ECU NISSAN ALMERA 2001 Service Manual

5 CHECK IMMU FUNCTION
1. Connect IMMU connector.
2. Disconnect security indicator lamp connector (Sedan models and hatchback models before VIN No. Ð N16U0135126)
or combination meter connector (Hatchback models after VIN No. Ð N16U0135126).
3. Check continuity between IMMU terminal 5 (Sedan) or 6 (Hatchback) and ground.
SEL485X
OK or NG
OK©Check harness for open or short between security indicator lamp and IMMU.
NG©IMMU is malfunctioning.
Replace IMMU.Ref. part No. A
Perform initialization with CONSULT-II.
For initialization, refer to ªCONSULT-II operation manual NATSº.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont'd)
EL-445

DIAGNOSTIC PROCEDURE 8=NJEL0411S14
1 CHECK HARNESS CONNECTOR CONNECTION
Perform initialization with CONSULT-II.
Check harness connector connection between M31 and M102.
Then initialize NATS. For the initialization operation, refer to ªCONSULT-II operation NATSº.
Does the security indicator blink just after initialization?
Ye s©System is OK. (The malfunction is caused by improper connector connection.)
No©GO TO 2.
2 CHECK GROUND CIRCUIT FOR DONGLE UNIT
Check continuity between dongle unit terminal 1 and ground.
SEL029X
YesorNo
Ye s©GO TO 3.
No©Repair harness.
3 CHECK INTERFACE CIRCUIT
SEL030X
YesorNo
Ye s©Dongle unit is malfunctioning.
1. Replace dongle unit.
2. Perform initialization with CONSULT-II. For the initialization procedure, refer to ªCON-
SULT-II Operation Manual NATSº.
No©Repair harness.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont'd)
EL-448

SEF289X
CONSULT-II=NJEL0524CONSULT-II INSPECTION PROCEDURENJEL0524S011. Turn ignition switch OFF.
2. Connect CONSULT-II to data link connector.
PBR455D
3. Insert NATS program card into CONSULT-II.
: Program card
NATS-AEN00A
4. Turn ignition switch ON.
5. Touch ªSTARTº.
SEL517X
6. Perform each diagnostic test mode according to each service
procedure.
For further information, see the CONSULT-II Operation
Manual, NATS.
CONSULT-II DIAGNOSTIC TEST MODE FUNCTIONNJEL0524S02
CONSULT-II DIAGNOSTIC TEST
MODEDescription
PIN INITIALIZATION Navigation system will be locked when the vehicle's owner enters the wrong PIN five con-
secutive times.
To release the lock, use ªPIN INITIALIZATIONº.
NAVI ID INITIALIZATION In normal times regulation codes are being communicated between Navigation Control
Unit and Dongle Control Unit.
Use ªNAVI ID INITIALIZATIONº to match the codes when either one has been replaced
due to breakdown or etc.
NOTE:
When any initialization is performed, all NAVI ID and PIN pre-
viously registered will be erased and then must be registered
again.
NAVIGATION SYSTEM
CONSULT-II
EL-500

SEM933F
3. Install crankshaft and main bearing caps and tighten bolts to
the specified torque.
+Apply new engine oil to the bolt thread and seat surface.
+Prior to tightening bearing cap bolts, shift crankshaft back
and forth to properly seat the bearing caps.
+Tighten bearing cap bolts gradually in two or three stages.
Start with center bearing and move outward as shown in
figure.
+After securing bearing cap bolts, make sure crankshaft
turns smoothly by hand.
SEM116F
4. Measure crankshaft end play.
Crankshaft end play:
Standard
0.060 - 0.220 mm (0.0024 - 0.0087 in)
Limit
0.3 mm (0.012 in)
If beyond the limit, replace thrust bearing with new ones.
SEM168D
5. Install connecting rod bearings in connecting rods and con-
necting rod caps.
+Confirm that correct bearings are used. Refer to EM-60.
+Install bearings so that oil hole in connecting rod aligns
with oil hole of bearing.
+Apply new engine oil to bolt threads and bearing surfaces.
SEM942F
6. Install pistons with connecting rods.
a. Install them into corresponding cylinders with Tool.
+Make sure connecting rod does not scratch cylinder wall.
+Make sure connecting rod bolts do not scratch crankshaft
pin journals.
+Arrange so that front mark on piston head faces engine.
+Apply new engine oil to piston rings and sliding surface
of piston.
SEM943F
b. Install connecting rod caps.
Apply new engine oil to bolt threads and nut seating surfaces.
Tighten connecting rod cap nuts in the following procedure:
+Tighten to 13.72 to 15.68 N´m (1.399 to 1.599 kg-m, 10.120
to 11.566 ft-lb).
+Turn nuts to 35É to 40É degrees clockwise with an angle
wrench. If an angle wrench is not available, tighten nuts to
23 to 28 N´m (2.3 to 2.9 kg-m, 17 to 21 ft-lb).
CYLINDER BLOCKQG
Assembly (Cont'd)
EM-64

REMOVALNJEM0094S011. Remove engine and transaxle assembly. Refer to EM-137,
ªENGINE ASSEMBLYº.
2. Remove transaxle from engine. Place engine onto engine
stand (SST). Refer to EM-141, ªCYLINDER BLOCKº, ªDisas-
semblyº.
3. Remove the following parts:
+Oil pan (upper and lower)
Refer to EM-89, ªOIL PANº.
+Oil filter bracket
Refer to LC-32, ªOil Filter Bracketº.
+Injection tube
Refer to EC-614, ªInjection Tube and Injection Nozzleº.
4. Remove secondary timing chain and associated parts.
Refer to EM-94, ªSecondary Timing Chainº.
5. When removing rear chain case, remove camshaft sprockets.
Refer to EM-120, ªCAMSHAFTº.
JEM131G
6. Remove crankshaft pulley.
a. Hold crankshaft pulley with the pulley holder (SST).
b. Loosen crankshaft pulley fixing bolt and pull out the bolt
approximately 10 mm (0.39 in).
JEM132G
c. Using pulley puller (SST), remove crankshaft pulley.
+Use two M6 bolts with approx. 60 mm (2.36 in) shank length
for securing crankshaft pulley.
JEM133G
7. Remove oil pump.
+Loosen bolts in the reverse order of that shown in the figure
and remove them.
+Use seal cutter (SST) etc. for removal.
8. Remove front oil seal from oil pump.
+Punch out the seal off from the back surface of the oil pump
using a flat-bladed screwdriver.
+Be careful not to damage the oil pump.
TIMING CHAINYD
Primary Timing Chain (Cont'd)
EM-100

JEM158G
SEM301G
3. Heat cylinder head to 110 to 120ÉC (230 to 248ÉF) by soaking
in heated oil.
4. Sufficiently cool valve seat with dry ice. Force fit valve seat into
cylinder head.
WARNING:
Do not touch cold valve seat with your bare hands.
5. Cut or grind valve seat using suitable tool to the specified
dimensions as shown in SDS (EM-164).
CAUTION:
Use the valve seat cutter properly. Securely gripping the cut-
ter handle with both hands, press the cutter down onto the
entire circumference of the contacting surface and finish cut-
ting at one time. Improper pressing of the cutter or cutting in
several steps may result in staged surface on the valve seat.
6. After cutting, lap valve seat with abrasive compound.
7. Check valve seating condition. Refer to EM-126, ªValve Seatsº.
JEM253G
8. Use a depth gauge to measure the distance between the
mounting surface of the cylinder head spring seat and the
valve stem end. If the distance is shorter than specified, repeat
step 5 above to adjust it. If it is longer, replace the valve seat
with a new one.
Valve seat resurface limit ªLº:
Intake 36.53 - 36.98 mm (1.4382 - 1.4559 in)
Exhaust 36.53 - 37.01 mm (1.4382 - 1.4571 in)
CYLINDER HEADYD
Inspection (Cont'd)
EM-127

JEM175G
3. Install camshaft brackets.
+Install correctly, identifying brackets by the journal No. and
front mark on top surface.
JEM160G
4. Tighten bolts in the order shown in the figure according to the
following procedure:
a. Tighten to 2.0 N´m (0.2 kg-m, 17 in-lb).
+Make sure camshaft thrusting parts (on rear side) securely fit
in their mating parts on the cylinder head.
b. Tighten to 6 N´m (0.6 kg-m, 52 in-lb).
c. Tighten to 12 to 13 N´m (1.2 to 1.4 kg-m, 9 to 10 ft-lb).
5. Install camshaft sprockets.
+Camshaft sprockets are commonly used for RH and LH.
+Align camshaft sprocket and dowel pin on camshaft, and
install.
+Holding the hexagonal part of camshaft with a wrench, tighten
bolt securing camshaft sprocket.
6. Before installing spill tube after installing secondary timing
chain, check and adjust valve clearance. Refer to EM-133,
ªValve Clearanceº.
7. Hereafter, install in the reverse order of removal.
JEM176G
Valve ClearanceNJEM0068CHECKINGNJEM0068S01Check valve clearance while engine is cold and not running.
1. Set the No. 1 piston to TDC on its compression stroke.
+Turn crankshaft pulley clockwise so that the knock pin on cam-
shaft LH faces straight above. (No position indicator, etc. is
provided on the crankshaft pulley.)
JEM177G
2. Put an alignment mark with paint, etc. on the crankshaft pul-
ley and on the oil pump as an angle indicator.
CYLINDER HEADYD
Installation (Cont'd)
EM-133

crankshaft position sensor (TDC sensor) from the assem-
bly.
+Always pay extra attention not to damage edge of crank-
shaft position sensor (TDC sensor) or ring gear teeth.
REMOVALNJEM0069S011. Remove engine undercover, and hood for hoisting.
2. Drain coolant from both cylinder block and radiator. Refer to
LC-44, ªChanging Engine Coolantº.
3. Remove the following parts:
+Battery
+RH and LH front wheels
+RH and LH splash covers (combined with undercover)
+Auxiliary belts
+Alternator
+Alternator brackets
+Radiator and cooling fan
+Engine cover
+Air ducts and air cleaner case
LH side of engine room:
4. Disconnect all harnesses and grounds that are connected to
components on vehicle.
5. Disconnect vacuum hose on vacuum pump side.
6. Disconnect fuel feed and fuel return hoses on engine side.
+Immediately put blind plugs into the openings to prevent
fuel from flowing out.
7. Disconnect heater hose. Plug opening of hose to prevent cool-
ant from flowing out.
RH side of engine room:
8. Remove air conditioner compressor from brackets and move
it toward vehicle side. Secure compressor on vehicle side with
rope.
Vehicle underside:
9. Remove exhaust front tube.
10. Disconnect two hoses from power steering pump and plug to
stop fluid.
11. Remove M/T control rod and support rod.
12. Remove ABS wheel sensor, and temporarily hang brake cali-
per with rope on vehicle side.
13. Remove RH and LH drive shafts.
SEM666G
14. Install engine slingers to cylinder head.
: 30 - 37 N´m (3.0 - 3.8 kg-m, 22 - 27 ft-lb)
+Use engine slingers and securing bolts of the specified
service parts.
15. Lift up vehicle to appropriate level where work can be per-
formed efficiently. Using two transmission jacks, securely sup-
port engine oil pan and bottom surface of transaxle.
ENGINE ASSEMBLYYD
Removal and Installation (Cont'd)
EM-138

SEM189G
+Make sure that support is stable with the use of safety
blocks.
16. Install hooks of lifting chain into engine slingers and tighten
chain so that engine still remains on transmission jacks with-
out being lifted up.
17. Remove engine mount insulator RH.
18. Remove through-bolt of engine mount insulator LH.
19. Remove bolts securing center member at front and rear.
JEM190G
20. Carefully lower transmission jacks in accordance with the low-
ering pace of the hoist, and remove engine and transaxle
assembly from vehicle.
+While working, check that no parts of engine assembly
interfere with adjacent parts on the vehicle.
+While working, make sure that parts requiring disconnec-
tion are not left connected, and that no parts interfere with
vehicle.
+To prevent vehicle from falling down, perform operation
carefully so that the center of gravity of the vehicle will not
shift.
21. Remove center member.
+Before starting removal operation, first place the assem-
bly on a level surface and securely support the bottom
surface with wood blocks. Using a hoist, lift engine
slingers, and make sure the assembly is stable.
22. Separate engine and transaxle.
INSTALLATIONNJEM0069S02Install in the reverse order of removal, observing the following:
+While installing, be careful to keep mount insulators free of oil
smear and damage.
+When parts require specified installation directions/positions,
install by using the identifying marks indicating up or front.
+While keeping the mount insulators free of twists or distortions,
start tightening from the through-bolt on the engine mount
insulator LH. This mount is used as the reference position.
ENGINE ASSEMBLYYD
Removal and Installation (Cont'd)
EM-139

Removal and InstallationNJEM0071CAUTION:
+When installing bearings, pistons, or other sliding parts,
lubricate contacting surfaces with new engine oil.
+Place removed parts such as bearings and bearing caps
in their proper order and direction.
+When installing connecting rod nuts, and main bearing
cap bolts, apply new engine oil to threads and seating
surfaces.
+Do not allow any magnetic materials to contact the signal
plate of flywheel.
+Do not remove the signal plate at back.
+Do not place the signal plate side facing under.
+Handle with care so as not to damage the signal plate
[especially four places on protrusions for signal of crank
position sensor (TDC sensor)].
DisassemblyNJEM0072PISTON AND CRANKSHAFTNJEM0072S011. Remove engine. Refer to ªENGINE ASSEMBLYº, ªRemoval
and Installationº, EM-137.
2. Place engine on a work stand.
a. Remove flywheel.
+Hold ring gear with ring gear stopper (KV10105630,
KV10105610). Then, loosen securing bolts with TORX socket
(size: Q8 E20, Commercial Service Tool) and remove them.
As an alternative method, hold the crankshaft pulley with a
pulley holder (SST) to remove the flywheel.
JEM192G
b. Install engine sub-attachment (SST) to rear surface of cylinder
block.
+To install, align the hole on the sub-attachment with the knock
pin on the cylinder block.
+The engine sub-attachment has five bolts.
c. Install engine attachment (SST).
+The four sets of bolts and nuts are multi-purpose products.
CYLINDER BLOCKYD
Removal and Installation
EM-141