NISSAN PATROL 2000 Electronic Repair Manual

DIAGNOSTIC PROCEDURE 6
Self-diagnostic results:
ªLOCK MODEº displayed on CONSULT-II screen
Confirm SELF-DIAGNOSTIC RESULTS
ªLOCK MODEº is displayed on CON-
SULT-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 5 seconds.
3. Return the key to the OFF position.
4. Repeat steps 2 and 3 twice (total of
three cycles).
5. Start the engine.
Does the engine start?
No
cYes
System is OK.
(Now the system is
escaped from ªLOCK
MODEº.)
CHECK NATS IMMU INSTALLATION.
Refer to ªHow to Replace NATS IMMUº in
EL-1183.
OK
cNG
Reinstall NATS IMMU cor-
rectly.
PERFORM INITIALIZATION.
Perform initialization with CONSULT-II.
For the initialization procedure, refer to
ªCONSULT-II operation manual NATSº.
Can the system be initialized?
Note: If the initialization is incompleted or
failed, CONSULT-II shows
message on the screen.
No
cYes
System is OK.
Go to DIAGNOSTIC PROCEDURE 4,
EL-1179 to check ªCHAIN OF IMMU-
KEYº.
SEL167X
SEL566W
.
.
.
.
NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont'd)
EL-1181

DIAGNOSTIC PROCEDURE 7
ªSECURITY IND. DOES NOT LIGHT UPº
Check 7.5A fuse [No.24, located in the
fuse block (J/B)].
OK
cNG
Replace fuse.
NATS INITIALIZATION
1) Install the 7.5A fuse.
2) Perform initialization with CON-
SULT-II.
For the operation of
initialization, refer to ªCON-
SULT-II operation manual
NATSº.
Turn ignition switch ªOFFº.
Start engine and turn ignition switch
ªOFFº.
Check the security ind. lighting.
NG
cOK
END
Check voltage between security ind. con-
nector terminal
V1and ground.
Voltage: Battery voltage
OK
cNG
Check harness for open or
short between fuse and
security ind.
CHECK INDICATOR LAMP.
OK
cNG
Repair harness.
CHECK NATS IMMU FUNCTION.
1. Connect NATS IMMU connector.
2. Disconnect security ind. connector.
3. Check continuity between NATS IMMU
terminal
V6and ground.
Continuity should exist intermit-
tently.
OK
cNG
NATS IMMU is malfunc-
tioning. Replace IMMU.
Perform initializa-
tion with CON-
SULT-II.
For the operation
of initialization,
refer to ªCON-
SULT-II operation
manual NATSº.
Check harness for open or short between
security indicator and NATS IMMU.
SEL931UA
SEL164X
.
.
.
.
.
.
.
.
.
NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont'd)
EL-1182

DIAGNOSTIC PROCEDURE 8
CHECK GROUND CIRCUIT FOR
DONGLE UNIT.
Check continuity between dongle unit ter-
minal
V1and ground.
Continuity should exist.
Yes
cNo
Repair harness.
Ref. part No. C6
CHECK INTERFACE CIRCUIT.
1. Check continuity between IMMU termi-
nal
V2and dongle unit terminalV7.
(Open circuit check)
Continuity should exist.
2. Check continuity between IMMU termi-
nal
V2and ground. (Short circuit
check)
Continuity should exist.
Yes
cNo
Repair harness.
Ref. part No. C5
Dongle unit is malfunctioning.
1. Replace dongle unit.
Ref. part No. G
2. Perform initialization with CONSULT-II.
For the initialization procedure, refer to
ªCONSULT-II operation manual NATSº.
How to Replace NATS IMMU
NOTE:
+If NATS IMMU is not installed correctly, NATS system
will not operate properly and SELF-DIAG RESULTS on
CONSULT-II screen will show ªLOCK MODEº.
SEL160X
SEL161X
SEL162X
SEL096WD
.
.
NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont'd)
EL-1183

NOTE
NATS (Nissan Anti-Theft System)
EL-1184

Engine Compartment
CEL101M
LOCATION OF ELECTRICAL UNITS
EL-1185

Passenger Compartment Ð LHD Models
CEL102M
LOCATION OF ELECTRICAL UNITS
EL-1186

CEL103M
LOCATION OF ELECTRICAL UNITS
Passenger Compartment Ð LHD Models
(Cont'd)
EL-1187

Passenger Compartment Ð RHD Models
CEL104M
LOCATION OF ELECTRICAL UNITS
EL-1188

CEL105M
LOCATION OF ELECTRICAL UNITS
Passenger Compartment Ð RHD Models
(Cont'd)
EL-1189

NOTE
LOCATION OF ELECTRICAL UNITS
EL-1190