2003 NISSAN TEANA torque

TROUBLE DIAGNOSIS
AT-55
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B
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Symptom ChartBCS0010B
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 InoperativeTorque converter
is not locked up.ON vehicle1. Accelerator pedal position sensor
EC-272
*1, EC-652*2
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 8 0, AT- 8 6
3. PNP switchAT- 1 6 1
4. Engine speed signalAT- 11 6
5. A/T fluid temperature sensorAT- 11 0
6. Line pressure testAT- 4 6
7. Torque converter clutch solenoid valveAT- 1 0 5
8. Control valve assemblyAT- 2 2 5
OFF vehicle 9. Torque converterAT- 2 5 5
Torque converter
clutch piston slip.ON vehicle1. A/T fluid levelAT- 1 4
2. Accelerator pedal position sensor
EC-272*1, EC-652*2
3. Line pressure testAT- 4 6
4. Torque converter clutch solenoid valveAT- 1 0 5
5. Line pressure solenoid valveAT- 1 2 6
6. Control valve assemblyAT- 2 2 5
OFF vehicle 7. Torque converterAT- 2 5 5
Lock-up point is
extremely high or
low.ON vehicle1. Accelerator pedal position sensor
EC-272
*1, EC-652*2
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 8 0, AT- 8 6
3. Torque converter clutch solenoid valveAT- 1 0 5
4. Control valve assemblyAT- 2 2 5
Shift ShockSharp shock in
shifting from “N”
to “D” position.ON vehicle1. Engine idle speed
EC-45
*1, EC-387*2
2. Accelerator pedal position sensor
EC-272*1, EC-652*2
3. Line pressure testAT- 4 6
4. A/T fluid temperature sensorAT- 11 0
5. Engine speed signalAT- 11 6
6. Line pressure solenoid valveAT- 1 2 6
7. Control valve assemblyAT- 2 2 5
8. N-D accumulatorAT- 2 2 5
OFF vehicle 9. Forward clutchAT- 3 0 7
Too sharp a
shock in change
from D
1 to D2 .ON vehicle1. Accelerator pedal position sensor
EC-272
*1, EC-652*2
2. Line pressure testAT- 4 6
3. Accumulator servo releaseAT- 2 2 5
4. Control valve assemblyAT- 2 2 5
5. A/T fluid temperature sensorAT- 11 0
OFF vehicle 6. Brake bandAT- 3 2 9

TROUBLE DIAGNOSIS
AT-59
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Slips/Will Not
EngageVehicle will not
run in “R” position
(but runs in “D”,
“3”, “2” and “1”
positions). Clutch
slips.
Very poor accel-
eration.ON vehicle1. A/T positionAT- 2 1 5
2. Stall testAT- 4 3
3. Line pressure testAT- 4 6
4. Line pressure solenoid valveAT- 1 2 6
5. Control valve assemblyAT- 2 2 5
OFF vehicle6. Reverse clutchAT- 2 9 6
7. High clutchAT- 3 0 1
8. Forward clutchAT- 3 0 7
9. Overrun clutchAT- 3 0 7
10. Low & reverse brakeAT- 3 1 5
Vehicle will not
run in “D”, “3” and
“2” positions (but
runs in “1” and
“R” positions).ON vehicle 1. A/T positionAT- 2 1 5
OFF vehicle 2. Low one-way clutchAT- 2 5 5
Vehicle will not
run in “D”, “3”, “2”
and “1” positions
(but runs in “R”
position). Clutch
slips.
Very poor accel-
eration.ON vehicle1. A/T fluid levelAT- 1 4
2. Stall testAT- 4 3
3. Line pressure testAT- 4 6
4. Line pressure solenoid valveAT- 1 2 6
5. Control valve assemblyAT- 2 2 5
6. N-D accumulatorAT- 2 2 5
OFF vehicle7. Reverse clutchAT- 2 9 6
8. High clutchAT- 3 0 1
9. Forward clutchAT- 3 0 7
10. Forward one-way clutchAT- 3 1 9
11. Low one-way clutchAT- 2 5 5
Clutches or
brakes slip some-
what in starting.ON vehicle1. A/T fluid levelAT- 1 4
2. A/T positionAT- 2 1 5
3. Accelerator pedal position sensor
EC-272*1, EC-652*2
4. Line pressure testAT- 4 6
5. Line pressure solenoid valveAT- 1 2 6
6. Control valve assemblyAT- 2 2 5
7. N-D accumulatorAT- 2 2 5
OFF vehicle8. Forward clutchAT- 3 0 7
9. Reverse clutchAT- 2 9 6
10. Low & reverse brakeAT- 3 1 5
11. Oil pumpAT- 2 7 5
12. Torque converterAT- 2 5 5
Items Symptom Condition Diagnostic item Reference page

AT-60
TROUBLE DIAGNOSIS

Slips/Will Not
EngageNo creep at all.
AT- 1 7 9
, AT-181
ON vehicle1. A/T fluid levelAT- 1 42. Line pressure testAT- 4 6
3. Control valve assemblyAT-225
OFF vehicle4. Forward clutchAT-3075. Oil pumpAT-275
6. Torque converterAT-255
Almost no shock
or clutches slip-
ping in change
from D
1 to D2 .ON vehicle1. A/T fluid levelAT- 1 4
2. Accelerator pedal position sensor
EC-272*1, EC-652*2
3. Line pressure testAT- 4 6
4. Accumulator servo releaseAT-225
5. Control valve assemblyAT-225
OFF vehicle 6. Brake bandAT-329
Almost no shock
or slipping in
change from D
2
to D
3 .ON vehicle1. A/T fluid levelAT- 1 4
2. Accelerator pedal position sensor
EC-272*1, EC-652*2
3. Line pressure testAT- 4 6
4. Control valve assemblyAT-225
OFF vehicle5. High clutchAT-3016. Forward clutchAT-307
Almost no shock
or slipping in
change from D
3
to D
4 .ON vehicle1. A/T fluid levelAT- 1 4
2. Accelerator pedal position sensor
EC-272*1, EC-652*2
3. Line pressure testAT- 4 6
4. Control valve assemblyAT-225
OFF vehicle 5. Brake bandAT-329
Races extremely
fast or slips in
changing from D
4
to D
3 when
depressing pedal.ON vehicle1. A/T fluid levelAT- 1 4
2. Accelerator pedal position sensor
EC-272*1, EC-652*2
3. Line pressure testAT- 4 6
4. Line pressure solenoid valveAT-126
5. Shift solenoid valve AAT- 9 0
6. Control valve assemblyAT-225
OFF vehicle7. Brake bandAT-3298. Forward clutchAT-307
Races extremely
fast or slips in
changing from D
4
to D
2 when
depressing pedal.ON vehicle1. A/T fluid levelAT- 1 4
2. Accelerator pedal position sensor
EC-272*1, EC-652*2
3. Line pressure testAT- 4 6
4. Line pressure solenoid valveAT-126
5. Shift solenoid valve AAT- 9 0
6. Shift solenoid valve BAT- 9 5
7. Control valve assemblyAT-225
OFF vehicle8. Brake bandAT-3299. Forward clutchAT-307
Items Symptom Condition Diagnostic item Reference page

TROUBLE DIAGNOSIS
AT-61
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Slips/Will Not
EngageRaces extremely
fast or slips in
changing from D
3
to D
2 when
depressing pedal. ON vehicle1. A/T fluid levelAT- 1 4
2. Accelerator pedal position sensor
EC-272*1, EC-652*2
3. Line pressure testAT- 4 6
4. Line pressure solenoid valveAT- 1 2 6
5. Shift solenoid valve BAT- 9 5
6. Control valve assemblyAT- 2 2 5
OFF vehicle7. Brake bandAT- 3 2 98. High clutchAT- 3 0 1
Races extremely
fast or slips in
changing from D
4
or D
3 to D 1
when depressing
pedal.ON vehicle1. A/T fluid levelAT- 1 4
2. Accelerator pedal position sensor
EC-272*1, EC-652*2
3. Line pressure testAT- 4 6
4. Line pressure solenoid valveAT- 1 2 6
5. Shift solenoid valve AAT- 9 0
6. Shift solenoid valve BAT- 9 5
7. Control valve assemblyAT- 2 2 5
OFF vehicle8. Forward clutchAT- 3 0 79. Forward one-way clutchAT- 3 1 9
10. Low one-way clutchAT- 2 5 5
Vehicle will not
run in any posi-
tion.ON vehicle1. A/T fluid levelAT- 1 4
2. A/T positionAT- 2 1 5
3. Line pressure testAT- 4 6
4. Line pressure solenoid valveAT- 1 2 6
OFF vehicle5. Oil pumpAT- 2 7 5
6. High clutchAT- 3 0 1
7. Brake bandAT- 3 2 9
8. Low & reverse brakeAT- 3 1 5
9. Torque converterAT- 2 5 5
10. Parking componentsAT- 2 4 6
OthersEngine cannot be
started in “P” and
“N” positions.
AT-175
ON vehicle1. Ignition switch and starterPG-3
, SC-14 .
2. A/T positionAT- 2 1 5
3. PNP switchAT- 1 6 1
Engine starts in
positions other
than “P” and “N”.ON vehicle1. A/T positionAT- 2 1 5
2. PNP switchAT- 1 6 1
Transaxle noise
in “P” and “N”
positions.ON vehicle1. A/T fluid levelAT- 1 4
2. Line pressure testAT- 4 6
3. Accelerator pedal position sensor
EC-272*1, EC-652*2
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 8 0, AT- 8 6
OFF vehicle5. Oil pumpAT- 2 7 56. Torque converterAT- 2 5 5
Items Symptom Condition Diagnostic item Reference page

AT-62
TROUBLE DIAGNOSIS

OthersVehicle moves
when changing
into “P” position
or parking gear
does not disen-
gage when
shifted out of “P”
position.ON vehicle 1. A/T positionAT-215
OFF vehicle 2. Parking componentsAT-246
Vehicle runs in
“N” position.
AT- 1 7 6
ON vehicle1. PNP switchAT-1612. A/T positionAT-215
OFF vehicle3. Forward clutchAT-3074. Reverse clutchAT-296
5. Overrun clutchAT-307
Vehicle braked
when shifting into
“R” position.ON vehicle1. A/T fluid levelAT- 1 4
2. A/T positionAT-215
3. Line pressure testAT- 4 6
4. Line pressure solenoid valveAT-126
5. Control valve assemblyAT-225
OFF vehicle6. High clutchAT-3017. Brake band AT-329
8. Forward clutchAT-307
9. Overrun clutchAT-307
Excessive creep. ON vehicle 1. Engine idle speed
EC-45*1, EC-387*2
Engine stops
when shifting
lever into “R”, “D”,
“3”, “2” and “1”.ON vehicle1. Engine idle speed
EC-45
*1, EC-387*2
2. A/T fluid levelAT- 1 4
3. Torque converter clutch solenoid valveAT-105
4. Control valve assemblyAT-225
OFF vehicle 5. Torque converterAT-255
Vehicle braked by
gear change from
D
1 to D2 .ON vehicle 1. A/T fluid levelAT- 1 4OFF vehicle2. Reverse clutchAT-2963. Low & reverse brakeAT-315
4. High clutchAT-301
5. Low one-way clutchAT-255
Vehicle braked by
gear change from
D
2 to D3 .ON vehicle 1. A/T fluid levelAT- 1 4OFF vehicle 2. Brake bandAT-329
Vehicle braked by
gear change from
D
3 to D4 .ON vehicle 1. A/T fluid levelAT- 1 4OFF vehicle2. Overrun clutchAT-3073. Forward one-way clutchAT-319
4. Reverse clutchAT-296
Items Symptom Condition Diagnostic item Reference page

TROUBLE DIAGNOSIS
AT-63
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OthersMaximum speed
not attained.
Acceleration
poor.ON vehicle1. A/T fluid levelAT- 1 4
2. PNP switchAT- 1 6 1
3. 3rd position switchAT- 1 6 1
4. Accelerator pedal position sensor
EC-272*1, EC-652*2
5. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 8 0, AT- 8 6
6. Shift solenoid valve AAT- 9 0
7. Shift solenoid valve BAT- 9 5
8. Control valve assemblyAT- 2 2 5
OFF vehicle9. Reverse clutchAT- 2 9 6
10. High clutchAT- 3 0 1
11. Brake bandAT- 3 2 9
12. Low & reverse brakeAT- 3 1 5
13. Oil pumpAT- 2 7 5
14. Torque converterAT- 2 5 5
Transaxle noise
in “D”, “3”, “2”, “1”
and “R” positions.ON vehicle 1. A/T fluid levelAT- 1 4
OFF vehicle 2. Torque converterAT- 2 5 5
Engine brake
does not operate
in “1” position.ON vehicle1. PNP switchAT- 1 6 1
2. A/T positionAT- 2 1 5
3. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 8 0, AT- 8 6
4. Control valve assemblyAT- 2 2 5
5. Overrun clutch solenoid valveAT- 1 0 0
OFF vehicle6. Overrun clutchAT- 3 0 77. Low & reverse brakeAT- 3 1 5
Transaxle over-
heats.ON vehicle1. A/T fluid levelAT- 1 4
2. Engine idle speed
EC-45*1, EC-387*2
3. Accelerator pedal position sensor
EC-272*1, EC-652*2
4. Line pressure testAT- 4 6
5. Line pressure solenoid valveAT- 1 2 6
6. Control valve assemblyAT- 2 2 5
OFF vehicle7. Oil pumpAT- 2 7 5
8. Reverse clutchAT- 2 9 6
9. High clutchAT- 3 0 1
10. Brake bandAT- 3 2 9
11. Forward clutchAT- 3 0 7
12. Overrun clutchAT- 3 0 7
13. Low & reverse brakeAT- 3 1 5
14. Torque converterAT- 2 5 5
Items Symptom Condition Diagnostic item Reference page

AT-64
TROUBLE DIAGNOSIS

*1: QR engine
*2: VQ engine
TCM Terminals and Reference ValueBCS0010C
TCM CONNECTOR TERMINAL LAYOUT
TCM INSPECTION TABLE
Data are reference value and are measured between each terminal and ground.
OthersATF shoots out
during operation.
White smoke
emitted from
exhaust pipe dur-
ing operation.ON vehicle 1. A/T fluid levelAT- 1 4
OFF vehicle2. Reverse clutchAT-296
3. High clutchAT-301
4. Brake bandAT-329
5. Forward clutchAT-307
6. Overrun clutchAT-307
7. Low & reverse brakeAT-315
Offensive smell at
fluid charging
pipe.ON vehicle 1. A/T fluid levelAT- 1 4
OFF vehicle2. Torque converterAT-255
3. Oil pumpAT-275
4. Reverse clutchAT-296
5. High clutchAT-301
6. Brake bandAT-329
7. Forward clutchAT-307
8. Overrun clutchAT-307
9. Low & reverse brakeAT-315
Items Symptom Condition Diagnostic item Reference page
SCIA0495E
Terminal Wire color Item ConditionJudgement stan-
dard (Approx.)
1 G/RLine pressure sole-
noid valveWhen releasing accelerator pedal
after warming up engine.1.5 - 3.0 V
When depressing accelerator pedal
fully after warming up engine.0V
2W/BLine pressure sole-
noid valve (with drop-
ping resistor)When releasing accelerator pedal
after warming up engine.4 - 14 V
When depressing accelerator pedal
fully after warming up engine.0V
3 G/BTorque converter
clutch solenoid valveWhen A/T performs lock-up. 8 - 15 V
When A/T does not perform lock-up. 0 V
5 L CAN-H — —
6P CAN-L — —

TROUBLE DIAGNOSIS
AT-71
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OVERDRIVE SW (ON/OFF) X —3rd position switch (Signal input with
CAN communication.)
PN POSI SW (ON/OFF) X —
R POSITION SW (ON/OFF) X —
D POSITION SW (ON/OFF) X —
2 POSITION SW (ON/OFF) X —
1 POSITION SW (ON/OFF) X —
ASCD-CRUISE (ON/OFF) X —
Signal input with CAN communication.
ASCD-OD CUT (ON/OFF) X —
KICKDOWN SW (ON/OFF) X —
Not mounted but displayed.
POWERSHIFT SW (ON/OFF) X —
CLOSED THL/SW (ON/OFF) X —
Signal input with CAN communication.
W/O THRL/P-SW (ON/OFF) X —
*SHIFT S/V A (ON/OFF) — —
Displays status of check signal (reinput
signal) for TCM control signal output.
Remains unchanged when solenoid
valves are open or shorted. *SHIFT S/V B (ON/OFF) — —
*OVERRUN/C S/V (ON/OFF) — —
HOLD SW (ON/OFF) X — Not mounted but displayed.
BRAKE SW (ON/OFF) X —Stop lamp switch (Signal input with CAN
communication.)
GEAR — XGear position recognized by the TCM
updated after gear-shifting
SLCT LVR POSI — XSelector lever position is recognized by
the TCM.
For fail-safe operation, the specific value
used for control is displayed.
VEHICLE SPEED (km/h) — X Vehicle speed recognized by the TCM.
THROTTLE POSI (0.0/8) — XDegree of opening for accelerator recog-
nized by the TCM
For fail-safe operation, the specific value
used for control is displayed.
LINE PRES DTY (%) — X
TCC S/V DUTY (%) — X
SHIFT S/V A (ON/OFF) — X
SHIFT S/V B (ON/OFF) — X
OVERRUN/C S/V (ON/OFF) — X
SELF-D DP LMP (ON/OFF) — X
TC SLIP RATIO (0.000) — —
TC SLIP SPEED (rpm) — —Difference between engine speed and
torque converter input shaft speed
Voltage (V) — —Displays the value measured by the volt-
age probe. Monitor item (Unit)SELECT MONITOR ITEM
Remarks
TCM INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION FROM
MENU