Infiniti G35 (V35). Manual — part 210
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-227
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Trouble Diagnosis Procedure/Without Intelligent Key System
NIS001KV
WORK FLOW
SEL024X
BL-228
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Trouble Diagnoses
NIS001KW
SYMPTOM MATRIX CHART 1
Self-diagnosis related item
●
*1: When IVIS (NATS) detects trouble, the security indicator lights up while ignition key is in the “ON” position.
●
*2: With Intelligent Key system
●
*3: Without Intelligent Key system
SYMPTOM MATRIX CHART 2
Non self-diagnosis related item
*: CONSULT-II self-diagnostic results display screen “no malfunction is detected”.
SYMPTOM
Displayed “SELF-DIAG
RESULTS” on CON-
SULT-II screen.
DIAGNOSTIC PROCE-
DURE
(Reference page)
SYSTEM
(Malfunctioning part or mode)
●
Security indicator
lighting up*
●
Engine cannot be
started
CHAIN OF ECM-IMMU
[P1612]
PROCEDURE 1
(
In rare case, “CHAIN OF ECM-IMMU” might be stored
during key registration procedure, even if the system is
not malfunctioning.
Open circuit in battery voltage line of BCM circuit
Open circuit in ignition line of BCM circuit
Open circuit in ground line of BCM circuit
Open or short circuit between BCM and ECM communi-
cation line
ECM
BCM
DIFFERENCE OF KEY
[P1615]
PROCEDURE 2
(
Unregistered key
BCM
CHAIN OF IMMU-KEY
[P1614]
PROCEDURE 3
(
Malfunction of key ID chip
Communication line between ANT/ AMP and BCM:
Open circuit or short circuit of battery voltage line or
ground line
Open circuit in power source line of ANT/ AMP circuit
Open circuit in ground line of ANT/ AMP circuit
NATS antenna amp.
BCM
ID DISCORD, IMM-
ECM
[P1611]
PROCEDURE 4
(
System initialization has not yet been completed.
ECM
●
Security indicator
lighting up*1
●
Engine cannot be
started
LOCK MODE
[P1610]
PROCEDURE 6
(
When the starting operation is carried out five or more
times consecutively under the following conditions, IVIS
(NATS) will shift the mode to one which prevents the
engine from being started.
●
Unregistered ignition key is used.
●
BCM or ECM’s malfunctioning.
Security indicator
lighting up*1
DON'T ERASE
BEFORE CHECKING
ENG DIAG
WORK FLOW
(
2
,
3
)
Engine trouble data and IVIS (NATS) trouble data have
been detected in ECM
SYMPTOM
DIAGNOSTIC PROCEDURE
(Reference page)
SYSTEM
(Malfunctioning part or mode)
Security indicator does not light up*.
PROCEDURE 5
(
Security indictor.
Open circuit between Fuse and BCM
BCM
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-229
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BL
Diagnostic Procedure 1
NIS001KX
Self-diagnostic results:
“CHAIN OF ECM-IMMU” displayed on CONSULT-II screen
First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-II, then perform the trouble diagno-
sis of malfunction system indicated “SELF-DIAG RESULTS” of “BCM”. Refer to
munication Inspection Using CONSULT-II (Self-Diagnosis)"
1.
CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF ECM-IMMU”
displayed on CONSULT-II screen.
NOTE:
In rare case, “CHAIN OF ECM-IMMU” might be stored during key
registration procedure, even if the system is not malfunctioning.
Is CONSULT-II screen displayed as shown in figure?
Yes
>> GO TO 2.
No
BL-228, "SYMPTOM MATRIX CHART 1"
2.
CHECK POWER SUPPLY CIRCUIT FOR BCM
1.
Turn ignition switch OFF.
2.
Disconnect BCM connector.
3.
Check voltage between BCM and ground with CONSULT-II or tester.
OK or NG
OK
>> GO TO 3.
NG
>> Check the following.
●
50A fusible link (letter F , located in the fuse and fus-
ible link box)
●
10A fuse [No.18, located in the fuse block (J/B)]
●
Harness for open or short between fusible link and BCM
●
Harness for open or short between fuse and BCM
3.
CHECK IGNITION SWITCH ON SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between BCM connector M1 terminal 38 and ground with CONSULT-II or tester.
OK or NG
OK
>> GO TO 4.
NG
>> Check the following.
●
10A fuse [No. 1, located in the fuse block (J/B)]
●
Harness for open or short between fuse and BCM
PIIA1260E
Connector
Terminals
(Wire color)
Voltage [V]
(Approx.)
(+)
(-)
M2
42 (GY)
Ground
Battery voltage
55 (W/R)
PIIA6143E
38 (W/L) - Ground
: Battery voltage
PIIA6144E
BL-230
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
4.
CHECK GROUND CIRCUIT FOR BCM
1.
Turn ignition switch OFF.
2.
Check continuity between BCM connector M2 terminal 52 and ground.
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace harness.
5.
REPLACE BCM
1.
Replace BCM
2.
Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”.
Does the engine start?
Yes
>> BCM is malfunctioning.
●
Replace BCM.
●
Perform initialization with CONSULT-II
●
For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”
No
>> ECM is malfunctioning.
●
Replace ECM.
●
Perform initialization or re-communicating function
●
For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”
●
For re-communicating function, refer to
BL-217, "ECM Re-Communicating Function"
52 (B) – Ground
: Continuity should exist.
PIIA9326E
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