NISSAN PRIMERA 1999 Electronic Repair Manual

DIAGNOSTIC PROCEDURE 6
—With security indicator on dashboard—
“SECURITY INDICATOR LAMP DOES NOT LIGHT UP”
Check 10A fuse [No.16 , located in the
fuse block (J/B)].
OK
NG
Replace fuse.
NATS INITIALISATION
1) Install the 10A fuse.
2) Perform initialisation with
CONSULT-II.
For the operation of
initialisation, refer to“CON-
SULT-II operation manual
NATS”.
Turn ignition switch“OFF”.
Start engine and turn ignition switch
“OFF”.
Check the security ind. lighting.
NG
OK
INSPECTION END
Check voltage between security indica-
tor lamp connector terminal

2and
ground.
Voltage: Battery voltage
OK
NG
Check harness for open
or short between fuse
and security indicator
lamp.
CHECK INDICATOR LAMP.
OK
NG
Replace indicator lamp.
CHECK NATS IMMU FUNCTION.
1. Connect NATS IMMU connector.
2. Disconnect security indicator lamp
connector.
3. Check continuity between NATS
IMMU terminal

6and ground.
Continuity should exist intermit-
tently.
OK
NG
NATS IMMU is malfunc-
tioning. Replace IMMU.
Perform initialisa-
tion with CON-
SULT-II.
For the operation
of initialisation,
refer to“CON-
SULT-II operation
manual NATS”.
Check harness for open or short
between security indicator and NATS
IMMU.
YEL482B
Security indicator
lamp connector
YEL483B
IMMU connector









NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont’d)
EL-359

DIAGNOSTIC PROCEDURE 6
—With security indicator built-in combination
meter—
“SECURITY INDICATOR LAMP DOES NOT LIGHT UP”
Check 10A fuse [No.16 , located in the
fuse block (J/B)].
OK
NG
Replace fuse.
NATS INITIALISATION
1) Install the 10A fuse.
2) Perform initialisation with
CONSULT-II.
For the operation of
initialisation, refer to“CON-
SULT-II operation manual
NATS”.
Turn ignition switch“OFF”.
Start engine and turn ignition switch
“OFF”.
Check the security ind. lighting.
NG
OK
INSPECTION END
Check voltage between combination
meter connector terminal

2and
ground.
Voltage: Battery voltage
OK
NG
Check harness for open
or short between fuse
and combination meter.
CHECK INDICATOR LAMP.
OK
NG
Replace combination
meter.
CHECK NATS IMMU FUNCTION.
1. Connect NATS IMMU connector.
2. Disconnect combination meter con-
nector.
3. Check continuity between NATS
IMMU terminal

6and ground.
Continuity should exist intermit-
tently.
OK
NG
NATS IMMU is malfunc-
tioning. Replace IMMU.
Perform initialisa-
tion with CON-
SULT-II.
For the operation
of initialisation,
refer to“CON-
SULT-II operation
manual NATS”.
Check harness for open or short
between combination meter and NATS
IMMU.
YEL037D
YEL483B
IMMU connector









NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont’d)
EL-360

DIAGNOSTIC PROCEDURE 7
Self-diagnostic results:
“LOCK MODE”displayed on CONSULT-II screen
Confirm SELF-DIAGNOSTIC
RESULTS“LOCK MODE”is dis-
played on CONSULT-II screen.
1. Turn the ignition switch to OFF posi-
tion.
2. Turn the ignition key switch to ON
position with a registered key.
(Do not start engine.) Wait for 5 sec-
onds.
3. Return the key to the OFF position.
4. Repeat steps 2 and 3 twice (total of
three cycles).
5. Start the engine.
Can the engine start?
No
Ye s
System is OK.
(Now the system is
escaped from“LOCK
MODE”.)
CHECK NATS IMMU INSTALLATION.
Refer to“How to Replace NATS IMMU”
in EL-363.
OK
NG
Reinstall NATS IMMU
correctly.
PERFORM INITIALISATION.
Perform initialisation with CONSULT-II.
For the initialisation procedure, refer to
“CONSULT-II operation manual NATS”.
Can the system be initialized?
Note: If the initialisation is incompleted
or failed, CONSULT-II shows
message on the screen.
No
Ye s
System is OK.
Go to DIAGNOSTIC PROCEDURE 4,
EL-356 to check“CHAIN OF IMMU-
KEY”.
SELF DIAGNOSIS
TIME DTC RESULTS
LOCK MODE0
YEL484B
INITIALIZATION
FA I L
THEN IGN KEY SW ‘OFF’ AND
‘ON’, AFTER CONFIRMING
SELF-DIAG AND PASSWORD,
PERFORM C/U INITIALIZATION
AGAIN.
IMMU INITIALIZATION
YEL479B




NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont’d)
EL-361

DIAGNOSTIC PROCEDURE 8
Perform initialization with CONSULT-II
Check the following harness connector
connection.
E125/M70
M85
Then initialize NATS. For the operation
of initialization, refer to“CONSULT-II
operation manual NATS”.
Does the security indicator blink just
after the initialization?
No
Ye s
System is OK.
(The malfunction is
caused by improper con-
nector connection.)
CHECK GROUND CIRCUIT FOR
DONGLE UNIT.
Check continuity between dongle unit
terminal

3and ground.
Continuity should exist.
Ye s
No
Repair harness.
CHECK INTERFACE CIRCUIT.
1. Check continuity between IMMU ter-
minal

2and dongle unit terminal

5(Open circuit check)
Continuity should exist.
2. Check continuity between IMMU ter-
minal

2and ground. (Short circuit
check)
Continuity should not exist.
Ye s
No
Repair harness.
Dongle unit is malfunctioning.
1. Replace dongle unit.
2. Perform initialisation with CONSULT-
II.
For the initialisation procedure, refer
to“CONSULT-II operation manual
NATS”.
SEL417W
Dongle unit connector
SEL418W
IMMU connectorDongle unit
connector
Short circuit check
SEL419WShort circuit check IMMU connector



NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont’d)
EL-362

How to Replace NATS IMMU
NOTE:

If NATS IMMU is not installed correctly, NATS system will
not operate properly and SELF-DIAG RESULTS on CON-
SULT-II screen will show“LOCK MODE”or“CHAIN OF
IMMU-KEY”.
SEL096WA
NVIS (NATS) IMMU
NATS (Nissan Anti-Theft System)
EL-363

NOTE
NATS (Nissan Anti-Theft System)
EL-364

Engine Compartment
YEL234C Front wiper motor (LHD models)
ABS actuator and electric unit
(Control unit)Relay boxFront wiper motor (RHD models)
Glow relay (CD engine models) Fusible link and fuse box
Cooling fan relay-1 Headlamp relay LH
Horn relay
Cooling fan relay-3
Accessory relayCooling fan relay-2 or power fuse
Air conditioner relay
Headlamp relay RH
Front wiper relayGlow relay
(CD engine models)
Rear wiper relayPark/Neutral position relay ECM relay
LOCATION OF ELECTRICAL UNITS
EL-365

Passenger Compartment
LHD MODELS
YEL235C Time control unit
Blower
relay
Circuit
breaker-1Indicator control unit
Stop lamp switchNATS IMMU
Auto level control unit
Headlamp washer timer
Ignition
relay
Circuit breaker-2
Theft warning horn relay
Fuse block (J/B)
Rear window defogger relayAir bag diagnosis sensor unit
TCM (Transmission control module)Daytime light control unit
Fuse block (J/B)
Time control unt
Power window relay
Front fog lamp relay
Fuel pump relayA/C LOW relay, A/C MED-LOW relay, A/C MED-HIGH relay, A/C HIGH relayECM
LOCATION OF ELECTRICAL UNITS
EL-366

RHD MODELS
YEL236C NATS IMMU
Auto level control unitHeadlamp washer timer
Stop lamp switch
A/C LOW relay. A/C MED-LOW relay. A/C MED-HIGH relay. A/C HIGH relayFuse block (J/B)
Power window relay Air bag diagnosis sensor unit
ECM
Front fog lamp relay TCM (Transmission control module)
Fuel pump relay Indicator control unit
Time control unit
Fuse block (J/B)
Time control unit
Ignition
relay
Circuit
breaker-1
Blower relay
Circuit breaker-2
Theft warning horn relay
Rear window defogger relay
LOCATION OF ELECTRICAL UNITS
Passenger Compartment (Cont’d)
EL-367

OutlineLHD MODELS
RHD MODELS
YEL367B Rear door harness RH
(5-door Hatchback and Wagon)
Front door harness RHRoom lamp harness
Back door harness
Hatchback and Wagon
Rear door harness LH
(5-door Hatchback and Wagon)
Body harness
Front door harness LH Main harness
Engine room harness
Engine control harness
Sedan
Tail sub harnessTail harness
Rear door harness RH
Rear door har-
ness LH
Body harness Tail harness No. 2
Console harness Air conditioner harnessConsole harness
YEL237C Rear door harness RH
(5-door Hatchback and Wagon)
Main harnessFront door
harness RHRoom lamp harness
Back door harness
Hatchback and Wagon
Rear door harness LH
(5-door Hatchback and Wagon)
Body harness
Front door harness LH
Engine room harness
Engine control harness
Sedan
Tail harness
Rear door harness RH
Rear door
harness LH
Body harness Tail sub harness
Tail harness No. 2
Console harness
Air conditioner harness
Console harness
HARNESS LAYOUT
EL-368