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SYMPTOM MATRIX CHART 1
NAEL0418S02
(Self-diagnosis related item)
SYMPTOM
Displayed “SELF-DIAG
RESULTS” on CON-
SULT-II screen.
DIAGNOSTIC PROCE-
DURE
(Reference page)
SYSTEM
(Malfunctioning part or
mode)
REFERENCE PART NO.
OF ILLUSTRATION ON
NEXT PAGE
I Security indicator
lighting up*
I Engine cannot be
started.
ECM INT CIRC-IMMU
PROCEDURE 1
(EL-393)
ECM B
CHAIN OF ECM-IMMU
PROCEDURE 2
(EL-394)
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 IMMU
circuit
C1
Open circuit in ignition
line of IMMU circuit
C2
Open circuit in ground
line of IMMU circuit
C3
Open circuit in commu-
nication line between
IMMU and ECM
C4
Short circuit between
IMMU and ECM com-
munication line and bat-
tery voltage line
C4
Short circuit between
IMMU and ECM com-
munication line and
ground line
C4
ECM B
IMMU A
DIFFERENCE OF KEY
PROCEDURE 3
(EL-398)
Unregistered key D
IMMU A
CHAIN OF IMMU-KEY
PROCEDURE 4
(EL-399)
Malfunction of key ID
chip
E
IMMU A
ID DISCORD, IMM-
ECM
PROCEDURE 5
(EL-400)
System initialization has
not yet been com-
pleted.
F
ECM F
LOCK MODE
PROCEDURE 7
(EL-403)
LOCK MODE D
I MIL staying ON
I Security indicator
lighting up*
DON’T ERASE
BEFORE CHECKING
ENG DIAG
WORK FLOW
(EL-391)
Engine trouble data and
NVIS (NATS) trouble
data have been
detected in ECM
—
*: When NVIS (NATS) detects trouble, the security indicator lights up while ignition key is in the “ON” position.
NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM — NATS)
Trouble Diagnoses (Cont’d)
EL-392
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