1999 NISSAN PRIMERA hood release

On Board Diagnosis LogicNLEC0240The ECM monitors the switching frequency ratio of heated oxygen
sensors 1 (front) and 2 (rear).
A three way catalyst with high oxygen storage capacity will indicate
a low switching frequency of heated oxygen sensor 2 (rear). As
oxygen storage capacity decreases, the heated oxygen sensor 2
(rear) switching frequency will increase.
When the frequency ratio of heated oxygen sensors 1 (front) and
2 (rear) approaches a specified limit value, the three way catalyst
malfunction is diagnosed.
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P0420
0420IThree way catalyst does not operate properly.
IThree way catalyst does not have enough oxygen stor-
age capacity.IThree way catalyst
IExhaust tube
IIntake air leaks
IInjectors
IInjector leaks
ISpark plug
IImproper ignition timing
DTC Confirmation ProcedureNLEC0241CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If ªDTC Confirmation Procedureº has been previously conducted,
always turn ignition switch ªOFFº and wait at least 9 seconds
before conducting the next test.
With CONSULT-II
TESTING CONDITION:
IOpen engine hood before conducting following proce-
dure.
IDo not hold engine speed more than specified minutes
below.
1) Turn ignition switch ªONº.
2) Select ªDTC & SRT CONFIRMATIONº then ªSRT WORK SUP-
PORTº mode with CONSULT-II.
3) Start engine.
4) Rev engine up to 3,000 500 rpm and hold it for 3 consecutive
minutes then release the accelerator pedal completely.
If ªCOMPLETEDº appears on the CONSULT-II screen, go to
step 7.
5) Wait 5 seconds at idle.
6) Rev engine up to 2,500 500 rpm and maintain it until ªINCMPº
of CATALYST changes to ªCMPLTº (it will take approximately
5 minutes.)
If not ªCMPLTº, stop engine and cool it down to less than 70ÉC
(158ÉF) and then retest from step 1.
7) Select ªSELF-DIAG RESULTSº mode with CONSULT-II.
8) Confirm that the 1st trip DTC is not detected.
If the 1st trip DTC is detected, go to ªDiagnostic Procedureº,
EC-259.
SEF184UD
SEF847Y
SEF848Y
SEF560X
DTC P0420 THREE WAY CATALYST FUNCTIONQG16I18DE
On Board Diagnosis Logic
EC-258

On Board Diagnosis LogicNCEC0240The ECM monitors the switching frequency ratio of front and
heated oxygen sensor 2 (rear)s.
A three way catalyst with high oxygen storage capacity will indicate
a low switching frequency of heated oxygen sensor 2 (rear). As
oxygen storage capacity decreases, the heated oxygen sensor 2
(rear) switching frequency will increase.
When the frequency ratio of front and heated oxygen sensor 2
(rear)s approaches a specified limit value, the three way catalyst
malfunction is diagnosed.
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P0420
0420IThree way catalyst does not operate properly.
IThree way catalyst does not have enough oxygen stor-
age capacity.IThree way catalyst
IExhaust tube
IIntake air leaks
IInjectors
IInjector leaks
ISpark plug
IImproper ignition timing
DTC Confirmation ProcedureNCEC0241CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If ªDTC Confirmation Procedureº has been previously conducted,
always turn ignition switch ªOFFº and wait at least 9 seconds
before conducting the next test.
WITH CONSULT-II
TESTING CONDITION:
IOpen engine hood before conducting the following proce-
dure.
IDo not hold engine speed for more than the specified min-
utes below.
1) Turn ignition switch ªONº.
2) Select ªDTC & SRT CONFIRMATIONº then ªSRT WORK SUP-
PORTº mode with CONSULT-II.
3) Start engine.
4) Rev engine up to 3,000 500 rpm and hold it for 3 consecutive
minutes then release the accelerator pedal completely.
5) Wait 5 seconds at idle.
6) Rev engine up to 2,500 500 rpm and maintain it until ªINCMPº
of CATALYST changes to ªCMPLTº (It will take approximately
5 minutes).
If not ªCMPLTº, stop engine and cool it down to less than 70ÉC
(158ÉF) and then retest from step 1.
7) Select ªSELF-DIAG RESULTSº mode with CONSULT-II.
8) Confirm that the 1st trip DTC is not detected.
If the 1st trip DTC is detected, go to ªDiagnostic Procedureº,
EC-SR-247.
SEF184UD
NEF247A
NEF248A
SEF560X
DTC P0420 THREE WAY CATALYST FUNCTIONSR20DE
On Board Diagnosis Logic
EC-246

ID Code Entry Procedure
Activation of the registration mode:
The vehicle must have been unlocked by either the multi-remote controller or a transponder OK signal
(TPOK) from the vehicle’s immobilizer.
Preparation: - Make sure all doors unlock.
- Make sure all multi-remote controllers to be registered are available.
- Make sure the batteries of all multi-remote controllers are in a good condition.
- Make sure all transmitting sources are out of the neighbourhood of the vehicle .
- Make sure the battery of the vehicle is in a good condition.
Switch ignition-switch exactly six times from the“LOCK”to the“ON”position within 10 seconds and return
the ignition switch to the“LOCK”position (leaving the key in the ignition switch).
After 2 seconds the registration mode is activated. The turn signal lamps will flash twice.
OKNG
Proceed with the registration mode.
NOTE
The registration mode is operated when:

The ignition-switch is turned to the“ON”position.

4 multi remote controllers have been learned.

No multi-remote controller or ignition switch input is received within
120 seconds.
Registration mode

Press and hold the“UNLOCK”button of the multi-remote controller.
NEL569
Press the“LOCK”button 3 times.
Release the“UNLOCK”button.If the multi-remote controller
code is registered correctly,
the turn signal lamp will
flash once.NG
Do you want to register another multi-remote controller? (max. 4)
NoYe s
OK
After registration of the requested No. of multi-remote controller(s),
confirm the ID-code(s) by switching the ignition switch to the“ON”
position.
If the multi-remote controller
registration is performed
correctly, the turn signal
lamp will flash twice.
Take the ignition key out of the ignition switch and confirm the func-
tioning of all multi-remote controllers by locking and unlocking the
vehicle with each of the multi-remote controllers.OK NG
End









MULTI-REMOTE CONTROL SYSTEM
EL-305

Checks
Once in Diagnostic Mode (and after identifying the last three alarm triggers in case a theft warning system
is equipped on the vehicle), the following inputs can be tested.
USER ACTION TCU Reaction COMPONENT TESTED
Driver’s door opened from closed
(all other doors closed)Hazards flash once Driver’s door open signal
Passenger or rear door opened from closed
(all other doors closed)Hazards flash once Door open signal for opened door
Driver’s door locked from unlocked Hazards flash once Driver’s door status signal
Passenger door locked from unlocked Hazards flash once Assist door status signal
Rear doors locked from unlocked (with ultra-
sonic model)Hazards flash once Rear doors status signal
Ultrasonics cancel switch is pressed (with ultra-
sonic model)Hazards flash once U/S cancel signal
Trunk or back door is opened from closed Hazards flash once Trunk open signal
Hood is opened from closed (with ultrasonic
model)Hazards flash once Hood open signal
Hazard switch is pressed from off Hazards flash once Hazard switch signal
Turn signal switch is moved to left from off Hazards flash once Left turn signal
Turn signal switch is moved to right from off Hazards flash once Right turn signal
Key turned to lock position in door Hazards flash once * Key cylinder lock switch signal
Lighting switch turned 1st position or 2nd posi-
tion from offHazards flash once Tail lamp signal
Key put in ignition from out Hazards flash once Key in detect signal
Central unlock/Trunk release switch is pressed Hazards flash once Central unlock/Trunk release signal
External trunk release switch pressed from off Hazards flash once External trunk release switch signal
*) Hazards may flash a second time because of Driver’s door status signal change. The min. delay time between flash actions is
100ms.
In case the system does not operate as described above, check the concerned circuit for open or short.
After completion, the Diagnostic Mode can be switched off by pressing the rear defogger switch or by turn-
ing the ignition to“ON”. The hazard lamp will flash at 3Hz for 3 seconds to confirm that Diagnostic Mode
has been switched off.
TIME CONTROL UNIT (TCU)
Trouble Diagnosis (Cont’d)
EL-310

DIAGNOSTIC PROCEDURE 1-(2)
(Hood switch check)
CHECK HOOD SWITCH INPUT SIG-
NAL.
Remove time control unit from fuse
block.
Note: Fuse block (J/B) is very frag-
ile. TCU should be removed care-
fully to avoid breaking the locking
bars.
Check continuity between control unit
terminal

32and ground.
Refer to wiring diagram in EL-317.
OK
OK
Hood switch is OK.
CHECK HOOD SWITCH.
1. Disconnect hood switch connector.
2. Check continuity between hood
switch terminals.
OK
NG
Replace hood switch.
Check the following.

Hood switch ground circuit

Harness for open or short between
control unit and hood switch
Condition Continuity
Hood is open. Yes
Hood is closed. No
Terminals Condition Continuity

1-
2Pushed No
Released Yes
YEL457B Time control
unit connector
YEL458B Hood switch connector

THEFT WARNING SYSTEM
Trouble Diagnoses (Cont’d)
EL-334

WARNING:
IPosition vehicle on a flat and solid surface.
IPlace chocks at front and back of rear wheels.
IDo not remove engine until exhaust system has com-
pletely cooled;
Otherwise, you may burn yourself and/or fire may break
out in fuel line.
IBefore disconnecting fuel hose, release fuel pressure
from fuel line.
Refer to ªReleasing Fuel Pressureº in EC section.
IBe sure to hoist engine and transaxle in a safe manner.
IFor engines not equipped with engine slingers, attach
slingers and bolts described in PARTS CATALOG.
CAUTION:
IWhen lifting engine, be sure to clear surrounding parts.
Use special care for accelerator cable, brake lines and
brake master cylinder.
IIn hoisting the engine, always use engine slingers in a
safe manner.
IWhen removing drive shaft, be careful not to damage
grease seal of transaxle.
Removal
1. Remove engine under cover and hood.
2. Drain coolant from both cylinder block, and radiator.
3. Drain engine oil.
4. Remove vacuum hoses, fuel hoses, wires, harness and con-
nectors.
5. Remove exhaust tubes, ball joints and drive shafts.
6. Remove radiator and fans.
7. Remove drive belts.
8. Remove alternator, compressor and power steering oil pump
from engine.
9. Set a suitable transmission jack under transaxle. Hoist engine
with engine slinger.
10. Remove center member.
SEM092D Center member
Transmission jack
ENGINE REMOVALSR20DE
Components (Cont'd)
EM-107

lConnector numbers that indicate the harness side are
enclosed by a single line.
lConnector numbers that indicate components are enclosed
by a double line.
SWITCH POSITIONS
Switches are shown in wiring diagrams as if the vehicle is in the
ªnormalº condition.
A vehicle is in the ªnormalº condition when:
lignition switch is in the ªLOCKº position,
ldoors, hood and trunk lid/back door are closed,
lpedals are not depressed, and
lparking brake is released.
SGI940
Example:Harness
indication
Single line BCM connector
Component indication
A/C mode switch connector Double line
SGI860 Normally open
Normally closed
HOW TO READ WIRING DIAGRAMS
Description (Cont'd)
GI-16

Evaporative emission (EVAP)
system ...............................EC-QG-25, EC-SR-27
Exhaust gas recirculation (EGR)
valve...........................................EC-QG-244, 305
Exhaust system ................................................FE-9
Exhaust system inspection ............................MA-48
Exterior ............................................................BT-31
F
FCUT - Wiring diagram ..........................EC-CD-101
F/FOG - Wiring diagram................................EL-110
Final drive (FF M/T) ...........................MT-32, 51, 71
Floor trim .........................................................BT-18
Fluid temperature sensor (A/T) .......................AT-94
Fluids..............................................................MA-16
Flywheel (clutch) .............................................CL-14
Flywheel runout..............................EM-60, 117, 177
Fog lamp, front ..............................................EL-110
Fog lamp, rear ...............................................EL-112
F/PUMP - Wiring
diagram..........................EC-QG-338, EC-SR-317
Freeze frame data ................EC-QG-38, EC-SR-50
Fresh vent door control linkage
adjustment ..................................................HA-83
FRO2 - Wiring diagram ........EC-QG-135, 154, 162,
EC-SR-147, 165, 172
FRO2/H - Wiring
diagram..........................EC-QG-168, EC-SR-177
Front axle ..........................................................FA-9
Front bumper ....................................................BT-5
Front disc brake .............................................BR-23
Front door .......................................................BT-13
Front fog lamp .......................................EL-110, 111
Front fog lamp removal and installation ...........BT-5
Front heated oxygen sensor
(HO2S) ......................................EC-QG-132, 139,
EC-SR-144, 150, 156, 162, 170
Front heated oxygen sensor (HO2S)
heater ............................EC-QG-166, EC-SR-175
Front passenger air bag .................................RS-17
Front seat ........................................................BT-40
Front seat belt ..................................................RS-3
Front suspension ............................................FA-26
Front washer .................................................EL-186
Front wiper ....................................................EL-186
FTS - Wiring diagram ............................EC-CD-105
FUEL - Wiring
diagram .........EC-QG-210, 217, EC-SR-213, 220
Fuel cut control (at no load & high
engine speed)....................EC-QG-25, EC-SR-27
Fuel cut solenoid valve ..........................EC-CD-100
Fuel filter ...............................EC-QG-29, EC-SR-31
Fuel filter replacement .......................MA-23, 33, 43
Fuel gauge ............................................EL-141, 146
Fuel injection system....................EC-QG-208, 215,
EC-SR-212, 218,
EC-CD-15, 18
Fuel injector ......................EC-QG-318, EC-SR-302
Fuel line inspection............................MA-22, 33, 43Fuel precautions ................................................GI-7
Fuel pressure check .............EC-QG-29, EC-SR-31
Fuel pressure regulator .........EC-QG-30, EC-SR-32
Fuel pressure release ...........EC-QG-29, EC-SR-31
Fuel pump .........................EC-QG-336, EC-SR-316
Fuel pump and gauge ......................................FE-7
Fuel pump relay ................EC-QG-336, EC-SR-316
Fuel system ......................................................FE-6
Fuel tank vacuum relief
valve ..................................EC-QG-26, EC-SR-28
Fuel temperature sensor .................EC-CD-17, 104
Fuse ..................................................EL-22, Foldout
Fuse block ....................................................Foldout
Fusible link ........................................EL-22, Foldout
G
Garage jack and safety stand .........................GI-47
Gauges..........................................................EL-138
Gear components (M/T) ...........................MT-16, 49
Generic scan tool (GST) .......EC-QG-66, EC-SR-78
GLOW - Wiring diagram ........................EC-CD-120
Glow plug .........................................EC-CD-15, 118
Glow relay ................................................EC-CD-15
GOVNR - Wiring diagram ........................EC-CD-79
Grille - See Exterior ........................................BT-38
Ground distribution..........................................EL-23
H
H/AIM - Wiring diagram ....................EL-87, 93, 200
Harness connector ............................................EL-6
Harness layout ..............................................EL-368
Hazard warning lamp ....................................EL-117
Headlamp..................................................EL-67, 69
Headlamp aiming control ................................EL-87
Headlamp washer .........................................EL-200
Headlining - See Roof trim .............................BT-25
Heated oxygen sensor (HO2S)
(front) ........................................EC-QG-132, 139,
EC-SR-144, 150, 156, 162, 170
Heated oxygen sensor (HO2S) heater
(front) .............................EC-QG-166, EC-SR-175
Heated oxygen sensor (HO2S) heater
(rear) ..............................EC-QG-203, EC-SR-207
Heated oxygen sensor (rear) ...............EC-QG-171,
EC-SR-180, 187,
194, 201
Heated oxygen sensor inspection ...........MA-27, 38
Heated seat .......................................BT-42, EL-234
HEATER - Wiring diagram .............................HA-40
HFC134a (R134a) system service
procedure ..................................................HA-100
HFC134a (R134a) system service tools ..........HA-8
H/LAMP - Wiring diagram ...............................EL-67
Hood..................................................................BT-5
Horn ..............................................................EL-203
HORN - Wiring diagram ................................EL-203
ALPHABETICAL INDEX
IDX-4