Page 2730 of 3189

First perform the “SELF-DIAG RESULTS” in “SMART ENTRANCE”
with CONSULT-II, when perform the each trouble diagnosis. Refer
to EL-390, “CONSULT-II INSPECTION PROCEDURE”.
SYMPTOM MATRIX CHART 1NJEL0590S02Self-diagnosis related item
SYMPTOMDisplayed “SELF-DIAG
RESULTS” on CON-
SULT-II screen.DIAGNOSTIC PROCE-
DURE
(Reference page)SYSTEM
(Malfunctioning part or
mode)REFERENCE PART
NO. OF ILLUSTRATION
ON SYSTEM DIAGRAM
Security indicator
lighting up*
Engine cannot be
startedECM INT CIRC-IMMUPROCEDURE 1
(EL-396, “Diagnostic
Procedure 1”)ECM B
CHAIN OF ECM-IMMUPROCEDURE 2
(EL-397, “Diagnostic
Procedure 2”)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
circuitC1
Open circuit in ignition
line of IMMU circuitC2
Open circuit in ground
line of IMMU circuitC3
Open circuit in commu-
nication line between
IMMU and ECMC4
Short circuit between
IMMU and ECM com-
munication line and bat-
tery voltage lineC4
Short circuit between
IMMU and ECM com-
munication line and
ground lineC4
ECM B
IMMU A
DIFFERENCE OF KEYPROCEDURE 3
(EL-399, “Diagnostic
Procedure 3”)Unregistered key D
IMMU A
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-394
Page 2731 of 3189

SYMPTOMDisplayed “SELF-DIAG
RESULTS” on CON-
SULT-II screen.DIAGNOSTIC PROCE-
DURE
(Reference page)SYSTEM
(Malfunctioning part or
mode)REFERENCE PART
NO. OF ILLUSTRATION
ON SYSTEM DIAGRAM
Security indicator
lighting up*
Engine cannot be
started
CHAIN OF IMMU-KEYPROCEDURE 4
(EL-400, “Diagnostic
Procedure 4”)Malfunction of key ID
chipE5
Communication line
between ANT/ AMP and
IMMU:
Open circuit or short
circuit of battery voltage
line or ground lineE1
E2
Open circuit in power
source line of ANT/ AMP
circuitE3
Open circuit in ground
line of ANT/ AMP circuitE4
Antenna amp. E6
Dongle unit G
IMMU A
ID DISCORD, IMM-ECMPROCEDURE 5
(EL-403, “Diagnostic
Procedure 5”)System initialization has
not yet been completed.F
ECM B
LOCK MODEPROCEDURE 7
(EL-406, “Diagnostic
Procedure 7”)LOCK MODE D
Security indicator light-
ing up*DON’T ERASE
BEFORE CHECKING
ENG DIAGWORK FLOW
(EL-393, “Work Flow”)Engine trouble data and
NATS trouble data have
been detected in ECM—
*: When NATS detects trouble, the security indicator lights up while ignition key is in the “ON” position.
SYMPTOM MATRIX CHART 2NJEL0590S03Non self-diagnosis related item
SYMPTOMDIAGNOSTIC PROCEDURE
(Reference page)SYSTEM
(Malfunctioning part or mode)REFERENCE PART NO. OF
ILLUSTRATION ON SYSTEM
DIAGRAM
Security ind. does not light up.PROCEDURE 6
(EL-404, “Diagnostic Proce-
dure 6”)Security ind. —
Open circuit between Fuse and
IMMU—
Continuation of initialization
mode—
IMMU A
Security ind. does not blink just
after initialization even if the
vehicle is equipped with dongle
unit.PROCEDURE 8
(EL-407, “RHD models only:
Diagnostic Procedure 8”)NATS might be initialized with-
out connecting dongle unit
properly.—
Security ind. does not blink just
after ignition switch is turned to
ON when some malfunction
related to NATS is detected
even if the vehicle is equipped
with dongle unit.Open circuit in ground line of
dongle unit circuitC6
Open or short circuit in com-
munication line between IMMU
and dongle unitC5
Dongle unit G
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-395
Page 2733 of 3189

DIAGNOSTIC PROCEDURE 2=NJEL0590S06Self-diagnostic results:
“CHAIN OF ECM-IMMU” displayed on CONSULT-II screen
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 mal-
functioning.
SEL292W
Is CONSULT-II screen displayed as above?
Ye s G O T O 2 .
No GO TO EL-394, “SYMPTOM MATRIX CHART 1”.
2 CHECK POWER SUPPLY CIRCUIT FOR IMMU
1. Disconnect IMMU connector.
2. Check voltage between IMMU (Smart entrance control unit) harness connector M195 terminal 56 (R/B) and ground
CONSULT-II or tester.
SIIA1669E
Battery voltage should exist.
OK or NG
OK GO TO 3.
NGCheck the following
10A fuse [No. 12, located in the fuse block (J/B)]
Harness for open or short between fuse and IMMU connector
Ref. Part No. C1
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-397
Page 2734 of 3189

3 CHECK IGN SW. ON SIGNAL
1. Turn ignition switch ON.
2. Check voltage between IMMU (Smart entrance control unit) harness connector M42 terminal 29 (Y/G) and ground with
CONSULT-II or tester.
SIIA1668E
Battery voltage should exist.
OK or NG
OK GO TO 4.
NoCheck the following
10A fuse [No. 10, located in the fuse block (J/B)]
Harness for open or short between fuse and IMMU connector
Ref. part No. C2
4 CHECK GROUND CIRCUIT FOR IMMU
1. Turn ignition OFF.
2. Check continuity between IMMU (Smart entrance control unit) harness connector M195 terminal 53 (B) and ground.
SIIA1565E
Continuity should exist.
OK or NG
OK GO TO 5.
NG Repair harness.Ref. part No. C3
5 REPLACE IMMU (SMART ENTRANCE CONTROL UNIT)
1. Replace IMMU (Smart entrance control unit)Ref. part No. A
2. Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II operation manual NATS”.
Does the engine start?
OK IMMU (Smart entrance control unit) is malfunctioning.
No ECM is malfunctioning.
Replace ECM.Ref. part No. B
Perform initialization with CONSULT-II
For initialization, refer to “CONSULT-II operation manual NATS”
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-398
Page 2740 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual DIAGNOSTIC PROCEDURE 6=NJEL0590S10“SECURITY INDICATOR LAMP DOES NOT LIGHT UP”
1 CHECK FUSE
Check 10A fuse [No. 12 and No. 30, located in the fuse block (J/B)]
10A fuse OK?
OK GO TO 2.
NG Replace f NISSAN ALMERA N16 2003 Electronic Repair Manual DIAGNOSTIC PROCEDURE 6=NJEL0590S10“SECURITY INDICATOR LAMP DOES NOT LIGHT UP”
1 CHECK FUSE
Check 10A fuse [No. 12 and No. 30, located in the fuse block (J/B)]
10A fuse OK?
OK GO TO 2.
NG Replace f](/manual-img/5/57350/w960_57350-2739.png)
DIAGNOSTIC PROCEDURE 6=NJEL0590S10“SECURITY INDICATOR LAMP DOES NOT LIGHT UP”
1 CHECK FUSE
Check 10A fuse [No. 12 and No. 30, located in the fuse block (J/B)]
10A fuse OK?
OK GO TO 2.
NG Replace fuse.
2 CHECK SECURITY INDICATOR LAMP
1. Install 10A fuse.
2. Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Manual NATS”.
3. Turn ignition switch OFF.
4. Start engine and turn ignition switch OFF.
5. Check the security indicator lamp lighting.
Security indicator lamp should be light up.
OK or NG
OK INSPECTION END.
NG GO TO 3.
3 CHECK SECURITY INDICATOR LAMP POWER SUPPLY CIRCUIT
1. Disconnect combination meter connector.
2. Check voltage between combination meter harness connector M171 terminal 34 and ground.
YEL842D
Battery voltage should exist.
OK or NG
OK GO TO 4.
NG Check harness for open or short between fuse and security indicator lamp.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-404
Page 2744 of 3189

3 CHECK INTERFACE CIRCUIT
1. Disconnect dongle unit and IMMU (Smart entrance control unit) harness connector.
2. Check continuity between IMMU (Smart entrance control unit) harness connector M193 terminal 9 (PU) and dongle unit
harness connector M102 terminal 7 (PU).
SIIA1675E
Continuity should exist.
3. Check continuity between (Smart entrance control unit) harness connector M193 terminal 9 (PU) and ground.
Continuity should not exist.
OK or NG
OKDongle unit is malfunctioning.
1. Replace dongle unit.
2. Perform initialization with CONSULT-II.
For initialization procedure, refer to “CONSULT-II Operation Manual NATS”.
NG Repair harness.
DIAGNOSTIC PROCEDURE 9NJEL0590S13M/T ModelsNJEL0590S1301
1 CHECK POWER SUPPLY CIRCUIT FOR IMMU
1. Disconnect IMMU (Smart entrance control unit) connector.
2. Check voltage between IMMU (Smart entrance control unit) harness connector M195 terminal 58 (B/W) and ground
with CONSULT-II or tester.
SIIA1684E
Ignition switch START position:
Battery voltage should exist.
Ignition switch OFF position: 0V
OK or NG
OK GO TO 2.
NGCheck the following
Ignition switch
Harness for open or short between ignition switch and IMMU (Smart entrancecontrol
unit)
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-408
Page 2745 of 3189

2 CHECK START SIGNAL
1. Turn ignition switch START.
2. Check voltage between IMMU (Smart entrance control unit) harness connector M195 terminal 59 (B/Y) and ground with
CONSULT-II or tester.
SIIA1685E
Battery voltage should exist.
OK or NG
OK GO TO 3.
NG Replace IMMU (Smart entrance control unit).
3 CHECK STARTER CIRCUIT FOR IMMU
1. Turn ignition OFF.
2. Disconnect IMMU (Smart entrance control unit) harness connector and starter motor harness connector.
3. Check continuity between IMMU (Smart entrance control unit) harness connector M195 terminal 59 (B/Y) and starter
motor harness connector F19 (TD), F41 (QG) or F42 (GC) terminal 1 (B/Y).
SIIA1686E
Continuity should exist.
OK or NG
OK Check starter motor. Refer to SC-13, “STARTING SYSTEM”.
NG Harness for open or short between IMMU (Smart entrance control unit) andstarter
motor.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-409
Page 2746 of 3189
A/T, CVT ModelsNJEL0590S1302
1 CHECK POWER SUPPLY CIRCUIT FOR IMMU
1. Disconnect IMMU (Smart entrance control unit) connector.
2. Check voltage between IMMU (Smart entrance control unit) harness connector M195 terminal 59 (B/W) and ground
with CONSULT-II or tester.
SIIA1687E
Battery voltage should exist.
OK or NG
OK GO TO 2.
NGCheck the following
Park/neutral position relay
Harness for open or short between park/neutral position relay and IMMU
2 CHECK START SIGNAL
1. Connect IMMU (Smart entrance control unit) connector.
2. Check voltage between IMMU (Smart entrance control unit) harness connector M195 terminal 58 (P) and ground with
CONSULT-II or tester.
SIIA1688E
Battery voltage should exist.
OK or NG
OK GO TO 3.
NG Replace IMMU (Smart entrance control unit).
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-410