FLUID NISSAN ALMERA N16 2003 Electronic Repair Manual

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-301
[EXC.F/EURO-OBD]
D
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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

AT-304
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
*1: A circuit tester cannot be used to test this item.
*2: These terminals are connected to the ECM.
*3: These terminals are connected to the data link connector.30 *
3G/B CONSULT- II (RX) — —
31 *
3GY/L CONSULT- II (TX) — —
32 *
2RThrottle position
sensor
(Power source)
or When turning ignition switch to “ON”. 4.5 - 5.5V
When turning ignition switch to
“OFF”.0V
34 W/GPNP switch “D”
position
and When setting selector lever to “D”
position.Battery voltage
When setting selector lever to other
positions.0V
35 G/WPNP switch “R”
positionWhen setting selector lever to “R”
position.Battery voltage
When setting selector lever to other
positions.0V
36 GPNP switch “N” or
“P” positionWhen setting selector lever to “N” or
“P” position.Battery voltage
When setting selector lever to other
positions.0V
39 *
2L/OREngine speed sig-
nal
and EC-XX, “ECM INSPECTION TABLE”.
40 L/BVehicle speed
sensorWhen moving vehicle at 2 to 3 km/h
(1 to 2 MPH) for 1 m (3 ft) or more.Voltage varies
between less
than 0V and
more than 4.5V
41*
2GYThrottle position
sensorWhen depressing accelerator pedal
slowly after warming up engine.
(Voltage rises gradually in response
to throttle position.)Fully-closed
throttle: 0.5V
Fully-open throt-
tle: 4V
42*
2BSensor
Ground—
——
47 BRA/T fluid tempera-
ture sensorWhen ATF temperature is 20°C
(68°F).1.5V
When ATF temperature is 80°C
(176°F).0.5V
48 B Ground — — 0V Te r m i -
nal No.Wire color Item ConditionJudgementstan-
dard(Approx.)

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-311
[EXC.F/EURO-OBD]
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AT
4. In “N” Position, Vehicle MovesECS007R3
SYMPTOM:
Vehicle moves forward or backward when selecting “N” position.
1.CHECK PNP SWITCH CIRCUIT
With CONSULT-II
Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage to PNP switch circuit?
Without CONSULT-II
Does self-diagnosis show damage to PNP switch circuit?
Ye s o r N o
Yes >> Check PNP switch circuit. Refer to AT- 3 3 3 , "21. TCM
Self-diagnosis Does Not Activate (PNP & Overdrive
Control Switches, and Throttle Position Sensor Circuit
Checks)" .
No >> GO TO 2
2.CHECK CONTROL CABLE
Check control cable. Refer to AT-408, "
Control Cable Adjustment" .
OK or NG
OK >> GO TO 3
NG >> Adjust control cable. Refer to AT- 4 0 8 , "
Control Cable
Adjustment" .
3.CHECK A/T FLUID LEVEL
Check A/T fluid level again.
OK or NG
OK >> GO TO 4
NG >> Refill ATF.
SCIA0706E
SAT023JB
SAT638A

AT-312
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
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 >> 1. Disassemble A/T.
2. Check the following items:
–Forward clutch assembly
–Overrun clutch assembly
–Reverse clutch assembly
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.
5. Large Shock. “N” → “R” PositionECS007R4
SYMPTOM:
There is large shock when changing from “N” to “R” position.
1. CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to A/T fluid temperature sensor,
line pressure solenoid valve or throttle position sensor circuit?
Ye s o r N o
Ye s > >●Check damaged circuit. Refer to the following items.
–AT- 3 8 8 , "LINE PRESSURE SOLENOID VALVE"
–THROTTLE POSITION SENSOR: AT- 3 5 2 , "ACCELE
RATOR PEDAL POSITION (APP) SENSOR"
–AT- 3 7 7 , "BATT/FLUID TEMP SEN (A/T FLUID TEMP
SENSOR CIRCUIT AND TCM POWER SOURCE)"
No >> GO TO 2
2. CHECK THROTTLE POSITION SENSOR*
*: This sensor means accelerator pedal position (APP) sensor.
Refer to AT- 3 5 2 , "
ACCELE RATOR PEDAL POSITION (APP) SEN-
SOR" .
OK or NG
OK >> GO TO 3
NG >> Repair or replace Accelerator pedal position(APP)sen-
sor.
SAT171B
SCIA0769E
MCIB9006E

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-313
[EXC.F/EURO-OBD]
D
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B
AT
3.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “D” position. Refer
to AT-265, "
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
4.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. Vehicle Does Not Creep Backward In “R” PositionECS007R5
SYMPTOM:
Vehicle does not creep backward when selecting “R” position.
1.CHECK A/T FLUID LEVEL
Check A/T fluid level again.
OK or NG
OK >> GO TO 2
NG >> Refill ATF.
SAT494G
SAT638A

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-315
[EXC.F/EURO-OBD]
D
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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

AT-316
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
7. Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position
ECS007R6
SYMPTOM:
Vehicle does not creep forward when selecting “D”, “2” or “1” position.
1. CHECK A/T FLUID LEVEL
Check A/T fluid level again.
OK or NG
OK >> GO TO 2
NG >> Refill ATF.
2. CHECK STALL TEST
Check stall revolution with selector lever in “D” position. Refer to AT-
262, "Sta ll Tes t" .
OK or NG
OK >> GO TO 3
NG >> GO TO 6
3. CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “D” 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
SAT638A
SAT493G
SAT494G

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-317
[EXC.F/EURO-OBD]
D
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F
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H
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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
–Forward clutch assembly
–Forward one-way clutch
–Low one-way clutch
–Low & reverse brake assembly
–Torque converter
OK or NG
OK >> GO TO 5
NG >> Repair or replace damaged parts.
8. Vehicle Cannot Be Started From D1ECS007R7
SYMPTOM:
Vehicle cannot be started from D
1 on Cruise test — Part 1.
1.CHECK SYMPTOM
Is 6. Vehicle Does Not Creep Backward In “R” Position OK?
Ye s o r N o
Ye s > > G O T O 2
No >> Go to 6. AT-313, "
6. Vehicle Does Not Creep Backward In “R” Position" .
SAT171B

AT-318
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
2. CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to vehicle speed sensor·A/T (rev-
olution sensor), shift solenoid valve A, B or vehicle speed sen-
sor·MTR after cruise test?
Ye s o r N o
Ye s > >●Check damaged circuit. Refer to the following items.
–AT- 3 4 3 , "VEHICLE SPEED SENSOR - A/T (REVO-
LUTION SENSOR)"
–AT- 3 5 7 , "SHIFT SOLENOID VALVE A"
–AT- 3 6 2 , "SHIFT SOLENOID VALVE B"
–AT- 3 4 8 , "DTC VEHICLE SPEED SENSOR MTR"
No >> GO TO 3
3. CHECK THROTTLE POSITION SENSOR*
*: This sensor means accelerator pedal position (APP) sensor.
Refer to AT- 3 5 2 , "
ACCELE RATOR PEDAL POSITION (APP) SEN-
SOR" .
OK or NG
OK >> GO TO 4
NG >> Repair or replace accelerator pedal position (APP) sen-
sor.
4. CHECK LINE PRESSURE
Check line pressure at stall point with selector lever in “D” position.
Refer to AT-265, "
Line Pressure Test" .
OK or NG
OK >> GO TO 5
NG >> GO TO 8
5. 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 6
NG >> GO TO 8
SCIA0770E
MCIB9006E
SAT494G
SAT171B