Page 105 of 2898
4 CHECK ENGINE BRAKE
Does vehicle decelerate by engine brake?
SAT791GA
YesorNo
Ye s©GO TO 5.
No©Go to ª15. Engine Speed Does Not Return To Idle (Light Braking D
4®D3)º, AT-328.
Continue ROAD TEST.
5 CHECK SHIFT DOWN
1. Move selector lever from ª2º to ª1º position while driving in 22.
2. Does A/T shift from 2
2to 11position?
Read gear position.
SAT778B
YesorNo
Ye s©GO TO 6.
No©Go to ª19. A/T Does Not Shift: 2
2®11, When Selector lever ª2º®ª1º Positionº, AT-333.
Continue ROAD TEST.
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-103
Page 106 of 2898
6 CHECK ENGINE BRAKE
Does vehicle decelerate by engine brake?
SAT778B
YesorNo
Ye s©1. Stop vehicle.
2. Perform self-diagnosis. General and except for Euro-OBD: Refer to ªSELF-DIAGNOS-
TIC PROCEDURE (Without CONSULT-II)º, AT-44/EURO-OBD: Refer to ªTCM SELF-
DIAGNOSTIC PROCEDURE (NO TOOLS)º, AT-63.
No©Go to ª20. Vehicle Does Not Decelerate By Engine Brakeº, AT-334. Continue ROAD
TEST.
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-104
Page 107 of 2898

Symptom ChartNJAT0029Numbers are arranged in order of inspection.
Perform inspections starting with number one and work up.
Symptom Condition Diagnostic ItemReference Page
General and
except for
Euro-OBDEURO-OBD
Engine cannot start in ªPº and ªNº
positions.
AT-299ON vehicle1. Ignition switch and starterEL-10, ªPOWER SUPPLY
ROUTINGº and SC-13,
ªSTARTING SYSTEMº
2. Control cable adjustment AT-352¬
3. PNP switch adjustment AT-352¬
Engine starts in position other than
ªNº and ªPº positions.
AT-299ON vehicle1. Control cable adjustment AT-352¬
2. PNP switch adjustment AT-352¬
Transaxle noise in ªPº and ªNº
positions.ON vehicle1. Fluid level AT-80¬
2. Line pressure test AT-84¬
3. Throttle position sensor (Adjustment)EC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORº
4. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-126,
AT-131AT-195,
AT-281
5. Engine speed signal AT-172 AT-200
OFF vehicle6. Oil pump AT-384¬
7. Torque converter AT-366¬
Vehicle moves when changing into
ªPº position, or parking gear does
not disengage when shifted out of
ªPº position.
AT-300ON vehicle 1. Control cable adjustment AT-352¬
OFF vehicle 2. Parking componentsAT-361,
AT-362AT-362
Vehicle runs in ªNº position.
AT-301ON vehicle 1. Control cable adjustment AT-352¬
OFF vehicle2. Forward clutch AT-412¬
3. Reverse clutch AT-403¬
4. Overrun clutch AT-412¬
Vehicle will not run in ªRº position
(but runs in ªDº, ª2º and ª1º posi-
tions). Clutch slips.
Very poor acceleration.
AT-305ON vehicle1. Control cable adjustment AT-352¬
2. Line pressure test AT-84¬
3. Line pressure solenoid valve AT-176 AT-239
4. Control valve assembly AT-351¬
OFF vehicle5. Reverse clutch AT-403¬
6. High clutch AT-407¬
7. Forward clutch AT-412¬
8. Overrun clutch AT-412¬
9. Low & reverse brake AT-419¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart
AT-105
Page 108 of 2898

Symptom Condition Diagnostic ItemReference Page
General and
except for
Euro-OBDEURO-OBD
Vehicle braked when shifting into
ªRº position.ON vehicle1. Fluid level AT-80¬
2. Control cable adjustment AT-352¬
3. Line pressure test AT-84¬
4. Line pressure solenoid valve AT-176 AT-239
5. Control valve assembly AT-351¬
OFF vehicle6. High clutch AT-407¬
7. Brake band AT-437¬
8. Forward clutch AT-412¬
9. Overrun clutch AT-412¬
Sharp shock in shifting from ªNº to
ªDº position.ON vehicle1. Engine idling rpmEC-43, ªIdle
Speed and
Ignition Tim-
ingºEC-43, ªIdle
Speed and
Ignition Tim-
ingº
2. Throttle position sensor (Adjustment)EC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORº
3. Line pressure test AT-84¬
4. A/T fluid temperature sensor AT-165 AT-189
5. Engine speed signal AT-172 AT-200
6. Line pressure solenoid valve AT-176 AT-239
7. Control valve assembly AT-351¬
8. Accumulator N-D AT-351¬
OFF vehicle 9. Forward clutch AT-412¬
Vehicle will not run in ªDº and ª2º
positions (but runs in ª1º and ªRº
positions).ON vehicle 1. Control cable adjustment AT-352¬
OFF vehicle 2. Low one-way clutchAT-359,
AT-360AT-360
Vehicle will not run in ªDº, ª1º, ª2º
positions (but runs in ªRº position).
Clutch slips. Very poor accelera-
tion.
AT-308ON vehicle1. Fluid level AT-80¬
2. Line pressure test AT-84¬
3. Line pressure solenoid valve AT-176 AT-239
4. Control valve assembly AT-351¬
5. Accumulator N-D AT-351¬
OFF vehicle6. Reverse clutch AT-403¬
7. High clutch AT-407¬
8. Forward clutch AT-412¬
9. Forward one-way clutch AT-423¬
10. Low one-way clutchAT-359,
AT-360AT-360
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-106
Page 109 of 2898

Symptom Condition Diagnostic ItemReference Page
General and
except for
Euro-OBDEURO-OBD
Clutches or brakes slip somewhat
in starting.ON vehicle1. Fluid level AT-80¬
2. Control cable adjustment AT-352¬
3. Throttle position sensor (Adjustment)EC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORº
4. Line pressure test AT-84¬
5. Line pressure solenoid valve AT-176 AT-239
6. Control valve assembly AT-351¬
7. Accumulator N-D AT-351¬
OFF vehicle8. Forward clutch AT-412¬
9. Reverse clutch AT-403¬
10. Low & reverse brake AT-419¬
11. Oil pump AT-384¬
12. Torque converter AT-366¬
Excessive creep. ON vehicle 1. Engine idling rpmEC-43, ªIdle
Speed and
Ignition Tim-
ingºEC-43, ªIdle
Speed and
Ignition Tim-
ingº
No creep at all.
AT-305 and AT-308ON vehicle1. Fluid level AT-80¬
2. Line pressure test AT-84¬
3. Control valve assembly AT-351¬
OFF vehicle4. Forward clutch AT-412¬
5. Oil pump AT-384¬
6. Torque converter AT-366¬
Failure to change gear from ªD
1º
to ªD
2º.ON vehicle1. PNP switch adjustment AT-352¬
2. Control cable adjustment AT-352¬
3. Shift solenoid valve A AT-142 AT-246
4. Control valve assembly AT-351¬
5. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-126,
AT-131AT-195,
AT-281
OFF vehicle 6. Brake band AT-437¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-107
Page 110 of 2898

Symptom Condition Diagnostic ItemReference Page
General and
except for
Euro-OBDEURO-OBD
Failure to change gear from ªD
2º
to ªD
3º.ON vehicle1. PNP switch adjustment AT-352¬
2. Control cable adjustment AT-352¬
3. Shift solenoid valve B AT-148 AT-252
4. Control valve assembly AT-351¬
5. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-126,
AT-131AT-195,
AT-281
OFF vehicle6. High clutch AT-407¬
7. Brake band AT-437¬
Failure to change gear from ªD
3º
to ªD
4º.ON vehicle1. PNP switch adjustment AT-352¬
2. Control cable adjustment AT-352¬
3. Shift solenoid valve A AT-142 AT-246
4. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-126,
AT-131AT-195,
AT-281
5. A/T fluid temperature sensor AT-165 AT-189
OFF vehicle 6. Brake band AT-437¬
Too high a gear change point from
ªD
1ºtoªD2º, from ªD2ºtoªD3º,
from ªD
3ºtoªD4º.
AT-314, AT-317 and AT-320ON vehicle1. Throttle position sensor (Adjustment)EC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-126,
AT-131AT-195,
AT-281
3. Shift solenoid valve A AT-142 AT-246
4. Shift solenoid valve B AT-148 AT-252
Gear change directly from ªD
1ºto
ªD
3º occurs.ON vehicle1. Fluid level AT-80¬
2. Accumulator servo release AT-351¬
OFF vehicle 3. Brake band AT-437¬
Engine stops when shifting lever
into ªRº, ªDº, ª2º and ª1º.ON vehicle1. Engine idling rpmEC-43, ªIdle
Speed and
Ignition Tim-
ingºEC-43, ªIdle
Speed and
Ignition Tim-
ingº
2. Torque converter clutch solenoid valve AT-159 AT-233
3. Control valve assembly AT-351¬
OFF vehicle 4. Torque converter AT-366¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-108
Page 111 of 2898

Symptom Condition Diagnostic ItemReference Page
General and
except for
Euro-OBDEURO-OBD
Too sharp a shock in change from
ªD
1ºtoªD2º.ON vehicle1. Throttle position sensor (Adjustment)EC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Line pressure test AT-84¬
3. Accumulator servo release AT-351¬
4. Control valve assembly AT-351¬
5. A/T fluid temperature sensor AT-165 AT-189
OFF vehicle 6. Brake band AT-437¬
Too sharp a shock in change from
ªD
2ºtoªD3º.ON vehicle1. Throttle position sensor (Adjustment)EC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Line pressure test AT-84¬
3. Control valve assembly AT-351¬
OFF vehicle4. High clutch AT-407¬
5. Brake band AT-437¬
Too sharp a shock in change from
ªD
3ºtoªD4º.ON vehicle1. Throttle position sensor (Adjustment)EC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Line pressure test AT-84¬
3. Control valve assembly AT-351¬
OFF vehicle4. Brake band AT-437¬
5. Overrun clutch AT-412¬
Almost no shock or clutches slip-
ping in change from ªD
1ºtoªD2º.ON vehicle1. Fluid level AT-80¬
2. Throttle position sensor (Adjustment)EC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORº
3. Line pressure test AT-84¬
4. Accumulator servo release AT-351¬
5. Control valve assembly AT-351¬
OFF vehicle 6. Brake band AT-437¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-109
Page 112 of 2898

Symptom Condition Diagnostic ItemReference Page
General and
except for
Euro-OBDEURO-OBD
Almost no shock or slipping in
change from ªD
2ºtoªD3º.ON vehicle1. Fluid level AT-80¬
2. Throttle position sensor (Adjustment)EC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORº
3. Line pressure test AT-84¬
4. Control valve assembly AT-351¬
OFF vehicle5. High clutch AT-407¬
6. Brake band AT-437¬
Almost no shock or slipping in
change from ªD
3ºtoªD4º.ON vehicle1. Fluid level AT-80¬
2. Throttle position sensor (Adjustment)EC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORº
3. Line pressure test AT-84¬
4. Control valve assembly AT-351¬
OFF vehicle5. High clutch AT-407¬
6. Brake band AT-437¬
Vehicle braked by gear change
from ªD
1ºtoªD2º.ON vehicle 1. Fluid level AT-80¬
OFF vehicle2. Reverse clutch AT-403¬
3. Low & reverse brake AT-419¬
4. High clutch AT-407¬
5. Low one-way clutchAT-359,
AT-360AT-360
Vehicle braked by gear change
from ªD
2ºtoªD3º.ON vehicle 1. Fluid level AT-80¬
OFF vehicle 2. Brake band AT-437¬
Vehicle braked by gear change
from ªD
3ºtoªD4º.ON vehicle 1. Fluid level AT-80¬
OFF vehicle2. Overrun clutch AT-412¬
3. Forward one-way clutch AT-423¬
4. Reverse clutch AT-403¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-110