Infiniti Q45 (FY33). Manual — part 377
SEL906VB
q
A
CHECK ANTENNA AMP. GROUND LINE
CIRCUIT.
1. Turn ignition switch “OFF”.
2. Check continuity between IVIS (NATS)
antenna amp. terminal
q
4
and ground.
(Signal from IVIS (NATS) IMMU termi-
nal
q
10
)
Continuity should exist.
OK
E
NG
Check harness for open or
short between IMMU and
IVIS (NATS) antenna amp.
If harness is OK, replace
IMMU.
After replacing IMMU, per-
form initialization with
CONSULT-II. For the ini-
tialization procedure, refer
to “CONSULT-II operation
manual IVIS/NVIS”.
IVIS (NATS) antenna amp. is malfunction-
ing.
When replacing the amp. hold on to amp.
body. Take care not to pull on amp. har-
ness.
SEL958W
DIAGNOSTIC PROCEDURE 6
Self-diagnostic results:
“ID DISCORD, IMM-ECM” displayed on CONSULT-II screen
SEL566W
Confirm SELF-DIAGNOSTIC
RESULTS “ID DISCORD, IMM-
ECM*” displayed on CONSULT-II
screen.
* “ID DISCORD, IMM-ECM”:
Registered ID of IMMU is in
discord with that of ECM.
Perform initialization with CON-
SULT-II.
Re-register all IVIS (NATS) ignition
key IDs.
For the operation of initialization,
refer to “CONSULT-II operation
manual IVIS/NVIS”.
Initialization
completed
Initialization
with CON-
SULT-II
incomplete or
failed
E
ECM is malfunc-
tioning.
Replace ECM.
Ref. part No. F
Start engine.
END
Ref. part No. F
Perform initializa-
tion with CON-
SULT-II.
For the operation
of initialization,
refer to “CON-
SULT-II operation
manual IVIS/NVIS”.
GI
MA
EM
LC
EC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
IDX
IVIS (Infiniti Vehicle Immobilizer System — NATS)
Trouble Diagnoses (Cont’d)
H
H
H
H
H
H
EL-499
SEL959W
DIAGNOSTIC PROCEDURE 7
Self-diagnostic results:
“ELECTRONIC/MINGLE NOISE” displayed on CONSULT-II
screen
Confirm SELF-DIAGNOSTIC RESULTS “ELECTRONIC/MINGLE
NOISE” displayed on CONSULT-II screen.
F
Turn off or remove any possible noise sources.
Touch “ERASE” on CONSULT-II SELF-DIAGNOSTIC RESULTS
screen.
Start engine.
OK
NG
END
IVIS (Infiniti Vehicle Immobilizer System — NATS)
Trouble Diagnoses (Cont’d)
H
H
H
H
EL-500
SEL931U
SEL505UF
DIAGNOSTIC PROCEDURE 8
“SECURITY IND. DOES NOT LIGHT UP”
Check 10A fuse [No.
28
, located in the
fuse block (J/B)].
OK
E
NG
Replace fuse.
IVIS (NATS) INITIALIZATION
1) Install the 10A fuse.
2) Perform initialization with CON-
SULT-II.
For the operation of
initialization, refer to “CON-
SULT-II operation manual IVIS/
NVIS”.
Turn ignition switch “OFF”.
Start engine and turn ignition switch
“OFF”.
Check the security ind. lighting.
NG
E
OK
END
Check voltage between security ind. con-
nector terminal
q
1
and ground.
Voltage: Battery voltage
OK
E
NG
Check harness for open or
short between fuse and
security ind.
CHECK INDICATOR LAMP.
OK
E
NG
Repair harness.
CHECK IVIS (NATS) IMMU FUNCTION.
1. Connect IVIS (NATS) IMMU connector.
2. Disconnect security ind. connector.
3. Check continuity between IVIS (NATS)
IMMU terminal
q
11
and ground.
Continuity should exist intermit-
tently.
OK
E
NG
IVIS (NATS) IMMU is mal-
functioning. Replace IVIS
(NATS) IMMU.
Perform initializa-
tion with CON-
SULT-II.
For the operation of
initialization, refer
to “CONSULT-II
operation manual
IVIS/NVIS”.
Check harness for open or short between
security indicator and IVIS (NATS) IMMU.
GI
MA
EM
LC
EC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
IDX
IVIS (Infiniti Vehicle Immobilizer System — NATS)
Trouble Diagnoses (Cont’d)
H
H
H
H
H
H
H
H
H
EL-501
SEL960W
DIAGNOSTIC PROCEDURE 9
Self-diagnostic results:
“LOCK MODE” displayed on CONSULT-II screen
SEL566W
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 posi-
tion 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
E
Yes
System is OK.
(Now the system is
escaped from “LOCK
MODE”.)
CHECK IVIS (NATS) ANTENNA AMP.
INSTALLATION.
Refer to “How to Replace IVIS (NATS)
Antenna Amp.” in EL-503.
OK
E
NG
Reinstall IVIS (NATS)
antenna amp. correctly.
PERFORM INITIALISATION
Perform initialisation with CONSULT-II.
For the initialisation procedure, refer to
“CONSULT-II operation manual IVIS/
NVIS”.
Can the system be initialized?
Note: If the initialisation is incompleted or
failed, CONSULT-II shows
mes-
sage on the screen.
No
E
Yes
System is OK.
Go to DIAGNOSTIC PROCEDURE 5,
EL-498 to check “CHAIN OF IMMU-KEY”.
IVIS (Infiniti Vehicle Immobilizer System — NATS)
Trouble Diagnoses (Cont’d)
H
H
H
H
EL-502
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