FLUID NISSAN ALMERA N16 2003 Electronic Repair Manual

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-227
[EURO-OBD]
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7.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT- 4 0 6 , "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Shift valve B
–Shift solenoid valve B (AT- 1 7 6 , "DTC P0755 SHIFT SOLENOID VALVE B" )
–Pilot valve
–Pilot filter
3. Disassemble A/T.
4. Check the following items:
–Servo piston assembly
–High clutch assembly
–Oil pump assembly
OK or NG
OK >> GO TO 6
NG >> Repair or replace damaged parts.
11. A/T Does Not Shift: D3→ D4ECS007QC
SYMPTOM:
●A/T does not shift from D3 to D4 at the specified speed.
●A/T must be warm before D3 to D4 shift will occur.
1.CHECK SYMPTOM
Are 7. Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position and 8. Vehicle Cannot Be Started From D
1
OK?
Ye s o r N o
Ye s > > G O T O 2
No >> Go to AT- 2 1 9 , "
7. Vehicle Does Not Creep Forward In “D”,“2” Or “1” Position" , AT- 2 2 1 , "8. Vehi-
cle Cannot Be Started From D1" .
2.CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis, after cruise test, show damage to any of the following circuits?
●PNP switch
●Overdrive control switch
●A/T fluid temperature sensor
●Vehicle speed sensor·A/T (revolution sensor)
●Shift solenoid valve A or B
●Vehicle speed sensor·MTR
Ye s o r N o
Ye s > >●Check damaged circuit. Refer to the following items.
EURO-OBD
–AT- 1 2 3 , "DTC P0720 VEHICLE SPEED SENSOR A/T
(REVOLUTION SENSOR)"
–AT-171, "DTC P0750 SHIFT SOLENOID VALVE A"
–AT-176, "DTC P0755 SHIFT SOLENOID VALVE B"
–AT- 1 9 5 , "DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)"
–AT-201, "DTC VEHICLE SPEED SENSOR MTR"
–AT- 2 3 7 , "21. TCM Self-diagnosis Does Not Activate (PNP & Overdrive Control Switches, and
Throttle Position Sensor Circuit Checks)"
No >> GO TO 3
SCIA0771E

AT-228
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
3. CHECK THROTTLE POSITION SENSOR*
*: This sensor means accelerator pedal position (APP) sensor.
Refer to AT- 1 8 1 , "
DTC P1705 ACCELERATOR PEDAL POSITION
(APP) SENSOR" .
OK or NG
OK >> GO TO 4
NG >> Repair or replace throttle position sensor.
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 7
5. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT- 4 0 6 , "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Shift valve B
–Overrun clutch control valve
–Shift solenoid valve B
–Pilot valve
–Pilot filter
OK or NG
OK >> GO TO 6
NG >> Repair or replace damaged parts.
6. 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.
MCIB9006E
SAT171B

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-231
[EURO-OBD]
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13. A/T Does Not Hold Lock-up ConditionECS007QE
SYMPTOM:
A/T does not hold lock-up condition for more than 30 seconds.
1.CHECK DIAGNOSTIC RESULTS
Does self-diagnosis show damage to engine speed signal circuit
after cruise test?
Ye s o r N o
Yes >> Check engine speed signal circuit. Refer to AT- 1 2 9 ,
"DTC P0725 ENGINE SPEED SIGNAL" .
No >> GO TO 2
2.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 3
NG >> GO TO 5
3.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT- 4 0 6 , "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Torque converter clutch control valve
–Pilot valve
–Pilot filter
OK or NG
OK >> GO TO 4
NG >> Repair or replace damaged parts.
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.
SCIA0773E
SAT171B

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-233
[EURO-OBD]
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15. Engine Speed Does Not Return To Idle (Light Braking D4→ D3 )ECS007QG
SYMPTOM:
●Engine speed does not smoothly return to idle when A/T shifts from D4 to D3 .
●Vehicle does not decelerate by engine brake when turning overdrive control switch OFF.
●Vehicle does not decelerate by engine brake when shifting A/T from “D” to “2” position.
1.CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to overrun clutch solenoid valve
circuit after cruise test?
Ye s o r N O
Yes >> Check overrun clutch solenoid valve circuit. Refer to AT-
187, "DTC P1760 OVERRUN CLUTCH SOLENOID
VA LV E" .
No >> GO TO 2
2.CHECK THROTTLE POSITION SENSOR*
*: This sensor means accelerator pedal position (APP) sensor.
Refer to AT- 1 8 1 , "
DTC P1705 ACCELERATOR PEDAL POSITION
(APP) SENSOR" .
OK or NG
OK >> GO TO 3
NG >> Repair or replace accelerator pedal position (APP) sen-
sor. (AT- 1 8 1 , "
DTC P1705 ACCELERATOR PEDAL
POSITION (APP) SENSOR" )
3.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 4
NG >> GO TO 6
SCIA0774E
MCIB9006E
SAT171B

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-245
[EXC.F/EURO-OBD]
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SELF-DIAGNOSTIC RESULT TEST MODE
Detected items
(Screen terms for CONSULT-II, “SELF
DIAGNOSIS” test mode)
Malfunction is detected when...TCM self-diagnosis
Remarks Available by O/D OFF
indicator lamp or “A/T”
on CONSULT-II “A/T” “ENGINE”
Revolution sensor
●TCM does not receive the proper
voltage signal from the sensor.X—
VHCL SPEED SEN·A/TVEH SPD SEN/
CIR AT
Vehicle speed sensor (Meter)
●TCM does not receive the proper
voltage signal from the sensor.X—
VHCL SPEED
SEN·MTR—
Shift solenoid valve A
●TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.X
SHIFT SOLENOID/V A SFT SOL A/CIRC
Shift solenoid valve B
●TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.X
SHIFT SOLENOID/V B SFT SOL B/CIRC
Overrun clutch solenoid valve
●TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.X
OVERRUN CLUTCH S/
VO/R CLUCH SOL/
CIRC
T/C clutch solenoid valve
●TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.X
T/C CLUTCH SOL/VTCC SOLENOID/
CIRC
Line pressure solenoid valve
●TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.X
LINE PRESSURE S/VL/PRESS SOL/
CIRC
Throttle position sensor
(Accelerator Pedal Position (APP) sensor)
●TCM receives an excessively low
or high voltage from the sensor.X
THROTTLE POSI SEN TP SEN/CIRC A/T
Engine speed signal
●TCM does not receive the proper
voltage signal from the ECM.X
ENGINE SPEED SIG
A/T fluid temperature sensor
●TCM receives an excessively low
or high voltage from the sensor.XTo be displayed in
case of abnormality
and when no record-
ing is made. BATT/FLUID TEMP
SENATF TEMP SEN/
CIRC
Engine control
●The ECM-A/T communication line
is open or shorted.X
A/T COMM LINE
*1—
TCM (RAM)
●TCM memory (RAM) is malfunc-
tioning—Refer to AT- 3 0 2 , "TCM Terminals and
Reference Value"CONTROL UNIT
(RAM)—
TCM (ROM)
●TCM memory (ROM) is malfunc-
tioning—Refer to AT- 3 0 2 , "TCM Terminals and
Reference Value"CONTROL UNIT
(ROM)—
TCM (EEP ROM)
●TCM memory (EEP ROM) is mal-
functioning.—Refer to AT- 3 0 2 , "TCM Terminals and
Reference Value"CONT UNIT(EEP
ROM)—

AT-246
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
X: Applicable
−: Not applicable
*1: A/T COMM LINE means CAN COMM LINE in this model.
DATA MONITOR MODE (A/T)
Initial start●This is not a malfunction message
(Whenever shutting off a power
supply to the TCM, this message
appears on the screen.)X
INITIAL START —
No failure
(NO SELF DIAGNOSTIC FAILURE INDI-
CATED FURTHER TESTING MAY BE
REQUIRED**)
●No failure has been detected. X Detected items
(Screen terms for CONSULT-II, “SELF
DIAGNOSIS” test mode)
Malfunction is detected when...TCM self-diagnosis
Remarks Available by O/D OFF
indicator lamp or “A/T”
on CONSULT-II “A/T” “ENGINE”
Item Displaymove to center Monitor items
Description Remarks
TCM
Input
signalsCAN
comm
sig-
nalsMain
signalsSelection
from
menu
Vehicle speed
sensor 1 (A/T)
(Revolution sen-
sor)VHCL/S SE·A/T
[km/h] or [mph]
X——
●Vehicle speed com-
puted from signal of
revolution sensor is
displayed.When racing engine in N
or P with vehicle station-
ary, CONSULT-II data
may not indicate 0 km/h
(0 mph).
Vehicle speed
sensor 2
(Meter)VHCL/S
SE·MTR
[km/h] or [mph]
X——
●Vehicle speed com-
puted from signal of
vehicle speed sensor is
displayed.Vehicle speed display
may not be accurate
under approx. 10 km/h
(6 mph). It may not indi-
cate 0 km/h (0 mph)
when vehicle is station-
ary.
Throttle position
sensorTHRTL POS
SEN
[V]X——
●Throttle position sensor
signal voltage is dis-
played.
A/T fluid tempera-
ture sensorFLUID TEMP SE
[V]
X——
●A/T fluid temperature
sensor signal voltage is
displayed.
●Signal voltage lowers
as fluid temperature
rises.
Battery voltage BATTERY VOLT
[V]X——
●Source voltage of TCM
is displayed.
Engine speed ENGINE SPEED
[rpm]
X—X
●Engine speed, com-
puted from engine
speed signal, is dis-
played.Engine speed display
may not be accurate
under approx. 800 rpm.
It may not indicate 0 rpm
even when engine is not
running.

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-253
[EXC.F/EURO-OBD]
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6th judgement flicker is longer than others.
Overrun clutch solenoid valve circuit is short-circuited or discon-
nected.
 Go to OVERRUN CLUTCH SOLENOID VALVE.
Refer to AT- 3 6 77th judgement flicker is longer than others.
Torque converter clutch solenoid valve circuit is short-circuited or
disconnected.
 Go to TORQUE CONVERTER CLUTCH SOLENOID VALVE.
Refer to AT-372
8th judgement flicker is longer than others.
A/T fluid temperature sensor is disconnected or TCM power
source circuit is damaged.
 Go to BATT/FLUID TEMP SEN(A/T FLUID TEMP SENSOR
CIRCUIT AND TCM POWER SOURCE).
Refer to AT- 3 7 79th judgement flicker is longer than others.
Engine speed signal circuit is short-circuited or disconnected.
 Go to ENGINE SPEED SIGNAL.
Refer to AT-383
O/D OFF indicator lamp:
SCIA0700ESCIA0701E
SCIA0702ESCIA0703E

TROUBLE DIAGNOSIS — INTRODUCTION
AT-257
[EXC.F/EURO-OBD]
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Diagnostic Worksheet
1.❏ Read the Fail-safe and listen to customer complaints.AT- 2 5 6 ,
"Information
from Cus-
tomer"
2.❏ CHECK A/T FLUIDAT- 2 6 1 , "A/T
Fluid Check"❏ Leakage (Follow specified procedure)
❏ Fluid condition
❏ Fluid level
3.❏ Perform STALL TEST and LINE PRESSURE TEST.AT- 2 6 2 , "
Sta l l
Te s t",
AT- 2 6 5 , "
Line
Pressure
Te s t"
❏ Stall test — Mark possible damaged components/others.
❏ Torque converter one-way clutch
❏ Reverse clutch
❏ Forward clutch
❏ Overrun clutch
❏ Forward one-way clutch❏ Low & reverse brake
❏ Low one-way clutch
❏ Engine
❏ Line pressure is low
❏ Clutches and brakes except high clutch and
brake band are OK
❏ Line Pressure test — Suspected parts:
4.❏ Perform all ROAD TEST and mark required procedures.AT- 2 6 6 ,
"Road Test"
4-
1.Check before engine is started.AT- 2 6 8 , "1.
CHECK
BEFORE
ENGINE IS
STARTED"
❏ SELF-DIAGNOSTIC CONFIRMATION PROCEDURE — Mark detected items.
❏ Vehicle speed sensor·A/T (Revolution sensor), AT- 3 4 3
.
❏ Vehicle speed sensor·MTR, AT-348
.
❏ Accelerator pedal position (APP) sensor, AT-352
.
❏ Shift solenoid valve A, AT- 3 5 7
.
❏ Shift solenoid valve B, AT- 3 6 2
.
❏ Overrun clutch solenoid valve, AT- 3 6 7
.
❏ Torque converter clutch solenoid valve, AT-372
.
❏ A/T fluid temperature sensor and TCM power source, AT-377
.
❏ Engine speed signal, AT- 3 8 3
.
❏ Line pressure solenoid valve, AT-388
.
❏ CAN communication line, AT- 3 9 5
.
❏ Control unit (RAM), control unit (ROM), AT-205
.
❏ Control unit (EEP ROM), AT-207
.
❏ PNP & overdrive control switches, and throttle position sensor, AT- 3 3 3
.
❏ Battery
❏ Others
4-
2.Check at idleAT- 2 6 9 , "
2.
CHECK AT
IDLE"❏ 1. O/D OFF Indicator Lamp Does Not Come On, AT- 3 0 9 .
❏ 2. Engine Cannot Be Started In “P” And “N” Position, AT-309
.
❏ 3. In “P” Position, Vehicle Moves Forward Or Backward When Pushed, AT-310
.
❏ 4. In “N” Position, Vehicle Moves, AT- 3 11
.
❏ 5. Large Shock. “N” → “R” Position, AT- 3 1 2
.
❏ 6. Vehicle Does Not Creep Backward In “R” Position, AT-313
.
❏ 7. Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position, AT- 3 1 6
.

AT-258
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
4. 4-
3.Cruise testAT-271, "3.
CRUISE
TEST",
AT-275,
"Cruise Test
— Part 1"
Part-1
❏ 8. Vehicle Cannot Be Started From D
1 , AT- 3 1 7 .
❏ 9. A/T Does Not Shift: D
1→ D2 Or Does Not Kickdown: D4→ D2 , AT- 3 2 0 .
❏ 10. A/T Does Not Shift: D
2→ D3 , AT-322 .
❏ 11. A/T Does Not Shift: D
3→ D4 , AT-324 .
❏ 12. A/T Does Not Perform Lock-up,AT-326
.
❏ 13. A/T Does Not Hold Lock-up Condition, AT-326
.
❏ 14. Lock-up Is Not Released, AT-328
.
❏ 15. Engine Speed Does Not Return To Idle (Light Braking D
4→ D3 ), AT- 3 2 8 .
Part-2AT-278,
"Cruise Test
— Part 2"❏ 16. Vehicle Does Not Start From D1 , AT-330 .
❏ 9. A/T Does Not Shift: D
1→ D2 Or Does Not Kickdown: D4→ D2 , AT- 3 2 0 .
❏ 10. A/T Does Not Shift: D
2→ D3 , AT-322 .
❏ 11. A/T Does Not Shift: D
3→ D4 , AT-324 .
Part-3AT-280,
"Cruise Test
— Part 3"❏ 17. A/T Does Not Shift: D4→ D3 When Overdrive Control Switch “ON” → “OFF”, AT- 3 3 0 .
❏ 15. Engine Speed Does Not Return To Idle (Engine Brake In D
3 ), AT-328 .
❏ 18. A/T Does Not Shift: D
3→ 22 , When Selector Lever “D” → “2” Position, AT- 3 3 1 .
❏ 15. Engine Speed Does Not Return To Idle (Light Braking D
4→D3 ),AT- 3 2 8 .
❏ 19. A/T Does Not Shift: 2
2→ 11 , When Selector Lever “2” → “1” Position, AT- 3 3 2 .
❏ 20. Vehicle Does Not Decelerate By Engine Brake, AT- 3 3 3
.
❏ 21. TCM Self-diagnosis Does Not Activate (PNP & Overdrive Control Switches, and throttle position sen-
sor Circuit Checks), AT- 3 3 3
.
❏ SELF-DIAGNOSTIC PROCEDURE — Mark detected items.
❏ Vehicle speed sensor·A/T (Revolution sensor), AT-343
.
❏ Vehicle speed sensor·MTR, AT- 3 4 8
.
❏ Accelerator pedal position (APP) sensor, AT-352
.
❏ Shift solenoid valve A, AT-357
.
❏ Shift solenoid valve B, AT-362
.
❏ Overrun clutch solenoid valve, AT-367
.
❏ Torque converter clutch solenoid valve, AT- 3 7 2
.
❏ Batt/fluid temp sen (A/T fluid temperature sensor and TCM power source), AT-377
.
❏ Engine speed signal, AT-383
.
❏ Line pressure solenoid valve, AT-388
.
❏ CAN communication line, AT-395
.
❏ Control unit (RAM), control unit (ROM), AT- 2 0 5
.
❏ Control unit (EEP ROM), AT- 2 0 7
.
❏ PNP & overdrive control switches, and throttle position sensor, AT- 3 3 8
.
❏ Battery
❏ Others
5.❏ For self-diagnosis NG items, inspect each component. Repair or replace the damaged parts.AT- 2 5 0 ,
"SELF-DIAG-
NOSTIC
PROCE-
DURE
(WITHOUT
CONSULT-
II)"
6.❏ Perform all ROAD TEST and re-mark required procedures.AT-266,
"Road Test"

TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-261
[EXC.F/EURO-OBD]
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TROUBLE DIAGNOSIS — BASIC INSPECTIONPFP:00000
A/T Fluid CheckECS007QR
FLUID LEAKAGE CHECK
1. Clean area suspected of leaking. — for example, mating surface
of converter housing and transmission case.
2. Start engine, apply foot brake, place selector lever in “D” posi-
tion and wait a few minutes.
3. Stop engine.
4. Check for fluid leakage.
FLUID CONDITION CHECK
FLUID LEVEL CHECK
Refer to AT- 2 6 1 , "A/T Fluid Check" .
SAT767B
SAT288G
Fluid color Suspected problem
Dark or black with burned odor Wear of frictional material
Milky pink Water contamination — Road water
entering through filler tube or breather
Varnished fluid, light to dark brown and
tackyOxidation — Over or under filling, —
Overheating
SAT638A