DIAGNOSTIC PROCEDURE 2
(Security indicator check)
CHECK INDICATOR LAMP OUTPUT
SIGNAL.
1) Remove time control unit from fuse
block.
Note: Fuse block (J/B) is very
fragile. TCU should be removed
carefully to avoid breaking the
locking bars.
2) Check voltage between control unit
terminal
18and ground.
Battery voltage should exist.
Refer to wiring diagram EL-316.
NG
OK
Security indicator lamp is
OK.
Security
indicator on
dashboardSecurity indica-
tor built-in com-
bination meterA
CHECK INDICATOR LAMP.
OK
NG
Replace indicator lamp.
CHECK POWER SUPPLY CIRCUIT
FOR INDICATOR.
1) Disconnect security indicator con-
nector.
2) Check voltage between indicator
terminal
2and ground.
Battery voltage should exist.
OK
NG
Check the following:
10A fuse [No.16 ,
located in the fuse
block (J/B)]
Harness for open or
short between security
indicator lamp and
fuse
Check harness for open or short
between security indicator and control
unit.
A
CHECK INDICATOR LAMP.
OK
NG
Replace combination
meter.
CHECK POWER SUPPLY CIRCUIT
FOR INDICATOR.
1) Disconnect combination meter con-
nector.
2) Check voltage between indicator
terminal
23and ground.
Battery voltage should exist.
OK
NG
Check the following:
10A fuse [No.16 ,
located in the fuse
block (J/B)]
Harness for open or
short between combi-
nation meter and fuse
Check harness for open or short
between combination meter and con-
trol unit.
YEL461B Time control
unit connector
YEL462B Security indicator
connector
YEL037D
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont’d)
EL-336
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