Page 1289 of 2493

Symptom ChartNJAT0029Numbers are arranged in order of inspection.
Perform inspections starting with number one and work up.
Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Engine cannot start in ªPº and ªNº
positions.
AT-291ON vehicle1. Ignition switch and starterEL-10, ªPOWER SUPPLY
ROUTINGº and SC-13,
ªSTARTING SYSTEMº
2. Control cable adjustment AT-344¬
3. PNP switch adjustment AT-344¬
Engine starts in position other than
ªNº and ªPº positions.
AT-291ON vehicle1. Control cable adjustment AT-344¬
2. PNP switch adjustment AT-344¬
Transaxle noise in ªPº and ªNº
positions.ON vehicle1. Fluid level AT-78¬
2. Line pressure test AT-82¬
3. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
4. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
5. Engine speed signal AT-170 AT-198
OFF vehicle6. Oil pump AT-371¬
7. Torque converter AT-354¬
Vehicle moves when changing into
ªPº position, or parking gear does
not disengage when shifted out of
ªPº position.
AT-292ON vehicle 1. Control cable adjustment AT-344¬
OFF vehicle 2. Parking components AT-351 AT-351
Vehicle runs in ªNº position.
AT-293ON vehicle 1. Control cable adjustment AT-344¬
OFF vehicle2. Forward clutch AT-399¬
3. Reverse clutch AT-390¬
4. Overrun clutch AT-399¬
Vehicle will not run in ªRº position
(but runs in ªDº, ª2º and ª1º posi-
tions). Clutch slips.
Very poor acceleration.
AT-297ON vehicle1. Control cable adjustment AT-344¬
2. Line pressure test AT-82¬
3. Line pressure solenoid valve AT-174 AT-237
4. Control valve assembly AT-343¬
OFF vehicle5. Reverse clutch AT-390¬
6. High clutch AT-394¬
7. Forward clutch AT-399¬
8. Overrun clutch AT-399¬
9. Low & reverse brake AT-406¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart
AT-103
Page 1290 of 2493

Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Vehicle braked when shifting into
ªRº position.ON vehicle1. Fluid level AT-78¬
2. Control cable adjustment AT-344¬
3. Line pressure test AT-82¬
4. Line pressure solenoid valve AT-174 AT-237
5. Control valve assembly AT-343¬
OFF vehicle6. High clutch AT-394¬
7. Brake band AT-419¬
8. Forward clutch AT-399¬
9. Overrun clutch AT-399¬
Sharp shock in shifting from ªNº to
ªDº position.ON vehicle1. Engine idling rpmEC-41, ªIdle
Speed and
Ignition Tim-
ingºEC-41, ªIdle
Speed and
Ignition Tim-
ingº
2. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
3. Line pressure test AT-82¬
4. A/T fluid temperature sensor AT-163 AT-187
5. Engine speed signal AT-170 AT-198
6. Line pressure solenoid valve AT-174 AT-237
7. Control valve assembly AT-343¬
8. Accumulator N-D AT-343¬
OFF vehicle 9. Forward clutch AT-399¬
Vehicle will not run in ªDº and ª2º
positions (but runs in ª1º and ªRº
positions).ON vehicle 1. Control cable adjustment AT-344¬
OFF vehicle 2. Low one-way clutch AT-350 AT-350
Vehicle will not run in ªDº, ª1º, ª2º
positions (but runs in ªRº position).
Clutch slips. Very poor accelera-
tion.
AT-300ON vehicle1. Fluid level AT-78¬
2. Line pressure test AT-82¬
3. Line pressure solenoid valve AT-174 AT-237
4. Control valve assembly AT-343¬
5. Accumulator N-D AT-343¬
OFF vehicle6. Reverse clutch AT-390¬
7. High clutch AT-394¬
8. Forward clutch AT-399¬
9. Forward one-way clutch AT-410¬
10. Low one-way clutch AT-350 AT-350
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-104
Page 1291 of 2493

Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Clutches or brakes slip somewhat
in starting.ON vehicle1. Fluid level AT-78¬
2. Control cable adjustment AT-344¬
3. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
4. Line pressure test AT-82¬
5. Line pressure solenoid valve AT-174 AT-237
6. Control valve assembly AT-343¬
7. Accumulator N-D AT-343¬
OFF vehicle8. Forward clutch AT-399¬
9. Reverse clutch AT-390¬
10. Low & reverse brake AT-406¬
11. Oil pump AT-371¬
12. Torque converter AT-354¬
Excessive creep. ON vehicle 1. Engine idling rpmEC-41, ªIdle
Speed and
Ignition Tim-
ingºEC-41, ªIdle
Speed and
Ignition Tim-
ingº
No creep at all.
AT-297 and AT-300ON vehicle1. Fluid level AT-78¬
2. Line pressure test AT-82¬
3. Control valve assembly AT-343¬
OFF vehicle4. Forward clutch AT-399¬
5. Oil pump AT-371¬
6. Torque converter AT-354¬
Failure to change gear from ªD
1º
to ªD
2º.ON vehicle1. PNP switch adjustment AT-344¬
2. Control cable adjustment AT-344¬
3. Shift solenoid valve A AT-140 AT-244
4. Control valve assembly AT-343¬
5. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
OFF vehicle 6. Brake band AT-419¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-105
Page 1292 of 2493

Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Failure to change gear from ªD
2º
to ªD
3º.ON vehicle1. PNP switch adjustment AT-344¬
2. Control cable adjustment AT-344¬
3. Shift solenoid valve B AT-146 AT-250
4. Control valve assembly AT-343¬
5. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
OFF vehicle6. High clutch AT-394¬
7. Brake band AT-419¬
Failure to change gear from ªD
3º
to ªD
4º.ON vehicle1. PNP switch adjustment AT-344¬
2. Control cable adjustment AT-344¬
3. Shift solenoid valve A AT-140 AT-244
4. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
5. A/T fluid temperature sensor AT-163 AT-187
OFF vehicle 6. Brake band AT-419¬
Too high a gear change point from
ªD
1ºtoªD2º, from ªD2ºtoªD3º,
from ªD
3ºtoªD4º.
AT-306, AT-309 and AT-312ON vehicle1. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
3. Shift solenoid valve A AT-140 AT-244
4. Shift solenoid valve B AT-146 AT-250
Gear change directly from ªD
1ºto
ªD
3º occurs.ON vehicle1. Fluid level AT-78¬
2. Accumulator servo release AT-343¬
OFF vehicle 3. Brake band AT-419¬
Engine stops when shifting lever
into ªRº, ªDº, ª2º and ª1º.ON vehicle1. Engine idling rpmEC-41, ªIdle
Speed and
Ignition Tim-
ingºEC-41, ªIdle
Speed and
Ignition Tim-
ingº
2. Torque converter clutch solenoid valve AT-157 AT-231
3. Control valve assembly AT-343¬
OFF vehicle 4. Torque converter AT-354¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-106
Page 1293 of 2493

Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Too sharp a shock in change from
ªD
1ºtoªD2º.ON vehicle1. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Line pressure test AT-82¬
3. Accumulator servo release AT-343¬
4. Control valve assembly AT-343¬
5. A/T fluid temperature sensor AT-163 AT-187
OFF vehicle 6. Brake band AT-419¬
Too sharp a shock in change from
ªD
2ºtoªD3º.ON vehicle1. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Line pressure test AT-82¬
3. Control valve assembly AT-343¬
OFF vehicle4. High clutch AT-394¬
5. Brake band AT-419¬
Too sharp a shock in change from
ªD
3ºtoªD4º.ON vehicle1. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Line pressure test AT-82¬
3. Control valve assembly AT-343¬
OFF vehicle4. Brake band AT-419¬
5. Overrun clutch AT-399¬
Almost no shock or clutches slip-
ping in change from ªD
1ºtoªD2º.ON vehicle1. Fluid level AT-78¬
2. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
3. Line pressure test AT-82¬
4. Accumulator servo release AT-343¬
5. Control valve assembly AT-343¬
OFF vehicle 6. Brake band AT-419¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-107
Page 1294 of 2493

Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Almost no shock or slipping in
change from ªD
2ºtoªD3º.ON vehicle1. Fluid level AT-78¬
2. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
3. Line pressure test AT-82¬
4. Control valve assembly AT-343¬
OFF vehicle5. High clutch AT-394¬
6. Brake band AT-419¬
Almost no shock or slipping in
change from ªD
3ºtoªD4º.ON vehicle1. Fluid level AT-78¬
2. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
3. Line pressure test AT-82¬
4. Control valve assembly AT-343¬
OFF vehicle5. High clutch AT-394¬
6. Brake band AT-419¬
Vehicle braked by gear change
from ªD
1ºtoªD2º.ON vehicle 1. Fluid level AT-78¬
OFF vehicle2. Reverse clutch AT-390¬
3. Low & reverse brake AT-406¬
4. High clutch AT-394¬
5. Low one-way clutch AT-350 AT-350
Vehicle braked by gear change
from ªD
2ºtoªD3º.ON vehicle 1. Fluid level AT-78¬
OFF vehicle 2. Brake band AT-419¬
Vehicle braked by gear change
from ªD
3ºtoªD4º.ON vehicle 1. Fluid level AT-78¬
OFF vehicle2. Overrun clutch AT-399¬
3. Forward one-way clutch AT-410¬
4. Reverse clutch AT-390¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-108
Page 1295 of 2493

Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Maximum speed not attained.
Acceleration poor.ON vehicle1. Fluid level AT-78¬
2. PNP switch adjustment AT-344¬
3. Shift solenoid valve A AT-140 AT-244
4. Shift solenoid valve B AT-146 AT-250
5. Control valve assembly AT-343¬
OFF vehicle6. Reverse clutch AT-390¬
7. High clutch AT-394¬
8. Brake band AT-419¬
9. Low & reverse brake AT-406¬
10. Oil pump AT-371¬
11. Torque converter AT-354¬
Failure to change gear from ªD
4º
to ªD
3º.ON vehicle1. Fluid level AT-78¬
2. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
3. Overrun clutch solenoid valve AT-152 AT-265
4. Shift solenoid valve A AT-140 AT-244
5. Line pressure solenoid valve AT-174 AT-237
6. Control valve assembly AT-343¬
OFF vehicle7. Low & reverse brake AT-406¬
8. Overrun clutch AT-399¬
Failure to change gear from ªD
3º
to ªD
2º or from ªD4ºtoªD2º.ON vehicle1. Fluid level AT-78¬
2. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
3. Shift solenoid valve A AT-140 AT-244
4. Shift solenoid valve B AT-146 AT-250
5. Control valve assembly AT-343¬
OFF vehicle6. High clutch AT-394¬
7. Brake band AT-419¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-109
Page 1296 of 2493

Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Failure to change gear from ªD
2º
to ªD
1º or from ªD3ºtoªD1º.ON vehicle1. Fluid level AT-78¬
2. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
3. Shift solenoid valve A AT-140 AT-244
4. Shift solenoid valve B AT-146 AT-250
5. Control valve assembly AT-343¬
OFF vehicle6. Low one-way clutch AT-350 AT-350
7. High clutch AT-394¬
8. Brake band AT-419¬
Gear change shock felt during
deceleration by releasing accelera-
tor pedal.ON vehicle1. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Line pressure test AT-82¬
3. Overrun clutch solenoid valve AT-152 AT-265
4. Control valve assembly AT-343¬
Too high a change point from ªD
4º
to ªD
3º, from ªD3ºtoªD2º, from
ªD
2ºtoªD1º.ON vehicle1. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
Kickdown does not operate when
depressing pedal in ªD
4º within
kickdown vehicle speed.ON vehicle1. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
3. Shift solenoid valve A AT-140 AT-244
4. Shift solenoid valve B AT-146 AT-250
Kickdown operates or engine over-
runs when depressing pedal in
ªD
4º beyond kickdown vehicle
speed limit.ON vehicle1. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
2. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
3. Shift solenoid valve A AT-140 AT-244
4. Shift solenoid valve B AT-146 AT-250
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-110