Nissan 240SX - Automatic Transmission (Section AT) (2000 year). Instruction - part 5
3
CHECK SHIFT UP (D
2
TO D
3
)
Does A/T shift from D
2
to D
3
at the specified speed?
Read gear position, throttle position and vehicle speed.
Specified speed when shifting from D
2
to D
3
:
Refer to Shift schedule, AT-288.
SAT960I
Yes or No
Yes
©
GO TO 4.
No
©
Go to “13. A/T Does Not Shift: D
2
,
D
3
”, AT-171.
4
CHECK SHIFT UP (D
3
TO D
4
) AND ENGINE BRAKE
Release accelerator pedal after shifting from D
2
to D
3
.
Does A/T shift from D
3
to D
4
and does vehicle decelerate by engine brake?
Read gear position, throttle position and vehicle speed.
SAT405H
Yes or No
Yes
©
1. Stop vehicle.
2. Go to “Cruise test — Part 3”, AT-66.
No
©
Go to “14. A/T Does Not Shift: D
3
,
D
4
”, AT-174.
GI
MA
EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — BASIC INSPECTION
Road Test (Cont’d)
AT-65
Cruise Test — Part 3
=NMAT0024S0406
1
VEHICLE SPEED D
4
POSITION
1. Confirm overdrive control switch is in “ON” position.
2. Confirm selector lever is in “D” position.
3. Accelerate vehicle using half-throttle to D
4
.
SAT812A
©
GO TO 2.
2
CHECK SHIFT DOWN (D
4
TO D
3
)
1. Release accelerator pedal.
2. Set overdrive control switch to “OFF” position while driving in D
4
.
3. Does A/T shift from D
4
to D
3
(O/D OFF)?
Read gear position and vehicle speed.
SAT410K
Yes or No
Yes
©
GO TO 3.
No
©
Go to “20. A/T Does Not Shift: D
4
,
D
3
, When Overdrive Control Switch “ON”
,
“OFF”,
AT-185.
TROUBLE DIAGNOSIS — BASIC INSPECTION
Road Test (Cont’d)
AT-66
3
CHECK ENGINE BRAKE
Does vehicle decelerate by engine brake?
SAT410K
Yes or No
Yes
©
GO TO 4.
No
©
Go to “18. Engine Speed Does Not Return To Idle (Light Braking D
4
,
D
3
)”, AT-182.
4
CHECK SHIFT DOWN (D
3
TO D
2
)
1. Move selector lever from “D” to “2” position while driving in D
3
(O/D OFF).
2. Does A/T shift from D
3
(O/D OFF) to 2
2
?
Read gear position.
SAT411K
Yes or No
Yes
©
GO TO 5.
No
©
Go to “21. A/T Does Not Shift: D
3
,
D
2
, When Selector Lever “D”
,
“2” Position”,
AT-186.
GI
MA
EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — BASIC INSPECTION
Road Test (Cont’d)
AT-67
5
CHECK ENGINE BRAKE
Does vehicle decelerate by engine brake?
SAT411K
Yes or No
Yes
©
GO TO 6.
No
©
Go to “18. Engine Speed Does Not Return To Idle (Light Braking D
4
,
D
3
)”, AT-182.
6
CHECK SHIFT DOWN (2
2
TO 1
1
)
1. Move selector lever from “2” to “1” position while driving in 2
2
.
2. Does A/T shift from 2
2
to 1
1
position?
SAT412K
Yes or No
Yes
©
GO TO 7.
No
©
Go to “22. A/T Does Not Shift: 2
2
,
1
1
, When Selector lever “2”
,
“1” Position”, AT-187.
TROUBLE DIAGNOSIS — BASIC INSPECTION
Road Test (Cont’d)
AT-68
7
CHECK ENGINE BRAKE
Does vehicle decelerate by engine brake?
SAT412K
Yes or No
Yes
©
1. Stop vehicle.
2. Perform self-diagnosis. Refer to SELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II), AT-37.
No
©
Go to “23. Vehicle Does Not Decelerate By Engine Brake”, AT-188.
GI
MA
EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — BASIC INSPECTION
Road Test (Cont’d)
AT-69
Symptom Chart
NMAT0256
Numbers are arranged in order of inspection.
Perform inspections starting with number one and work up.
Items
Symptom
Condition
Diagnostic Item
Reference Page
No Lock-up
Engagement/TCC
Inoperative
Torque converter
is not locked up.
ON vehicle
1. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
AT-89, 95
3. Park/neutral position (PNP) switch
adjustment
AT-206
4. Engine speed signal
AT-132
5. A/T fluid temperature sensor
AT-125
6. Line pressure test
AT-51
7. Torque converter clutch solenoid valve
AT-120
8. Control valve assembly
AT-205
OFF vehicle
9. Torque converter
AT-215
Torque converter
clutch piston slip.
ON vehicle
1. Fluid level
AT-9
2. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
3. Line pressure test
AT-51
4. Torque converter clutch solenoid valve
AT-120
5. Line pressure solenoid valve
AT-136
6. Control valve assembly
AT-205
OFF vehicle
7. Torque converter
AT-215
Lock-up point is
extremely high or
low.
AT-177
ON vehicle
1. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
AT-89, 95
3. Torque converter clutch solenoid valve
AT-120
4. Control valve assembly
AT-205
Shift Shock
Sharp shock in
shifting from N to
D position.
ON vehicle
1. Engine idling rpm
EC-50, “Basic Inspec-
tion”.
2. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
3. Line pressure test
AT-51
4. A/T fluid temperature sensor
AT-125
5. Engine speed signal
AT-132
6. Line pressure solenoid valve
AT-136
7. Control valve assembly
AT-205
8. Accumulator N-D
AT-205
OFF vehicle
9. Forward clutch
AT-249
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart
AT-70
Items
Symptom
Condition
Diagnostic Item
Reference Page
Shift Shock
Too sharp a
shock in change
from D
1
to D
2
.
ON vehicle
1. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
2. Line pressure test
AT-51
3. Accumulator servo release
AT-205
4. Control valve assembly
AT-205
5. A/T fluid temperature sensor
AT-125
OFF vehicle
6. Brake band
AT-262
Too sharp a
shock in change
from D
2
to D
3
.
ON vehicle
1. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
2. Line pressure test
AT-51
3. Control valve assembly
AT-205
OFF vehicle
4. High clutch
AT-246
5. Brake band
AT-262
Too sharp a
shock in change
from D
3
to D
4
.
ON vehicle
1. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
2. Line pressure test
AT-51
3. Control valve assembly
AT-205
OFF vehicle
4. Brake band
AT-262
5. Overrun clutch
AT-249
Gear change
shock felt during
deceleration by
releasing accel-
erator pedal.
ON vehicle
1. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
2. Line pressure test
AT-51
3. Overrun clutch solenoid valve
AT-116
4. Control valve assembly
AT-205
Large shock
changing from 1
2
to 1
1
in 1 position.
ON vehicle
1. Control valve assembly
AT-205
ON vehicle
2. Low & reverse brake
AT-253
GI
MA
EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart (Cont’d)
AT-71
Items
Symptom
Condition
Diagnostic Item
Reference Page
Improper Shift
Timing
Too high a gear
change point from
D
1
to D
2
, from D
2
to D
3
, from D
3
to
D
4
.
AT-168, 171, 174
ON vehicle
1. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
AT-89, 95
3. Shift solenoid valve A
AT-106
4. Shift solenoid valve B
AT-111
Gear change
directly from D
1
to
D
3
occurs.
ON vehicle
1. Fluid level
AT-9
2. Accumulator servo release
AT-205
OFF vehicle
3. Brake band
AT-262
Too high a
change point from
D
4
to D
3
, from D
3
to D
2
, from D
2
to
D
1
.
ON vehicle
1. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
AT-89, 95
Kickdown does
not operate when
depressing pedal
in D
4
within kick-
down vehicle
speed.
ON vehicle
1. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
AT-89, 95
3. Shift solenoid valve A
AT-106
4. Shift solenoid valve B
AT-111
Kickdown oper-
ates or engine
overruns when
depressing pedal
in D
4
beyond kick-
down vehicle
speed limit.
ON vehicle
1. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
AT-89, 95
2. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
3. Shift solenoid valve A
AT-106
4. Shift solenoid valve B
AT-111
Gear change from
2
2
to 2
3
in 2 posi-
tion.
ON vehicle
1. Park/neutral position (PNP) switch
adjustment
AT-206
Gear change from
1
1
to 1
2
in 1 posi-
tion.
ON vehicle
1. Park/neutral position (PNP) switch
adjustment
AT-206
2. Manual control linkage adjustment
AT-207
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart (Cont’d)
AT-72
Items
Symptom
Condition
Diagnostic Item
Reference Page
No Down Shift
Failure to change
gear from D
4
to
D
3
.
ON vehicle
1. Fluid level
AT-9
2. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
3. Overrun clutch solenoid valve
AT-116
4. Shift solenoid valve A
AT-106
5. Line pressure solenoid valve
AT-136
6. Control valve assembly
AT-205
OFF vehicle
7. Low & reverse brake
AT-253
8. Overrun clutch
AT-249
Failure to change
gear from D
3
to
D
2
or from D
4
to
D
2
.
ON vehicle
1. Fluid level
AT-9
2. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
3. Shift solenoid valve A
AT-106
4. Shift solenoid valve B
AT-111
5. Control valve assembly
AT-205
OFF vehicle
6. High clutch
AT-246
7. Brake band
AT-262
Failure to change
gear from D
2
to
D
1
or from D
3
to
D
1
.
ON vehicle
1. Fluid level
AT-9
2. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
3. Shift solenoid valve A
AT-106
4. Shift solenoid valve B
AT-111
5. Control valve assembly
AT-205
OFF vehicle
6. Low one-way clutch
AT-257
7. High clutch
AT-246
8. Brake band
AT-262
GI
MA
EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart (Cont’d)
AT-73
Items
Symptom
Condition
Diagnostic Item
Reference Page
No Down Shift
Failure to change
from D
3
to 2
2
when changing
lever into 2 posi-
tion.
AT-182
ON vehicle
1. Park/neutral position (PNP) switch
adjustment
AT-206
2. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
3. Overrun clutch solenoid valve
AT-116
4. Shift solenoid valve B
AT-111
5. Shift solenoid valve A
AT-106
6. Control valve assembly
AT-205
7. Manual control linkage adjustment
AT-207
OFF vehicle
8. Brake band
AT-262
9. Overrun clutch
AT-249
Does not change
from 1
2
to 1
1
in 1
position.
ON vehicle
1. Park/neutral position (PNP) switch
adjustment
AT-206
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
AT-89, 95
3. Shift solenoid valve A
AT-106
4. Control valve assembly
AT-205
5. Overrun clutch solenoid valve
AT-116
OFF vehicle
6. Overrun clutch
AT-249
7. Low & reverse brake
AT-253
No Up Shift
Failure to change
gear from D
1
to
D
2
.
ON vehicle
1. Park/neutral position (PNP) switch
adjustment
AT-206
2. Manual control linkage adjustment
AT-207
3. Shift solenoid valve A
AT-106
4. Control valve assembly
AT-205
5. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
AT-89, 95
OFF vehicle
6. Brake band
AT-262
Failure to change
gear from D
2
to
D
3
.
ON vehicle
1. Park/neutral position (PNP) switch
adjustment
AT-206
2. Manual control linkage adjustment
AT-207
3. Shift solenoid valve B
AT-111
4. Control valve assembly
AT-205
5. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
AT-89, 95
OFF vehicle
6. High clutch
AT-246
7. Brake band
AT-262
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart (Cont’d)
AT-74
Items
Symptom
Condition
Diagnostic Item
Reference Page
No Up Shift
Failure to change
gear from D
3
to
D
4
.
ON vehicle
1. Park/neutral position (PNP) switch
adjustment
AT-206
2. Manual control linkage adjustment
AT-207
3. Shift solenoid valve A
AT-106
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
AT-89, 95
5. A/T fluid temperature sensor
AT-125
OFF vehicle
6. Brake band
AT-262
A/T does not shift
to D
4
when driv-
ing with overdrive
control switch ON.
ON vehicle
1. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
2. Park/neutral position (PNP) switch
adjustment
AT-206
3. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
AT-89, 95
4. Shift solenoid valve A
AT-106
5. Overrun clutch solenoid valve
AT-116
6. Control valve assembly
AT-205
7. A/T fluid temperature sensor
AT-125
8. Line pressure solenoid valve
AT-136
OFF vehicle
9. Brake band
AT-262
10. Overrun clutch
AT-249
Slips/Will Not
Engage
Vehicle will not
run in R position
(but runs in D, 2
and 1 positions).
Clutch slips.
Very poor accel-
eration.
AT-159
ON vehicle
1. Manual control linkage adjustment
AT-207
2. Line pressure test
AT-51
3. Line pressure solenoid valve
AT-136
4. Control valve assembly
AT-205
OFF vehicle
5. Reverse clutch
AT-243
6. High clutch
AT-246
7. Forward clutch
AT-249
8. Overrun clutch
AT-249
9. Low & reverse brake
AT-253
Vehicle will not
run in D and 2
positions (but
runs in 1 and R
positions).
ON vehicle
1. Manual control linkage adjustment
AT-207
OFF vehicle
2. Low one-way clutch
AT-257
GI
MA
EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart (Cont’d)
AT-75
Items
Symptom
Condition
Diagnostic Item
Reference Page
Slips/Will Not
Engage
Vehicle will not
run in D, 1, 2
positions (but
runs in R posi-
tion). Clutch slips.
Very poor accel-
eration.
AT-162
ON vehicle
1. Fluid level
AT-9
2. Line pressure test
AT-51
3. Line pressure solenoid valve
AT-136
4. Control valve assembly
AT-205
5. Accumulator N-D
AT-205
OFF vehicle
6. Reverse clutch
AT-243
7. High clutch
AT-246
8. Forward clutch
AT-249
9. Forward one-way clutch
AT-259
10. Low one-way clutch
AT-257
Clutches or
brakes slip some-
what in starting.
ON vehicle
1. Fluid level
AT-9
2. Manual control linkage adjustment
AT-207
3. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
4. Line pressure test
AT-51
5. Line pressure solenoid valve
AT-136
6. Control valve assembly
AT-205
7. Accumulator N-D
AT-205
OFF vehicle
8. Forward clutch
AT-249
9. Reverse clutch
AT-243
10. Low & reverse brake
AT-253
11. Oil pump
AT-226
12. Torque converter
AT-215
No creep at all.
AT-159, 162
ON vehicle
1. Fluid level
AT-9
2. Line pressure test
AT-51
3. Control valve assembly
AT-205
OFF vehicle
4. Forward clutch
AT-249
5. Oil pump
AT-226
6. Torque converter
AT-215
Almost no shock
or clutches slip-
ping in change
from D
1
to D
2
.
ON vehicle
1. Fluid level
AT-9
2. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
3. Line pressure test
AT-51
4. Accumulator servo release
AT-205
5. Control valve assembly
AT-205
OFF vehicle
6. Brake band
AT-262
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart (Cont’d)
AT-76
Items
Symptom
Condition
Diagnostic Item
Reference Page
Slips/Will Not
Engage
Almost no shock
or slipping in
change from D
2
to
D
3
.
ON vehicle
1. Fluid level
AT-9
2. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
3. Line pressure test
AT-51
4. Control valve assembly
AT-205
OFF vehicle
5. High clutch
AT-246
6. Forward clutch
AT-249
Almost no shock
or slipping in
change from D
3
to
D
4
.
ON vehicle
1. Fluid level
AT-9
2. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
3. Line pressure test
AT-51
4. Control valve assembly
AT-205
OFF vehicle
5. High clutch
AT-246
6. Brake band
AT-262
Races extremely
fast or slips in
changing from D
4
to D
3
when
depressing pedal.
ON vehicle
1. Fluid level
AT-9
2. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
3. Line pressure test
AT-51
4. Line pressure solenoid valve
AT-136
5. Control valve assembly
AT-205
OFF vehicle
6. High clutch
AT-246
7. Forward clutch
AT-249
Races extremely
fast or slips in
changing from D
4
to D
2
when
depressing pedal.
ON vehicle
1. Fluid level
AT-9
2. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
3. Line pressure test
AT-51
4. Line pressure solenoid valve
AT-136
5. Shift solenoid valve A
AT-106
6. Control valve assembly
AT-205
OFF vehicle
7. Brake band
AT-262
8. Forward clutch
AT-249
GI
MA
EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart (Cont’d)
AT-77
Items
Symptom
Condition
Diagnostic Item
Reference Page
Slips/Will Not
Engage
Races extremely
fast or slips in
changing from D
3
to D
2
when
depressing pedal.
ON vehicle
1. Fluid level
AT-9
2. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
3. Line pressure test
AT-51
4. Line pressure solenoid valve
AT-136
5. Control valve assembly
AT-205
6. A/T fluid temperature sensor
AT-125
OFF vehicle
7. Brake band
AT-262
8. Forward clutch
AT-249
9. High clutch
AT-246
Races extremely
fast or slips in
changing from D
4
or D
3
to D
1
when
depressing pedal.
ON vehicle
1. Fluid level
AT-9
2. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
3. Line pressure test
AT-51
4. Line pressure solenoid valve
AT-136
5. Control valve assembly
AT-205
OFF vehicle
6. Forward clutch
AT-249
7. Forward one-way clutch
AT-259
8. Low one-way clutch
AT-257
Vehicle will not
run in any posi-
tion.
ON vehicle
1. Fluid level
AT-9
2. Manual control linkage adjustment
AT-207
3. Line pressure test
AT-51
4. Line pressure solenoid valve
AT-136
OFF vehicle
5. Oil pump
AT-226
6. High clutch
AT-246
7. Brake band
AT-262
8. Low & reverse brake
AT-253
9. Torque converter
AT-215
10. Parking pawl components
AT-206
NOT USED
Engine cannot be
started in P and N
positions.
AT-153
ON vehicle
1. Ignition switch and starter
EL-7, “Schematic”,
and SC-12, “System
Description”.
2. Manual control linkage adjustment
AT-207
3. Park/neutral position (PNP) switch
adjustment
AT-206
Engine starts in
positions other
than P and N.
AT-153
ON vehicle
1. Manual control linkage adjustment
AT-207
2. Park/neutral position (PNP) switch
adjustment
AT-206
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart (Cont’d)
AT-78
Items
Symptom
Condition
Diagnostic Item
Reference Page
NOT USED
Transmission
noise in P and N
positions.
ON vehicle
1. Fluid level
AT-9
2. Line pressure test
AT-51
3. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
AT-89, 95
5. Engine speed signal
AT-132
OFF vehicle
6. Oil pump
AT-226
7. Torque converter
AT-215
Vehicle moves
when changing
into P position or
parking gear does
not disengage
when shifted out
of P position.
AT-154
ON vehicle
1. Manual control linkage adjustment
AT-207
OFF vehicle
2. Parking pawl components
AT-206
Vehicle runs in N
position.
AT-155
ON vehicle
1. Manual control linkage adjustment
AT-207
OFF vehicle
2. Forward clutch
AT-249
3. Reverse clutch
AT-243
4. Overrun clutch
AT-249
Vehicle braked
when shifting into
R position.
ON vehicle
1. Fluid level
AT-9
2. Manual control linkage adjustment
AT-207
3. Line pressure test
AT-51
4. Line pressure solenoid valve
AT-136
5. Control valve assembly
AT-205
OFF vehicle
6. High clutch
AT-246
7. Brake band
AT-262
8. Forward clutch
AT-249
9. Overrun clutch
AT-249
Excessive creep.
ON vehicle
1. Engine idling rpm
EC-50, “Basic Inspec-
tion”.
Engine stops
when shifting
lever into R, D, 2
and 1.
ON vehicle
1. Engine idling rpm
EC-50, “Basic Inspec-
tion”.
2. Torque converter clutch solenoid valve
AT-120
3. Control valve assembly
AT-205
OFF vehicle
4. Torque converter
AT-215
Vehicle braked by
gear change from
D
1
to D
2
.
ON vehicle
1. Fluid level
AT-9
OFF vehicle
2. Reverse clutch
AT-243
3. Low & reverse brake
AT-253
4. High clutch
AT-246
5. Low one-way clutch
AT-257
GI
MA
EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart (Cont’d)
AT-79
Items
Symptom
Condition
Diagnostic Item
Reference Page
NOT USED
Vehicle braked by
gear change from
D
2
to D
3
.
ON vehicle
1. Fluid level
AT-9
OFF vehicle
2. Brake band
AT-262
Vehicle braked by
gear change from
D
3
to D
4
.
ON vehicle
1. Fluid level
AT-9
OFF vehicle
2. Overrun clutch
AT-249
3. Forward one-way clutch
AT-259
4. Reverse clutch
AT-243
Maximum speed
not attained.
Acceleration poor.
ON vehicle
1. Fluid level
AT-9
2. Park/neutral position (PNP) switch
adjustment
AT-206
3. Shift solenoid valve A
AT-106
4. Shift solenoid valve B
AT-111
5. Control valve assembly
AT-205
OFF vehicle
6. Reverse clutch
AT-243
7. High clutch
AT-246
8. Brake band
AT-262
9. Low & reverse brake
AT-253
10. Oil pump
AT-226
11. Torque converter
AT-215
Transmission
noise in D, 2, 1
and R positions.
ON vehicle
1. Fluid level
AT-9
ON vehicle
2. Torque converter
AT-215
Engine brake
does not operate
in “1” position.
AT-184
ON vehicle
1. Park/neutral position (PNP) switch
adjustment
AT-206
2. Manual control linkage adjustment
AT-207
3. Throttle position sensor (Adjustment)
EC-50, “Basic Inspec-
tion”.
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
AT-89, 95
5. Shift solenoid valve A
AT-106
6. Control valve assembly
AT-205
7. Overrun clutch solenoid valve
AT-116
OFF vehicle
8. Overrun clutch
AT-249
9. Low & reverse brake
AT-253
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart (Cont’d)
AT-80
