Nissan Silvia. Instruction — part 211
Time Control System Inspection Table
NMEL0310
Terminal
No.
Wire
color
Connections
Operated condition
Voltage
(Approximate
values)
5
P
Door switch (Driver/Passenger)
OFF (Closed)
,
ON (Open)
5V
,
0V
7
LG/B
Door lock/unlock switch
Neutral
,
Locked
5V
,
0V
8
BR/R
Door lock/unlock switch
Neutral
,
Unlocked
5V
,
0V
9
B
Ground
—
—
12
G/Y
Ignition switch
ON or START
,
OFF or ACC
12V
,
0V
13
R/W
Battery
Battery voltage
12V
20
LG/R
Rear window defogger switch
OFF
,
ON (Ignition key is in “OFF” position)
5V
,
0V
22
W/G
Driver door unlock sensor
Driver door: OFF (Locked)
,
ON (Unlocked)
5V
,
0V
24
BR/W
Driver door switch
Driver door: OFF (Closed)
,
ON (Open)
5V
,
0V
32
R/L
Combination switch (Lighting
switch)
1ST, 2ND Position: ON
,
OFF
12V
,
0V
33
B/P
Key switch
Key inserted
,
Key withdrawn from IGN key cylinder
12V
,
0V
35
R/G
Door lock relay
Door lock/unlock switch: Neutral
,
Locked
12V
,
0V
,
12V
36
R/B
Door lock relay
Door lock/unlock switch: Neutral
,
Unlocked
12V
,
0V
,
12V
37
L/W
Rear window defogger relay
Rear window defogger switch: OFF
,
ON (Ignition key
is in “ON” position)
12V
,
0V*1
38
R/W
Interior room lamp
Driver/Passenger door: OFF (Closed)
,
ON (Open)
(Lamp switch in “Door” position)
12V
,
0V
Ignition key is in “ON” position (Lamp switch in “Door”
position)
12V
Key withdrawn from IGN key cylinder (Lamp switch in
“Door” position)
0V*2
*1: Rear defogger ON (For approximately 15 minutes)
*2: Will increase to 12 volts approximately 20 seconds after the key is withdrawn from IGN key cylinder.
GI
MA
EM
LC
EC
FE
CL
MT
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
UNIFIED METER CONTROL UNIT (TIME CONTROL SYSTEM)
Time Control System Inspection Table
EL-133
Component Parts and Harness Connetor
Location
NMEL0325
SEL251Y
NOTE:
If customer reports a “No Start” condition, request ALL KEYS
to be brought to the Dealer in case of an NATS malfunction.
NATS (NISSAN ANTI-THEFT SYSTEM)
Component Parts and Harness Connetor Location
EL-134
System Description
=NMEL0326
NATS (Nissan Anti-Theft System) has the following immobilizer functions:
I
Since only NATS ignition keys, whose ID nos. have been registered into the ECM and IMMU of NATS,
allow the engine to run, operation of a stolen vehicle without a NATS registered key is prevented by NATS.
That is to say, NATS will immobilize the engine if someone tries to start it without the registered key of
NATS.
I
All of the originally supplied ignition key IDs (except for card plate key) have been NATS registered.
If requested by the vehicle owner, a maximum of five key IDs can be registered into the NATS compo-
nents.
I
The security indicator blinks when the ignition switch is in “OFF” or “ACC” position. Therefore, NATS warns
outsiders that the vehicle is equipped with the anti-theft system.
I
When NATS detects trouble, the security indicator lamp lights up while ignition key is in the “ON” position.
I
NATS trouble diagnoses, system initialization and additional registration of other NATS ignition key IDs
must be carried out using CONSULT-II hardware and CONSULT-II NATS software.
When NATS initialization has been completed, the ID of the inserted ignition key is automatically NATS
registered. Then, if necessary, additional registration of other NATS ignition key IDs can be carried out.
Regarding the procedures of NATS initialization and NATS ignition key ID registration, refer to CONSULT-II
operation instruction, IVIS/NVIS.
I
When servicing a malfunction of the NATS (indicated by lighting up of Security Indicator Lamp) or
registering another NATS ignition key ID no., it may be necessary to re-register original key iden-
tification. Therefore, be sure to receive all keys from vehicle owner.
System Composition
NMEL0327
The immobilizer function of the NATS consists of the following:
I
NATS ignition key
I
NATS immobilizer control unit (NATS IMMU) located in the ignition key cylinder
I
Engine control module (ECM)
I
Security indicator
SEL085W
GI
MA
EM
LC
EC
FE
CL
MT
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
NATS (NISSAN ANTI-THEFT SYSTEM)
System Description
EL-135
Wiring Diagram — NATS —
NMEL0328
TEL825B
NATS (NISSAN ANTI-THEFT SYSTEM)
Wiring Diagram — NATS —
EL-136
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