automatic transmission NISSAN ALMERA N16 2003 Electronic Repair Manual

Do not attempt to top off the fuel tank after the fuel pump nozzle
shuts off automatically. Continued refueling may cause fuel
overflow, resulting in fuel spray and possibly a fire.
WARNING:
To prevent ECM from storing the diagnostic trouble codes, do
not carelessly disconnect the harness connectors which are
related to the engine control system and TCM (Transmission
Control Module) system. The connectors should be discon-
nected only when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and AT sections.
SGI787
PRECAUTIONS FOR MULTIPORT FUEL INJECTION
SYSTEM OR ENGINE CONTROL SYSTEM
NJGI0001S04Before connecting or disconnecting any harness connector for
the multiport fuel injection system or ECM:
Turn ignition switch to “OFF” position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.
Before disconnecting pressurized fuel line from fuel pump to
injectors, be sure to release fuel pressure.
Be careful not to jar components such as ECM and mass air
flow sensor.
PRECAUTIONS FOR THREE WAY CATALYSTNJGI0001S05If a large amount of unburned fuel flows into the catalyst, the cata-
lyst temperature will be excessively high. To prevent this, follow the
instructions below:
Use unleaded gasoline only. Leaded gasoline will seriously
damage the three way catalyst.
When checking for ignition spark or measuring engine
compression, make tests quickly and only when necessary.
Do not run engine when the fuel tank level is low, otherwise the
engine may misfire, causing damage to the catalyst.
Do not place the vehicle on flammable material. Keep flammable
material off the exhaust pipe and the three way catalyst.
SMA019D
PRECAUTIONS FOR HOSESNJGI0001S06Hose Removal and InstallationNJGI0001S0601To prevent damage to rubber hose, do not pry off rubber hose
with tapered tool or screwdriver.
PRECAUTIONS
Precautions (Cont’d)
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The captionsWARNINGandCAUTIONwarm you of steps that must be followed to prevent personal injury
and/or damage to some part of the vehicle.
WARNINGindicates the possibility of personal injury if instructions are not followed.
CAUTIONindicates the possibility of component damage if instructions are not followed.
BOLD TYPED STATEMENTSexceptWARNINGandCAUTIONgive you helpful information.
ALPHABETICAL INDEXis provided at the end of this manual so that you can rapidly find the item and
page you are searching for.
A QUICK REFERENCE INDEX, a black tab (e.g.
) is provided on the first page. You can quickly find
the first page of each section by matching it to the section’s black tab.
THE CONTENTSare listed on the first page of each section.
THE TITLEis indicated on the upper portion of each page and shows the part or system.
THE PAGE NUMBERof each section consists of two letters which designate the particular section and a
number (e.g. “BR-5”).
THE LARGE ILLUSTRATIONSare exploded views (See below.) and contain tightening torques, lubrica-
tion points, section number of thePARTS CATALOG(e.g. SEC. 440) and other information necessary to
perform repairs.
The illustrations should be used in reference to service matters only. When ordering parts, refer to the
appropriatePARTS CATALOG.
SBR364AC
THE SMALL ILLUSTRATIONSshow the important steps such as inspection, use of special tools, knacks
of work and hidden or tricky steps which are not shown in the previous large illustrations.
Assembly, inspection and adjustment procedures for the complicated units such as the automatic transaxle
or transmission, etc. are presented in a step-by-step format where necessary.
TheUNITSgiven in this manual are primarily expressed as the SI UNIT (InternationalSystem of Unit),
and alternatively expressed in the metric system and in the yard/pound system.
“Example”
Tightening torque:
59 - 78 N·m (6.0 - 8.0 kg-m, 43 - 58 ft-lb)
TROUBLE DIAGNOSESare included in sections dealing with complicated components.
HOW TO USE THIS MANUAL
GI-10

SERVICE DATA AND SPECIFICATIONSare contained at the end of each section for quick reference of
data.
The followingSYMBOLS AND ABBREVIATIONSare used:
SYMBOL ABBREVIATION SYMBOL ABBREVIATION
Tightening torque
2WD2-Wheel Drive
Should be lubricated with grease. Unless oth-
erwise indicated, use recommended multi-pur-
pose grease.A/CAir Conditioner
Should be lubricated with oil. P/S Power Steering
Sealing point SST Special Service Tools
Checking point SAE Society of Automotive Engineers, Inc.
Always replace after every disassembly. ATF Automatic Transmission Fluid
P
Apply petroleum jelly.
D1Drive range 1st gear
Apply ATF. D2Drive range 2nd gear
★Select with proper thickness. D
3Drive range 3rd gear
✩Adjustment is required. D
4Drive range 4th gear
SDS Service Data and Specifications OD Overdrive
LH, RH Left-Hand, Right-Hand 2
22nd range 2nd gear
FR, RR Front, Rear 2
12nd range 1st gear
M/T Manual Transaxle/Transmission 1
21st range 2nd gear
A/T Automatic Transaxle/Transmission 1
11st range 1st gear
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HOW TO USE THIS MANUAL
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SGI987
Tow Truck TowingNJGI0009S05CAUTION:
All applicable local laws regarding the towing operation
must be obeyed.
It is necessary to use proper towing equipment to avoid
possible damage to the vehicle during towing operation.
Towing is in accordance with Towing Procedure Manual at
dealer.
Always attach safety chains before towing.
When towing, make sure that the transmission, steering
system and power train are in good order. If any unit is
damaged, dollies must be used.
NISSAN recommends that the vehicle be towed with the driving
(front) wheels off the ground as illustrated.
TOWING AN AUTOMATIC TRANSAXLE MODEL WITH
FOUR WHEELS ON GROUND
NJGI0009S0502Observe the following restricted towing speeds and distances.
Speed:
Below 50 km/h (30 MPH)
Distance:
Less than 65 km (40 miles)
CAUTION:
Never tow an automatic transaxle model from the rear (i.e.,
backward) with four wheels on the ground as this may cause
serious and expensive damage to the transaxle.
TOWING AN AUTOMATIC TRANSAXLE MODEL WITH
REAR WHEELS RAISED (WITH FRONT WHEELS ON
GROUND)
NJGI0009S0503Never tow an automatic transaxle model with rear wheels raised
(with front wheels on ground) as this may cause serious and
expensive damage to the transaxle. If it is necessary to tow it with
rear wheels raised, always use a towing dolly under the front
wheels.
LIFTING POINTS AND TOW TRUCK TOWING
Tow Truck Towing
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NJMA0036
Shown below are Pre-delivery Inspection Items required for the new vehicle. It is recommended that
necessary items other than those listed here be added, paying due regard tothe conditions in each
country.
Perform applicable items on each model. Consult text of this section for specifications.
UNDER HOOD — engine off
Radiator coolant level and coolant hose connections for leaks
Battery fluid level, specific gravity and conditions of battery terminals
Drive belts tension
Fuel filter for water or dusts (Diesel only), and fuel lines and connections for leaks
Engine oil level and oil leaks
Clutch and brake reservoir fluid level and fluid lines for leaks
Windshield and rear window washer and headlamp cleaner reservoir fluid level
Power steering reservoir fluid level and hose connections for leaks
ON INSIDE AND OUTSIDE
Remove front spring/strut spacer (If applicable)
Operation of all instruments, gauges, lights and accessories
Operation of horn(s), wiper and washer
Steering lock for operation
Check air conditioner for gas leaks
Front and rear seats, and seat belts for operation
All moldings, trims and fittings for fit and alignment
All windows for operation and alignment
Hood, trunk lid, door panels for fit and alignment
Latches, keys and locks for operation
Weatherstrips for adhesion and fit
Headlamp aiming
Tighten wheel nuts (Inc. inner nuts if applicable)
Tire pressure (Inc. spare tire)
Check front wheels for toe-in
Install clock/voltmeter/room lamp fuse (If applicable)
Install deodorizing filter to air conditioner (If applicable)
Remove wiper blade protectors (If applicable)
UNDER BODY
Manual transmission/transaxle, transfer and differential gear oil level
Brake and fuel lines and oil/fluid reservoirs for leaks
Tighten bolts and nuts of steering linkage and gear box, suspension, propeller shafts and drive shafts
Tighten rear body bolts and nuts (Models with wooden bed only)
ROAD TEST
Clutch operation
Parking brake operation
Service brake operation
Automatic transmission/transaxle shift timing and kickdown
Steering control and returnability
Engine performance
Squeaks and rattles
ENGINE OPERATING AND HOT
Adjust idle speed
Automatic transmission/transaxle fluid level
Engine idling and stop knob operation (Diesel only)
FINAL INSPECTION
Install necessary parts (outside mirror, wheel covers, seat belts, mat, carpet or mud flaps)
Inspect for interior and exterior metal and paint damage
Check for spare tire, jack, tools (wheel chock), and literature
Wash, clean interior and exterior
: Not applicable to this model
PRE-DELIVERY INSPECTION ITEMS
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NJMA0006
Fluids and LubricantsNJMA0006S01
Recommended fluids and lubricants
Engine oilQG engineExcept for Europe
API SE, SF, SG, SH, SJ or SL*1
ILSAC grade GF-I, GF-II or GF-III*1
For Europe
API SG, SH, SJ or SL*1
ILSAC grade GF-I, GF-II or GF-III*1
ACEA 96-A2
YD engineExcept for Europe
API CD, CE, CF or CF-4*1, *2
JASO DH1
For Europe
API CF-4*1, *2
ACEA 98-B1
Cooling systemExcept for Europe
Nissan genuine engine coolant, or equivalent in its quality*3
For Europe
Genuine Nissan Anti-freeze Coolant (L250) or equivalent*3
Manual transaxle gear oilExcept for Europe
API GL-4
Viscosity SAE 75W-90
For Europe
Genuine Nissan XZ gear oil or exact equivalent.
Automatic transaxle fluid Genuine Nissan ATF or equivalent*4
Power steering fluid Type Dexron
TMIII or equivalent
Brake and clutch fluidExcept for Europe
DOT 3 (US FMVSS No. 116)
For Europe
DOT 3 or DOT 4 (US FMVSS No. 116)*5
Multi-purpose grease NLGI No. 2 (Lithium soap base)
*1: For further details, see “SAE Viscosity Number”.
*2: Never use API CG-4.
*3: Use Nissan genuine engine coolant [For Europe, use Genuine Nissan Anti-freeze Coolant (L250)] or equivalent in its quality, in order
to avoid possible aluminum corrosion within the engine cooling system caused by the use of non-genuine engine coolant.
Note that any repairs for the incidents within the engine cooling system while using non-genuine engine coolant may not be
covered by the warranty even if such incidents occurred during the warranty period.
*4: Contact a Nissan dealership for more information regarding suitable fluids, including recommended brand(s) of Dexron
TMIII/MerconTM
Automatic Transmission Fluid.
*5: Never mix different types of fluids (DOT 3 and DOT 4).
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RECOMMENDED FLUIDS AND LUBRICANTS
Fluids and Lubricants
MA-19

AT-1
AUTOMATIC TRANSAXLE
C TRANSMISSION/TRANSAXLE
CONTENTS
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SECTION
A
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AUTOMATIC TRANSAXLE
PRECAUTIONS .......................................................... 5
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 5
Precautions for On Board Diagnostic (EURO-OBD)
System of A/T and Engine — Euro-OBD — ............. 5
Precautions for Trouble Diagnosis ........................... 5
Precautions for Harness Repair ............................... 5
Precautions .............................................................. 6
Service Notice or Precautions .................................. 7
Wiring Diagrams and Trouble Diagnosis .................. 8
PREPARATION ........................................................... 9
Special Service Tools ............................................... 9
Commercial Service Tools ...................................... 12
A/T FLUID ................................................................. 13
Checking A/T Fluid ................................................. 13
Changing A/T Fluid ............................................. ... 13
OVERALL SYSTEM ................................................. 14
A/T Electrical Parts Location .................................. 14
Circuit Diagram ...................................................... 15
Cross-Sectional View ............................................. 16
Hydraulic Control Circuit ........................................ 17
Shift Mechanism ..................................................... 18
Control System ....................................................... 27
Control Mechanism ................................................ 28
Control Valve .......................................................... 34
EURO-OBD
TROUBLE DIAGNOSIS — INDEX ........................... 35
Alphabetical & P No. Index for DTC ....................... 35
ON BOARD DIAGNOSTIC SYSTEM DESCRIP-
TION .......................................................................... 37
Introduction ............................................................ 37
EURO-OBD Function for A/T System .................... 37
One or Two Trip Detection Logic of EURO-OBD ... 37
EURO-OBD Diagnostic Trouble Code (DTC) ......... 37
Malfunction Indicator (MI) ....................................... 41
CONSULT-II ........................................................... 41
Diagnostic Procedure Without CONSULT-II ........... 50TROUBLE DIAGNOSIS — INTRODUCTION ........... 56
Introduction ............................................................. 56
Work Flow ............................................................... 60
TROUBLE DIAGNOSIS — BASIC INSPECTION .... 63
A/T Fluid Check ...................................................... 63
Stall Test ................................................................. 64
Line Pressure Test .................................................. 67
Road Test ............................................................... 68
TROUBLE DIAGNOSIS — GENERAL DESCRIP-
TION .......................................................................... 86
Symptom Chart ....................................................... 86
TCM Terminals and Reference Value ...................106
CAN COMMUNICATION .........................................109
System Description ...............................................109
CAN Communication Unit .....................................109
DTC P0705 PARK/NEUTRAL POSITION (PNP)
SWITCH ...................................................................111
Description .............................................................111
Wiring Diagram — AT — PNP/SW .......................113
Diagnostic Procedure ...........................................114
Component Inspection ..........................................116
DTC P0710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT ..................................................................117
Description ............................................................117
Wiring Diagram — AT — FTS ..............................119
Diagnostic Procedure ...........................................120
Component Inspection ..........................................122
DTC P0720 VEHICLE SPEED SENSOR A/T (REV-
OLUTION SENSOR) ...............................................123
Description ............................................................123
Wiring Diagram — AT — VSSA/T ........................126
Diagnostic Procedure ...........................................127
DTC P0725 ENGINE SPEED SIGNAL ...................129
Description ............................................................129
Wiring Diagram — AT — ENGSS .........................130
Diagnostic Procedure ..........................................
.131
DTC P0731 A/T 1ST GEAR FUNCTION ................133
Description ............................................................133
Wiring Diagram — AT — 1ST ...............................136

OVERALL SYSTEM
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●*1: Operates when overdrive control switch is set in “OFF” position.
●*2: Oil pressure is applied to both 2nd “apply” side and 3rd “release” side of band servo piston. However, brake band does not con-
tract because oil pressure area on the “release” side is greater than that on the “apply” side.
●*3: Oil pressure is applied to 4th “apply” side in condition *2 above, and brake band contracts.
●*4: A/T will not shift to 4th when overdrive control switch is set in “OFF” position.
●*5: Operates when overdrive control switch is “OFF”.
●: Operates.
●A: Operates when throttle opening is less than 3/16, activating engine brake.
●B: Operates during “progressive” acceleration.
●C: Operates but does not affect power transmission.
●D: Operates when throttle opening is less than 3/16, but does not affect engine brake. D*41st *1D B B
Automatic
shift
1⇔ 2 ⇔ 3
⇔ 4 2nd *1A B
3rd *1A *2C C B
*5
4th C *3C C
21st D B BAutomatic
shift
1⇔ 2 2nd A B
11stBLocks (held
stationary) in
1st speed
1⇐ 2 2ndB Shift posi-
tionReverse
clutch
5High
clutch
6For-
ward
clutch
15Over-
run
clutch
17Band servo
Forward
one-way
clutch
16Low
one-
way
clutch
18Low &
revers
e brake
19Lock-
upRemarks
2nd
apply3rd
release4th
apply

OVERALL SYSTEM
AT-29
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Back-up Control (Engine Brake)
If the selector lever is shifted to “2” position while driving in D4 (OD)
or D
3 , great driving force is applied to the clutch inside the transmis-
sion. Clutch operating pressure (line pressure) must be increased to
deal with this driving force.
During Shift Change
The line pressure is temporarily reduced corresponding to a change
in engine torque when shifting gears (that is, when the shift solenoid
valve is switched for clutch operation) to reduce shifting shock.
At Low Fluid Temperature
●Fluid viscosity and frictional characteristics of the clutch facing change with fluid temperature. Clutch
engaging or band-contacting pressure is compensated for, according to fluid temperature, to stabilize
shifting quality.
●The line pressure is reduced below 60°C (140°F) to prevent
shifting shock due to low viscosity of automatic transmission
fluid when temperature is low.
●Line pressure is increased to a maximum irrespective of the
throttle opening when fluid temperature drops to −10°C (14°F).
This pressure rise is adopted to prevent a delay in clutch and
brake operation due to extreme drop of fluid viscosity at low
temperature.
SAT004J
SAT005J
SAT006J
SAT007J

SERVICE DATA AND SPECIFICATIONS (SDS)
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[ALL]
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsECS007TS
*: Refer to MA-19.
Shift ScheduleECS007TT
VEHICLE SPEED WHEN SHIFTING GEARS
VEHICLE SPEED WHEN PERFORMING LOCK-UP
Stall RevolutionECS007TU
Line PressureECS007TV
EngineQG18DE
Automatic transaxle modelRE4F03B
Automatic transaxle assembly Model code number 3AX70
Transaxle gear ratio1st 2.861
2nd 1.562
3rd 1.000
4th 0.697
Reverse 2.310
Final drive 4.072
Recommended fluidGenuine Nissan Automatic Transmission
Fluid or equivalent*
Fluid capacity
7.7 (6-3/4 Imp qt)
Throttle posi-
tionShift patternVehicle speed km/h (MPH)
D
1→ D2D2→ D3D3→ D4D4→ D3D3→ D2D2→ D112→ 11
Full throttle Comfort54 - 62
(20 - 23)102 - 110
(64 - 69)162 - 170
(96 - 100)158 - 166
(99 - 104)92 - 100
(57 - 63)41 - 49
(25 - 30)54 - 62
(34 - 39)
Half throttle Comfort29 - 37
(18 - 23)51 - 59
(32 - 37)123 - 131
(77 - 80)69 - 77
(43 - 48)34 - 42
(21 - 26)5 - 13
(3 - 8)54 - 62
(34 - 39)
Throttle opening OD switch Shift patternVehicle speed km/h (MPH)
Lock-up ON Lock-up OFF
2/8ON (D
4 ) Comfort 96 - 104 (60 - 65) 65 - 73 (41 - 46)
OFF (D
3 ) Comfort 96 - 104 (60 - 65) 93 - 101 (58 - 63)
Engine model Stall revolution rpm
QG18DE 2,300 - 2,750
Engine speed
rpmLine pressure kPa (bar, kg/cm2 , psi)
R position D position 2 position 1 position
Idle 778 (7.8, 7.9, 113) 500 (5.0, 5.1, 73) 500 (5.0, 5.1, 73) 500 (5.0, 5.1, 73)
Stall 1,813 (18.1, 18.5, 263) 1,165 (11.7, 11.9, 169) 1,165 (11.7, 11.9, 169) 1,165 (11.7, 11.9, 169)