AT-3
D
E
F
G
H
I
J
K
L
MA
B
AT
N
O
P N Wiring Diagram - AT - SSV/B ................................
140
Diagnosis Procedure .............................................141
Component Inspection ..........................................142
DTC P1760 OVERRUN CLUTCH SOLENOID
VALVE ..............................................................
144
Description ............................................................144
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
144
On Board Diagnosis Logic ....................................144
Possible Cause .....................................................144
DTC Confirmation Procedure ................................144
Wiring Diagram - AT - OVRCSV ...........................145
Diagnosis Procedure .............................................146
Component Inspection ..........................................147
DTC VEHICLE SPEED SENSOR MTR ............149
Description ............................................................149
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
149
On Board Diagnosis Logic ....................................149
Possible Cause .....................................................149
DTC Confirmation Procedure ................................149
Wiring Diagram - AT - VSSMTR ...........................150
Diagnosis Procedure .............................................151
DTC BATT/FLUID TEMP SEN (A/T FLUID
TEMP SENSOR CIRCUIT AND TCM POWER
SOURCE) .........................................................
152
Description ............................................................152
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
152
On Board Diagnosis Logic ....................................152
Possible Cause .....................................................152
DTC Confirmation Procedure ................................152
Wiring Diagram - AT - BA/FTS ..............................153
Diagnosis Procedure .............................................154
Component Inspection ..........................................156
DTC TURBINE REVOLUTION SENSOR .........158
Description ............................................................158
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
158
On Board Diagnosis Logic ....................................158
Possible Cause .....................................................158
DTC Confirmation Procedure ................................158
Wiring Diagram - AT - PT/SEN .............................159
Diagnosis Procedure .............................................160
CONTROL UNIT (RAM), CONTROL UNIT
(ROM) ...............................................................
163
Description ............................................................163
On Board Diagnosis Logic ....................................163
Possible Cause .....................................................163
DTC Confirmation Procedure ................................163
Diagnosis Procedure .............................................163
MAIN POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................
164
Wiring Diagram - AT - MAIN .................................164
Diagnosis Procedure .............................................165
PNP, OD SWITCH AND CLOSED THROT-
TLE, WIDE OPEN THROTTLE POSITION
SIGNAL CIRCUIT ............................................
167
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
167
TCM Terminal and Reference Value .....................167
Diagnosis Procedure .............................................167
Component Inspection ...........................................171
SHIFT POSITION INDICATOR CIRCUIT ........172
Description .............................................................172
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
172
Diagnosis Procedure .............................................172
TROUBLE DIAGNOSIS FOR SYMPTOMS ....173
Wiring Diagram - AT - NONDTC ...........................173
OD OFF Indicator Lamp Does Not Come On ........176
Engine Cannot Be Started in "P" and "N" Position ..178
In "P" Position, Vehicle Moves Forward or Back-
ward When Pushed ...............................................
179
In "N" Position, Vehicle Moves ..............................179
Large Shock "N" → "R" Position ............................180
Vehicle Does Not Creep Backward in "R" Position ..181
Vehicle Does Not Creep Forward in "D", "2" or "1"
Position ..................................................................
182
Vehicle Cannot Be Started from D1 .......................183
A/T Does Not Shift: D1→ D2or Does Not Kick-
down: D
4→ D2 .......................................................185
A/T Does Not Shift: D2→ D3 ..................................186
A/T Does Not Shift: D3→ D4 ..................................188
A/T Does Not Perform Lock-up .............................189
A/T Does Not Hold Lock-up Condition ...................190
Lock-up Is Not Released .......................................191
Engine Speed Does Not Return to Idle (Light
Braking D
4→ D3) ...................................................192
A/T Does Not Shift: D4→ D3, When OD OFF ........193
A/T Does Not Shift: D3→ 22, When Selector Lever
"D" → "2" Position .................................................
194
A/T Does Not Shift: 22→ 11, When Selector Lever
"2" → "1" Position ..................................................
195
Vehicle Does Not Decelerate by Engine Brake .....197
TCM Self-Diagnosis Does Not Activate .................200
TRANSMISSION CONTROL MODULE ..........202
Removal and Installation .......................................202
SHIFT CONTROL SYSTEM ............................203
Control Device Removal and Installation ...............203
Control Device Disassembly and Assembly ..........206
Selector Lever Knob Removal and Installation ......206
Adjustment of A/T Position ....................................207
Checking of A/T Position .......................................207
A/T SHIFT LOCK SYSTEM .............................209
Description .............................................................209
Shift Lock System Parts Location ..........................209
Wiring Diagram - AT - SHIFT ................................210
AT-4
Diagnosis Procedure .............................................210
KEY INTERLOCK CABLE ...............................213
Removal and Installation .......................................213
ON-VEHICLE SERVICE ..................................216
Control Valve Assembly and Accumulators ...........216
Park/Neutral Position (PNP) Switch ......................219
Revolution Sensor .................................................221
Turbine Revolution Sensor (Power Train Revolu-
tion Sensor) ...........................................................
222
Differential Side Oil Seal ........................................223
AIR BREATHER HOSE ...................................225
Removal and Installation .......................................225
TRANSAXLE ASSEMBLY ..............................226
Removal and Installation .......................................226
OVERHAUL .....................................................230
Component ............................................................230
Oil Channel ............................................................237
Location of Adjusting Shims, Needle Bearings and
Thrust Washers .....................................................
238
Location of Snap Rings .........................................239
DISASSEMBLY ...............................................240
Disassembly ..........................................................240
REPAIR FOR COMPONENT PARTS ..............257
Manual Shaft .........................................................257
Oil Pump ................................................................260
Control Valve Assembly ........................................263
Control Valve Upper Body .....................................272
Control Valve Lower Body .....................................276
Reverse Clutch ......................................................279
High Clutch ............................................................284
Forward and Overrun Clutches .............................288
Low & Reverse Brake ............................................295
Rear Internal Gear and Forward Clutch Hub .........299
Output Shaft, Output Gear, Idler Gear, Reduction
Pinion Gear and Bearing Retainer .........................
302
Band Servo Piston Assembly ................................307
Final Drive .............................................................313
ASSEMBLY ......................................................318
Assembly (1) .........................................................318
Adjustment (1) .......................................................319
Assembly (2) .........................................................325
Adjustment (2) .......................................................330
Assembly (3) .........................................................333
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
341
General Specification ............................................341
Vehicle Speed at Which Gear Shifting Occurs .....341
Vehicle Speed at When Lock-up Occurs/Releases
.
341
Stall Speed ............................................................341
Line Pressure ........................................................341
Adjusting shims, Needle Bearings, Thrust Wash-
ers and Snap Rings ..............................................
341
Control Valves .......................................................343
Accumulator ..........................................................343
Clutches and Brakes .............................................343
Final Drive .............................................................345
Planetary Carrier ...................................................345
Oil Pump ...............................................................345
Input Shaft .............................................................345
Reduction Pinion Gear ..........................................345
Band Servo ...........................................................345
Output Shaft ..........................................................346
Bearing Retainer ...................................................346
Total End Play .......................................................346
Reverse Clutch End Play ......................................346
Removal and Installation .......................................346
Shift Solenoid Valves ............................................346
Solenoid Valves ....................................................346
A/T Fluid Temperature Sensor ..............................347
Revolution Sensor .................................................347
Dropping Resistor .................................................347
Turbine Revolution Sensor (Power Train Revolu-
tion Sensor) ...........................................................
347
AT-8
< SERVICE INFORMATION >
PRECAUTIONS
• Be sure to turn the ignition switch OFF and disconnect battery negative cable from battery negative
terminal before any repair or inspection work. The open/short circuit of related switches, sensors,
solenoid valves, etc. will cause the MIL to light up.
• Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connectors are free from water, grease,
dirt, bent terminals, etc.)
• Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MIL to light up due to a short circuit.
• Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
PrecautionINFOID:0000000001703154
•Before connecting or disconnecting the TCM harness connec-
tor, turn ignition switch OFF and disconnect the battery cable
from the negative terminal. Failure to do so may damage the
TCM. Because battery voltage is applied to TCM even if igni-
tion switch is turned off.
•When connecting or disconnecting pin connectors into or
from TCM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on TCM pin
terminal, when connecting pin connectors.
•Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly or
not. (See page AT-71, "
TCM Terminal and Reference Value".)
•After performing each TROUBLE DIAGNOSIS, perform “DTC
(Diagnostic Trouble Code) Confirmation Procedure”.
The DTC should not be displayed in the “DTC Confirmation
Procedure” if the repair is completed.
• Before proceeding with disassembly, thoroughly clean the outside
of the transaxle. It is important to prevent the internal parts from
becoming contaminated by dirt or other foreign matter.
• Disassembly should be done in a clean work area.
• Use lint-free cloth or towels for wiping parts clean. Common shop
rags can leave fibers that could interfere with the operation of the A/T.
• Place disassembled parts in order for easier and proper assembly.
• All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
• Gaskets, seals and O-rings should be replaced any time the A/T is disassembled.
• It is very important to perform functional tests whenever they are indicated.
• The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent springs
and small parts from becoming scattered or lost.
• Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
SEF289H
AAT470A
MEF040DA
AT-180
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.DETECT MALFUNCTIONING ITEM
1. Disassemble A/T. Refer to AT-240, "
Disassembly" .
2. Check the following items:
- Forward clutch assembly. Refer to AT-288, "
Forward and Overrun Clutches" .
- Overrun clutch assembly. Refer to AT-288, "
Forward and Overrun Clutches" .
- Reverse clutch assembly. Refer to AT-279, "
Reverse Clutch" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5.CHECK SYMPTOM
Check again. Refer to AT-53, "
Check at Idle" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
6.CHECK TCM
1. Check TCM input/output signals. Refer to AT-71, "
TCM Terminal and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Large Shock "N" → "R" PositionINFOID:0000000001703339
SYMPTOM:
There is a large shock when changing from “N” to “R” position.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT-73, "
CONSULT-III Function (A/T)" or AT-78, "Diagnosis Procedure without
CONSULT-III" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT-73, "CONSULT-III Function (A/T)" or AT-78, "Diag-
nosis Procedure without CONSULT-III" .
NO >> GO TO 2.
2.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “D” position. Refer to AT-48, "
Inspections Before Trouble
Diagnosis" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
- Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter)
- Line pressure solenoid valve
- Oil pump assembly. Refer to AT-260, "
Oil Pump" .
OK or NG
OK >> GO TO 4.
TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-181
< SERVICE INFORMATION >
D
E
F
G
H
I
J
K
L
MA
B
AT
N
O
P
NG >> Repair or replace damaged parts.
4.CHECK SYMPTOM
Check again. Refer to AT-53, "
Check at Idle" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
5.CHECK TCM
1. Check TCM input/output signals. Refer to AT-71, "
TCM Terminal and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Vehicle Does Not Creep Backward in "R" PositionINFOID:0000000001703340
SYMPTOM:
Vehicle does not creep backward when selecting “R” position.
DIAGNOSTIC PROCEDURE
1.CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to MA-22, "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 2.
NG >> Refill ATF.
2.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “R” position. Refer to AT-48, "
Inspections Before Trouble
Diagnosis" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
- Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter)
- Line pressure solenoid valve
3. Disassemble A/T. Refer to AT-240, "
Disassembly" .
4. Check the following item:
- Oil pump assembly. Refer to AT-260, "
Oil Pump" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK STALL REVOLUTION
Check stall revolution with selector lever in “1” and “R” positions. Refer to AT-48, "
Inspections Before Trouble
Diagnosis" .
OK or NG
OK >> GO TO 6.
OK in “1” position, NG in “R” position>> GO TO 5.
NG in both “1” and “R” positions>> GO TO 7.
5.DETECT MALFUNCTIONING ITEM
1. Disassemble A/T. Refer to AT-240, "
Disassembly" .
AT-182
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
2. Check the following items:
- Low & reverse brake assembly. Refer to AT-295, "
Low & Reverse Brake" .
- Reverse clutch assembly. Refer to AT-279, "
Reverse Clutch" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-230, "
Component" .
2. Check A/T fluid condition. Refer to AT-48, "
Inspections Before Trouble Diagnosis" .
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7.DETECT MALFUNCTIONING ITEM
1. Disassemble A/T. Refer to AT-240, "
Disassembly" .
2. Check the following items:
- Reverse clutch assembly. Refer to AT-279, "
Reverse Clutch" .
- High clutch assembly. Refer to AT-284, "
High Clutch" .
- Low & reverse brake assembly. Refer to AT-295, "
Low & Reverse Brake" .
- Forward clutch assembly. Refer to AT-288, "
Forward and Overrun Clutches" .
- Overrun clutch assembly. Refer to AT-288, "
Forward and Overrun Clutches" .
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8.CHECK SYMPTOM
Check again. Refer to AT-53, "
Check at Idle" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 9.
9.CHECK TCM
1. Check TCM input/output signals. Refer to AT-71, "
TCM Terminal and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Vehicle Does Not Creep Forward in "D", "2" or "1" PositionINFOID:0000000001703341
SYMPTOM:
Vehicle does not creep forward when selecting “D”, “2” or “1” position.
DIAGNOSTIC PROCEDURE
1.CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to MA-22, "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 2.
NG >> Refill ATF.
2.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “D” position. Refer to AT-48, "
Inspections Before Trouble
Diagnosis" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-183
< SERVICE INFORMATION >
D
E
F
G
H
I
J
K
L
MA
B
AT
N
O
P
3.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
- Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter)
- Line pressure solenoid valve
3. Disassemble A/T. Refer to AT-240, "
Disassembly" .
4. Check the following item:
- Oil pump assembly. Refer to AT-260, "
Oil Pump" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK STALL REVOLUTION
Check stall revolution with selector lever in “D” position. Refer to AT-48, "
Inspections Before Trouble Diagno-
sis" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING ITEM
1. Disassemble A/T. Refer to AT-240, "
Disassembly" .
2. Check the following items:
- Oil pump assembly. Refer to AT-260, "
Oil Pump" .
- Forward clutch assembly. Refer to AT-288, "
Forward and Overrun Clutches" .
- Forward one-way clutch. Refer to AT-299, "
Rear Internal Gear and Forward Clutch Hub" .
- Low one-way clutch. Refer to AT-240, "
Disassembly" .
- Torque converter. Refer to AT-240, "
Disassembly" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
6.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-230, "
Component" .
2. Check A/T fluid condition. Refer to AT-48, "
Inspections Before Trouble Diagnosis" .
OK or NG
OK >> GO TO 7.
NG >> GO TO 5.
7.CHECK SYMPTOM
Check again. Refer to AT-53, "
Check at Idle" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 8.
8.CHECK TCM
1. Check TCM input/output signals. Refer to AT-71, "
TCM Terminal and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Vehicle Cannot Be Started from D1INFOID:0000000001703342
SYMPTOM:
Vehicle cannot be started from D1 on “Cruise Test — Part 1”.
AT-184
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
DIAGNOSTIC PROCEDURE
1.CHECK SYMPTOM
Check symptom. Refer to AT-53, "
Check at Idle" .
Is
“Vehicle Dose Not Creep Backward in “R” Position” OK?
OK >> GO TO 2.
NG >> Go to AT-181, "
Vehicle Does Not Creep Backward in "R" Position" .
2.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT-73, "
CONSULT-III Function (A/T)" or AT-78, "Diagnosis Procedure without
CONSULT-III" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT-73, "CONSULT-III Function (A/T)" or AT-78, "Diag-
nosis Procedure without CONSULT-III" .
NO >> GO TO 3.
3.CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-493
.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace accelerator pedal position sensor.
4.CHECK LINE PRESSURE
Check line pressure at stall point with selector lever in “D” position. Refer to AT-48, "
Inspections Before Trou-
ble Diagnosis" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
- Shift valve A
- Shift valve B
- Shift solenoid valve A
- Shift solenoid valve B
- Pilot valve
- Pilot filter
3. Disassemble A/T. Refer to AT-240, "
Disassembly" .
4. Check the following items:
- Forward clutch assembly. Refer to AT-288, "
Forward and Overrun Clutches" .
- Low one-way clutch. Refer to AT-240, "
Disassembly" .
- Forward one-way clutch. Refer to AT-299, "
Rear Internal Gear and Forward Clutch Hub" .
- High clutch assembly. Refer to AT-284, "
High Clutch" .
- Torque converter. Refer to AT-240, "
Disassembly" .
- Oil pump assembly. Refer to AT-260, "
Oil Pump" .
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
6.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-230, "
Component" .
2. Check A/T fluid condition. Refer to AT-48, "
Inspections Before Trouble Diagnosis" .
OK or NG
OK >> GO TO 7.
NG >> GO TO 5.
7.DETECT MALFUNCTIONING ITEM