Infiniti Q45. Manual — part 232
ELECTRONIC KEY SYSTEM
BL-197
C
D
E
F
G
H
J
K
L
M
A
B
BL
Diagnostic Procedure 2
NIS000XF
1.
CHECK POWER SUPPLY CIRCUIT FOR STEERING LOCK CONTROL UNIT
1.
Turn ignition switch OFF.
2.
Disconnect steering lock control unit connector.
3.
Check voltage between steering lock control unit connector M69
terminal 1 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Check the following.
●
10A fuse [No. 6, located in the fuse block (J/B)]
●
Harness for open or short between fuse block and
steering lock control unit
2.
CHECK GROUND CIRCUIT FOR STEERING LOCK CONTROL UNIT
Check voltage continuity steering lock control unit connector M69
terminal 4 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness.
3.
CHECK ELECTRONIC KEY INSERT SIGNAL 2
1.
Connect steering lock control unit connector.
2.
Check voltage between steering lock control unit connector and
ground.
OK or NG
OK
>> GO TO 4.
NG
>> Check harness for open or short between key switch and steering lock control unit.
1 (Y/G) – Ground
: Battery voltage.
PIIA3130E
4 (B) – Ground
: Continuity should exist.
PIIA3131E
Connector
Terminals
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
M69
2 (PU/W)
Ground
Electronic key
removed from ignition
key cylinder
0
Electronic key
inserted in ignition cyl-
inder
Battery voltage
PIIA3132E
BL-198
ELECTRONIC KEY SYSTEM
4.
CHECK STEERING LOCK CONTROL UNIT
Insert the electronic key into the ignition key cylinder, and immedi-
ately check voltage between steering control unit connector and
ground.
OK or NG
OK
>> Replace steering lock control unit.
NG
>>
●
Replace NATS IMMU.
●
Check harness for open or short between NATS IMMU and steering lock control unit.
Diagnostic Procedure 3
NIS000XG
1.
CHECK SECURITY INDICATOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect the multifunction switch (security indicator lamp) connector.
3.
Check voltage between multifunction switch (security indicator
lamp) connector M83 terminal 20 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Check harness for open or short between fuse block
and multifunction switch (security indicator lamp).
2.
CHECK SECURITY INDICATOR GROUND CIRCUIT
1.
Disconnect the NATS IMMU connector.
2.
Check continuity between multifunction switch (security indicator
lamp) connector M83 terminal 19 and NATS IMMU connector
M32 terminal 15.
3.
Check continuity between NATS IMMU harness connector M32
terminal 15 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness.
Connector
Terminals
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
M69
3 (L)
Ground
Insert electronic key into
ignition key cylinder.
Pointer of tester
should move.
PIIA3133E
20 (Y/G) – Ground
: Battery voltage.
PIIA3134E
19 (G) – 15 (G)
: Continuity should exist.
15 (G) – Ground
: Continuity should not exist.
PIIA3135E
ELECTRONIC KEY SYSTEM
BL-199
C
D
E
F
G
H
J
K
L
M
A
B
BL
3.
CHECK SECURITY INDICATOR GROUND SIGNAL
1.
Connect NATS IMMU connector.
2.
Check continuity between NATS IMMU connector M32 terminal
15 and ground.
OK or NG
OK
>> Replace multifunction switch (security indicator lamp).
NG
>> Replace NATS IMMU
15 (G) – Ground
: Continuity should exist intermit-
tently.
PIIA3136E
BL-200
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
PFP:28591
Component Parts and Harness Connector Location
NIS000XH
NOTE:
If customer reports a “No start” condition, request ALL ELECTRONIC KEY to be brought to the Dealer in case
of a NATS malfunction.
System Description
NIS000XI
IVIS (Infinity Vehicle Immobilizer System – NATS) has the following immobilizer functions:
●
Since only IVIS (NATS) electronic keys, whose ID numbers. have been registered into the ECM and NATS
IMMU of IVIS (NATS), allow the engine to run, operation of a stolen vehicle without a IVIS (NATS) regis-
tered electronic key is prevented by IVIS (NATS).
IVIS (NATS) will immobilize the engine if someone tries to start it without the registered electronic key of
IVIS (NATS).
●
All of the originally supplied electronic key IDs (except for card key and emergency key) have been IVIS
(NATS) registered. If requested by the vehicle owner, a maximum of four key IDs can be registered into
the IVIS (NATS) components.
●
The security indicator blinks when the ignition switch is in “OFF” or “ACC” position. Therefore, IVIS
(NATS) warns outsiders that the vehicle is equipped with the anti-theft system.
●
When IVIS (NATS) detects any malfunctions, the security indicator lamp lights up while electronic key is in
the “ON” position.
●
IVIS (NATS) trouble diagnoses, system initialization and additional registration of other IVIS (NATS) elec-
tronic key IDs must be carried out using CONSULT-II hardware and CONSULT-II IVIS (NATS) software.
When IVIS (NATS) initialization has been completed, the ID of the inserted electronic key is automatically
IVIS (NATS) registered. Then, if necessary, additional registration of IVIS (NATS) electronic key IDs can
be carried out.
Regarding the procedures of IVIS (NATS) initialization and IVIS (NATS) electronic key ID registration,
refer to CONSULT-II operation manual, IVIS/NVIS.
PIIB2118E
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