2003 NISSAN ALMERA N16 torque

AT-298
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Transmission overheats.ON vehicle1. Fluid levelAT-261, "
FLUID LEVEL
CHECK"
2. Engine idling rpmEC-722, "Idle Speed and
Ignition Timing"
3. Throttle position sensor (Accelerator
pedal position (APP) sensor)AT-352, "ACCELE
RATOR PEDAL POSI-
TION (APP) SENSOR"
4. Line pressure testAT-265, "Line Pressure
Te s t"
5. Line pressure solenoid valveAT-388, "
LINE PRES-
SURE SOLENOID
VA LV E"
6. Control valve assemblyAT-406, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle7. Oil pumpAT-435, "
Oil Pump"
8. Reverse clutchAT-455, "Reverse Clutch"
9. High clutchAT-459, "High Clutch"
10. Brake bandAT-483, "Band Servo Pis-
ton Assembly"
11. Forward clutchAT-464, "Forward and
Overrun Clutches"
12. Overrun clutchAT-464, "Forward and
Overrun Clutches"
13. Low & reverse brakeAT-470, "Low & Reverse
Brake"
14. Torque converterAT-417, "
Locations of
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
ATF shoots out during operation.
White smoke emitted from exhaust
pipe during operation.ON vehicle 1. Fluid levelAT-261, "
FLUID LEVEL
CHECK"
OFF vehicle2. Reverse clutchAT-455, "
Reverse Clutch"
3. High clutchAT-459, "High Clutch"
4. Brake bandAT-483, "Band Servo Pis-
ton Assembly"
5. Forward clutchAT-464, "Forward and
Overrun Clutches"
6. Overrun clutchAT-464, "Forward and
Overrun Clutches"
7. Low & reverse brakeAT-470, "Low & Reverse
Brake"
Symptom Condition Diagnostic Item Reference Page

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-299
[EXC.F/EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
Offensive smell at fluid charging pipe.ON vehicle 1. Fluid levelAT- 2 6 1 , "
FLUID LEVEL
CHECK"
OFF vehicle2. Torque converterAT- 4 1 7 , "
Locations of
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
3. Oil pumpAT- 4 3 5 , "Oil Pump"
4. Reverse clutchAT- 4 5 5 , "Reverse Clutch"
5. High clutchAT- 4 5 9 , "High Clutch"
6. Brake bandAT- 4 8 3 , "Band Servo Pis-
ton Assembly"
7. Forward clutchAT- 4 6 4 , "Forward and
Overrun Clutches"
8. Overrun clutchAT- 4 6 4 , "Forward and
Overrun Clutches"
9. Low & reverse brakeAT- 4 7 0 , "Low & Reverse
Brake"
Torque converter is not locked up.ON vehicle1. Throttle position sensor (Accelerator
pedal position (APP) sensor)AT- 3 5 2 , "
ACCELE
RATOR PEDAL POSI-
TION (APP) SENSOR"
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 4 3 , "
VEHICLE
SPEED SENSOR - A/T
(REVOLUTION SEN-
SOR)",AT-348, "DTC
VEHICLE SPEED SEN-
SOR MTR"
3. PNP switch adjustmentAT- 4 0 8 , "
Park/Neutral
Position (PNP) Switch
Adjustment"
4. Engine speed signalAT- 3 8 3 , "ENGINE SPEED
SIGNAL"
5. A/T fluid temp sen circ and TCM pow
sourAT- 3 7 7 , "
BATT/FLUID
TEMP SEN (A/T FLUID
TEMP SENSOR CIR-
CUIT AND TCM POWER
SOURCE)"
6. Line pressure testAT- 2 6 5 , "Line Pressure
Te s t"
7. Torque converter clutch solenoid valveAT- 3 7 2 , "
TORQUE CON-
VERTER CLUTCH
SOLENOID VALVE"
8. Control valve assemblyAT- 4 0 6 , "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle 9. Torque converterAT- 4 1 7 , "
Locations of
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
Symptom Condition Diagnostic Item Reference Page

AT-300
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Torque converter clutch piston slip.ON vehicle1. Fluid levelAT-261, "
FLUID LEVEL
CHECK"
2. Throttle position sensor (Accelerator
pedal position (APP) sensor)AT-352, "ACCELE
RATOR PEDAL POSI-
TION (APP) SENSOR"
3. Line pressure testAT-265, "Line Pressure
Te s t"
4. Torque converter clutch solenoid valveAT-372, "
TORQUE CON-
VERTER CLUTCH
SOLENOID VALVE"
5. Line pressure solenoid valveAT-388, "
LINE PRES-
SURE SOLENOID
VA LV E"
6. Control valve assemblyAT-406, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle 7. Torque converterAT-417, "
Locations of
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
Lock-up point is extremely high or low.
AT- 3 2 6 , "
12. A/T Does Not Perform
Lock-up"
ON vehicle1. Throttle position sensor (Accelerator
pedal position (APP) sensor) AdjustmentAT-352, "
ACCELE
RATOR PEDAL POSI-
TION (APP) SENSOR"
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-343, "
VEHICLE
SPEED SENSOR - A/T
(REVOLUTION SEN-
SOR)",AT-348, "DTC
VEHICLE SPEED SEN-
SOR MTR"
3. Torque converter clutch solenoid valveAT-372, "
TORQUE CON-
VERTER CLUTCH
SOLENOID VALVE"
4. Control valve assemblyAT-406, "
Control Valve
Assembly and Accumula-
tors"
Symptom Condition Diagnostic Item Reference Page

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-301
[EXC.F/EURO-OBD]
D
E
F
G
H
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J
K
L
MA
B
AT
A/T does not shift to “D4 ” when driv-
ing with overdrive control switch “ON”.ON vehicle1. Throttle position sensor (Accelerator
pedal position (APP) sensor)AT- 3 5 2 , "
ACCELE
RATOR PEDAL POSI-
TION (APP) SENSOR"
2. PNP switch adjustmentAT- 4 0 8 , "
Park/Neutral
Position (PNP) Switch
Adjustment"
3. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 4 3 , "
VEHICLE
SPEED SENSOR - A/T
(REVOLUTION SEN-
SOR)",AT-348, "DTC
VEHICLE SPEED SEN-
SOR MTR"
4. Shift solenoid valve AAT- 3 5 7 , "SHIFT SOLE-
NOID VALVE A"
5. Overrun clutch solenoid valveAT- 3 6 7 , "
OVERRUN
CLUTCH SOLENOID
VA LV E"
6. Control valve assemblyAT- 4 0 6 , "
Control Valve
Assembly and Accumula-
tors"
7. A/T fluid temp sen circ and TCM pow
sourAT- 3 7 7 , "
BATT/FLUID
TEMP SEN (A/T FLUID
TEMP SENSOR CIR-
CUIT AND TCM POWER
SOURCE)"
8. Line pressure testAT- 2 6 5 , "Line Pressure
Te s t"
OFF vehicle9. Brake bandAT- 4 8 3 , "
Band Servo Pis-
ton Assembly"
10. Overrun clutchAT- 4 6 4 , "Forward and
Overrun Clutches"
Engine is stopped at “R”, “D”, “2” and
“1” positions.ON vehicle1. Fluid levelAT- 2 6 1 , "
FLUID LEVEL
CHECK"
2. Torque converter clutch solenoid valveAT- 3 7 2 , "
TORQUE CON-
VERTER CLUTCH
SOLENOID VALVE"
3. Shift solenoid valve AAT- 3 5 7 , "SHIFT SOLE-
NOID VALVE A"
4. Shift solenoid valve BAT- 3 6 2 , "SHIFT SOLE-
NOID VALVE B"
5. Control valve assemblyAT- 4 0 6 , "
Control Valve
Assembly and Accumula-
tors"
Symptom Condition Diagnostic Item Reference Page

AT-302
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
TCM Terminals and Reference ValueECS007QW
PREPARATION
●Measure voltage between each terminal and terminal 25 or 48
by following “TCM INSPECTION TABLE”.
TCM HARNESS CONNECTOR TERMINAL LAYOUT
TCM INSPECTION TABLE
(Data are reference values.)
Monitor item Condition Specification (Approximately)
A/T fluid temperature sensorCold [20°C (68°F)]
↓
Hot [80°C (176°F)]1.5V
↓
0.5V2.5kΩ
↓
0.3kΩ
Line pressure solenoid valve dutySmall throttle opening
(Low line pressure)
↓
Large throttle opening
(High line pressure)Approximately 24%
↓
Approximately 95%
Torque converter clutch solenoid valve dutyLock-up “OFF”
↓
Lock-up “ON”Approximately 4%
↓
Approximately 94%
Throttle position sensor (Accelerator pedal
position (APP) sensor)Fully-closed throttle Approximately 0.5V
Fully-open throttle Approximately 4V
SAT216J
SAT999J
Te r m i -
nal No.Wire color Item ConditionJudgementstan-
dard(Approx.)
1R/WLine pressure
solenoid valveWhen releasing accelerator pedal
after warming up engine.1.5 - 3.0V
When depressing accelerator pedal
fully after warming up engine.0V
2P/BLine pressure
solenoid valve
(with dropping
resistor)When releasing accelerator pedal
after warming up engine.4 - 14V
When depressing accelerator pedal
fully after warming up engine.0V

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-303
[EXC.F/EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
3GY/RTorque converter
clutch solenoid
valveWhen A/T performs lock-up. 8 - 15V
When A/T does not perform lock-up. 0V
5*
2LCAN (H) — — —
6*
2RCAN (L) — — —
10 BR/R Power source
or When turning ignition switch to “ON”. Battery voltage
When turning ignition switch to
“OFF”.0V
11 L / WShift solenoid
valve AWhen shift solenoid valve A oper-
ates.
(When driving in “D
1 ” or “D4 ”.)Battery voltage
When shift solenoid valve A does not
operate.
(When driving in “D
2 ” or “D3 ”.)0V
12 L/YShift solenoid
valve BWhen shift solenoid valve B oper-
ates.
(When driving in “D
1 ” or “D2 ”.)Battery voltage
When shift solenoid valve B does not
operate.
(When driving in “D
3 ” or “D4 ”.)0V
19 BR/R Power source
or Same as No. 10
20 L/BOverrun clutch
solenoid valveWhen overrun clutch solenoid valve
operates.Battery voltage
When overrun clutch solenoid valve
does not operate.0V
25 B Ground — — 0V
26 BR/YPNP switch “1”
position
and When setting selector lever to “1”
position.Battery voltage
When setting selector lever to other
positions.0V
27 LPNP switch “2”
positionWhen setting selector lever to “2”
position.Battery voltage
When setting selector lever to other
positions.0V
28 R/BPower source
(Memory back-up)
or When turning ignition switch to
“OFF”.Battery voltage
When turning ignition switch to “ON”. Battery voltage
29 W Revolution sensorWhen moving at 20 km/h (12 MPH),
use the CONSULT-II pulse frequency
measuring function.*
1
CAUTION:
Connect the diagnosis data link
cable to the vehicle diagnosis
connector.150 Hz
When vehicle parks.Under 1.3V or
over 4.5V Termi-
nal No.Wire color Item ConditionJudgementstan-
dard(Approx.)

AT-314
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
2. CHECK STALL TEST
Check stall revolution with selector lever in “1” and “R” positions.
Refer to AT-262, "
Stall Test" .
OK or NG
OK >> GO TO 3
OK in “1” position, NG in “R” position>>1.Remove control valve
assembly. Refer to AT- 4 0 6 , "
Control Valve Assembly
and Accumulators" .
2. Check the following items:
–Valves to control line pressure (Pressure regulator
valve, pressure modifier valve, pilot valve and pilot fil-
ter)
–Line pressure solenoid valve (AT- 3 8 8 , "LINE PRES-
SURE SOLENOID VALVE" )
3. Disassemble A/T.
4. Check the following items:
–Oil pump assembly
–Torque converter
–Reverse clutch assembly
–High clutch assembly
–Low & reverse brake assembly
–Low one-way clutch
NG in both “1” and “R” positions>>GO TO 6
3. CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “R” position. Refer
to AT- 2 6 5 , "
Line Pressure Test" .
OK or NG
OK >> GO TO 4
NG >> 1. Remove control valve assembly. Refer to AT- 4 0 6 ,
"Control Valve Assembly and Accumulators" .
2. Check the following items:
–Valves to control line pressure (Pressure regulator
valve, pressure modifier valve, pilot valve and pilot fil-
ter)
–Line pressure solenoid valve (AT- 3 8 8 , "LINE PRES-
SURE SOLENOID VALVE" )
3. Disassemble A/T.
4. Check the following item:
–Oil pump assembly
SAT493G
SAT494G

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-315
[EXC.F/EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
4.CHECK A/T FLUID CONDITION
1. Remove oil pan, refer to AT- 4 0 6 , "
REMOVAL" .
2. Check A/T fluid condition.
OK or NG
OK >> GO TO 5
NG >> GO TO 6
5.CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
6.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT- 4 0 6 , "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter)
–Line pressure solenoid valve (AT-388, "LINE PRESSURE SOLENOID VALVE" )
3. Disassemble A/T.
4. Check the following items:
–Oil pump assembly
–Torque converter
–Reverse clutch assembly
–High clutch assembly
–Low & reverse brake assembly
–Low one-way clutch
OK or NG
OK >> GO TO 5
NG >> Repair or replace damaged parts.
SAT171B