AT-272
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — BASIC INSPECTION
5. CHECK LOCK-UP (D4 TO D4 L/U)
Check lock-up (D
4 to D4 L/U).
Specified speed when lock-up occurs. Refer to AT- 5 3 0 , "
VEHICLE SPEED WHEN PERFORMING LOCK-UP"
.
Read vehicle speed, throttle opening when lock-up duty
becomes 94%. Refer to AT- 2 4 4 , "
DATA MONITOR MODE (A/T)" .
Does A/T perform lock-up at the specified speed?
YES >> GO TO 6.
NO >>
Mark the box on the DIAGNOSTIC WORKSHEET.
GO TO AT- 3 11 , "A/T Does Not Perform Lock-Up" .
Continue “Road Test”.
6. CHECK HOLD LOCK-UP
Continue Road Test.
When lock-up duty becomes 94%. Refer to AT- 2 4 4 , "
DATA MONITOR MODE (A/T)" .
Does A/T hold lock-up condition for more than 30 seconds?
YES >> GO TO 7.
NO >>
Mark the box on the DIAGNOSTIC WORKSHEET.
GO TO AT- 3 1 2 , "A/T Does Not Hold Lock-Up Condition" .
Continue “Road Test”.
7. CHECK SHIFT DOWN (D4 L/U TO D4 )
Release accelerator pedal.
When lock-up duty becomes 4%. Refer to AT- 2 4 4 , "
DATA
MONITOR MODE (A/T)" .
Is lock-up released when accelerator pedal is released?
YES >> GO TO 8.
NO >>
Mark the box on the DIAGNOSTIC WORKSHEET.
GO TO AT- 3 1 4 , "Lock-Up Is Not Released" .
Continue “Road Test”.
8. CHECK SHIFT DOWN (D4 TO D3 )
Decelerate vehicle by applying foot brake lightly.
Read gear position and engine speed. Refer to AT- 2 4 4 ,
"DATA MONITOR MODE (A/T)" .
Does engine speed return to idle smoothly when A/T is shifted from
D4 to D3 ?
YES >> 1. Stop vehicle.
2. GO TO AT- 2 7 3 , "
Cruise Test — Part 2" .
NO >>
Mark the box on the DIAGNOSTIC WORKSHEET.
GO TO AT- 3 1 5 , "Engine Speed Does Not Return To
Idle (Light Braking D4 → D3 )" .
Continue “Road Test”.
SAT957I
SAT958I
SAT959I
TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-273
[EXC.F/EURO-OBD]
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Cruise Test — Part 2
1. CHECK STARTING GEAR (D1 ) POSITION
1. Confirm selector lever is in D.
2. Accelerate vehicle by half throttle again.
Read gear position. Refer to AT- 2 4 4 , "
DATA MONITOR MODE
(A/T)" .
Does vehicle start from D
1 ?
YES >> GO TO 2.
NO >>
Mark the box on the DIAGNOSTIC WORKSHEET.
GO TO AT- 3 1 7 , "Vehicle Does Not Start From D1" .
Continue “Road Test”.
2. CHECK SHIFT UP AND SHIFT DOWN (D3 TO D4 TO D2 )
1. Accelerate vehicle to 80 km/h (50 MPH) as shown in illustration.
2. Release accelerator pedal and then quickly depress it fully.
Read gear position and throttle position. Refer to AT- 2 4 4 ,
"DATA MONITOR MODE (A/T)" .
Does A/T shift from D
4 to D2 as soon as accelerator pedal is
depressed fully?
YES >> GO TO 3.
NO >>
Mark the box on the DIAGNOSTIC WORKSHEET.
GO TO AT- 3 0 4 , "A/T Does Not Shift: D1 → D2 Or
Does Not Kickdown: D4 → D2" .
Continue “Road Test”.
3. CHECK SHIFT UP (D2 TO D3 )
Check shift-up (D
2 to D3 )
Specified speed when shifting from D
2 to D3 . Refer to AT- 5 3 0 , "VEHICLE SPEED WHEN SHIFTING GEARS
AND THROTTLE POSITION" .
Read gear position, throttle opening and vehicle speed.
Refer to AT- 2 4 4 , "
DATA MONITOR MODE (A/T)" .
Does A/T shift from D
2 to D3 at the specified speed?
YES >> GO TO 4.
NO >>
Mark the box on the DIAGNOSTIC WORKSHEET.
GO TO AT- 3 0 7 , "A/T Does Not Shift: D2 → D3" .
Continue “Road Test”.
SAT495G
SAT404H
SAT960I
AT-274
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — BASIC INSPECTION
4. CHECK SHIFT UP (D3 TO D4 ) AND ENGINE BRAKE
Release accelerator pedal after shifting from D
2 to D3 .
Read gear position, throttle position and vehicle speed.
Refer to AT- 2 4 4 , "
DATA MONITOR MODE (A/T)" .
Does A/T shift from D
3 to D4 and does vehicle decelerate by engine
brake?
YES >> 1. Stop vehicle.
2. GO TO AT- 2 7 5 , "
Cruise Test — Part 3" .
NO >>
Mark the box on the DIAGNOSTIC WORKSHEET.
GO TO AT- 3 0 9 , "A/T Does Not Shift: D3 → D4" .
Continue “Road Test”.SAT405H
TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-275
[EXC.F/EURO-OBD]
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Cruise Test — Part 3
1. CHECK SHIFT DOWN (D4 TO D3 )
1. Confirm overdrive control switch is in ON.
2. Confirm selector lever is in D position.
3. Accelerate vehicle using half-throttle to D
4 .
4. Release accelerator pedal.
5. Set overdrive control switch to OFF while driving in D
4 .
Read gear position and vehicle speed. Refer to AT- 2 4 4 ,
"DATA MONITOR MODE (A/T)" .
Does A/T shift from D
4 to D3 (O/D OFF)?
YES >> GO TO 2.
NO >>
Mark the box on the DIAGNOSTIC WORKSHEET.
GO TO AT- 3 1 8 , "A/T Does Not Shift: D4 → D3 , When
Overdrive Control Switch “ON” → “OFF”" .
Continue “Road Test”.
2. CHECK ENGINE BRAKE
Check engine brake.
Does vehicle decelerate by engine brake?
YES >> GO TO 3.
NO >>
Mark the box on the DIAGNOSTIC WORKSHEET.
GO TO AT- 3 2 2 , "Vehicle Does Not Decelerate By
Engine Brake" .
Continue “Road Test”.
SAT812A
SAT813A
SAT776BA
SAT776BA
AT-276
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — BASIC INSPECTION
3. CHECK SHIFT DOWN (D3 TO 22 )
Move selector lever from D to 2 position while driving in D
3 (O/D OFF).
Read gear position. Refer to AT- 2 4 4 , "
DATA MONITOR MODE
(A/T)" .
Does A/T shift from D
3 (O/D OFF) to 22 ?
YES >> GO TO 4.
NO >>
Mark the box on the DIAGNOSTIC WORKSHEET.
GO TO AT- 3 1 9 , "A/T Does Not Shift: D3 → 22 , When
Selector Lever “D” → “2” Position" .
Continue “Road Test”.
4. CHECK ENGINE BRAKE
Check engine brake.
Does vehicle decelerate by engine brake?
YES >> GO TO 5.
NO >>
Mark the box on the DIAGNOSTIC WORKSHEET.
GO TO AT- 3 2 2 , "Vehicle Does Not Decelerate By
Engine Brake" .
Continue “Road Test”.
5. CHECK SHIFT DOWN
Move selector lever from 2 to 1 position while driving in 2
2 .
Read gear position. Refer to AT- 2 4 4 , "
DATA MONITOR MODE
(A/T)" .
Does A/T shift from 2
2 to 11 position?
YES >> GO TO 6.
NO >>
Mark the box on the DIAGNOSTIC WORKSHEET.
GO TO AT- 3 2 0 , "A/T Does Not Shift: 22 → 11 , When
Selector Lever “2” → “1” Position" .
Continue “Road Test”.
6. CHECK ENGINE BRAKE
Check engine brake.
Does vehicle decelerate by engine brake?
YES >> 1. Stop vehicle.
2. Perform self-diagnosis.
Except for Euro-OBD: Refer to AT- 2 4 6 , "
SELF-DIAG-
NOSTIC PROCEDURE (WITHOUT CONSULT-II)" ,
NO >>
Mark the box on the DIAGNOSTIC WORKSHEET.
GO TO AT- 3 2 2 , "Vehicle Does Not Decelerate By
Engine Brake" .
St op Roa d Te st .
SAT791GA
SAT791GA
SAT778B
SAT778B
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-277
[EXC.F/EURO-OBD]
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TROUBLE DIAGNOSIS — GENERAL DESCRIPTIONPFP:00000
Symptom ChartECS004VV
Numbers are arranged in order of inspection.
Perform inspections starting with number one and work up.
Symptom Condition Diagnostic Item Reference Page
Engine cannot start in “P” and “N”
positions.
AT- 2 9 3
ON vehicle1. Ignition switch and starterPG-2
,
SC-23
2. Control cable adjustmentAT- 4 0 9
3. PNP switchAT- 3 2 4
Engine starts in position other than
“N” and “P” positions.
AT- 2 9 3
ON vehicle1. Control cable adjustmentAT- 4 0 92. PNP switchAT- 3 2 4
Transaxle noise in “P” and “N” posi-
tions.ON vehicle1. Fluid levelAT- 2 5 6
2. Line pressure testAT- 2 6 0
3. Accelerator pedal position (APP) sensorAT- 3 4 5
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 3 2,
AT- 3 3 9
OFF vehicle5. Oil pumpAT- 4 4 36. Torque converterAT- 4 2 3
Vehicle moves when changing into “P”
position, or parking gear does not dis-
engage when shifted out of “P” posi-
tion.
AT- 2 9 4ON vehicle 1. Control cable adjustmentAT- 4 0 9
OFF vehicle 2. Parking componentsAT- 4 1 6,
AT- 4 4 0
Vehicle runs in “N” position.
AT- 2 9 5
ON vehicle 1. Control cable adjustmentAT- 4 0 9
OFF vehicle2. Forward clutchAT- 4 7 53. Reverse clutchAT- 4 6 4
4. Overrun clutchAT- 4 7 5
Vehicle will not run in “R” position (but
runs in “D”, “2” and “1” positions).
Clutch slips.
Very poor acceleration.
AT- 2 9 7
ON vehicle1. Control cable adjustmentAT- 4 0 9
2. Stall testAT- 2 5 7
3. Line pressure testAT- 2 6 0
4. Line pressure solenoid valveAT- 3 8 7
5. Control valve assemblyAT- 4 0 4
Vehicle will not run in “R” position (but
runs in “D”, “2” and “1” positions).
Clutch slips.
Very poor acceleration.
AT- 2 9 7
OFF vehicle6. Reverse clutchAT- 4 6 4
7. High clutchAT- 4 6 9
8. Forward clutchAT- 4 7 5
9. Overrun clutchAT- 4 7 5
10. Low & reverse brakeAT- 4 8 3
Vehicle braked when shifting into “R”
position.ON vehicle1. Fluid levelAT- 2 5 6
2. Line pressure testAT- 2 6 0
3. Line pressure solenoid valveAT- 3 8 7
4. Control valve assemblyAT- 4 0 4
OFF vehicle5. High clutchAT- 4 6 96. Brake bandAT- 4 9 7
7. Forward clutchAT- 4 7 5
8. Overrun clutchAT- 4 7 5
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-279
[EXC.F/EURO-OBD]
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No creep at all.
AT- 2 9 7
and AT-299
ON vehicle1. Fluid levelAT- 2 5 62. Line pressure testAT- 3 8 7
3. Control valve assemblyAT- 4 0 4
OFF vehicle4. Forward clutchAT- 4 7 55. Oil pumpAT- 4 4 3
6. Torque converterAT- 4 2 3
Failure to change gear from “D1 ” to
“D
2 ”.ON vehicle1. Control cable adjustmentAT- 4 0 9
2. Shift solenoid valve AAT- 3 5 0
3. Control valve assemblyAT- 4 0 4
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 3 2, AT-339
5. Accelerator pedal position (APP) sensorAT- 3 4 5
OFF vehicle 6. Brake bandAT- 4 9 7
Failure to change gear from “D2 ” to
“D
3 ”.ON vehicle1. Control cable adjustmentAT- 4 0 9
2. Shift solenoid valve BAT- 3 5 6
3. Control valve assemblyAT- 4 0 4
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 3 2, AT-339
5. Accelerator pedal position (APP) sensorAT- 3 4 5
OFF vehicle6. High clutchAT- 4 6 97. Brake bandAT- 4 9 7
Failure to change gear from “D3 ” to
“D
4 ”.ON vehicle1. PNP switchAT- 3 2 4
2. Overrun clutch solenoid valveAT- 3 6 2
3. Shift solenoid valve AAT- 3 5 0
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 3 2, AT-339
5. A/T fluid temp sen circ and TCM pow
sourAT- 3 7 4
OFF vehicle 6. Brake bandAT- 4 9 7
Too high a gear change point from “D1
” to “D
2 ”, from “D2 ” to “D3 ”, from “D3
” to “D
4 ”.
AT- 3 0 4
and AT-309
ON vehicle1. Accelerator pedal position (APP) sensorAT- 3 4 5
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 3 2, AT-339
3. Shift solenoid valve AAT- 3 5 0
4. Shift solenoid valve BAT- 3 5 6
Gear change directly from “D1 ” to “D3
” occurs.ON vehicle1. Fluid levelAT- 2 5 62. Accumulator servo releaseAT- 4 0 4
OFF vehicle 3. Brake bandAT- 4 9 7
Engine stops when shifting lever into
“R”, “D”, “2” and “1”.ON vehicle1. Engine idling rpmEC-558
2. Fluid levelAT- 2 5 6
3. Torque converter clutch solenoid valveAT- 3 6 8
4. Control valve assemblyAT- 4 0 4
OFF vehicle 5. Torque converterAT- 4 2 3
Symptom Condition Diagnostic Item Reference Page
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-281
[EXC.F/EURO-OBD]
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Vehicle braked by gear change from
“D
2 ” to “D3 ”.ON vehicle 1. Fluid levelAT- 2 5 6OFF vehicle 2. Brake bandAT- 4 9 7
Vehicle braked by gear change from
“D
3 ” to “D4 ”.ON vehicle 1. Fluid levelAT- 2 5 6OFF vehicle2. Overrun clutchAT- 3 6 23. Forward one-way clutchAT- 4 1 6
4. Reverse clutchAT- 4 6 4
Maximum speed not attained. Accel-
eration poor.ON vehicle1. Fluid levelAT- 2 5 6
2. PNP switchAT- 3 2 4
3. Overdrive control switchAT- 3 2 4
4. Accelerator pedal position (APP) sensorAT- 3 4 5
5. Shift solenoid valve AAT- 3 5 0
6. Shift solenoid valve BAT- 3 5 6
7. Control valve assemblyAT- 4 0 4
OFF vehicle8. Reverse clutchAT- 4 6 4
9. High clutchAT- 4 6 9
10. Brake bandAT- 4 9 7
11. Low & reverse brakeAT- 4 8 3
12. Oil pumpAT- 4 4 3
13. Torque converterAT- 4 2 3
Failure to change gear from “D4 ” to
“D
3 ”.ON vehicle1. Fluid levelAT- 2 5 6
2. Accelerator pedal position (APP) sensorAT- 3 4 5
3. Overrun clutch solenoid valveAT- 3 6 2
4. Shift solenoid valve AAT- 3 5 0
5. Line pressure solenoid valveAT- 3 8 7
6. Control valve assemblyAT- 4 0 4
OFF vehicle7. Brake bandAT- 4 9 78. Overrun clutchAT- 4 7 5
Failure to change gear from “D3 ” to
“D
2 ” or from “D4 ” to “D2 ”.ON vehicle1. Fluid levelAT- 2 5 6
2. Accelerator pedal position (APP) sensorAT- 3 4 5
3. Shift solenoid valve AAT- 3 5 0
4. Shift solenoid valve BAT- 3 5 6
5. Control valve assemblyAT- 4 0 4
OFF vehicle6. High clutchAT- 4 6 97. Brake bandAT- 4 9 7
Failure to change gear from “D2 ” to
“D
1 ” or from “D3 ” to “D1 ”.ON vehicle1. Fluid levelAT- 2 5 6
2. Accelerator pedal position (APP) sensorAT- 3 4 5
3. Shift solenoid valve AAT- 3 5 0
4. Shift solenoid valve BAT- 3 5 6
5. Control valve assemblyAT- 4 0 4
OFF vehicle6. Low one-way clutchAT- 4 1 6
,
AT- 4 2 3
7. High clutchAT- 4 6 9
8. Brake bandAT- 4 9 7
Symptom Condition Diagnostic Item Reference Page