
109
Description ............................................................109
On Board Diagnosis Logic ....................................109
Possible Cause .....................................................109
DTC Confirmation Procedure ................................109
Diagnosis Procedure .............................................109
PNP, OD SWITCH AND CLOSED THROT-
TLE, WIDE OPEN THROTTLE POSITION
SIGNAL CIRCUIT .............................................
111
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
111
TCM Terminal and Reference Value .....................111
Diagnosis Procedure .............................................111
Component Inspection ..........................................115
A/T SHIFT LOCK SYSTEM ..............................116
Wiring Diagram - A/T Shift Lock System - .............116
Terminals And Reference Values .........................116
Diagnosis Procedure .............................................117
ECU DIAGNOSIS .......................................119
TCM ..................................................................119
Reference Value ...................................................119
Wiring Diagram - A/T CONTROL SYSTEM - ........123
Fail-Safe ................................................................123
DTC Inspection Priority Chart ...............................125
DTC Index .............................................................125
DTC Alphabetical Index ........................................126
SYMPTOM DIAGNOSIS ............................127
SYSTEM SYMPTOM ........................................127
Symptom Chart .....................................................127
OD OFF Indicator Lamp Does Not Come On .......138
Engine Cannot Be Started in "P" and "N" Position ..140
In "P" Position, Vehicle Moves Forward or Back-
ward When Pushed ...............................................
140
In "N" Position, Vehicle Moves ..............................141
Large Shock "N" → "R" Position ...........................142
Vehicle Does Not Creep Backward in "R" Position ..142
Vehicle Does Not Creep Forward in "D", "2" or "1"
Position ..................................................................
144
Vehicle Cannot Be Started from D1 .......................145
A/T Does Not Shift: D1→ D2or Does Not Kick-
down: D
4→ D2 .......................................................146
A/T Does Not Shift: D2→ D3 ..................................148
A/T Does Not Shift: D3→ D4 ..................................149
A/T Does Not Perform Lock-up .............................151
A/T Does Not Hold Lock-up Condition ...................151
Lock-up Is Not Released .......................................152
Engine Speed Does Not Return to Idle (Light
Braking D
4→ D3) ...................................................153
A/T Does Not Shift: D4→ D3, When OD OFF ........154
A/T Does Not Shift: D3→ 22, When Selector Lever
"D" → "2" Position .................................................
155
A/T Does Not Shift: 22→ 11, When Selector Lever
"2" → "1" Position ..................................................
156
Vehicle Does Not Decelerate by Engine Brake .....158
TCM Self-Diagnosis Does Not Activate .................161
PRECAUTION ............................................163
PRECAUTIONS ...............................................163
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................
163
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .................................
163
Precaution for On Board Diagnosis (OBD) System
of A/T and Engine (For Type1 Only) ......................
163
Precaution .............................................................164
Service Notice or Precaution .................................165
Wiring Diagram and Trouble Diagnosis .................165
PREPARATION .........................................166
PREPARATION ...............................................166
Special Service Tool ..............................................166
Commercial Service Tool ......................................169
ON-VEHICLE MAINTENANCE ..................171
A/T FLUID .......................................................171
Checking A/T Fluid ................................................171
Changing A/T Fluid ................................................171
A/T Fluid Cooler Cleaning .....................................172
STALL TEST ...................................................175
Inspection and Judgment ......................................175
LINE PRESSURE TEST ..................................178
Inspection and Judgment ......................................178
ROAD TEST ....................................................180
Description .............................................................180
Check Before Engine Is Started ............................180
Check at Idle ..........................................................181
Cruise Test - Part 1 ...............................................183
Cruise Test - Part 2 ...............................................185
Cruise Test - Part 3 ...............................................186
Vehicle Speed When Shifting Gears .....................188
TM-5
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P Cross-Sectional View ............................................
329
Shift Mechanism ....................................................330
TCM Function ........................................................337
CAN Communication .............................................338
Input/Output Signal of TCM ...................................338
Line Pressure Control ...........................................339
Shift Control ..........................................................340
Lock-up Control .....................................................341
Engine Brake Control (Overrun Clutch Control) ....342
Control Valve .........................................................344
Centrifugal Cancel Mechanism .............................344
Component Parts Location ....................................346
A/T SHIFT LOCK SYSTEM ..............................347
System Description ...............................................347
Component Parts Location ....................................347
DIAGNOSIS SYSTEM (TCM) ...........................348
CONSULT-III Function (TRANSMISSION) ...........348
Diagnosis Procedure without CONSULT-III ..........350
COMPONENT DIAGNOSIS .......................355
VEHICLE SPEED SENSOR - A/T (REVOLU-
TION SENSOR) ................................................
355
Description ............................................................355
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
355
On Board Diagnosis Logic ....................................355
Possible Cause .....................................................355
DTC Confirmation Procedure ................................355
Diagnosis Procedure .............................................356
VEHICLE SPEED SENSOR MTR ....................359
Description ............................................................359
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
359
On Board Diagnosis Logic ....................................359
Possible Cause .....................................................359
DTC Confirmation Procedure ................................359
Diagnosis Procedure .............................................359
SHIFT SOLENOID VALVE A ...........................361
Description ............................................................361
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
361
On Board Diagnosis Logic ....................................361
Possible Cause .....................................................361
DTC Confirmation Procedure ................................361
Diagnosis Procedure .............................................361
Component Inspection ..........................................363
SHIFT SOLENOID VALVE B ...........................365
Description ............................................................365
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
365
On Board Diagnosis Logic ....................................365
Possible Cause .....................................................365
DTC Confirmation Procedure ................................365
Diagnosis Procedure .............................................365
Component Inspection ...........................................367
OVERRUN CLUTCH SOLENOID VALVE ......369
Description .............................................................369
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
369
On Board Diagnosis Logic .....................................369
Possible Cause ......................................................369
DTC Confirmation Procedure ................................369
Diagnosis Procedure .............................................369
Component Inspection ...........................................371
TORQUE CONVERTER CLUTCH SOLENOID
VALVE .............................................................
373
Description .............................................................373
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
373
On Board Diagnosis Logic .....................................373
Possible Cause ......................................................373
DTC Confirmation Procedure ................................373
Diagnosis Procedure .............................................373
Component Inspection ...........................................375
BATT/FLUID TEMP SEN (A/T FLUID TEMP
SENSOR CIRCUIT AND TCM POWER
SOURCE) ........................................................
376
Description .............................................................376
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
376
On Board Diagnosis Logic .....................................376
Possible Cause ......................................................376
DTC Confirmation Procedure ................................376
Diagnosis Procedure .............................................376
Component Inspection ...........................................379
ENGINE SPEED SIGNAL ...............................381
Description .............................................................381
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
381
On Board Diagnosis Logic .....................................381
Possible Cause ......................................................381
DTC Confirmation Procedure ................................381
Diagnosis Procedure .............................................381
TURBINE REVOLUTION SENSOR ................383
Description .............................................................383
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
383
On Board Diagnosis Logic .....................................383
Possible Cause ......................................................383
DTC Confirmation Procedure ................................383
Diagnosis Procedure .............................................383
LINE PRESSURE SOLENOID VALVE ...........387
Description .............................................................387
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
387
On Board Diagnosis Logic .....................................387
Possible Cause ......................................................387
DTC Confirmation Procedure ................................387
TM-6
Diagnosis Procedure .............................................387
Component Inspection ...........................................390
CAN COMMUNICATION LINE ........................391
Description .............................................................391
On Board Diagnosis Logic .....................................391
Possible Cause ......................................................391
DTC Confirmation Procedure ................................391
Diagnosis Procedure .............................................391
MAIN POWER SUPPLY AND GROUND CIR-
CUIT .................................................................
392
Description .............................................................392
On Board Diagnosis Logic .....................................392
Possible Cause ......................................................392
DTC Confirmation Procedure ................................392
Diagnosis Procedure .............................................392
A/T 1ST GEAR FUNCTION .............................394
Description .............................................................394
On Board Diagnosis Logic .....................................394
Possible Cause ......................................................394
DTC Confirmation Procedure ................................394
Diagnosis Procedure .............................................395
A/T 2ND GEAR FUNCTION ............................397
Description .............................................................397
On Board Diagnosis Logic .....................................397
Possible Cause ......................................................397
DTC Confirmation Procedure ................................397
Diagnosis Procedure .............................................398
A/T 3RD GEAR FUNCTION ............................400
Description .............................................................400
On Board Diagnosis Logic .....................................400
Possible Cause ......................................................400
DTC Confirmation Procedure ................................400
Diagnosis Procedure .............................................401
A/T 4TH GEAR FUNCTION .............................403
Description .............................................................403
On Board Diagnosis Logic .....................................403
Possible Cause ......................................................403
DTC Confirmation Procedure ................................403
Diagnosis Procedure .............................................404
A/T TCC S/V FUNCTION (LOCK-UP) .............408
Description .............................................................408
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
408
On Board Diagnosis Logic .....................................408
Possible Cause ......................................................408
DTC Confirmation Procedure ................................408
Diagnosis Procedure .............................................409
CONTROL UNIT (RAM), CONTROL UNIT
(ROM) ...............................................................
413
Description .............................................................413
On Board Diagnosis Logic .....................................413
Possible Cause ......................................................413
DTC Confirmation Procedure ................................413
Diagnosis Procedure .............................................413
PNP, OD SWITCH AND CLOSED THROT-
TLE, WIDE OPEN THROTTLE POSITION
SIGNAL CIRCUIT .............................................
414
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
414
TCM Terminal and Reference Value ....................414
Diagnosis Procedure .............................................414
Component Inspection ..........................................418
A/T SHIFT LOCK SYSTEM ..............................419
Wiring Diagram - A/T Shift Lock System - ............419
Terminals And Reference Values .........................419
Diagnosis Procedure .............................................420
ECU DIAGNOSIS ......................................422
TCM ..................................................................422
Reference Value ...................................................422
Wiring Diagram - A/T CONTROL SYSTEM - ........426
Fail-Safe ................................................................426
Alphabetical Index .................................................428
SYMPTOM DIAGNOSIS ...........................429
SYSTEM SYMPTOM ........................................429
Symptom Chart .....................................................429
OD OFF Indicator Lamp Does Not Come On .......440
Engine Cannot Be Started in "P" and "N" Position .442
In "P" Position, Vehicle Moves Forward or Back-
ward When Pushed ...............................................
442
In "N" Position, Vehicle Moves ..............................443
Large Shock "N" → "R" Position ...........................444
Vehicle Does Not Creep Backward in "R" Position .444
Vehicle Does Not Creep Forward in "D", "2" or "1"
Position .................................................................
446
Vehicle Cannot Be Started from D1 ......................447
A/T Does Not Shift: D1→ D2or Does Not Kick-
down: D
4→ D2 ......................................................448
A/T Does Not Shift: D2→ D3 .................................450
A/T Does Not Shift: D3→ D4 .................................451
A/T Does Not Perform Lock-up .............................452
A/T Does Not Hold Lock-up Condition ..................453
Lock-up Is Not Released .......................................454
Engine Speed Does Not Return to Idle (Light
Braking D
4→ D3) ...................................................455
A/T Does Not Shift: D4→ D3, When OD OFF .......456
A/T Does Not Shift: D3→ 22, When Selector Lever
"D" → "2" Position .................................................
456
A/T Does Not Shift: 22→ 11, When Selector Lever
"2" → "1" Position ..................................................
458
Vehicle Does Not Decelerate by Engine Brake ....460
TCM Self-Diagnosis Does Not Activate ................463
PRECAUTION ...........................................465
PRECAUTIONS ................................................465
TM-7
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................
465
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .................................
465
Precaution for On Board Diagnosis (OBD) System
of A/T and Engine (For Type1 Only) .....................
465
Precaution .............................................................466
Service Notice or Precaution .................................467
Wiring Diagram and Trouble Diagnosis ................467
PREPARATION .........................................468
PREPARATION ................................................468
Special Service Tool .............................................468
Commercial Service Tool ......................................471
ON-VEHICLE MAINTENANCE ..................473
A/T FLUID .........................................................473
Checking A/T Fluid ................................................473
Changing A/T Fluid ...............................................473
A/T Fluid Cooler Cleaning .....................................474
STALL TEST ....................................................477
Inspection and Judgment ......................................477
LINE PRESSURE TEST ...................................480
Inspection and Judgment ......................................480
ROAD TEST .....................................................482
Description ............................................................482
Check Before Engine Is Started ............................482
Check at Idle .........................................................483
Cruise Test - Part 1 ...............................................485
Cruise Test - Part 2 ...............................................487
Cruise Test - Part 3 ...............................................488
Vehicle Speed When Shifting Gears .....................490
Vehicle Speed When Performing and Releasing
Complete Lock-up .................................................
490
ON-VEHICLE REPAIR ...............................491
TRANSMISSION CONTROL MODULE ...........491
Exploded View ......................................................491
Removal and Installation .......................................491
SHIFT CONTROL SYSTEM .............................493
Control Device Removal and Installation ..............493
Control Device Disassembly and Assembly ..........496
Selector Lever Knob Removal and Installation .....496
Adjustment of A/T Position ....................................497
Checking of A/T Position .......................................497
KEY INTERLOCK CABLE ...............................499
Removal and Installation .......................................499
AIR BREATHER HOSE ....................................502
Removal and Installation .......................................502
REMOVAL AND INSTALLATION .............503
TRANSAXLE ASSEMBLY ..............................503
Exploded View .......................................................503
Removal and Installation .......................................503
DISASSEMBLY AND ASSEMBLY ............506
OVERHAUL .....................................................506
Component ............................................................506
Oil Channel ............................................................512
Location of Adjusting Shims, Needle Bearings and
Thrust Washers .....................................................
513
Location of Snap Rings .........................................514
DISASSEMBLY ...............................................515
Disassembly ..........................................................515
REPAIR FOR COMPONENT PARTS .............530
Manual Shaft .........................................................530
Oil Pump ................................................................533
Control Valve Assembly ........................................536
Control Valve Upper Body .....................................545
Control Valve Lower Body .....................................548
Reverse Clutch ......................................................551
High Clutch ............................................................555
Forward and Overrun Clutches .............................560
Low & Reverse Brake ............................................566
Rear Internal Gear and Forward Clutch Hub .........571
Output Shaft, Output Gear, Idler Gear, Reduction
Pinion Gear and Bearing Retainer .........................
574
Band Servo Piston Assembly ................................580
Final Drive .............................................................585
ASSEMBLY .....................................................590
Assembly (1) ..........................................................590
Adjustment (1) .......................................................591
Assembly (2) ..........................................................596
Adjustment (2) .......................................................600
Assembly (3) ..........................................................604
SERVICE DATA AND SPECIFICATIONS
(SDS) ..........................................................
612
SERVICE DATA AND SPECIFICATIONS
(SDS) ...............................................................
612
General Specification ............................................612
Vehicle Speed at Which Gear Shifting Occurs ......612
Vehicle Speed at When Lock-up Occurs/Releases
..
612
Stall Speed ............................................................612
Line Pressure ........................................................612
Adjusting shims, Needle Bearings, Thrust Wash-
ers and Snap Rings ...............................................
613
Control Valves .......................................................614
Accumulator ...........................................................614
Clutches and Brakes .............................................614
Final Drive .............................................................616
Planetary Carrier ...................................................616
Oil Pump ................................................................616
Input Shaft .............................................................616
Reduction Pinion Gear ..........................................616
TM-10
< BASIC INSPECTION >[TYPE 1 (4AT: RE4F03B)]
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work FlowINFOID:0000000001728290
INTRODUCTION
The TCM receives a signal from the vehicle speed sensor, accelera-
tor pedal position sensor (throttle position sensor) or PNP switch.
Then provides shift control or lock-up control via A/T solenoid valves.
The TCM also communicates with the ECM by means of a signal
sent from sensing elements used with the OBD-related parts of the
A/T system for malfunction-diagnostic purposes. The TCM is capa-
ble of diagnosing malfunctioning parts while the ECM can store mal-
functions in its memory.
Input and output signals must always be correct and stable in the
operation of the A/T system. The A/T system must be in good oper-
ating condition and be free of valve seizure, solenoid valve malfunc-
tion, etc.
It is much more difficult to diagnose an error that occurs intermit-
tently rather than continuously. Most intermittent errors are caused
by poor electric connections or improper wiring. In this case, careful
checking of suspected circuits may help prevent the replacement of
good parts.
A visual check only may not find the cause of the errors. A road test
with CONSULT-III (or GST) or a circuit tester connected should be
performed. Follow the “DETAILED FLOW”.
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such errors, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “Diagnostic work sheet” as shown on
the example (Refer to TM-11
) should be used.
Start your diagnosis by looking for “conventional” errors first. This will
help troubleshoot driveability errors on an electronically controlled
engine vehicle.
Also check related Service bulletins.
DETAILED FLOW
1.COLLECT THE INFORMATION FROM THE CUSTOMER
Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurred) using diagnosis worksheet. Refer to TM-11, "
Diagnostic Work Sheet".
>> GO TO 2.
2.CHECK SYMPTOM 1
Check the following items based on the information obtained from the customer.
Fail-safe. Refer to TM-123, "
Fail-Safe".
A/T fluid inspection. Refer to TM-171, "
Checking A/T Fluid".
Stall test. Refer to TM-175, "
Inspection and Judgment".
Line pressure test. Refer to TM-178, "
Inspection and Judgment".
SAT631IB
SAT632I
SEF234G
TM-14
< FUNCTION DIAGNOSIS >[TYPE 1 (4AT: RE4F03B)]
A/T CONTROL SYSTEM
Shift Mechanism
INFOID:0000000001694421
CONSTRUCTION
FUNCTION OF CLUTCH AND BRAKE
CLUTCH AND BAND CHART
1. Torque converter 2. Oil pump 3. Input shaft
4. Brake band 5. Reverse clutch 6. High clutch
7. Front sun gear 8. Front pinion gear 9. Front internal gear
10. Front planetary carrier 11. Rear sun gear 12. Rear pinion gear
13. Rear internal gear 14. Rear planetary carrier 15. Forward clutch
16. Forward one-way clutch 17. Overrun clutch 18. Low one-way clutch
19. Low & reverse brake 20. Parking pawl 21. Parking gear
22. Output shaft 23. Idle gear 24. Output gear
SAT998I
Clutch and brake components Abbr. Function
5Reverse clutch R/C To transmit input power to front sun gear 7.
6High clutch H/C To transmit input power to front planetary carrier 10.
15Forward clutch F/C To connect front planetary carrier 10 with forward one-way clutch 16.
17Overrun clutch O/C To connect front planetary carrier 10 with rear internal gear 13.
4Brake band B/B To lock front sun gear 7.
16Forward one-way clutch F/O.CWhen forward clutch 15 is engaged, to stop rear internal gear 13 from rotating in
opposite direction against engine revolution.
18Low one-way clutch L/O.CTo stop front planetary carrier 10 from rotating in opposite direction against en-
gine revolution.
19Low & reverse brake L & R/B To lock front planetary carrier 10.
Shift posi-
tionR/C
5H/C
6F/C
15O/C
17Band servo
F/O.C
16L/O.C
18L&R/B
19Lock-
upRemarks
2nd
apply3rd re-
lease4th ap-
ply
PPA R K
POSITION
RREVERSE
POSITION
A/T CONTROL SYSTEM
TM-15
< FUNCTION DIAGNOSIS >[TYPE 1 (4AT: RE4F03B)]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
*1: Operates when OD OFF. (OD OFF indicator lamp is on.)
*2: Oil pressure is applied to both 2nd “apply” side and 3rd “release” side of band servo piston. However, brake band does not contract
because oil pressure area on the “release” side is greater than that on the “apply” side.
*3: Oil pressure is applied to 4th “apply” side on condition *2 above, and brake band contracts.
*4: A/T will not shift to 4th when OD OFF. (OD OFF indicator lamp is on.)
: Operates.
A: Operates when throttle opening is less than specification**, activating engine brake.
B: Operates during “progressive” acceleration.
C: Operates but does not affect power transmission.
D: Operates when throttle opening is less than specification**, but does not affect engine brake.
- **: Overrun clutch remains in engaged condition when throttle opening is less than 1/16.
POWER TRANSMISSION
“N” and “P” Positions
“N” position
Power from the input shaft is not transmitted to the output shaft because the clutches do not operate.
“P” position
NNEUTRAL
POSITION
D*41st *1D B B
2nd *1A BAutomatic
shift
3rd *1A *2C C B
*11 ⇔ 2 ⇔ 3
⇔ 4
4th C *3C C
21stBB
Automatic
shift
1 ⇔ 2 ⇐ 3 2ndB
3rd *2C C B
11stBB
Locks (held
stationary)
in 1st speed
1 ⇐ 2 ⇐ 3 2ndB
3rd *2C C B Shift posi-
tionR/C
5H/C
6F/C
15O/C
17Band servo
F/O.C
16L/O.C
18L&R/B
19Lock-
upRemarks
2nd
apply3rd re-
lease4th ap-
ply