Page 1297 of 2493

Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Races extremely fast or slips in
changing from ªD
4ºtoªD3º when
depressing pedal.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. Line pressure solenoid valve AT-174 AT-237
5. Control valve assembly AT-343¬
OFF vehicle6. High clutch AT-394¬
7. Forward clutch AT-399¬
Races extremely fast or slips in
changing from ªD
4ºtoªD2º when
depressing pedal.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. Line pressure solenoid valve AT-174 AT-237
5. Shift solenoid valve A AT-140 AT-244
6. Control valve assembly AT-343¬
OFF vehicle7. Brake band AT-419¬
8. Forward clutch AT-399¬
Races extremely fast or slips in
changing from ªD
3ºtoªD2º when
depressing pedal.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. Line pressure solenoid valve AT-174 AT-237
5. Control valve assembly AT-343¬
6. A/T fluid temperature sensor AT-163 AT-187
OFF vehicle7. Brake band AT-419¬
8. Forward clutch AT-399¬
9. High clutch AT-394¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT - 111
Page 1298 of 2493

Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Races extremely fast or slips in
changing from ªD
4ºorªD3ºtoªD1º
when depressing pedal.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. Line pressure solenoid valve AT-174 AT-237
5. Control valve assembly AT-343¬
OFF vehicle6. Forward clutch AT-399¬
7. Forward one-way clutch AT-410¬
8. Low one-way clutch AT-350 AT-350
Vehicle will not run in any 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
OFF vehicle5. Oil pump AT-371¬
6. High clutch AT-394¬
7. Brake band AT-419¬
8. Low & reverse brake AT-406¬
9. Torque converter AT-354¬
10. Parking components AT-428¬
Transmission noise in ªDº, ª2º, ª1º
and ªRº positions.ON vehicle 1. Fluid level AT-78¬
OFF vehicle 2. Torque converter AT-354¬
Failure to change from ªD
3ºtoª22º
when changing lever into ª2º posi-
tion.
AT-320ON vehicle1. PNP switch adjustment AT-344¬
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. Shift solenoid valve B AT-146 AT-250
6. Control valve assembly AT-343¬
7. Control cable adjustment AT-344¬
OFF vehicle8. Brake band AT-419¬
9. Overrun clutch AT-399¬
Gear change from ª2
2ºtoª23ºin
ª2º position.ON vehicle 1. PNP switch adjustment AT-344¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-112
Page 1299 of 2493

Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Engine brake does not operate in
ª1º position.
AT-322ON vehicle1. PNP switch adjustment AT-344¬
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. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
5. Shift solenoid valve A AT-140 AT-244
6. Control valve assembly AT-343¬
7. Overrun clutch solenoid valve AT-152 AT-265
OFF vehicle8. Overrun clutch AT-399¬
9. Low & reverse brake AT-406¬
Gear change from ª1
1ºtoª12ºin
ª1º position.ON vehicle1. PNP switch adjustment AT-344¬
2. Control cable adjustment AT-344¬
Does not change from ª1
2ºtoª11º
in ª1º position.ON vehicle1. PNP switch adjustment AT-344¬
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. Control valve assembly AT-343¬
5. Overrun clutch solenoid valve AT-152 AT-265
OFF vehicle6. Overrun clutch AT-399¬
7. Low & reverse brake AT-406¬
Large shock changing from ª1
2ºto
ª1
1º in ª1º position.ON vehicle 1. Control valve assembly AT-343¬
OFF vehicle 2. Low & reverse brake AT-406¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-113
Page 1300 of 2493

Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Transmission overheats.ON vehicle1. Fluid level AT-78¬
2. Engine idling rpmEC-41, ªIdle
Speed and
Ignition Tim-
ingºEC-41, ªIdle
Speed and
Ignition Tim-
ingº
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¬
OFF vehicle7. Oil pump AT-371¬
8. Reverse clutch AT-390¬
9. High clutch AT-394¬
10. Brake band AT-419¬
11. Forward clutch AT-399¬
12. Overrun clutch AT-399¬
13. Low & reverse brake AT-406¬
14. Torque converter AT-354¬
ATF shoots out during operation.
White smoke emitted from exhaust
pipe during operation.ON vehicle 1. Fluid level AT-78¬
OFF vehicle2. Reverse clutch AT-390¬
3. High clutch AT-394¬
4. Brake band AT-419¬
5. Forward clutch AT-399¬
6. Overrun clutch AT-399¬
7. Low & reverse brake AT-406¬
Offensive smell at fluid charging
pipe.ON vehicle 1. Fluid level AT-78¬
OFF vehicle2. Torque converter AT-354¬
3. Oil pump AT-371¬
4. Reverse clutch AT-390¬
5. High clutch AT-394¬
6. Brake band AT-419¬
7. Forward clutch AT-399¬
8. Overrun clutch AT-399¬
9. Low & reverse brake AT-406¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-114
Page 1301 of 2493

Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Torque converter is not locked up.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. PNP switch adjustment AT-344¬
4. Engine speed signal AT-170 AT-198
5. A/T fluid temperature sensor AT-163 AT-187
6. Line pressure test AT-82¬
7. Torque converter clutch solenoid valve AT-157 AT-231
8. Control valve assembly AT-343¬
OFF vehicle 9. Torque converter AT-354¬
Torque converter clutch piston slip.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. Torque converter clutch solenoid valve AT-157 AT-231
5. Line pressure solenoid valve AT-174 AT-237
6. Control valve assembly AT-343¬
OFF vehicle 7. Torque converter AT-354¬
Lock-up point is extremely high or
low.
AT-315ON 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. Torque converter clutch solenoid valve AT-157 AT-231
4. Control valve assembly AT-343¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-115
Page 1302 of 2493

Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
A/T does not shift to ªD
4º when
driving with overdrive control
switch ªONº.ON vehicle1. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. PNP switch adjustment AT-344¬
3. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
4. Shift solenoid valve A AT-140 AT-244
5. Overrun clutch solenoid valve AT-152 AT-265
6. Control valve assembly AT-343¬
7. A/T fluid temperature sensor AT-163 AT-187
8. Line pressure test AT-82¬
OFF vehicle9. Brake band AT-419¬
10. Overrun clutch AT-399¬
Engine is stopped at ªRº, ªDº, ª2º
and ª1º positions.ON vehicle1. Fluid level AT-78¬
2. Torque converter clutch solenoid valve AT-157 AT-231
3. Shift solenoid valve A AT-140 AT-244
4. Shift solenoid valve B AT-146 AT-250
5. Control valve assembly AT-343¬
SAT216J
TCM Terminals and Reference ValueNJAT0030PREPARATIONNJAT0030S01+Measure voltage between each terminal and terminal 25 or 48
by following ªTCM INSPECTION TABLEº.
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-116
Page 1303 of 2493

TCM HARNESS CONNECTOR TERMINAL LAYOUTNJAT0030S02
SAT999J
TCM INSPECTION TABLENJAT0030S03(Data are reference values.)
Terminal
No.Wire color Item ConditionJudgement stan-
dard
1 R/WLine pressure
solenoid valve
When releasing accelerator pedal
after warming up engine.1.5 - 2.5V
When depressing accelerator pedal
fully after warming up engine.0.5V or less
2 P/BLine pressure
solenoid valve
(with dropping
resistor)When releasing accelerator pedal
after warming up engine.5 - 14V
When depressing accelerator pedal
fully after warming up engine.0.5V or less
3 GY/RTorque converter
clutch solenoid
valve
When A/T performs lock-up. 8 - 15V
When A/T does not perform lock-up. 1V or less
5 *2 Y/R Ð
ÐÐ
6 *2 Y/G Ð Ð Ð
7 *2 Y/B Ð Ð Ð
8*2 BR/W Ð Ð Ð
9*2 G/Y Ð Ð Ð
10 BR/R Power sourceWhen turning ignition switch to
ªONº.Battery voltage
When turning ignition switch to
ªOFFº.1V or less
11 L/WShift solenoid
valve A
When shift solenoid valve A oper-
ates.
(When driving in ªD
1ºorªD4º.)Battery voltage
When shift solenoid valve A does
not operate.
(When driving in ªD
2ºorªD3º.)1V or less
12 L/YShift solenoid
valve BWhen shift solenoid valve B oper-
ates.
(When driving in ªD
1ºorªD2º.)Battery voltage
When shift solenoid valve B does
not operate.
(When driving in ªD
3ºorªD4º.)1V or less
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
TCM Terminals and Reference Value (Cont'd)
AT-117
Page 1304 of 2493

Terminal
No.Wire color Item ConditionJudgement stan-
dard
13 G/RO/D OFF indica-
tor lamp
When setting overdrive control
switch in ªOFFº position.1V or less
When setting overdrive control
switch in ªONº position.Battery voltage
15 *2 PU Ð Ð Ð
16 Y/PUClosed throttle
position switch
(in throttle posi-
tion switch)When releasing accelerator pedal
after warming up engine.
+Refer to ªSELF-DIAGNOSTIC
PROCEDURE (Without
CONSULT-II)º, AT-42 Ð Except
for Euro-OBD.
+Refer to ªTCM SELF-DIAGNOS-
TIC PROCEDURE (NO
TOOLS)º, AT-61 Ð EURO-OBD.Battery voltage
When depressing accelerator pedal
after warming up engine.
+Refer to ªSELF-DIAGNOSTIC
PROCEDURE (Without
CONSULT-II)º, AT-42 Ð Except
for Euro-OBD.
+Refer to ªTCM SELF-DIAGNOS-
TIC PROCEDURE (NO
TOOLS)º, AT-61 Ð EURO-OBD.1V or less
17 LGWide open
throttle position
switch
(in throttle posi-
tion switch)When depressing accelerator pedal
more than half-way after warming
up engine.Battery voltage
When releasing accelerator pedal
after warming up engine.1V or less
19 BR/R Power source
Same as No. 10
20 L/BOverrun clutch
solenoid valve
When overrun clutch solenoid valve
operates.Battery voltage
When overrun clutch solenoid valve
does not operate.1V or less
22 OR/BOverdrive control
switch
When setting overdrive control
switch in ªONº positionBattery voltage
When setting overdrive control
switch in ªOFFº position1V or less
25 B Ground
ÐÐ
26 BR/YPNP switch ª1º
positionWhen setting selector lever to ª1º
position.Battery voltage
When setting selector lever to other
positions.1V or less
27 LPNP switch ª2º
positionWhen setting selector lever to ª2º
position.Battery voltage
When setting selector lever to other
positions.1V or less
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
TCM Terminals and Reference Value (Cont'd)
AT-118